Lexmark MX310, MX317, MX510, MX511, MX517de Service Manual

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MX310, MX317, MX410, MX417, MX510, MX511, MX517de, XM1135, XM1140, and XM1145 MFPs

Machine Type 7015-270, -47x, -6xx

Service Manual

• Start diagnostics

• Maintenance

• Safety and notices

• Trademarks

• Index

October 03, 2018 www.lexmark.com

P/N 12G2376

Product information

Product name: LexmarkMX310, MX317, MX410, MX417, MX510, MX511, MX517de, XM1135, XM1140, and XM1145 MFPs

Machine type: 7015

Model(s): 270, 279, 470, 479, 630, 670, 675, 679

7015

Edition notice

October 03, 2018

The following paragraph does not apply to any country where such provisions are inconsistent with local law: LEXMARK INTERNATIONAL, INC., PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions; therefore, this statement may not apply to you.

This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in later editions. Improvements or changes in the products or the programs described may be made at any time.

References in this publication to products, programs, or services do not imply that the manufacturer intends to make these available in all countries in which it operates. Any reference to a product, program, or service is not intended to state or imply that only that product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any existing intellectual property right may be used instead. Evaluation and veriﬁcation of operation in conjunction with other products, programs, or services, except those expressly designated by the manufacturer, are the user’s responsibility.

Trademarks

Lexmark and the Lexmark logo are trademarks of Lexmark International, Inc., registered in the United States and/or other countries. PCL® is a registered trademark of the Hewlett-Packard Company. PCL is Hewlett-Packard Company’s designation of a set of printer

commands (language) and functions included in its printer products. This printer is intended to be compatible with the PCL language. This means the printer recognizes PCL commands used in various application programs, and that the printer emulates the functions corresponding to the commands.

PostScript is a registered trademark of Adobe Systems Incorporated in the United States and/or other countries. All other trademarks are the property of their respective owners.

P/N 12G2376

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Product information......................................................................................2

Edition notice.................................................................................................2

Notices, conventions, and safety information.........................................15

Laser notice......................................................................................................................................................... 15

Conventions.........................................................................................................................................................18

Safety information..............................................................................................................................................18

General caution statements........................................................................................................................... 24

Change history............................................................................................25

Change history...................................................................................................................................................25

General information................................................................................... 33

Media guidelines............................................................................................................................................... 33

Paper guidelines.......................................................................................................................................................... 33

Using recycled paper and other oce papers.................................................................................................... 36

Using specialty media................................................................................................................................................36

Supported paper sizes, types, and weights......................................................................................................... 38

Data security notice...........................................................................................................................................41

Tools required for service.................................................................................................................................41

Diagnostics and troubleshooting............................................................. 43

Troubleshooting overview...............................................................................................................................43

Performing the initial troubleshooting check....................................................................................................... 43

Power‑on Reset (POR) sequence............................................................................................................................ 44

Using Safe Mode ......................................................................................................................................................... 44

Fixing print quality issues................................................................................................................................45

Initial print quality check............................................................................................................................................ 46

Gray background or toner fog check.....................................................................................................................46

Blank pages check......................................................................................................................................................49

Print is too dark check................................................................................................................................................55

Print is too light check................................................................................................................................................ 57

Paper curl check..........................................................................................................................................................59

Folded or wrinkled paper check ..............................................................................................................................61

Solid black pages check............................................................................................................................................62

Repeating defects check...........................................................................................................................................65

Skewed print check ....................................................................................................................................................66

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Streaked vertical lines appear on prints check...................................................................................................68

Horizontal light bands check....................................................................................................................................69

Vertical light bands check...........................................................................................................................................71

Vertical dark bands check......................................................................................................................................... 72

Vertical dark streaks with print missing check .....................................................................................................73

White streaks and voided areas check ................................................................................................................. 75

Fine lines are not printed correctly (speciﬁcally Chinese characters) check .............................................. 78

Clipped pages or images check.............................................................................................................................. 79

Compressed images appear on prints check....................................................................................................... 81

Incorrect margins on prints check ..........................................................................................................................82

Toner rubs o check ...................................................................................................................................................83

Toner specks appear on prints check.................................................................................................................... 84

Paper jams...........................................................................................................................................................86

Avoiding jams...............................................................................................................................................................86

Understanding jam messages and locations....................................................................................................... 87

[x]‑page jam, open front door. [20y.xx] .................................................................................................................. 88

[x]‑page jam, clear standard bin. [20y.xx]...............................................................................................................91

[x]‑page jam, open rear door. [20y.xx].....................................................................................................................91

[x]‑page jam, remove tray 1 to clear duplex. [23y.xx] ......................................................................................... 93

[x]‑page jam, open tray [x]. [24y.xx].........................................................................................................................94

[x]‑page jam, open tray [x]. [24y.xx].........................................................................................................................95

[x]‑page jam, clear manual feeder. [25y.xx] ..........................................................................................................96

[x]‑page jam, open automatic feeder top cover. [28y.xx].................................................................................. 97

200 paper jams............................................................................................................................................................98

201 paper jams............................................................................................................................................................103

202 paper jams...........................................................................................................................................................104

23y paper jams ...........................................................................................................................................................106

241 paper jams............................................................................................................................................................107

242–244 paper jams..................................................................................................................................................112

25y paper jams ............................................................................................................................................................119

28y paper jams ...........................................................................................................................................................120

29y paper jams ...........................................................................................................................................................123

Understanding printer messages................................................................................................................125

Cartridge low [88.xy]..................................................................................................................................................125

Cartridge nearly low [88.xy].....................................................................................................................................125

Cartridge very low, [x] estimated pages remain [88.xy]...................................................................................125

Change [paper source] to [custom string] load [paper orientation] ..............................................................125

Change [paper source] to [custom type name] load [orientation].................................................................126

Change [paper source] to [paper size] load [orientation] ................................................................................126

Change [paper source] to [paper type] [paper size] load [orientation].........................................................126

Close ﬂatbed cover and load originals if restarting job [2yy.xx] ....................................................................126

Close door....................................................................................................................................................................126

Conﬁguration change, some held jobs were not restored [57] .....................................................................127

Complex page, some data may not have printed [39] .....................................................................................127

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Defective ﬂash detected [51]...................................................................................................................................127

Disk must be formatted for use in this device....................................................................................................127

Error reading USB drive. Remove USB.................................................................................................................127

Error reading USB hub. Remove hub....................................................................................................................127

Fax partition inoperative. Contact system administrator..................................................................................128

Fax server 'To Format' not set up. Contact system administrator..................................................................128

Fax Station Name not set up. Contact system administrator. .........................................................................128

Fax Station Number not set up. Contact system administrator......................................................................128

Imaging unit low [84.xy] ............................................................................................................................................128

Imaging unit nearly low [84.xy] ...............................................................................................................................128

Imaging unit very low, [x] estimated pages remain [84.xy]..............................................................................129

Incorrect paper size, open [paper source] [34]...................................................................................................129

Insucient memory, some Held Jobs were deleted [37].................................................................................129

Insucient memory, some held jobs will not be restored [37].......................................................................129

Insucient memory for Flash Memory Defragment operation [37] ..............................................................129

Insucient memory to collate job [37]..................................................................................................................130

Insucient memory to support Resource Save feature [35]...........................................................................130

Load manual feeder with [custom string] [paper orientation].........................................................................130

Load manual feeder with [custom type name] [paper orientation] ...............................................................130

Load manual feeder with [paper size] [paper orientation]...............................................................................130

Load manual feeder with [paper type] [paper size] [paper orientation]........................................................131

Load [paper source] with [custom string] [paper orientation] ..........................................................................131

Load [paper source] with [custom type name] [paper orientation].................................................................131

Load [paper source] with [paper size] [paper orientation]...............................................................................132

Load [paper source] with [paper type] [paper size] [paper orientation] .......................................................132

Maintenance kit low [80.xy] .....................................................................................................................................132

Maintenance kit nearly low [80.xy] ........................................................................................................................132

Maintenance kit very low, [x] estimated pages remain [80.xy].......................................................................132

Memory full [38] ..........................................................................................................................................................133

Memory full, cannot print faxes...............................................................................................................................133

Memory full, cannot send faxes..............................................................................................................................133

Network [x] software error [54] ...............................................................................................................................133

No analog phone line connected to modem, fax is disabled.........................................................................133

Non‑Lexmark [supply type], see User’s Guide [33.xy]......................................................................................133

Not enough free space in ﬂash memory for resources [52] ...........................................................................134

Printer had to restart. Last job may be incomplete. ..........................................................................................134

Reinstall defective or unresponsive cartridge [31.xy]........................................................................................134

Reinstall missing or unresponsive cartridge [31.xy]...........................................................................................135

Remove paper from standard output bin.............................................................................................................135

Replace all originals if restarting job.....................................................................................................................135

Replace cartridge, 0 estimated pages remain [88.xy]......................................................................................135

Replace cartridge, printer region mismatch [42.xy]...........................................................................................135

Replace defective imaging unit [31.xy]..................................................................................................................136

Replace jammed originals if restarting job..........................................................................................................136

Replace imaging unit, 0 estimated pages remain [84.xy]................................................................................136

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Replace maintenance kit, 0 estimated pages remain [80.xy].........................................................................137

Reinstall missing or unresponsive imaging unit [31.xy].....................................................................................137

Replace unsupported cartridge [32.xy] ................................................................................................................ 137

Replace unsupported imaging unit [32.xy]..........................................................................................................137

Restore held jobs?......................................................................................................................................................137

Scanner automatic feeder cover open.................................................................................................................137

Scanner disabled by admin [840.01] .....................................................................................................................138

Scanner disabled. Contact system administrator if problem persists. [840.02] ........................................138

Scanner jam, remove all originals from the scanner [2yy.xx]..........................................................................138

Scanner jam, remove jammed originals from the scanner [2yy.xx]...............................................................138

Serial option [x] error [54].........................................................................................................................................138

SMTP server not set up. Contact system administrator. ..................................................................................138

Some held jobs were not restored........................................................................................................................138

Standard network software error [54]...................................................................................................................139

Standard USB port disabled [56]............................................................................................................................139

Supply needed to complete job.............................................................................................................................139

Too many ﬂash options installed [58]....................................................................................................................139

Too many trays attached [58] ..................................................................................................................................139

Unformatted ﬂash detected [53] ............................................................................................................................140

Weblink server not set up. Contact system administrator. ..............................................................................140

User attendance messages.......................................................................................................................... 140

User attendance messages (0–99.99).................................................................................................................140

Unresponsive toner cartridge service check......................................................................................................143

Unsupported toner cartridge service check .......................................................................................................143

Printer/cartridge mismatch service check ...........................................................................................................144

Unsupported imaging unit service check ............................................................................................................144

Imaging unit smart chip contact service check ..................................................................................................145

Toner smart chip compatibility service check.....................................................................................................145

Imaging chip compatibility service check............................................................................................................146

Media size mismatch service check......................................................................................................................146

Supplies mismatch service check.......................................................................................................................... 147

Flash full service check.............................................................................................................................................148

Maintenance kit service check ...............................................................................................................................148

Insucient memory service check ........................................................................................................................148

Imaging unit low service check ..............................................................................................................................149

Toner cartridge low service check.........................................................................................................................149

Printer hardware errors..................................................................................................................................150

111 errors........................................................................................................................................................................150

121 errors.......................................................................................................................................................................154

126 errors......................................................................................................................................................................156

132 errors......................................................................................................................................................................157

133 errors......................................................................................................................................................................158

140 errors......................................................................................................................................................................159

146 errors......................................................................................................................................................................160

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155 errors......................................................................................................................................................................160

171 errors .......................................................................................................................................................................162

Procedure before starting the 9yy service checks ...........................................................................................163

900 errors ....................................................................................................................................................................165

912 errors......................................................................................................................................................................170

94y errors .....................................................................................................................................................................170

950–958 errors ..........................................................................................................................................................170

959 errors.....................................................................................................................................................................173

96y errors.....................................................................................................................................................................174

97y errors .....................................................................................................................................................................175

98y errors .....................................................................................................................................................................176

99y errors..................................................................................................................................................................... 177

ADF/Scanner hardware errors......................................................................................................................178

8yy error messages ...................................................................................................................................................178

Scanner disabled error service check..................................................................................................................179

Scanner carriage failure service check ................................................................................................................180

ADF service check ......................................................................................................................................................181

Scanner conﬁguration error service check .........................................................................................................182

Scan/fax/copy symptoms .........................................................................................................................................182

Black or blank page copy service check .............................................................................................................183

CCD service check.....................................................................................................................................................184

Flatbed motor service check...................................................................................................................................184

Flatbed home position service check...................................................................................................................185

ADF rattling noise service check ...........................................................................................................................186

Flatbed legal scan service check...........................................................................................................................186

ADF streak service check ........................................................................................................................................187

ADF feed errors service check...............................................................................................................................187

ADF duplex failure service check ..........................................................................................................................188

Modem/fax card service check...............................................................................................................................189

Blank spaces on incoming fax service check.....................................................................................................190

Stretched words on incoming fax service check...............................................................................................190

Fax reception service check ....................................................................................................................................191

Fax transmission service check..............................................................................................................................192

Fax error log codes....................................................................................................................................................195

Escalating a fax issue to second‑level support ..................................................................................................198

Input option hardware errors.......................................................................................................................200

321–344 errors.......................................................................................................................................................... 200

Other symptoms..............................................................................................................................................204

Base printer symptoms............................................................................................................................................204

Dead machine service check................................................................................................................................ 205

Controller board service check ............................................................................................................................ 206

Control panel service check...................................................................................................................................207

Control panel button service check .................................................................................................................... 208

USB print service check ......................................................................................................................................... 209

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Front door not closed service check ....................................................................................................................210

Network service check ..............................................................................................................................................211

Service menus........................................................................................... 215

Understanding the control panel and menus.......................................................................................... 215

Using the printer control panel...............................................................................................................................215

Understanding the colors of the Sleep button and indicator lights..............................................................216

Understanding the home screen ...........................................................................................................................217

Using the touch-screen buttons .............................................................................................................................218

Menus list...........................................................................................................................................................219

Diagnostics menu...........................................................................................................................................220

Entering the Diagnostics menu ............................................................................................................................ 220

Registration................................................................................................................................................................ 220

Scanner calibration ....................................................................................................................................................221

PRINT TESTS ..............................................................................................................................................................222

Print Quality Pages....................................................................................................................................................222

HARDWARE TESTS...................................................................................................................................................223

DUPLEX TESTS..........................................................................................................................................................225

INPUT TRAY TESTS..................................................................................................................................................227

OUTPUT BIN TESTS .................................................................................................................................................228

BASE SENSOR TEST ................................................................................................................................................229

DEVICE TESTS ...........................................................................................................................................................229

PRINTER SETUP.........................................................................................................................................................230

EP SETUP ....................................................................................................................................................................232

REPORTS.....................................................................................................................................................................234

EVENT LOG.................................................................................................................................................................234

Scanner tests..............................................................................................................................................................235

Exit Diags.....................................................................................................................................................................239

Conﬁguration menu....................................................................................................................................... 240

Entering the Conﬁguration menu..........................................................................................................................240

Reset ADF Maintenance Kit Counter ...................................................................................................................240

Maintenance Counter Value...................................................................................................................................240

Reset Maintenance Counter...................................................................................................................................240

Print Quality Pages.....................................................................................................................................................241

Reports..........................................................................................................................................................................241

Panel Menus ................................................................................................................................................................241

PPDS Emulation.........................................................................................................................................................242

Download Emuls........................................................................................................................................................242

Safe Mode ...................................................................................................................................................................242

Factory Defaults.........................................................................................................................................................242

Energy Conserve.......................................................................................................................................................243

Fax low power support ............................................................................................................................................243

Min copy memory......................................................................................................................................................243

Num pad job assist....................................................................................................................................................243

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Format fax storage....................................................................................................................................................244

ADF edge erase.........................................................................................................................................................244

Flatbed edge erase...................................................................................................................................................244

Scanner manual registration ..................................................................................................................................244

Disable scanner .........................................................................................................................................................246

Paper Prompts............................................................................................................................................................246

Envelope Prompts.....................................................................................................................................................246

Action for Prompts ....................................................................................................................................................247

Jobs on Disk ...............................................................................................................................................................247

Disk Encryption..........................................................................................................................................................248

Wipe All Settings .......................................................................................................................................................248

Font Density................................................................................................................................................................248

Font Sharpening ........................................................................................................................................................248

Reduced Curl..............................................................................................................................................................248

Require Standby ........................................................................................................................................................249

A5 Loading..................................................................................................................................................................249

UI Automation.............................................................................................................................................................249

LES Applications....................................................................................................................................................... 250

Key Repeat Initial Delay.......................................................................................................................................... 250

Key Repeat Rate ....................................................................................................................................................... 250

Clear Supply Usage History................................................................................................................................... 250

Clear Custom Status..................................................................................................................................................251

USB Speed...................................................................................................................................................................251

Automatically Display Error Screens.....................................................................................................................251

USB PnP........................................................................................................................................................................251

Restore factory defaults...........................................................................................................................................252

Entering Invalid engine mode..................................................................................................................... 252

Entering Recovery mode.............................................................................................................................. 253

Accessing the Network SE menu............................................................................................................... 253

Service Engineer menu.................................................................................................................................253

Accessing the service engineer (SE) menu........................................................................................................253

Service engineer (SE) menu ...................................................................................................................................253

Fax service engineer (SE) menu............................................................................................................................254

Parts removal............................................................................................255

Removal precautions..................................................................................................................................... 255

Data security notice..................................................................................................................................................255

Handling ESD‑sensitive parts.................................................................................................................................255

Controller board/control panel replacement .....................................................................................................256

Restoring the printer conﬁguration after replacing the controller board ...................................................257

Restoring solutions, licenses, and conﬁguration settings ..............................................................................259

Updating the printer ﬁrmware .............................................................................................................................. 260

Backing up eSF solutions and settings ................................................................................................................261

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Ribbon cable connectors ........................................................................................................................................262

Zero Insertion Force (ZIF) connectors.............................................................................................................262

Horizontal top contact connector ....................................................................................................................263

Horizontal bottom contact connector.............................................................................................................266

Vertical mount contact connector....................................................................................................................269

Horizontal sliding contact connector ..............................................................................................................272

Low Insertion Force (LIF) connector................................................................................................................275

Printhead assembly adjustments ..........................................................................................................................276

Removal procedures......................................................................................................................................279

Left side removals...........................................................................................................................................279

Left cover removal ....................................................................................................................................................279

Main drive gearbox removal....................................................................................................................................281

MPF solenoid removal .............................................................................................................................................283

MPF gearbox removal..............................................................................................................................................285

Reverse solenoid removal ......................................................................................................................................288

ACM clutch removal (MX310, MX410) ..................................................................................................................289

Cartridge gearbox removal......................................................................................................................................291

Duplex gear assembly removal .............................................................................................................................292

Right side removals........................................................................................................................................294

Right cover removal..................................................................................................................................................294

Memory access door removal................................................................................................................................297

Tray present sensor removal..................................................................................................................................297

Cooling fan removal..................................................................................................................................................298

Controller board removal........................................................................................................................................299

Controller board shield removal.............................................................................................................................301

Upper shield removal...............................................................................................................................................303

Toner cartridge smart chip contact removal ......................................................................................................303

Modem removal.........................................................................................................................................................305

Front removals.................................................................................................................................................307

Left front mount removal.........................................................................................................................................307

Right front mount removal ......................................................................................................................................307

Transfer roll removal.................................................................................................................................................309

Cartridge plunger removal.......................................................................................................................................310

Name plate cover removal.......................................................................................................................................312

Front bin cover removal............................................................................................................................................314

Control panel assembly removal............................................................................................................................315

UICC removal ..............................................................................................................................................................318

UICC (MX310) removal ..............................................................................................................................................318

UICC shield removal..................................................................................................................................................319

USB cable bracket removal....................................................................................................................................320

Speaker removal .......................................................................................................................................................320

Control panel cover removal...................................................................................................................................321

Display removal (MX410, MX51x)...........................................................................................................................322

Display (MX310) removal ........................................................................................................................................324

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Light tube removal ....................................................................................................................................................324

Keypad assembly removal......................................................................................................................................326

MPF tray removal.......................................................................................................................................................326

MPF pick roller cover removal ...............................................................................................................................329

MPF pick roller removal...........................................................................................................................................329

Bail removal ................................................................................................................................................................330

Jam access cover removal ......................................................................................................................................331

Front access cover removal ...................................................................................................................................332

Front door sensor removal .....................................................................................................................................334

Front input guide removal.......................................................................................................................................334

Separator pad removal ............................................................................................................................................336

Bottom removals.............................................................................................................................................339

Power supply removal..............................................................................................................................................339

Power supply shield removal.................................................................................................................................340

Duplex removal...........................................................................................................................................................341

Duplex sensor and input sensor removal ...........................................................................................................342

Duplex sensor and input sensor (MX310, MX410) removal............................................................................345

Index sensor removal...............................................................................................................................................346

Media present sensor removal..............................................................................................................................347

Toner density sensor removal................................................................................................................................349

Trailing edge sensor removal.................................................................................................................................350

Trailing edge sensor (MX310, MX410) removal...................................................................................................351

Media present sensor ﬂag removal......................................................................................................................355

ACM assembly removal...........................................................................................................................................359

ACM assembly (MX310, MX410) removal.............................................................................................................361

Pick/lift motor gearbox removal.............................................................................................................................365

Tray guide removal ...................................................................................................................................................366

Rear side removals.........................................................................................................................................368

Dust cover removal...................................................................................................................................................368

Rear exit door removal.............................................................................................................................................369

Rear cover removal...................................................................................................................................................370

Bin full sensor removal.............................................................................................................................................370

Redrive assembly removal......................................................................................................................................372

Redrive shaft removal...............................................................................................................................................373

Fuser removal.............................................................................................................................................................375

Top side removals........................................................................................................................................... 377

Top cover assembly removal.................................................................................................................................. 377

Bin extender removal...............................................................................................................................................378

Laser scanning unit (LSU) removal .......................................................................................................................379

ADF/scanner removals..................................................................................................................................382

ADF separator pad removal ..................................................................................................................................382

ADF separator roll removal ....................................................................................................................................384

Flatbed cushion removal ........................................................................................................................................385

Scanner front cover removal..................................................................................................................................386

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Scanner rear cover removal ...................................................................................................................................387

ADF input tray removal ............................................................................................................................................387

ADF unit removal.......................................................................................................................................................388

Scanner assembly removal.....................................................................................................................................390

ADF top cover assembly removal.........................................................................................................................393

ADF cable removal....................................................................................................................................................395

USB cable removal....................................................................................................................................................395

USB wireless cable removal...................................................................................................................................396

ADF hinge removal ...................................................................................................................................................398

Flatbed assembly removal......................................................................................................................................398

Control panel ribbon cable removal.....................................................................................................................398

Speaker cable removal............................................................................................................................................399

Cave light cable removal..........................................................................................................................................401

Restraint pad removal ..............................................................................................................................................402

250/550-sheet option tray removals.........................................................................................................403

Pick roller removal.....................................................................................................................................................403

Separator roll assembly removal...........................................................................................................................404

ACM assembly removal...........................................................................................................................................406

Component locations.............................................................................. 409

Exterior locations............................................................................................................................................409

Front view....................................................................................................................................................................409

Rear view......................................................................................................................................................................410

Connectors......................................................................................................................................................... 411

Controller board...........................................................................................................................................................411

Power supply...............................................................................................................................................................417

Maintenance..............................................................................................419

Inspection guide...............................................................................................................................................419

Scheduled maintenance...............................................................................................................................420

Maintenance kits........................................................................................................................................................420

Resetting the maintenance counter.....................................................................................................................420

Lubrication speciﬁcation................................................................................................................................421

Cleaning the printer.........................................................................................................................................421

Cleaning the printer...................................................................................................................................................421

Cleaning the scanner glass ....................................................................................................................................422

Cleaning the printhead lenses...............................................................................................................................423

Parts catalog............................................................................................. 424

Legend...............................................................................................................................................................424

Assembly 1: Covers.........................................................................................................................................425

Assembly 2: Imaging......................................................................................................................................427

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Assembly 3: Control panel (MX41x, MX51x, XM1140, and XM1145)..................................................... 431

Assembly 4: Control panel (MX31x)............................................................................................................433

Assembly 5: Electronics 1 (MX31x, MX41x, and XM1140).......................................................................435

Assembly 6: Electronics 1 (MX51x and XM1145)......................................................................................439

Assembly 7: Electronics 2 (MX31x, MX41x, and XM1140)......................................................................443

Assembly 8: Electronics 2 (MX51x and XM1145).....................................................................................445

Assembly 9: Frame (MX31x, MX41x, and XM1140).................................................................................. 447

Assembly 10: Frame (MX51x and XM1145)................................................................................................452

Assembly 11: Option trays............................................................................................................................. 455

Assembly 12: Maintenance kits....................................................................................................................457

Assembly 13: Power cords............................................................................................................................459

Assembly 14: Miscellaneous..........................................................................................................................461

Printer speciﬁcations............................................................................... 463

Electrical speciﬁcations.................................................................................................................................463

Operating clearances.................................................................................................................................... 463

Acoustics...........................................................................................................................................................463

Operating environment.................................................................................................................................464

Scanner speciﬁcations.................................................................................................................................. 465

Fax speciﬁcations........................................................................................................................................... 466

Enabling the security reset jumper............................................................................................................ 466

Options and features............................................................................... 469

Available internal options.............................................................................................................................469

Media handling options.................................................................................................................................469

Theory of operation.................................................................................. 471

POR sequence..................................................................................................................................................471

Printer control....................................................................................................................................................471

Paper path information................................................................................................................................... 471

Input tray.......................................................................................................................................................................471

Multipurpose feeder (MPF) .....................................................................................................................................472

Simplex printing.........................................................................................................................................................472

Duplex printing...........................................................................................................................................................473

Media handling components........................................................................................................................474

Main drive gearbox...................................................................................................................................................474

Autocompensator mechanism (ACM) .................................................................................................................. 474

Key components..............................................................................................................................................475

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Sensors ........................................................................................................................................................................475

Other key components ............................................................................................................................................476

Electrophotographic process (EP process).............................................................................................. 478

ADF theory.........................................................................................................................................................481

ADF theory of operation...........................................................................................................................................481

Acronyms...................................................................................................485

Acronyms.......................................................................................................................................................... 485

Index...........................................................................................................487

Part number index....................................................................................497

Part name index....................................................................................... 503

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7015

Notices, conventions, and safety information

Laser notice

The printer is certiﬁed in the U.S. to conform to the requirements of DHHS 21 CFR, Chapter I, Subchapter J for Class I (1) laser products, and elsewhere is certiﬁed as a Class I laser product conforming to the requirements of IEC 60825-1: 2014.

Class I laser products are not considered to be hazardous. The printer contains a Class IIIb (3b) laser that is nominally a 12‑milliwatt gallium arsenide laser operating in the wavelength of 655–675 nanometers. The laser system and printer are designed so there is never any human access to laser radiation above a Class I level during normal operation, user maintenance, or prescribed service condition.

Avis relatif à l'utilisation du laser

Cette imprimante est laser de classe I (1) (DHHS 21 CFR, Chapitre I, Sous-chapitre J). Pour les autres pays, elle est certiﬁée conforme aux exigences des normes CEI 60825-1:2014 relatives aux produits laser de classe I.

Les produits laser de classe I ne sont pas considérés comme dangereux. L'imprimante contient un laser de classe IIIb (3b), laser arséniure de gallium 12 milliwatts opérant sur une longueur d'onde de l'ordre de 655 à 675 nanomètres. Le système laser ainsi que l'imprimante ont été conçus de manière à ce que personne ne soit exposé à des rayonnements laser dépassant le niveau de classe I dans le cadre d'un fonctionnement normal, de l'entretien par l'utilisateur ou de la maintenance.

certiﬁée

conforme aux exigences de la réglementation des Etats-Unis relative aux produits

Notiﬁcació del làser

La impressora està per a productes de làser Classe I (1), i a la resta del món s’ha els requeriments de la norma IEC 60825-1: 2014.

Els productes de làser Classe I no es consideren perillosos. La impressora conté un làser intern Classe IIIb (3b) que normalment és un arsenur de galió de 12 miliwatts, que funciona a la regió de longitud d’ona de 655 a 675 nanòmetres i es troba dins d’una unitat de capçals d’impressió no substituïbles. El sistema làser i la impressora estan dissenyats de manera que les persones no estiguin exposades a una radiació del làser superior al nivell de Classe I durant el funcionament normal, el manteniment de l’usuari o les condicions de servei prescrites.

certiﬁcada

als EUA per complir els requeriments de DHHS 21 CFR, capítol I, subcapítol J

certiﬁcat

com productes de làser Classe I segons

Aviso de láser

Esta impresora se ha certiﬁcado en EE.UU. cumpliendo con los requisitos de DHHS 21 CFR, capítulo I, subcapítulo J para los productos láser de Clase I (1) y en otros países está de Clase I de acuerdo con los requisitos de IEC 60825-1: 2014.

Los productos láser de Clase I no se consideran peligrosos. La impresora contiene un láser interno de Clase IIIb (3b) que nominalmente es un láser de arsenide galio de 12 milivatios que funciona en una longitud de onda de 655-675 nanómetros. El sistema láser y la impresora se han diseñado para que el ser humano no acceda nunca a las radiaciones láser por encima del nivel de Clase I durante su uso normal, ni en tareas de mantenimiento o intervenciones de servicio técnico prescritas.

Notices, conventions, and safety information

certiﬁcada

como un producto láser

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Aviso sobre laser

Esta impressora foi certiﬁcada nos EUA por estar em conformidade com os requisitos do DHHS 21 CFR capítulo I, subcapítulo J, para produtos a laser de Classe I (1) e, nos demais países, foi certiﬁcada como um produto a laser de Classe I em conformidade com os requisitos da IEC 60825-1. 2014.

Os produtos a laser de Classe I não são considerados prejudiciais. A impressora contém, internamente, um laser de Classe IIIb (3b) que é, nominalmente, um laser de arsenieto de gálio de 12 miliwatts operando no comprimento de onda de 655-675 nanômetros. O sistema do laser e a impressora foram projetados para que jamais haja acesso humano à radiação do laser acima do nível da Classe I durante a operação normal ou a manutenção pelo usuário ou sob as condições de manutenção prescritas.

Avvertenze sui prodotti laser

La stampante è certiﬁcata negli Stati Uniti come prodotto conforme ai requisiti DHHS 21 CFR Capitolo I, Sottocapitolo J per i prodotti laser di Classe I (1), mentre in altri paesi è certiﬁcata come prodotto laser di Classe I conforme ai requisiti IEC 60825-1: 2014.

I prodotti laser di Classe I non sono considerati pericolosi. La stampante contiene un laser di Classe IIIb (3b), che è nominalmente un laser ad arseniuro di gallio a 12 milliwatt funzionante a una lunghezza d'onda di 655-675 nanometri. Il sistema laser e la stampante sono stati progettati in modo da impedire l'esposizione a radiazioni laser superiori al livello previsto dalla Classe I durante le normali operazioni di stampa, manutenzione o assistenza.

Laserinformatie

De printer is in de Verenigde Staten gecertiﬁceerd als een product dat voldoet aan de vereisten van DHHS 21 CFR hoofdstuk 1, paragraaf J voor laserproducten van klasse I (1). Elders is de printer gecertiﬁceerd als een laserproduct van klasse I dat voldoet aan de vereisten van IEC 60825-1: 2014.

Laserproducten van klasse I worden geacht geen gevaar op te leveren. De printer bevat een interne laser van klasse IIIb (3b); een galliumarsenide laser met een nominaal vermogen van 12 milliwatt en een golﬂengtebereik van 655-675 nanometer. Het lasersysteem en de printer zijn zodanig ontworpen dat gebruikers nooit blootstaan aan laserstraling die hoger is dan het toegestane niveau voor klasse I-apparaten, tijdens normaal gebruik, onderhoudswerkzaamheden door de gebruiker of voorgeschreven servicewerkzaamheden.

Lasererklæring

Printeren er certiﬁceret i USA i henhold til kravene i DHHS 21 CFR kapitel I, underafsnit J for klasse l (1)laserprodukter og er andre steder certiﬁceret som et klasse I laserprodukt i henhold til kravene i IEC 60825-1:

2014.

Klasse I-laserprodukter anses ikke som farlige. Printeren indeholder internt en klasse IIIb (3b)-laser, der nominelt er en 12 milliwatt galliumarsenid-laser, som fungerer i bølgelængdeområdet 655-675 nanometer. Lasersystemet og printeren er udviklet på en sådan måde, at der ikke er en direkte laserstråling, der overskrider Klasse Iniveauet under normal brug, brugers vedligeholdelse eller de foreskrevne servicebetingelser.

Laser-Hinweis

Der Drucker wurde in den USA zertiﬁziert und entspricht den Anforderungen der Vorschriften DHHS 21 CFR Kapitel I für Laserprodukte der Klasse I (1), andernorts ist er als Laserprodukt der Klasse I Anforderungen von IEC 60825-1 entspricht: 2014.

Notices, conventions, and safety information

zertiﬁziert,

das den

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Laserprodukte der Klasse I werden nicht als gefährlich betrachtet. Der Drucker enthält im Inneren einen Laser der Klasse IIIb (3b), und zwar einen 12-Milliwatt-Gallium-Arsenid-Laser, der im Wellenlängenbereich von 655 bis 675 Nanometern arbeitet. Das Lasersystem und der Drucker sind so konstruiert, dass unter normalen Betriebsbedingungen, bei der Wartung durch den Benutzer oder bei den vorgeschriebenen Wartungsbedingungen Menschen keiner Laserstrahlung ausgesetzt sind, die die Werte für Klasse I überschreitet.

Laserilmoitus

Tämä tulostin on sertiﬁoitu Yhdysvalloissa DHHS 21 CFR Chapter I, Subchapter J -standardin mukaiseksi luokan I (1) -lasertuotteeksi ja muualla IEC 60825-1:2014 -standardin mukaiseksi luokan I lasertuotteeksi.

Luokan I lasertuotteita ei pidetä haitallisina. Tulostimen sisällä on luokan IIIb (3b) laser, joka on nimellisteholtaan 12 mW:n galliumarsenidilaser ja toimii 655–675 nanometrin aallonpituuksilla. Laserjärjestelmä ja tulostin ovat rakenteeltaan sellaisia, että käyttäjä ei joudu alttiiksi luokkaa 1 suuremmalle säteilylle normaalin käytön, ylläpidon tai huollon aikana.

Lasermerknad

Skriveren er sertiﬁsert i USA for samsvar med kravene i DHHS 21 CFR kapittel I, underkapittel J for laserprodukter av klasse I (1) og er andre steder kravene i IEC 60825-1: 2014.

sertiﬁsert

som et laserprodukt av klasse I som samsvarer med

Laserprodukter av klasse I anses ikke som helseskadelige. Skriveren inneholder en intern laser av klasse IIIb (3b) som nominelt er en 12 milliwatt galliumarsenid-laser som opererer i bølgelengder på 655–675 nanometer. Lasersystemet og skriveren er utformet slik at mennesker ikke utsettes for laserstråling utover nivået i klasse I under normal drift, vedlikehold eller foreskrevet service.

Meddelande om laser

Skrivaren är laserprodukter, och på andra platser

2014.

Laserprodukter av klass I anses inte vara skadliga. Skrivaren innehåller en klass IIIb (3b)-laser, vilket är en 12 mW galliumarseniklaser som arbetar inom en våglängd på 655–675 nm. Lasersystemet och skrivaren är utformade så att människor aldrig utsätts för laserstrålning över klass I-nivå under normala förhållanden vid användning, underhåll eller service.

certiﬁerad

i USA i enlighet med kraven i DHHS 21 CFR kapitel I, underkapitel J för klass I (1)-

certiﬁerad

som en klass I-laserprodukt i enlighet med kraven i IEC 60825-1.

レーザーについて

本機は、米国においてクラス I（1）レーザー製品に対する DHHS 21 CFR Chapter I、Subchapter J の要件に準拠し、その他の国では IEC 60825-1: 2014 の要件に準拠するクラス I レーザー製品として認可されています。

クラス I レーザー製品は、危険性がないとみなされています。本機には、クラス IIIb（3b）レーザーが内蔵されています。これは、655 ～ 675 ナノメートルの波長で動作する定格 12 ミリワットのガリウムヒ素レーザーです。レーザーシステムとプリンタは、通常の操作、ユーザによるメンテナンス、または所定のサービス条件の下で、ユーザがクラス I レベルを超えるレーザー放射に絶対にさらされないように設計されています。

레이저 고지사항

프린터는 미국에서 레이저 제품용 DHHS 21 CFR Chapter I, Subchapter J의 요구 사항을 준수하며 이외 지역에 서 IEC 60825-1:2014의 요구 사항을 준수하는 클래스 I(1) 레이저 제품으로 승인되었습니다.

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클래스 I 레이저 제품은 위험한 제품으로 간주되지 않습니다. 프린터에는 655‑675 나노미터의 파장 영역에서 작동하는 공칭 12밀리와트 갈륨 비소 레이저인 클래스 IIIb(3b) 레이저가 내부에 포함되어 있습니다. 레이저 시 스템과 프린터는 정상적인 작동, 사용자 유지 관리 또는 사전 설명된 서비스 조건에는 사람에게 클래스 I 수준 이상의 레이저 방사가 노출되지 않도록 설계되었습니다.

激光注意事项

本打印机在美国认证合乎 DHHS 21 CFR Chapter I，Subchapter J 对分类 I (1) 激光产品的标准，而在其他地区则被认证是合乎 IEC 60825-1: 2014 的分类 I 激光产品。

一般认为分类 I 激光产品不具有危险性。本打印机内部含有分类 IIIb (3b) 的激光，是标称值为 12 毫瓦的砷化镓激光，其工作波长范围在 655–675nm 之间。本激光系统及打印机的设计，在一般操作、使用者维护或规定内的维修情况下，不会使人体接触分类 I 以上等级的辐射。

雷射聲明

本印表機係經過美國核可，符合 DHHS 21 CFR，Chapter I，Subchapter J 規定的 I (1) 級雷射產品；在美國以外的地區，為符合 IEC 60825-1 2014 規定的 I 級雷射產品。

根據 I 級雷射產品的規定，這類產品不會對人體造成傷害。本印表機內部所採用之 IIIb (3b) 級雷射只會產生 12 毫瓦特 (milliwatt)、波長 655 至 675 奈米 (nanometer) 的鎵砷放射線 (gallium arsenide laser)。使用者只要以正確的方法操作及維護保養，並依照先前所述之維修方式進行修護，此印表機與其雷射系統絕不會產生 I 級以上的放射線，而對人體造成傷害。

Conventions

Note: A note

Warning: A warning

CAUTION: A caution indicates a potentially hazardous situation that could injure you.

Dierent types of caution statements include:

CAUTION—POTENTIAL INJURY: Indicates a risk of injury.

CAUTION—SHOCK HAZARD: Indicates a risk of electrical shock.

CAUTION—HOT SURFACE: Indicates a risk of burn if touched.

CAUTION—TIPPING HAZARD: Indicates a crush hazard.

CAUTION—PINCH HAZARD: Indicates a risk of being caught between moving parts.

identiﬁes

information that could help you.

identiﬁes

something that could damage the product hardware or software.

Safety information

• The safety of this product is based on testing and approvals of the original design and

The manufacturer is not responsible for safety in the event of use of unauthorized replacement parts.

speciﬁc

• The maintenance information for this product has been prepared for use by a professional service person

and is not intended to be used by others.

components.

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• There may be an increased risk of electrical shock and personal injury during disassembly and servicing of

this product. Professional service personnel should understand this risk and take necessary precautions.

CAUTION—SHOCK HAZARD: When you see this symbol, there is a danger from hazardous voltage in the area of the product where you are working. Unplug the product before you begin, or use caution if the product must receive power in order to perform the task.

CAUTION—POTENTIAL INJURY: The lithium battery in this product is not intended to be replaced. There is a danger of explosion if a lithium battery is incorrectly replaced. Do not recharge, disassemble, or incinerate a lithium battery. Discard used lithium batteries according to the manufacturer's instructions and local regulations.

Consignes de sécurité

• La sécurité de ce produit est basée sur des tests et certiﬁcations de sa conception d'origine et de ses

composants spéciﬁques. Le fabricant décline toute responsabilité en cas d'utilisation de pièces de rechange non autorisées.

• Les informations de maintenance de ce produit sont destinées à des professionnels qualiﬁés et ne sont pas

conçues pour être utilisées par d'autres personnes.

• Il existe un risque potentiel de choc électrique et de blessures lors du démontage et de la maintenance de

ce produit. Le personnel professionnel de maintenance doit comprendre les risques et prendre les précautions nécessaires.

ATTENTION—RISQUE D'ELECTROCUTION : Ce symbole indique un danger lié à des niveaux de tension dangereux dans la zone du produit à manipuler. Débranchez le produit avant de commencer, ou agissez avec prudence si le produit doit être alimenté pour eectuer l'opération.

ATTENTION—RISQUE DE BLESSURE : La batterie lithium de ce produit n'est pas destinée à être remplacée. Si vous ne respectez pas les instructions de remplacement de la batterie, vous risquez de provoquer une explosion. Ne rechargez pas, ne désassemblez pas et ne brûlez pas la batterie au lithium. Mettez les batteries lithium usagées au rebut selon les instructions du fabricant et les réglementations locales.

Informació de seguretat

• La seguretat d'aquest producte es basa en les proves i les homologacions del disseny original i dels

components especíﬁcs. El fabricant no és responsable de la seguretat en el cas d'ús de peces de recanvi no autoritzades.

• La informació de manteniment d'aquest producte s'ha preparat per a l'ús d'un professional tècnic i no per

a l'ús d'altres persones.

• És possible que el risc de descàrrega elèctrica i lesions personals augmenti durant el desmuntatge i les

tasques de manteniment d'aquest producte. El professional tècnic ha de comprendre aquest risc i prendre les precaucions necessàries.

PRECAUCIÓ. PERILL DE DESCÀRREGA ELÈCTRICA: Quan vegeu aquest símbol, indica que hi ha un perill de voltatge elevat en l'àrea del producte on esteu treballant. Desconnecteu el producte abans de començar o tingueu precaució si el producte ha de rebre alimentació per realitzar la tasca.

PRECAUCIÓ. POSSIBLES DANYS: La bateria de liti d'aquest producte no ha estat dissenyada perquè se substitueixi. Hi ha perill d’explosió si no es substitueix correctament la bateria de liti. No recarregueu, desmunteu o incinereu una bateria de liti. Desfeu-vos de les bateries de liti usades d’acord amb les instruccions del fabricant i les regulacions locals.

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Información de seguridad

• La seguridad de este producto se basa en las pruebas y comprobaciones del diseño original y los

componentes de repuesto no autorizadas.

especíﬁcos.

El fabricante no se hace responsable de la seguridad en caso de uso de piezas

• La información de mantenimiento de este producto se ha preparado para su uso por parte de un profesional

de asistencia técnica y no está diseñada para su uso por parte de otros usuarios.

• Es posible que haya un mayor riesgo de descarga eléctrica y daños personales durante el desmontaje y el

mantenimiento de este producto. El personal de asistencia profesional debe conocer este riesgo y tomar las precauciones necesarias.

PRECAUCIÓN: PELIGRO DE DESCARGAS ELÉCTRICAS: Cuando vea este símbolo, existe peligro de tensiones peligrosas en el área del producto en la que está trabajando. Desconecte el producto antes de empezar o tenga cuidado si el producto debe recibir alimentación a ﬁn de realizar la tarea.

PRECAUCIÓN: POSIBLES DAÑOS PERSONALES: La batería de litio de este producto no debe reemplazarse. Existe riesgo de explosión si se sustituye incorrectamente una batería de litio. No recargue, desmonte ni incinere una batería de litio. Deseche las baterías de litio usadas según las instrucciones del fabricante y las normativas locales.

Informações sobre segurança

• A segurança deste produto é baseada em testes e aprovações do design original e de componentes

especíﬁcos. O fabricante não é responsável por segurança em caso de uso não autorizado de peças de substituição.

• As informações sobre manutenção deste produto foram preparadas para utilização por um técnico

proﬁssional

experiente e não se destinam ao uso por outros.

• Pode haver maior risco de choque elétrico e danos pessoais durante a desmontagem e manutenção deste

produto. Os técnicos proﬁssionais experientes devem entender esses riscos e tomar as precauções necessárias.

ATENÇÃO—RISCO DE CHOQUE: Se você vir este símbolo, existe perigo de tensão elétrica na área do produto onde está trabalhando. Desligue o produto antes de começar ou tenha cuidado se o produto precisar receber energia para executar a tarefa.

ATENÇÃO—RISCO DE FERIMENTO: A bateria de lítio neste produto não deve ser substituída. Existe o risco de explosão se uma bateria de lítio for substituída incorretamente. Não recarregue, desmonte nem incinere uma bateria de lítio. Descarte as baterias de lítio usadas de acordo com as instruções do fabricante e regulamentos locais.

Informazioni sulla sicurezza

• La sicurezza di questo prodotto è basata sui test e sulle approvazioni del design originale e dei componenti

speciﬁci. Il produttore non è responsabile della sicurezza in caso di utilizzo di parti di ricambio non autorizzate.

• Le informazioni di manutenzione per questo prodotto sono state predisposte per essere utilizzate da un

tecnico dell'assistenza professionale e non sono state previste per l'uso da parte di altre persone.

• È possibile che vi sia un maggior rischio di scosse elettriche e lesioni personali durante lo smontaggio e la

manutenzione di questo prodotto. Il personale dell'assistenza deve comprendere questo rischio e prendere le precauzioni necessarie.

Notices, conventions, and safety information

ATTENZIONE - PERICOLO DI SCOSSE ELETTRICHE: Questo simbolo indica la presenza di un

rischio per tensioni pericolose nell'area del prodotto in cui si lavora. Scollegare l'alimentazione prima di iniziare, o prestare la massima attenzione se per eettuare l'operazione il prodotto deve ricevere l'alimentazione.

ATTENZIONE - PERICOLO DI LESIONI: La batteria al litio contenuto nel prodotto non deve essere sostituita: in caso di sostituzione errata della batteria al litio, potrebbe veriﬁcarsi un'esplosione. Non ricaricare, smontare o bruciare batterie al litio. Smaltire le batterie al litio usate seguendo le istruzioni del produttore e le norme locali.

Informatie over veiligheid

• De veiligheid van dit product is gebaseerd op testen en goedkeuringen van het oorspronkelijke ontwerp

en speciﬁeke onderdelen. De fabrikant is niet verantwoordelijk voor de veiligheid bij gebruik van ongeautoriseerde vervangende onderdelen.

• De informatie over het onderhoud van dit product is opgesteld voor gebruik door een professionele

onderhoudsmonteur en is niet bedoeld voor gebruik door anderen.

• Tijdens demontage en onderhoud van dit product bestaat mogelijk een hoger risico op elektrische

schokken en lichamelijk letsel. Professionele onderhoudsmonteurs dienen op de hoogte te zijn van dit risico en de noodzakelijke voorzorgsmaatregelen te nemen.

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LET OP: GEVAAR VOOR ELEKTRISCHE SCHOKKEN: Wanneer u dit symbool ziet, bestaat er een

gevaar voor gevaarlijke spanning in het gebied van het product waaraan u werkt. Haal de stekker van het product uit het stopcontact voordat u begint, of let extra goed op als het product stroom nodig heeft om een taak te kunnen uitvoeren.

LET OP: RISICO OP LETSEL: De lithiumbatterij in dit product moet niet worden vervangen. Wanneer de lithiumbatterij niet juist wordt vervangen, bestaat er explosiegevaar. Probeer nooit lithiumbatterijen op te laden, open te maken of te verbranden. Gooi gebruikte lithiumbatterijen weg volgens de aanwijzingen van de fabrikant en houd hierbij de plaatselijke regelgeving in acht.

Sikkerhedsoplysninger

• Sikkerheden for dette produkt er baseret på afprøvning og godkendelser af det oprindelige design og

speciﬁkke komponenter. Producenten er ikke ansvarlig for sikkerhed i tilfælde af brug af uautoriserede dele til udskiftning.

• Vedligeholdelsesoplysninger om dette produkt er udarbejdet til brug af en kvaliﬁceret servicetekniker og

er ikke beregnet til at blive brugt af andre.

• Der kan være en forøget risiko for elektrisk stød eller personskade ved afmontering og service af dette

produkt. Professionelt servicepersonale bør forstå denne risiko og tage nødvendige forholdsregler.

FORSIGTIG - ELEKTRISK STØD: Når du ser dette symbol, er der risiko for elektrisk spænding i nærheden af produktet, hvor du arbejder. Tag strømstikket ud inden du begynder, eller udvis forsigtighed, hvis produktet skal modtage strøm for at udføre opgaven.

FORSIGTIG - RISIKO FOR SKADE: Litium-batteriet i dette produkt er ikke beregnet til at blive udskiftet. Der er fare for eksplosion, hvis et litium-batteri udskiftes forkert. Du må ikke genoplade, demontere eller arænde et litium-batteri. Brugte litium-batterier skal bortskaes i overensstemmelse med producentens instruktioner og lokale retningslinjer.

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Sicherheitshinweise

• Die Sicherheit dieses Produkts basiert auf Tests und Zulassungen des Originaldesigns und der speziﬁschen

Komponenten. Sofern nicht autorisierte Ersatzteile eingesetzt werden, übernimmt der Hersteller keinerlei Verantwortung in Bezug auf die Sicherheit dieses Produkts.

• Die Wartungsinformationen für dieses Produkt wurden für ausgebildete Servicemitarbeiter

zusammengestellt und dürfen nicht von anderen verwendet werden.

• Möglicherweise besteht bei der Demontage und Wartung dieses Produkts eine erhöhte Stromschlag- und

Verletzungsgefahr. Ausgebildete Servicemitarbeiter sollten sich dieser Gefahr bewusst sein und die notwendigen Vorsichtsmaßnahmen ergreifen.

VORSICHT – STROMSCHLAGGEFAHR: Wenn Sie dieses Symbol sehen, besteht eine Gefahr durch gefährliche Spannungen in dem Produktbereich, in dem Sie arbeiten. Trennen Sie das Produkt von seiner Stromverbindung, bevor Sie beginnen, oder gehen Sie vorsichtig vor, wenn das Produkt für die Durchführung der Aufgabe mit Strom versorgt werden muss.

VORSICHT – MÖGLICHE VERLETZUNGSGEFAHR Die Lithiumbatterie in diesem Produkt darf nicht ausgetauscht werden. Wird eine Lithiumbatterie nicht ordnungsgemäß ausgetauscht, besteht Explosionsgefahr. Lithiumbatterien dürfen auf keinen Fall wieder aufgeladen, auseinander genommen oder verbrannt werden. Befolgen Sie zum Entsorgen verbrauchter Lithiumbatterien die Anweisungen des Herstellers und die örtlichen Bestimmungen.

Turvallisuusohjeet

• Tämän laitteen turvallisuus perustuu alkuperäisen rakenteen ja tiettyjen osien testaukseen ja

hyväksymiseen. Valmistaja ei vastaa turvallisuudessa, jos laitteessa on käytetty luvattomia vaihto-osia.

• Tämän tuotteen huoltoa koskevat tiedot on tarkoitettu vain ammattitaitoisen huoltohenkilön käyttöön.

• Tämän tuotteen purkamiseen ja huoltoon voi liittyä kasvanut sähköiskun tai henkilövahingon vaara.

Ammattitaitoisen huoltohenkilön on ymmärrettävä tämä vaara ja toimittava sen edellyttämällä tavalla.

HUOMIO – SÄHKÖISKUN VAARA: Tämä symboli ilmaisee, että tuotteen työskentelyalueella on olemassa vaarallinen jännite. Irrota laite verkkovirrasta ennen kuin aloitat tai toimi erittäin varovasti, jos laitteessa on oltava virta työn aikana.

HUOMIO – TAPATURMAN MAHDOLLISUUS: Tuotteessa olevaa litiumakkua ei ole tarkoitettu vaihdettavaksi. Litiumakun poistaminen väärin aiheuttaa räjähdysvaaran. Älä lataa, pura tai polta litiumakkua. Hävitä käytetyt litiumakut valmistajan ohjeiden ja paikallisten säädösten mukaisesti.

Sikkerhetsinformasjon

• Sikkerheten til dette produktet er basert på testing og godkjenning av originaldesignet og bestemte

komponenter. Produsenten er ikke ansvarlig for sikkerheten ved bruk av uautoriserte reservedeler.

• Vedlikeholdsinformasjonen for dette produktet er tilrettelagt for bruk av profesjonelt servicepersonale, og

er ikke ment for bruk av andre.

• Det kan være en økt risiko for elektrisk støt og personskade under demontering og vedlikehold av produktet.

Profesjonelt servicepersonell må være innforstått med denne risikoen og ta nødvendige forholdsregler.

FORSIKTIG – FARE FOR STØT: Dette symbolet betyr at det er fare for farlig spenning i det området av produktet der du arbeider. Koble fra produktet før du begynner, eller vær forsiktig hvis produktet må ha strøm for å kunne utføre oppgaven.

Notices, conventions, and safety information

7015

FORSIKTIG – POTENSIELLE SKADER: Litiumbatteriet i dette produktet er ikke beregnet for å byttes.

Det er fare for eksplosjon hvis litiumbatteriet skiftes ut på feil måte. Ikke lad opp, demonter eller destruer et litiumbatteri. Kast brukte litiumbatterier i henhold til produsentens instruksjoner og lokale regelverk.

Säkerhetsinformation

• Säkerheten för denna produkt baseras på tester och godkännanden av ursprungsdesignen och av speciﬁka

komponenter. Tillverkaren har inget ansvar vid användning av oauktoriserade reservdelar.

• Underhållsinformationen för produkten är avsedd att användas av utbildade servicetekniker och inte avsedd

att användas av andra.

• Risken för elektriska stötar och personskador kan vara förhöjd vid isärtagning och service av produkten.

Professionell servicepersonal bör vara medvetna om denna risk och vidta nödvändiga försiktighetsåtgärder.

VAR FÖRSIKTIG– RISK FÖR ELEKTRISK STÖT: När du ser denna symbol är det risk att det farlig spänning i den del av produkten du arbetar med. Koppla från strömmen innan du börjar, eller var försiktig om produkten måste vara strömförsörjd för att uppgiften ska kunna utföras.

VAR FÖRSIKTIG – RISK FÖR SKADA: Litiumbatteriet i produkten är inte utbytbart. Om ett litiumbatteri byts ut på fel sätt ﬁnns det risk att det exploderar. Du får inte ladda om, ta isär eller elda upp ett litiumbatteri. Gör dig av med använda litiumbatterier enligt tillverkarens instruktioner och lokala föreskrifter.

ﬁnns

安全情報

• 本製品の安全性は、本来の設計、特定コンポーネントの試験、承認に基づいています。承認されていない交換

部品をお客様が使用した場合、メーカーは安全性に対して責任を負いません。

• 本製品のメンテナンス情報は、専門のサービス担当者による利用を目的としており、その他の人を対象としてい

ません。

• 本製品の分解や保守サービスを行う場合は、感電や傷害の危険性があります。専門のサービス担当者はこの

危険性を理解し、十分な対策を講じる必要があります。

注意—感電危険：この表記がある場合、対象製品の作業領域には、高電圧による危険性が生じています。作業を始場合は、十分に注意するようにしてください。

注意—傷害の恐れあり：この製品に使用されているリチウム電池の交換を誤ると破裂する危険性用済みのリチウム電池を廃棄

める前に

、製品から電源コードを

する際は

取り外してください

があります

、製造元の指示およびお使いの地域の法律に

。リチウム電池の

。また作業時に、製品に給電する

電池は

、交換を前提としていません。リチウム

充電

、解体、焼却はしないでください。使

必要がある

従ってください

。

안전 정보

• 이 제품의 안전은 기본 디자인 및 특정 구성품의 승인 및 테스팅을 기반으로 합니다. 제조업체는 권한 없는

교체 부품 사용 시 안전에 대해 책임을 지지 않습니다.

• 이 제품의 유지관리 정보는 전문 서비스 요원을 대상으로 하며 다른 사람은 사용할 수 없습니다.

• 제품 분해 및 서비스 중에는 감전 및 상해 위험이 증가할 수 있습니다. 전문 서비스 요원은 이와 같은 위험

을 이해하고 필요한 예방 조치를 취해야 합니다.

주의—감전 위험: 이 기호가 표시된 경우 작업 중인 제품 주변에서 위험 전압 위험이 있습니다. 사용 전/후에 전원 코드를 뽑아 두시고 제품에서 작업을 수행하는 데 반드시 전원이 필요한 경우에는 주의 하여 사용하십시오.

Notices, conventions, and safety information

7015

주의—상해 위험: 이 제품에 들어 있는 리튬 배터리는 교체할 수 없습니다. 리튬 배터리를 잘못 교체 하면 폭발할 위험이 있습니다. 리튬 배터리를 충전, 분해하거나 불에 태우지 마십시오. 제조업체의 지침과 지역 규정에 따라 다 쓴 리튬 배터리를 폐기하십시오.

安全信息

• 本产品的安全性以原始设计和特定组件的测试和审批为基础。如果使用未经授权的替换部件，制造商不对

安全性负责。

• 本产品的维护信息仅供专业服务人员使用，并不打算由其他人使用。

• 本产品在拆卸和维修时，遭受电击和人员受伤的危险性会增高。专业服务人员对这点必须有所了解，并采

取必要的预防措施。

小心—电击危险：当您看到此符号时，在您工作的产品区域内存在危险电压的威胁。在您开始操作之前请拔掉产品电源，如果产品必须接收功率才能执行任务，请务必谨慎操作。

小心—可能的伤害：本产品中的锂电池不可更换。如果不正确更换锂电池，可能会有爆炸危险。不要再充电、拆解或焚烧锂电池。丢弃旧的锂电池时应按照制造商的指导及当地法规进行处理。

安全資訊

• 本產品安全性係以原始設計及特定元件之測試與核准為依據。如有使用未獲授權替換組件之情形者，製造

商對安全性概不負責。

• 本產品之維護資訊僅供專業維修人員使用，而非預定由他人使用。

• 拆裝及維修本產品時，有可能造成電擊與人員損傷之危險。專業維修人員應瞭解前項危險並採取必要措施。

請當心—觸電危險：當您看到此符號時，表示您所在產品工作區有危險電壓。開始工作之前，請先拔掉產品電源線，若產品必須接上電源方能執行作業，用電時請務必小心。

請當心—潛在受傷危險性：本產品中的鋰電池原本並不需要予以更換。若未正確更換鋰電池，可能會有爆炸的危險。請勿將鋰電池充電、拆裝或焚燒。請遵照製造商的指示及當地法規，丟棄用過的電池。

General caution statements

CAUTION—POTENTIAL INJURY: To avoid the risk of ﬁre or electrical shock, connect the power cord to

an appropriately rated and properly grounded electrical outlet that is near the product and easily accessible.

CAUTION—POTENTIAL INJURY: To avoid the risk of ﬁre or electrical shock, use only the power cord provided with this product or the manufacturer's authorized replacement.

CAUTION—POTENTIAL INJURY: Do not use this product with extension cords, multioutlet power strips, multioutlet extenders, or UPS devices. The power capacity of these types of accessories can be easily overloaded by a laser printer and may result in a risk of ﬁre, property damage, or poor printer performance.

CAUTION—POTENTIAL INJURY: Only a Lexmark Inline Surge Protector that is properly connected between the printer and the power cord provided with the printer may be used with this product. The use of non-Lexmark surge protection devices may result in a risk of ﬁre, property damage, or poor printer performance.

Notices, conventions, and safety information

7015

Change history

October 3, 2018

• Updated the redrive assembly removal topic in the parts removals chapter.

July 12, 2018

• For Performing the initial troubleshooting check, relative humidity values were updated (now 8 to 80%).

• A note for ambient temperature and relative humidity information was added to the Fuser service check.

May 16, 2018

• Updated step 7 of the reverse solenoid removal in the parts removal chapter to disconnect J10 instead of

JDSOL1.

• Corrected the wiring diagram with the following: – J10 is now connected to the reverse solenoid. – JCVR1 is now connected to the front cover sensor.

May 3, 2018

• Updated the 24x error code tables in the Diagnostics and troubleshooting chapter.

• Added the 24x.06 service check topic in the Diagnostics and troubleshooting chapter.

March 9, 2018

• Updated the ADF service check and the Main drive gearbox service check under the Diagnostics and

troubleshooting chapter.

• Added PN 40X8050 for the bin full sensor with actuator and static brush under Electronics 1 (MX31x, MX41x,

and XM1140) and Electronics 1 (MX51x and XM1145) in the parts catalog chapter.

January 9, 2018

• Updated the graphic for PN 40X9119 to remove the ﬂag for the bin full sensor in the Electronics 1 (MX31x,

MX41x, and XM1140) and Electronics 1 (MX51x and XM1145) in the parts catalog chapter.

December 19, 2017

• Updated the graphic for PN 40X9131 and PN 40X8302 to include the MPF links in the assembly.

• Added PN 41X2300 for the access cover link under the Covers assembly in the Parts Catalog chapter.

• Added PN 40X9939 and PN 41X1946 under Miscellaneous in the Parts Catalog chapter.

August 25, 2017

• Updated “Blank pages check” on page 49.

• Updated “Solid black pages check” on page 62.

May 31, 2017

• Updated 40X4827 to 40X9652 in the topic “Miscellaneous” in the “Parts catalog” chapter.

Change history

7015

May 24, 2017

• Updated the "912 error messages" topic of the "912 errors" subgroup of the "Printer hardware errors" group

of the "Diagnostics and troubleshooting" chapter.

May 16, 2017

• Updated the entire group, “Fixing print quality issues” on page 45, which includes replacement of the

existing print quality icons with actual print defect outputs. Contents from the Service Manuals, KB and UG articles are merged to come up with the new PQ checks.

April 24, 2017

• Added "MX517de" in the cover.

• Added "MX517de" in the introduction to the “General information" chapter.

• Added 41X2014 to the revised topic "Control panel (MX41x, MX51x, XM1140, and XM1145)" in the "Parts

catalog" chapter.

February 27, 2017

• Added "MX317" and "MX417" in the cover.

• Added "MX317dn" and "MX417de" in the introduction to the “General information" chapter.

• Revised the topics "Control panel (MX31x)" and "Control panel (MX41x, MX51x, XM1140, and XM1145)" in the

"Parts catalog" chapter.

December 9, 2016

• Revised a graphic in the “Printhead assembly adjustments” topic in the “Repair information” chapter.

• Revised the “Laser scanning unit (LSU) removal” topic in the “Repair information” chapter.

• Added 41X1025 to the “Electronics 2” topic in the “Parts catalog” chapter.

December 5, 2016

• Updated the topic “ACM clutch removal (MX310, MX410)” in the “Repair information” chapter.

October 21, 2016

• Corrected the descriptions of 40X7592 to “tray present sensor” and 41X0259 to “narrow media sensor” in

the topic “Electronics 1 (MX51X and XM1145)” in the “Parts catalog” chapter.

• Updated the topics “Unresponsive imaging unit service check” and “Blank pages check” in the “Diagnostic

information” chapter.

September 30, 2016

• Deleted the ﬁrst step of the “Blank pages check” topic in the “Fixing print quality issues” group in the

“Diagnostic information” chapter.

September 14, 2016

• Changed 40X9108 to 41X0917 in the topic "Imaging” in the chapter “Parts catalog.”

September 2, 2016

• Updated the topic "ADF paper jam service check” in the group “Paper jams” in the chapter “Diagnostic

information.”

Change history

August 17, 2016

• Updated “ADF paper jam service check” on page 121.

• Updated the wiring diagram.

• Moved topics on clearing jams under the topic “Understanding jam messages and locations” in the

“Diagnostic information” chapter.

• Updated the topic “Unresponsive imaging unit service check” in the “Diagnostic information” chapter.

June 28, 2016

• Updated the ”LES Applications” topic in the “Service menus” chapter.

June 2, 2016

• Updated the graphic of the “Electronics 2” topics in the “Parts catalog” chapter.

• Updated the “Miscellaneous” topic in the “Parts catalog” chapter. – Updated the description for 40X8331. – Added 41X0568.

April 14, 2016

• Updated the Electronics 1 assembly (MX51x and XM1145) to add bin full sensor with PN 40X9119.

• Changed the PN for Forms and Barcode card from 40X8616 to 41X0862.

• Changed the PN for IPDS card from 40X8617 to 41X0864.

• Changed the PN for Prescribe card from 40X8618 to 41X0865.

7015

March 23, 2016

• Revised the topic “Fuser removal” in the “Rear side removals" group of the “Repair information” chapter.

• Revised the topic “Right cover removal” in the “Right side removals" group of the “Repair information”

chapter.

• Revised the topic “Covers” in the ”Parts catalog” chapter.

• Revised the following topics in the “Diagnostic information” chapter: – Performing the initial troubleshooting check – Initial print quality check – User attendance messages (0‑99.99) – Toner cartridge smart chip contact service check – Imaging unit smart chip contact service check – Toner smart chip compatibility service check – Imaging chip compatibility service check – Printer/cartridge mismatch service check – Toner starvation service check

• Created these new checks: – Unsupported imaging unit service check – Unresponsive toner cartridge service check – Printer cartridge mismatch

Change history

7015

– Unsupported toner cartridge – Supplies mismatch service check

• Updated CTLS service check. Even changed the title to “Unresponsive imaging unit service check.”

February 18, 2016

• Added the topic “Enabling the security reset jumper” in ”Appendix A: Printer speciﬁcations” chapter.

February 10, 2016

• Removed 41X0003 from the “Electronics 2” topics in the “Parts catalog” chapter.

December 1, 2015

• Updated the topic “Toner density sensor removal” in the ”Bottom removals” group in the “Repair information”

chapter to add installation notes.

• Updated the topic “Covers” in the “Parts catalog” chapter to update the descriptions for 40X9131 and

40X8302.

• Updated the topic “Frame (MX51x and XM1145)” in the “Parts catalog” chapter to update 40X8278 to

40X8777.

• Updated the topic “Electronics 1 (MX51x and XM1145)” in the “Parts catalog” chapter to update 41X0259 to

40X7592 and 40X7592 to 41X0259.

November 17, 2015

• Updated “Electronics 2 (MX31x, MX41x, and XM1140)” on page 443 to change description for PN

40X8047 to “Trailing edge sensor (MX31x, MX41x, and XM1140)”.

• Updated “Electronics 2 (MX51x and XM1145)” on page 445 to change description for PN 40X8045 to

“Trailing edge sensor (MX51x and XM1145).”

November 4, 2015

• Revised the “Sensor (narrow media) jam service check” topic in the “201 paper jams” subgroup in the “Paper

jams” group in the “Diagnostic information” chapter.

• Added step 6, with graphic, in the “MPF tray removal” topic in the “Front removals” group in the “Repair

information” chapter.

• Created “Electronics 1 (MX31x, MX41x, and XM1140)” topic in the “Repair information” chapter.

• Revised “Electronics 1” topic into “Electronics 1 (MX51x and XM1145)” topic in the “Repair information”

chapter.

• Created “Electronics 2 (MX31x, MX41x, and XM1140)” topic in the “Repair information” chapter.

• Revised “Electronics 2” topic into “Electronics 2 (MX51x and XM1145)” topic in the “Repair information”

chapter.

• Created “Frame (MX31x, MX41x, and XM1140)” topic in the “Repair information” chapter.

• Revised “Frame” topic into “Frame (MX51x and XM1145)” topic in the “Repair information” chapter.

• Revised graphics in the “Option trays” topic in the “Parts catalog” chapter.

October 13, 2015

• Cross‑references pointing to scanner manual registration and scanner calibration were added to the

scanner assembly and ﬂatbed assembly removals.

Change history

7015

June 15, 2015

• Part number 41X0547 was replaced with 41X0918.

• The control panel assembly FRUs (41X0755 and 41X0753) were added to the Control panel parts catalogs.

• FRUs were deleted on the Control panel parts catalog. – 40X9104 (Control panel keypad assembly (MX31x)) – 40X9113 (Control panel lens) – 40X9111 (2.4" LCD) – 40X9112 (UICC (MX31x)) – 40X7116 (4.3" LCD (touch-screen)) – 40X9105 (Control panel keypad assembly (MX41x, MX51x, XM1140, and XM1145) – 40X9064 (Light tube) – 40X9114 (UICC (MX41x, MX51x, XM1140, and XM1145)

May 13, 2015

• Updated “200 paper jam messages” on page 98 to add error codes speciﬁc to polygon laser scanning

unit (LSU).

• Updated “111 error messages” on page 150 to add error messages speciﬁc to polygon LSU. Added notes

to identify the type of LSU (polygon or galvo) and controller board the printer supports.

• Updated “Laser scanning unit (LSU) service check” on page 152 to include other ways to resolve LSU-

related issues. Added notes to identify the type of LSU (polygon or galvo) and controller board the printer supports.

• Updated “Laser scanning unit (LSU) removal” on page 379 to add information on how to identify the type

of LSU (polygon or galvo) and controller board the printer supports.

• Updated the “Electronics 1” topic to specify whether the LSU that the printer supports is a polygon or galvo.

Added in the table these two FRUs: Polygon LSU frame (PN 41X0363) and Polygon LSU cable (41X0759).

April 23, 2015

• Updated the 97y error code table and created “Network port error service check” on page 175 for the

97y error codes.

• Updated the 98y error code table and created “Option communication error service check” on page 176

for the 98y error codes.

• Updated the 99y error code table and created “Option communication error service check” on page 176

for the 99y error codes.

April 6, 2015

• 40X8303 FRU was renamed to ‘250-sheet tray insert (MX31x, MX41x, and XM1140—standard tray only)’

• 40X8261 FRU was renamed to ‘ACM assembly (MX51x and XM1145—standard tray only)’

• 40X8260 FRU was renamed to ‘ACM assembly (MX31x, MX41x, and XM1140—standard tray only)’

• 40X8262 FRU was renamed to ‘ACM assembly (option tray only)’

• 40X8305 FRU was added as ‘250-sheet tray insert (MX31x, MX41x, and XM1140—option tray only)’

February 6, 2015

• Part number 41X0259 (Narrow media sensor) was added to the parts catalog.

Change history

November 10, 2014

• Updated the ACM clutch removal procedure.

October 10, 2014

• Updated the illustration of Electronics 2 parts catalog assembly to show the correct toner cartridge smart

chip contact.

September 22, 2014

• Part number 40X8274 was replaced with 40X9181.

• Fax card (40X7855) was added in the parts catalog.

September 8, 2014

• Changed part number 40X8296 to 41X0547.

August 15, 2014

Updated the following service checks:

• Toner cartridge smart chip contact service check

• Cartridge gearbox service check

• LSU service check

• Tray 1 jam service check

7015

August 7, 2014

• Scanner carriage failure service check was added to address the 843.00 error.

July 2, 2014

• Art revised for Frame parts catalog: spring (40X8295) and cable (40X8083) are no longer included.

June 11, 2014

• Parts catalog—Added Latin America power supply part number 41X0003.

May 23, 2014

• Added part number 40X0289 to the power cords parts catalog assembly.

April 16, 2014

• Art revised for Electronics 1 parts catalog. Actuator was removed for 40X8050 FRU.

• Descriptions for A4 and Legal support were added to FRUs (40X9055, 40X9056, 40X5804, and 40X9109)

in the Imaging parts catalog.

• Note for updating the scanner ﬁrmware was added to the ADF paper jam service check.

March 24, 2014

• The EVERY 400K column was removed from the Inspection guide table.

• Model descriptions for part numbers 40X8303 and 40X8305 were added.

Change history

February 28, 2014

• Added the Restoring solutions, licenses, and conﬁguration settings topic under Removal precautions.

• Updated the Restoring the printer conﬁguration after replacing the controller board topic.

• Changed the title from eSF backup to Backing up eSF solutions and settings, and updated the topic.

• Updated the Controller board removal topic.

• Editorial changes

January 17, 2014

• Restore factory defaults topics were added to the service menus.

• Updating the printer ﬁrmware topics were added to the repair information.

November 28, 2013

• Part number 40X8850 (Redrive shaft) was added to the parts catalog.

• Redrive shaft removal was added to the repair information.

• Part numbers for controller boards were replaced: – 40X9065 (Controller board (MX31x) to 40X9251 – 40X9066 (Controller board (MX31x) to 40X9252 – 40X9067 (Controller board (MX31x) to 40X9253

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October 22, 2013

• Part number 40X9146 (Maintenance kit, 220 V) was replaced with 40X9136.

• Part number 40X9654 (550‑‑sheet tray, lockable) was added.

August 20, 2013

• Fax card (40X7854) was included in the parts catalog.

August 13, 2013

• Topic for restoring the printer conﬁguration after replacing the controller board was added.

• Additional procedure added for the installation note for the controller board removal topic.

• The following Diagnostic information topics were added: – [x] page jam, clear standard bin. [20y.xx] – 201 paper jam messages – Sensor (narrow media) jam service check

July 22, 2013

• Parts catalog FRU descriptions were revised to include model information: – 40X9055—Flatbed (MX51x and XM1145) – 40X9056—Flatbed (MX31x, MX41x, and XM1140)

July 11, 2013

• Parts catalog FRUs were added: – 40X8698—Relocation kit (MX310 and MX410) – 40X8699—Relocation kit (MX510)

Change history

July 1, 2013

• FRU description changed—40X8297, Pick tire (MX51x and XM1145)

• FRU added—40X8296, Pick tire (MX31x, MX41x and XM1140)

June 19, 2013

• Changes were made to the ADF paper jam service check.

• Part number 40X8093 (Transfer roll) was changed to 40X8393.

• BSD model information was added to the FRU tables on the parts catalog.

• Some information from the error code tables were made into new service checks. The following are the

new service check topics added:

– ADF rattling noise service check – Imaging unit low service check – Toner cartridge low service check – Bin full service check – Toner smart chip compatibility service check – Imaging chip compatibility service check – Flash full service check – Maintenance kit service check – NVRAM cyclic redundancy service check – Invalid

ﬁrmware/controller

– RAM memory error service check – Scanner conﬁguration error service check – Blank spaces on incoming fax service check – Stretched words on incoming fax service check – Download emulation cyclic redundancy service check

board service check

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April 24, 2013

• For the Imaging parts catalog assembly, the descriptions for the following part numbers were revised:

40X9142, 40X9143, 40X9144, 40X9093, 40X9059, 40X9057

April 4, 2013

• Updated the ACM assembly removal procedure.

• Added Media sensor ﬂag removal procedure.

• Updated the Sensor (input) early/late arriving service check to include checking of the media present sensor

ﬂag.

• Added media present sensor ﬂag part number 40X8800 to the Electronics 2 parts catalog assembly.

February 4, 2013

• 10.xx and 24x.08 errors were added to the User attendance messages table.

• 24x.08 errors were added to the 24x paper jams and Input option jam error messages tables.

• New topic for updating the ﬁrmware was added to the Service menus chapter.

• BSD machines were added to the list of models under the General information chapter.

Change history

7015

General information

The LexmarkTM MX310dn, MX410, and MX510 (7015‑xxx) are network‑capable, multi‑function laser printers that print monochrome print jobs. All information in this service manual pertains to all models unless explicitly noted.

The printers are available in the following models:

Model Conﬁgurations Machine type/model

MX310dn and MX317dn

XM1135 7015‑279

MX410de and MX417de

XM1140 7015‑479

MX510de Mono laser MFP, Networking/No fax, Duplex print/scan,

MX511de Mono laser MFP, Networking/Fax, Duplex print/scan,

MX517de

XM1145 7015‑679

MX511dhe Mono laser MFP, Networking/Fax, Duplex print/scan,

The diagnostic information in this manual leads you to the correct ﬁeld replaceable unit (FRU) or part. Use the error code charts, symptom index, and service checks to determine the symptom, and then repair the failure. After you complete the repair, perform tests as needed to verify the repair.

To begin diagnosing a problem, go to

on page 255 for information about removing and reinstalling parts. See “Parts catalog” on page 424 to help

identify parts.

Mono laser MFP, Networking/Fax, Duplex print, Simplex scan

Mono laser MFP, Networking/Fax, Duplex print/scan,

4.3‑inch color touch screen

e‑Task 4.3‑inch color touch screen

e‑Task 4.3‑inch color touch screen, Hard drive

“Diagnostics and troubleshooting” on page 43. See “Parts removal”

7015‑270

7015‑470

7015‑630

7015‑670

7015‑675

Media guidelines

Additional information for printing on specialty media may be found in the Cardstock and Label Guide available at

http://support.lexmark.com.

Paper guidelines

Selecting the correct paper or specialty media reduces printing problems. For the best print quality, try a sample of the paper or specialty media before buying large quantities.

Paper characteristics

The following paper characteristics aect print quality and reliability. Consider these characteristics when evaluating new paper stock.

General information

Weight

The printer trays can automatically feed paper weights up to 120‑g/m2 (32‑lb) bond grain long paper. The multipurpose feeder can automatically feed paper weights up to 163‑g/m

lighter than 60 g/m

75‑g/m

(20‑lb) bond grain long paper. For paper smaller than 182 x 257 mm (7.2 x 10.1 inches), we recommended

to use 90 g/m

(16 lb) might not be sti enough to feed properly, causing jams. For best performance, use

(24 lb) or heavier paper.

(43‑lb) bond grain long paper. Paper

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Note: Two‑sided printing is supported only for 60–90‑g/m

(16–24‑lb) bond paper.

Curl

Curl is the tendency for paper to curl at its edges. Excessive curl can cause paper feeding problems. Curl can occur after the paper passes through the printer, where it is exposed to high temperatures. Storing paper unwrapped in hot, humid, cold, or dry conditions, even in the trays, can contribute to paper curling prior to printing and can cause feeding problems.

Smoothness

Paper smoothness directly aects print quality. If paper is too rough, then toner cannot fuse to it properly. If paper is too smooth, then it can cause paper feeding or print quality issues. Always use paper between 100 and 300 Sheeld points; however, smoothness between 150 and 250 Sheeld points produces the best print quality.

Moisture content

The amount of moisture in paper aects both print quality and the ability of the printer to feed the paper correctly. Leave paper in its original wrapper until it is time to use it. This limits the exposure of paper to moisture changes that can degrade its performance.

Store paper in its original wrapper in the same environment as the printer for 24 to 48 hours before printing. Extend the time to several days if the storage or transportation environment is very dierent from the printer environment. Thick paper may also require a longer conditioning period.

Grain direction

Grain refers to the alignment of the paper ﬁbers in a sheet of paper. Grain is either grain long, running the length of the paper, or grain short, running the width of the paper.

For 60–90‑g/m

(16–24‑lb) bond paper, grain long paper is recommended.

Fiber content

Most high‑quality xerographic paper is made from 100% chemically treated pulped wood. This content provides the paper with a high degree of stability resulting in fewer paper feeding problems and better print quality. Paper containing ﬁbers such as cotton can negatively aect paper handling.

Unacceptable paper

The following paper types are not recommended for use with the printer:

• Chemically‑treated papers used to make copies without carbon paper, also known as carbonless papers,

carbonless copy paper (CCP), or no carbon required (NCR) paper

• Preprinted papers with chemicals that may contaminate the printer

• Preprinted papers that can be aected by the temperature in the printer fuser

General information

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• Preprinted papers that require a registration (the precise print location on the page) greater than ±2.4 mm

(±0.9 inch), such as optical character recognition (OCR) forms In some cases, registration can be adjusted with a software application to successfully print on these forms:

• Coated papers (erasable bond), synthetic papers, thermal papers

• Rough‑edged, rough or heavily textured surface papers, or curled papers

• Recycled papers that fail EN12281:2002 (European)

• Paper weighing less than 60 g/m

(16 lb)

• Multiple‑part forms or documents

Selecting paper

Using the appropriate paper prevents jams and helps ensure trouble‑free printing.

To help avoid paper jams and poor print quality:

• Always use new, undamaged paper.

• Before loading paper, know the recommended printable side of the paper. This information is usually

indicated on the paper package.

• Do not use paper that has been cut or trimmed by hand.

• Do not mix paper sizes, types, or weights in the same tray; mixing results in jams.

• Do not use coated papers unless they are speciﬁcally designed for electrophotographic printing.

Selecting preprinted forms and letterhead

Use these guidelines when selecting preprinted forms and letterhead:

• Use grain long for 60 to 90 g/m

• Use only forms and letterhead printed using an

(16 to 24 lb) weight paper.

lithographic or engraved printing process.

oset

• Avoid papers with rough or heavily textured surfaces.

Use papers printed with heat‑resistant inks designed for use in xerographic copiers. The ink must be able to withstand temperatures up to 230°C (446°F) without melting or releasing hazardous emissions. Use inks that are not aected by the resin in toner. Inks that are oxidation‑set or oil‑based generally meet these requirements; latex inks might not. When in doubt, contact the paper supplier.

Preprinted papers such as letterhead must be able to withstand temperatures up to 230°C (446°F) without melting or releasing hazardous emissions.

Storing paper

Use these paper storage guidelines to help avoid jams and uneven print quality:

• For best results, store paper where the temperature is 21°C (70°F) and the relative humidity is 40 percent.

Most label manufacturers recommend printing in a temperature range of 18–24°C (65–75°F) with relative humidity between 40 and 60 percent.

• Store paper in cartons, on a pallet or shelf, rather than on the ﬂoor.

• Store individual packages on a ﬂat surface.

• Do not store anything on top of individual paper packages.

• Take paper out of the carton or wrapper only when you are ready to load it in the printer. The carton and

wrapper help keep the paper clean, dry, and ﬂat.

General information

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Using recycled paper and other oce papers

As an environmentally conscious company, Lexmark supports the use of recycled oce paper produced speciﬁcally for use in laser (electrophotographic) printers. In 1998, Lexmark presented to the US government a study demonstrating that recycled paper produced by major mills in the US fed as well as non-recycled paper. However, no blanket statement can be made that all recycled paper will feed well.

Lexmark consistently tests its printers with recycled paper (20–100% post-consumer waste) and a variety of test paper from around the world, using chamber tests for dierent temperature and humidity conditions. Lexmark has found no reason to discourage the use of today's recycled oce papers, but generally the following property guidelines apply to recycled paper.

• Low moisture content (4–5%)

• Suitable smoothness (100–200

Note: Some much smoother papers (such as premium 24 lb laser papers, 50–90 Sheeld units) and much rougher papers (such as premium cotton papers, 200–300 to work very well in laser printers, despite surface texture. Before using these types of paper, consult your paper supplier.

Sheeld

• Suitable sheet-to-sheet coecient of friction (0.4–0.6)

• Sucient bending resistance in the direction of feed

Recycled paper, paper of lower weight (<60 g/m paper that is cut grain-short for portrait (or short-edge) fed printers may have lower bending resistance than is required for reliable paper feeding. Before using these types of paper for laser (electrophotographic) printing, consult your paper supplier. Remember that these are general guidelines only and that paper meeting these guidelines may still cause paper feeding problems in any laser printer (for example, if the paper curls excessively under normal printing conditions).

units, or 140–350 Bendtsen units, European)

Sheeld

[16 lb bond]) and/or lower caliper (<3.8 mils [0.1 mm]), and

units) have been engineered

Using specialty media

Tips on using card stock

Card stock is heavy, single‑ply specialty media. Many of its variable characteristics, such as moisture content, thickness, and texture, can signiﬁcantly impact print quality. Print samples on the card stock being considered for use before buying large quantities.

• From the Paper menu, set the Paper Type to Card Stock.

• Select the appropriate Paper Texture setting.

• Be aware that preprinting, perforation, and creasing may signiﬁcantly aect the print quality and cause jams

or other paper handling problems.

• Check with the manufacturer or vendor to ensure the card stock can withstand temperatures up to 220°C

(446°F) without releasing hazardous emissions.

• Do not use preprinted card stock manufactured with chemicals that may contaminate the printer. Preprinting

introduces semi‑liquid and volatile components into the printer.

• Use grain short card stock when possible.

General information

Tips on using envelopes

Print samples on the envelopes being considered for use before buying large quantities.

• Use envelopes designed

that the envelopes can withstand temperatures up to 220°C (446°F) without sealing, wrinkling, curling excessively, or releasing hazardous emissions.

speciﬁcally

• For best performance, use envelopes made from 90 g/m

envelopes must not exceed 70 g/m

• Use only new envelopes from undamaged packages.

• To optimize performance and minimize jams, do not use envelopes that: – Have excessive curl or twist – Are stuck together or damaged in any way – Have windows, holes, perforations, cutouts, or embossing – Have metal clasps, string ties, or folding bars – Have an interlocking design – Have postage stamps attached – Have any exposed adhesive when the ﬂap is in the sealed or closed position – Have bent corners – Have rough, cockle, or laid ﬁnishes

• Adjust the width guides to ﬁt the width of the envelopes.

for laser/LED printers. Check with the manufacturer or vendor to ensure

(24 lb bond) paper or 25% cotton. All‑cotton

(20 lb bond) weight.

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Note: A combination of high humidity (over 60%) and the high printing temperature may wrinkle or seal

envelopes.

Tips on using labels

Print samples on the labels being considered for use before buying large quantities.

Note: Use only paper label sheets. Vinyl, pharmacy, and two‑sided labels are not supported.

For more information on label printing, characteristics, and design, see the Card Stock & Label Guide available at

http://support.lexmark.com.

When printing on labels:

• Use labels designed speciﬁcally for laser printers. Check with the manufacturer or vendor to verify that: – The labels can withstand temperatures up to 230°C (446°F) without sealing, excessive curling, wrinkling,

or releasing hazardous emissions.

– Label adhesives, face sheet (printable stock), and topcoats can withstand up to 25‑psi (172‑kPa) pressure

without delaminating, oozing around the edges, or releasing hazardous fumes.

• Do not use labels with slick backing material.

• Use full label sheets. Partial sheets may cause labels to peel o during printing, resulting in a jam. Partial

sheets also contaminate the printer and the cartridge with adhesive, and could void the printer and toner cartridge warranties.

• Do not use labels with exposed adhesive.

• Do not print within 1 mm (0.04 inches) of the edge of the label, of the perforations, or between die‑cuts of

the label.

General information

7015

• Make sure the adhesive backing does not reach to the edge of the sheet. Zone coating of the adhesive

should be at least 1 mm (0.04 inches) away from edges. Adhesive material contaminates the printer and could void the warranty.

• If zone coating of the adhesive is not possible, then remove a 2‑mm (0.06‑inches) strip on the leading and

driver edge, and use a non‑oozing adhesive.

• Portrait orientation is recommended, especially when printing bar codes.

Tips on using letterhead

• Use letterhead designed speciﬁcally for laser printers.

• Print samples on the letterhead being considered for use before buying large quantities.

• Before loading letterhead, ﬂex, fan, and straighten the stack to prevent sheets from sticking together.

• Page orientation is important when printing on letterhead.

Tips on using transparencies

• Print a test page on the transparencies being considered for use before buying large quantities.

• Feed transparencies from the standard tray, or the multipurpose feeder.

• Use transparencies designed speciﬁcally for laser printers. Transparencies must be able to withstand

temperatures up to 185°C (365°F) without melting, discoloring, osetting, or releasing hazardous emissions.

Note: If the transparency weight is set to Heavy and the transparency texture is set to Rough in the Paper menu, then transparencies can be printed at a temperature up to 195°C (383°F).

• Avoid getting ﬁngerprints on the transparencies to prevent print quality problems.

• Before loading transparencies, ﬂex, fan, and straighten the stack to prevent sheets from sticking together.

Supported paper sizes, types, and weights

Supported paper sizes

Paper size and dimension

Business card X X X X

3 x 5 in. X X

4 x 6 in. X X

210 x 297 mm (8.27 x 11.7 in.)

Standard 250‑sheet tray

Optional 250‑ or 550‑sheet tray

Multipurpose feeder

ADF Scanner

glass

X X

Duplex mode

148 x 210 mm (5.83 x

8.27 in.)

Universal is supported in duplex mode only if the width is at least 210 mm (8.27 in.) and the length is at least 279.4

mm (11 in.). The smallest supported Universal size is supported only in the multipurpose feeder.

General information

7015

Paper size and dimension

105 x 148 mm (4.13 x 5.83 in.)

JIS B5

182 x 257 mm (7.17 x 10.1 in.)

Letter

215.9 x 279.4 mm (8.5 x 11 in.)

Legal

215.9 x 355.6 mm (8.5 x 14 in.)

Executive

184.2 x 266.7 mm (7.25 x

10.5 in.)

Oﬁcio (México)

215.9 x 340.4 mm (8.5 x

13.4 in.)

Standard 250‑sheet tray

Optional 250‑ or 550‑sheet tray

X X

Multipurpose feeder

ADF Scanner

glass

Duplex mode

Folio

215.9 x 330.2 mm (8.5 x 13 in.)

Statement

139.7 x 215.9 mm (5.5 x

8.5 in.)

Universal

76.2 x 127 mm (3 x 5 in.) to 215.9 x 359.92 mm (8.5 x 14.17 in.)

7 3/4 Envelope

XX X

(Monarch)

98.4 x 190.5 mm (3.875 x

7.5 in . )

9 Envelope

XX X

98.4 x 226.1 mm (3.875 x

8.9 in.)

10 Envelope

XX X

104.8 x 241.3 mm (4.12 x

9.5 in.)

Universal is supported in duplex mode only if the width is at least 210 mm (8.27 in.) and the length is at least 279.4

mm (11 in.). The smallest supported Universal size is supported only in the multipurpose feeder.

General information

7015

Paper size and dimension

Standard 250‑sheet tray

Optional 250‑ or 550‑sheet

Multipurpose feeder

ADF Scanner

glass

Duplex mode

tray

DL Envelope

XX X

110 x 220 mm (4.33 x

8.66 in.)

C5 Envelope

XX X

162 x 229 mm (6.38 x

9.01 in.)

B5 Envelope

XX X

176 x 250 mm (6.93 x

9.84 in.)

Other Envelope

XX X

85.7 x 165 mm to 215.9 x

355.6 mm (3.375 x 6.50 in. to 8.5 x 14 in.)

Universal is supported in duplex mode only if the width is at least 210 mm (8.27 in.) and the length is at least 279.4

mm (11 in.). The smallest supported Universal size is supported only in the multipurpose feeder.

Supported paper types and weights

The standard tray supports 60–90‑g/m2 (16–24‑lb) paper weights. The optional tray supports 60–120‑g/m2 (16– 32‑lb) paper weights. The multipurpose feeder supports 60–163‑g/m

Paper type 250‑ or

Multipurpose feeder Duplex mode ADF Scanner glass

(16–43‑lb) paper weights.

550‑sheet tray

Plain paper

Card stock X X

Transparencies X

Recycled

Paper labels

Bond

Envelope

X XX

Rough envelope X XX

Letterhead

Preprinted

One‑sided paper labels designed for laser printers are supported for occasional use. We recommend printing only

up to 20 pages of paper labels per month. Vinyl, pharmacy, and two‑sided labels are not supported.

Use envelopes that lie ﬂat when individually placed on a table facedown.

General information

7015

Paper type 250‑ or

550‑sheet tray

Colored paper

Light paper

Heavy paper

Rough/Cotton X

Custom Type [x]

One‑sided paper labels designed for laser printers are supported for occasional use. We recommend printing only

up to 20 pages of paper labels per month. Vinyl, pharmacy, and two‑sided labels are not supported.

Use envelopes that lie ﬂat when individually placed on a table facedown.

Multipurpose feeder Duplex mode ADF Scanner glass

Data security notice

1 The printer contains various types of memory that store printer and network settings, information from

embedded solutions, and user data.

The following are the types of memory and data that they store.

• Volatile memory—The printer uses standard random access memory (RAM) to buer user data

temporarily during simple print and copy jobs.

• Non-volatile memory—The printer may use two forms of non-volatile memory: EEPROM and NAND

(ﬂash memory). Both types are used to store the operating system, printer settings, network information, scanner and bookmark settings, and embedded solutions.

• Hard disk memory—The printer hard disk is designed for printer-speciﬁc functionality and cannot be

used for the long‑term storage of data that is not print-related. The hard disk can retain buered user

data from complex print jobs, form data, and font data. To erase volatile memory, turn o the printer. To erase the non-volatile and printer hard disk memory, see

“Conﬁguration menu” on page 240.

The following parts are capable of storing memory:

• Printer control panel

• User interface controller card (UICC)

• Controller board

• Optional hard disk

Note: The control panel and controller board contain NVRAM.

2 After removing the old part, return it to your next level of support.

Tools required for service

• Flat-blade screwdrivers, various sizes

• #1 Phillips screwdriver, magnetic

General information

• #2 Phillips screwdriver, magnetic

• #2 Phillips screwdriver, magnetic short-blade

• Needle‑nose pliers

• Diagonal side cutters

• Spring hook

• Feeler gauges

• Analog or digital multimeter

• Flashlight (optional)

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General information

Diagnostics and troubleshooting

CAUTION—SHOCK HAZARD: Remove the power cord from the electrical outlet before you connect or

disconnect any cable or electronic card or assembly for personal safety and to prevent damage to the printer. Disconnect any connections between the printer and PCs/peripherals.

CAUTION—POTENTIAL INJURY: The printer weight is greater than 18kg (40 lb) and requires two or more trained personnel to lift it safely. Use the hand holds on the side of the printer. Make sure your ﬁngers are not under the printer when you lift or set the printer on the ﬂoor or another stable surface.

CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a hot component, allow the surface to cool before touching it.

Troubleshooting overview

Performing the initial troubleshooting check

Before you start the troubleshooting procedures, perform the following checks:

7015

• Use genuine Lexmark supplies and parts for the best results. Third-party supplies or parts may aect the

performance, reliability, or life of the printer and its imaging components.

• With the power cord unplugged from the electrical outlet, check that the cord is free from the breakage,

short circuits, disconnected wires, or incorrect connections.

• Make sure the printer is properly grounded. Check the power cord ground terminal.

• Make sure the power supply line voltage is within 10% of the rated line voltage.

• Make sure the machine is securely installed on a level surface in a well‑ventilated area.

• Make sure the room temperature is between 16 and 32°C (60 and 90°F) and that the relative humidity is

between 8 and 80%.

• Avoid sites generating ammonia gas, high temperature, high humidity (near water faucets, kettles,

humidiﬁers), cold spaces, near open ﬂames, and dusty areas.

• Avoid sites exposed to direct sunlight.

• Make sure the paper is the recommended paper for this printer.

• Make a trial print with paper from a newly opened package, and check the result.

Diagnostics and troubleshooting

Power‑on Reset (POR) sequence

When you turn on the printer, it performs a POR sequence.

Check for correct POR functioning of the base printer by observing the following:

1 The control panel indicator light turns on.

2 The control panel display turns on.

3 A splash screen appears on the display. 4 The cooling fan turns on. 5 The fuser heater turns on.

Note: The fuser takes longer to warm up from a cold start than from a warm start.

6 The main drive motor turns on.

7 The EP drive assembly drives the developer shaft located in the imaging unit. 8 The exit rollers turn. 9 The control panel indicator light blinks.

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10 Ready appears on the display.

Using Safe Mode

Safe Mode lets the printer continue to operate in a special limited mode in which it attempts to continue oering as much functionality as possible despite known issues.

Warning—Potential Damage: Safe Mode is intended as a short‑term workaround and should be used only in the case of a non‑critical error when a print job must be completed before service can be arranged to repair the printer. The printer must be returned to standard operating mode before diagnostics can be run or full‑function printing can continue.

You can enter Safe Mode in one of the following ways:

• Enable Safe Mode from the Conﬁguration menu, and then POR the printer.

• Press the Stop and Back keys, and then POR the printer.

Return the printer to standard operating mode to service the printer and return to full‑function printing.

Safe mode print behavior

The following table outlines the behavior for this printer model while in Safe Mode:

Safe Mode engine features Engine behavior Control panel behavior

Simplex printing only Will report that no duplexer is installed. Duplex print option will not be

Ignore duplex sensor

Ignore bin full sensor Bin full messages will not be reported. Bin full messages will not occur.

Print at narrow media operating

point

Pages will be printed slower. N/A

Diagnostics and troubleshooting

selectable.

Safe Mode engine features Engine behavior Control panel behavior

7015

Ignore narrow media sensor Narrow media will print without

restrictions.

Ignore all input options Will report that only Tray 1 is installed. Only Tray 1 and the MPF will be

Ignore all output options Will not report any installed ﬁnishing

options.

Use large interpage gaps Pages will have large interpage gaps. N/A

N/A

selectable.

Finishing options will not be selectable.

Fixing print quality issues

• “Initial print quality check” on page 46

• “Gray background or toner fog check” on page 46

• “Blank pages check” on page 49

• “Print is too dark check” on page 55

• “Print is too light check” on page 57

• “Paper curl check” on page 59

• “Folded or wrinkled paper check” on page 61

• “Solid black pages check” on page 62

• “Repeating defects check” on page 65

• “Skewed print check” on page 66

• “Streaked vertical lines appear on prints check” on page 68

• “Horizontal light bands check” on page 69

• “Vertical light bands check” on page 71

• “Vertical dark bands check” on page 72

• “Vertical dark streaks with print missing check” on page 73

• “White streaks and voided areas check” on page 75

• “Fine lines are not printed correctly (speciﬁcally Chinese characters) check” on page 78

• “Clipped pages or images check” on page 79

• “Compressed images appear on prints check” on page 81

• “Incorrect margins on prints check” on page 82

• “Toner rubs o check” on page 83

• “Toner specks appear on prints check” on page 84

Diagnostics and troubleshooting

7015

The symptoms described in this chapter might require replacement of one or more CRUs (Customer Replaceable Units) designated as supplies or maintenance items, which are the responsibility of the customer. With the customer's permission, you might need to install a toner cartridge.

Initial print quality check

Before troubleshooting speciﬁc print problems, complete the following initial print quality check:

• Use only genuine Lexmark supplies. Third-party supplies may cause print quality problems.

• The printer must be in a location that follows the recommended operating environment speciﬁcations.

See

“Operating environment” on page 464.

• Check the life status of all supplies. Any supply that is low should be replaced.

• Load 20‑lb plain letter or A4 paper. Make sure the paper guides are properly set and locked. From the

control panel, set the paper size and type to match the paper loaded in the tray.

• Print a menu settings page. Be sure to keep the original menu settings page to restore the customer’s

custom settings if needed.

• Verify on the menu settings page if the following are set to their default values:

– Print resolution: 600 dpi – Toner darkness: 8

• Check the transfer roll for damage. Replace if damaged.

• Check the toner cartridge and imaging unit for damage. Replace if damaged.

• Print the print quality pages to see if the problem remains. Use Tray 1 to test print quality problems.

• Print a print quality test page, and then look for variations in the print from what is expected. Verify if the

settings under EP Setup are set to their default values. See

“EP Defaults” on page 232.

• Check to ensure the correct printer driver for the installed software is being used. An incorrect printer

driver for the installed software can cause problems. Incorrect characters could print, and the copy may not ﬁt the page correctly.

Gray background or toner fog check

Diagnostics and troubleshooting

Actions Yes No

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Step 1

a Turn o the printer, wait for 10 seconds, and then turn on the

printer.

b From the control panel:

1 Increase the toner darkness in the Quality menu.

Note: 8 is the factory default setting.

2 Set the paper type, texture, and weight in the Paper menu

to match the paper loaded.

Does the problem remain?

Step 2

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 3

Install a genuine and supported toner cartridge.

Does the problem remain?

Go to step 2. The problem is

solved.

Go to step 4. Go to step 3.

Go to step 4. The problem is

solved.

Diagnostics and troubleshooting

Actions Yes No

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Step 4

a Remove any packing material left on the imaging unit, including

the red separator plastic (A).

Note: You may need a pair of pliers to remove a piece of broken plastic inside the imaging unit.

b Check the charge roller contact (B) on the right side of the

imaging unit for damage and contamination.

Go to step 5. Go to step 6.

Is the charge roller contact damaged and contaminated?

Step 5

Repair or replace the charge roller contact on the imaging unit.

Does the problem remain?

Step 6

Replace the imaging unit.

Does the problem remain?

Step 7

Make sure that connection JPS1 on the controller board and the connections on the power supply are properly connected.

Are the connections properly connected?

Diagnostics and troubleshooting

Go to step 6. The problem is

solved.

Go to step 7. The problem is

solved.

Go to step 9. Go to step 8.

Actions Yes No

7015

Step 8

Reseat the connections.

Does the problem remain?

Step 9 Note: Poor electrical contact to the photoconductor is the most

likely source of a full page background defect.

a Remove any contamination from the photoconductor charge

contact (C) on the right side of the frame.

b Perform a print test.

Go to step 9. The problem is

solved.

Go to step 10. The problem is

solved.

Does the problem remain?

Step 10

Check if the photoconductor charge contact is bent, damaged, or not in proper contact with the imaging unit.

Is the contact free from damage and in proper contact with the imaging unit?

Step 11

Replace the power supply. See

page 339.

Does the problem remain?

“Power supply removal” on

Blank pages check

Go to step 11. Contact the next

level of support.

Contact the next level of support.

The problem is solved.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

a Check and remove any packing material left on the imaging

unit.

b Firmly shake the imaging unit to redistribute the toner, and then

reinstall it.

Does the problem remain?

Step 4

Check the imaging unit for damage and proper installation, and replace if necessary.

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Go to step 5. The problem is

solved.

Does the problem remain?

Diagnostics and troubleshooting

Actions Yes No

7015

Step 5

Check the coupler to make sure that it is not stuck in the retracted position. While slowly closing the door, observe the coupler to see if it moves inward.

Note: With the imaging unit removed, the coupler should retract with the door open and move inward when the front door is closed.

Go to step 6. Go to step 7.

Is the coupler stuck, and not moving inward, while closing the front door?

Diagnostics and troubleshooting

Actions Yes No

7015

Step 6

Reach inside the printer and manually reposition the coupler in the direction of the red arrow as shown.

Does the problem remain?

Step 7

Check if the imaging unit contact (A) is bent, damaged, or not in proper contact with the imaging unit.

Go to step 7. The problem is

solved.

Go to step 8. Contact the next

level of support.

Are the contacts free from damage, not bent and in proper contact with the imaging unit?

Step 8

Check all connections in the power supply. If necessary, replace the power supply.

Does the problem remain?

Step 9

Reseat cable JPS1 on the controller board.

Does the problem remain?

Diagnostics and troubleshooting

Go to step 9. The problem is

solved.

Go to step 10. The problem is

solved.

Actions Yes No

7015

Step 10

Replace the cable.

Does the problem remain?

Step 11

a Check the transfer roller for proper installation. If necessary,

remove and then reinstall the transfer roller.

b Check the transfer roller for contamination and damage.

Is the transfer roller free of contamination and damage?

Step 12

Replace the transfer roller. See

page 309.

Does the problem remain?

Step 13

Check the transfer roller left contact spring on the transfer roller left arm for damage.

Is the contact spring free of damage?

“Transfer roll removal” on

Go to step 11. The problem is

solved.

Go to step 13. Go to step 12.

Go to step 13. The problem is

solved.

Go to step 15. Go to step 14.

Step 14

Replace the transfer roller left arm with cable.

Does the problem remain?

Go to step 15. The problem is

solved.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 15

a Check the coupler for signs of damage. The coupler is located

on the main drive motor.

• Good condition

• Bad condition

Go to step 16. The problem is

solved.

b If the coupler is damaged, then replace the main drive motor.

Does the problem remain?

Step 16

Depending on the printer model, reseat the following cables on the controller board:

• JVIDEO and JGLV1 (MS31x, MS41x, MS51x, and MS61x)

• J6 and JLSU1 (MS610de and MX61xde)

• JMM1 and JLSU1 (MX31x, MX41x, MX51x, and MX61x)

Does the problem remain?

Step 17

Replace the laser printhead. See

removal” on page 379.

Does the problem remain?

“Laser scanning unit (LSU)

Diagnostics and troubleshooting

Go to step 17. The problem is

solved.

Contact the next level of support.

The problem is solved.

Print is too dark check

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

a Turn o the printer, wait for 10 seconds, and then turn on the

printer.

b From the control panel, reduce the toner darkness in the

Quality menu. Note: 8 is the factory default setting.

Does the problem remain?

Step 4

From the control panel, set the paper type, texture, and weight in the Paper menu to match the paper loaded.

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Go to step 5. The problem is

solved.

Does the problem remain?

Step 5

Depending on the operating system, specify the paper type, texture, and weight from Printing Preferences or Print dialog.

Does the problem remain?

Step 6

a Check if the paper loaded has texture or rough ﬁnishes.

b From the control panel, set the paper texture in the Paper menu

to match the texture of the paper loaded.

Does the problem remain?

Diagnostics and troubleshooting

Go to step 6. The problem is

solved.

Go to step 7. The problem is

solved.

Actions Yes No

7015

Step 7

Make sure that the paper loaded is from a fresh package. Note: Paper absorbs moisture due to high humidity. Store paper

in its original wrapper until you use it.

Does the problem remain?

Step 8

Replace the imaging unit.

Does the problem remain?

Step 9

Check if the imaging unit contacts (A) are bent, damaged, or not in proper contact with the imaging unit.

Go to step 8. The problem is

solved.

Go to step 9. The problem is

solved.

Go to step 10. Contact the next

level of support.

Are the contacts free from damage, not bent and in proper contact with the imaging unit?

Step 10

Check all connections on the power supply for proper connection.

Is the power supply properly connected?

Step 11

Replace the connections.

Does the problem remain?

Step 12

Replace the power supply. See

page 339.

Does the problem remain?

“Power supply removal” on

Contact the next level of support.

Go to step 12. The problem is

Contact the next level of support.

Go to step 11.

solved.

The problem is solved.

Diagnostics and troubleshooting

Print is too light check

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

a Turn o the printer, wait for 10 seconds, and then turn on the

printer.

b From the control panel:

1 Increase the toner darkness in the Quality menu.

Note: 8 is the factory default setting.

2 Set the paper type, texture, and weight in the Paper menu

to match the paper loaded.

Does the problem remain?

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Step 4

a Remove the toner cartridge and imaging unit.

b Push either side of the transfer roller , located below the

imaging unit, to check if it depresses and bounces back into place.

c If the transfer roller does not depress and bounce back into

place, then reinstall it by pulling up the blue gear and pulling it out from the right side to the left.

d Firmly shake the imaging unit to redistribute the toner, and then

reinstall it.

e Reinstall the toner cartridge.

f Turn o the printer, wait for 10 seconds, and then turn on the

printer.

Does the problem remain?

Diagnostics and troubleshooting

Go to step 5. The problem is

solved.

Actions Yes No

7015

Step 5

Check the shutter on the imaging unit for signs of damage. Note: The shutter opens to receive toner from the toner

cartridge.

Is the shutter on the imaging unit working properly?

Step 6

a Check the status of the imaging unit.

1 From the home screen, select Status/supplies. 2 Select View Supplies.

b Check the condition of the imaging unit.

Is the imaging unit near end of life and/or showing signs toner leakage?

Step 7

Replace the imaging unit.

Does the problem remain?

Step 8

Replace the transfer roller. See

page 309.

“Transfer roll removal” on

Go to step 6. Go to step 7.

Go to step 7. Go to step 8.

Go to step 8. The problem is

solved.

Go to step 9. The problem is

solved.

Does the problem remain?

Step 9

Clean the printhead lens. See

page 423.

Note: This is applicable only to models installed with a galvo

LSU. To determine whether the LSU is galvo, check the serial number of the printer. The sixth digit character assigned should be in the 0–9 or B–N range (Example: 4514 20HH 007CR).

Does the problem remain?

Step 10

Replace the power supply. See

page 339.

Does the problem remain?

Step 11

Check the cartridge gearbox for damage.

Is the cartridge gearbox free from damage?

“Cleaning the printhead lenses” on

“Power supply removal” on

Go to step 10. The problem is

solved.

Go to step 11. The problem is

solved.

Go to step 13. Go to step 12.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 12

Replace the cartridge gearbox. See

on page 291.

Does the problem remain?

Step 13

Check connection JCART1 on the controller board and the connection on the cartridge gearbox.

Are the connections properly connected?

Step 14

Replace the connections.

Does the problem remain?

Step 15

Replace the cartridge gearbox. See “Cartridge gearbox removal”

on page 291.

Does the problem remain?

Step 16

Replace the controller board. See

page 299.

“Cartridge gearbox removal”

“Controller board removal” on

Go to step 13. The problem is

solved.

Go to step 15. Go to step 14.

Go to step 15. The problem is

solved.

Go to step 16. The problem is

solved.

Contact the next level of support.

The problem is solved.

Does the problem remain?

Paper curl check

Diagnostics and troubleshooting

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

Adjust the guides in the tray to the correct position for the paper loaded.

Does the problem remain?

Step 4

From the control panel, set the paper size, type, and weight in the Paper menu to match the paper loaded.

Does the problem remain?

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Go to step 5. The problem is

solved.

Step 5

Depending on the operating system, specify the paper size from Printing Preferences or Print dialog.

Does the problem remain?

Step 6

Remove paper from the tray, and then turn it over.

Does the problem remain?

Step 7

Make sure that the paper loaded is from a fresh package. Note: Paper absorbs moisture due to high humidity. Store paper

in its original wrapper until you use it.

Does the problem remain?

Step 8

Make sure that the printer supports the paper loaded.

Is the paper supported?

Go to step 6. The problem is

solved.

Go to step 7. The problem is

solved.

Go to step 8. The problem is

solved.

Contact the next level of support.

Go to step 9.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 9

Load a supported paper.

Does the problem remain?

Contact the next level of support.

Folded or wrinkled paper check

Actions Yes No

Step 1

a Check if the printer is using a non-Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then do not

replace the imaging unit. Refer the users to their cartridge supplier.

b Make sure that the toner cartridge is compatible with the

imaging unit.

Go to step 2. The problem is

The problem is solved.

solved.

Does the problem remain?

Step 2

a Check if the paper loaded is from a fresh package.

Note: The amount of moisture in paper aects both print

quality and printer ability to feed paper correctly.

b Make sure that the printer supports the paper loaded. For a

complete list of supported paper, see the printer User's Guide.

Does the problem remain?

Step 3

Make sure that the fuser entry guide is free of waste toner and dust. Warning—Potential Damage: Clean the fuser entry guide with a

toner vacuum and cloth. Do not use compressed air.

Does the problem remain?

Step 4

If the fuser has reached end of life, then replace the maintenance kit.

Does the problem remain?

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Contact the next level of support.

The problem is solved.

Diagnostics and troubleshooting

Solid black pages check

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 3

a Remove any packing material left on the imaging unit, including

the red separator plastic (A).

Note: You may need a pair of pliers to remove a piece of broken plastic inside the imaging unit.

b Check the charge roller contact (B) on the right side of the

imaging unit for damage and contamination.

Go to step 4. Go to step 5.

Is the charge roller contact damaged and contaminated?

Step 4

Repair or replace the charge roller contact on the imaging unit.

Does the problem remain?

Step 5

Replace the imaging unit.

Does the problem remain?

Diagnostics and troubleshooting

Go to step 5. The problem is

solved.

Go to step 6. The problem is

solved.

Actions Yes No

7015

Step 6

Check if the imaging unit contact (C) is contaminated, broken, or bent out of proper position.

Is the contact contaminated, broken, or bent out of proper position?

Step 7

Clean or repair the imaging unit contacts.

Does the problem remain?

Go to step 7. Go to step 8.

Contact the next level of support.

The problem is solved.

Step 8

Check the high voltage metal contacts on the imaging unit for damage. If necessary, replace the imaging unit.

Does the problem remain?

Step 9

Check cable JPS1 from the controller board to the power supply for proper connection.

Is the cable properly connected?

Step 10

Reseat the cable.

Does the problem remain?

Step 11

Replace the cable.

Does the problem remain?

Go to step 9. The problem is

solved.

Go to step 11. Go to step 10.

Go to step 11. The problem is

solved.

Contact the next level of support.

The problem is solved.

Diagnostics and troubleshooting

Repeating defects check

Actions Yes No

7015

Step 1

a From the control panel, navigate to:

Menu > Help > Print Defects Guide

b Using the Print Defects Guide, check if the distance between

the defects is equal to any of the following:

• 3.82 in. (97 mm)

• 1.85 in. (47 mm)

• 1.5 in. (38 mm)

Note: Make sure to measure the defect interval accurately.

Does the distance measured match any of the items listed?

Step 2

Replace the imaging unit.

Does the problem remain?

Step 3

Check if the distance between repeating defects is equal to 3.15 inches (85 mm).

Does the distance between repeating defects equal to 3.15 inches (85 mm)?

Go to step 2. Go to step 3.

Go to step 3. The problem is

solved.

Go to step 4. Contact the next

level of support.

Step 4

Replace the fuser. See

Does the problem remain?

Step 5

Replace the transfer roller. See

page 309.

Does the problem remain?

“Fuser removal” on page 375.

“Transfer roll removal” on

Diagnostics and troubleshooting

Go to step 5. The problem is

solved.

Contact the next level of support.

The problem is solved.

Skewed print check

Actions Yes No

7015

Step 1

Check the guides in the tray where the skewed prints are sourced from.

Note: If paper is sourced from the MPF, then proceed to

Does the position of the guides match the paper loaded?

Step 2

Adjust the guides to match the paper loaded.

Does the problem remain?

Step 3

Check if the printer supports the paper loaded. Note: For a complete list of supported paper, see the printer

User’s Guide.

Is the paper supported?

Step 4

Remove the paper, and then load a supported one.

Does the problem remain?

step 9.

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 5. Go to step 4.

Go to step 5. The problem is

solved.

Step 5

Check the tray pick roller for excess wear and contamination.

Is the pick roller free from excess wear and contamination?

Step 6

Replace the pick roller. See

Does the problem remain?

“Pick roller removal” on page 403.

Diagnostics and troubleshooting

Go to step 7. Go to step 6.

Go to step 7. The problem is

solved.

Actions Yes No

7015

Step 7

Perform a print test. From the Diagnostics menu, select PRINT TESTS > Tray [x].

Note: [x] refers to the tray where the skewed prints are sourced from.

Does the problem remain?

Step 8

Adjust the margins. From the Diagnostic menu, select REGISTRATION.

Does the problem remain?

Step 9

Check the guides in the MPF tray.

Does the position of the guides match the paper loaded?

Step 10

Adjust the guides to match the paper loaded.

Does the problem remain?

Go to step 8. The problem is

solved.

Go to step 15. The problem is

solved.

Go to step 11. Go to step 10.

Go to step 11. The problem is

solved.

Step 11

Check if the printer supports the paper loaded. Note: For a complete list of supported paper, see the printer

User’s Guide.

Is the paper supported?

Step 12

Remove the paper, and then load a supported one.

Does the problem remain?

Step 13

Check the MPF pick roller for excess wear and contamination.

Is the MPF pick roller free from excess wear and contamination?

Step 14

Replace the MPF pick roller. See

page 329.

Does the problem remain?

“MPF pick roller removal” on

Go to step 13. Go to step 12.

Go to step 13. The problem is

solved.

Go to step 15. Go to step 14.

Go to step 15. The problem is

solved.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 15

Perform the paper skew adjustment. See

adjustments” on page 276.

Does the problem remain?

“Printhead assembly

Contact the next level of support.

Streaked vertical lines appear on prints check

Note: This check applies only to printer models with a hot roll fuser.

Actions Yes No

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Go to step 3. Go to step 2.

The problem is solved.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

Using a blank piece of paper, make a two‑sided (duplexed) copy using the ADF.

Do vertical dark lines appear on the print exiting the printer?

Go to step 3. The problem is

solved.

Go to step 4. Go to step 5.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 4

Clean the ADF scanner glass (A). See

glass” on page 422.

Does the problem remain?

Step 5

Remove, and then reinstall the imaging unit.

Does the problem remain?

“Cleaning the scanner

Go to step 5. The problem is

solved.

Go to step 6. The problem is

solved.

Step 6

Replace the imaging unit.

Does the problem remain?

Step 7

Remove the hot roll fuser, and then check for scratches and other damage.

Is the fuser free of scratches and other damage?

Step 8

Replace the hot roll fuser.

Does the problem remain?

Horizontal light bands check

Go to step 7. The problem is

solved.

Contact the next level of support.

Go to step 8.

The problem is solved.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

Turn o the printer, wait for 10 seconds, and then turn on the printer.

Does the problem remain?

Step 4

Check the imaging unit contact block (A), including the white and red wires, for damage or improper installation.

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Go to step 5. Contact the next

level of support.

Is the imaging unit contact block free of damage and properly installed?

Step 5

Replace the power supply. See

page 339.

Does the problem remain?

“Power supply removal” on

Diagnostics and troubleshooting

Contact the next level of support.

The problem is solved.

Vertical light bands check

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

Clean the printhead lens. See

page 423.

Note: This is applicable only to models installed with a galvo

LSU. To determine whether the LSU is galvo, check the serial number of the printer. The sixth digit character assigned should be in the 0–9 or B–N range (Example: 4514 20HH 007CR).

Does the problem remain?

Step 4

Replace the printhead. See

on page 379.

“Cleaning the printhead lenses” on

“Laser scanning unit (LSU) removal”

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Go to step 5. The problem is

solved.

Does the problem remain?

Step 5

Replace the imaging unit.

Does the problem remain?

Contact the next level of support.

Diagnostics and troubleshooting

The problem is solved.

Vertical dark bands check

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

Remove, and then reinstall the toner cartridge and imaging unit.

Does the problem remain?

Step 4

If a bright light enters the right side of the printer, then move the printer to avoid the bright light.

Note: In cases where the printer cannot be moved or relocated, add a cover to the fan inlet vent to block the light from entering the printer, or contact the next level of support.

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Go to step 5. The problem is

solved.

Does the problem remain?

Diagnostics and troubleshooting

Actions Yes No

7015

Step 5

If a separator plastic (A) is stuck inside the imaging unit or if there are other obstructions between the charge roller and photoconductor drum, then remove them.

Does the problem remain?

Vertical dark streaks with print missing check

Contact the next level of support.

The problem is solved.

Actions Yes No

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 3

a Remove any packing material left on the imaging unit, including

the red separator plastic (A).

Note: You may need a pair of pliers to remove a piece of broken plastic inside the imaging unit.

b Check the charge roller contact (B) on the right side of the

imaging unit for damage and proper installation.

Go to step 4. Go to step 5.

Is the charge roller contact damaged and contaminated?

Step 4

Repair or replace the charge roller contact on the imaging unit.

Does the problem remain?

Step 5

Replace the imaging unit.

Does the problem remain?

Diagnostics and troubleshooting

Go to step 5. The problem is

solved.

Go to step 6. The problem is

solved.

Actions Yes No

7015

Step 6

Check if the imaging unit contacts (C) are contaminated or bent out of proper position.

Are the contacts contaminated and bent out of proper position?

Step 7

Clean or repair the imaging unit contacts.

Does the problem remain?

Go to step 7. Go to step 8.

Go to step 8. The problem is

solved.

Step 8

Check connection JPS1 on the controller board and the connections on the power supply.

Are the connections properly connected?

Step 9

Reconnect the cables.

Does the problem remain?

Step 10

Replace the power supply. See

page 339.

Does the problem remain?

“Power supply removal” on

White streaks and voided areas check

Go to step 10. Go to step 9.

Go to step 10. The problem is

solved.

Contact the next level of support.

The problem is solved.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, do not replace the imaging unit. Refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

Set the paper type and weight settings in the Paper menu to match the paper loaded.

Note: Make sure that the printer supports the paper loaded. For a complete list of supported paper, see the printer User’s Guide.

Does the problem remain?

Step 4

a Update the ﬁrmware to the latest version available.

b Enter the Diagnostics menu, and then change the EngSetting

14 value to 48. Note: You can also change the setting through a bundle ﬁle

or NPA command.

c Set Quite mode to O.

d Review the Event Log Summary sheets and check if either error

code 31.46 or 31.66 events occurred for the imaging unit. If they did, check if they are occurring with the current toner cartridge.

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Go to step 5. The problem is

solved.

Does the problem remain?

Diagnostics and troubleshooting

Actions Yes No

7015

Step 5

Check the shutter tab (A) on the toner cartridge for signs of damage.

Is the shutter tab damaged?

Step 6

Replace the imaging unit and the toner cartridge.

Does the problem remain?

Go to step 6. Go to step 7.

Go to step 7. The problem is

solved.

Step 7

Clean the printhead lens. See

page 423.

Note: This is applicable only to models installed with a galvo

LSU. To determine whether the LSU is galvo, check the serial number of the printer. The sixth digit character assigned should be in the 0–9 or B–N range (Example: 4514 20HH 007CR).

Does the problem remain?

Step 8

Check if the imaging unit contacts (B) are contaminated or bent out of proper position.

“Cleaning the printhead lenses” on

Go to step 8. The problem is

solved.

Go to step 9. Go to step 10.

Are the contacts contaminated or bent out of proper position?

Diagnostics and troubleshooting

Actions Yes No

7015

Step 9

Clean or repair the imaging unit contacts.

Does the problem remain?

Step 10

Check connection JPS1 on the controller board and all the connections on the power supply.

Are the connections properly connected?

Step 11

Replace the connections.

Does the problem remain?

Step 12

Replace the power supply. See

page 339.

Does the problem remain?

Step 13

Replace the printhead. See

on page 379.

“Power supply removal” on

“Laser scanning unit (LSU) removal”

Contact the next level of support.

Go to step 12. Go to step 11.

Go to step 12. The problem is

Go to step 13. The problem is

Contact the next level of support.

The problem is solved.

solved.

The problem is solved.

Does the problem remain?

Fine lines are not printed correctly

(speciﬁcally

Chinese characters) check

Diagnostics and troubleshooting

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

From the control panel, adjust the Toner Darkness setting to 7.

a From the Settings menu, navigate to:

Print Settings > Quality menu > Pixel Boost > Fonts > Submit

b From the Quality menu, select Toner Darkness, and then adjust

the setting to 7.

c Submit the changes.

Note: Adjusting the Toner Darkness setting to 7 results in a

slightly lighter print. You may leave the Toner Darkness value at 8 in order to maintain the darkness that you have grown accustomed to, but this will result in reduced toner yield.

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Contact the next level of support.

The problem is solved.

Does the problem remain?

Clipped pages or images check

Diagnostics and troubleshooting

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

Remove, and then reinstall the imaging unit.

Does the problem remain?

Step 4

Check if a separator plastic (A), or a piece of it, is stuck inside the imaging unit or if there are any other obstructions between the charge roller and photoconductor drum.

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Go to step 6. Go to step 5.

Is the imaging unit free from any separator plastic fragments or other obstructions?

Step 5

Using a pair of pliers, remove the separator plastic fragments and other obstructions.

Does the problem remain?

Step 6

Replace the imaging unit.

Does the problem remain?

Diagnostics and troubleshooting

Go to step 6. The problem is

solved.

Go to step 7. The problem is

solved.

Actions Yes No

7015

Step 7

Check the imaging unit contact block (B) for damage or improper installation.

Is the imaging unit contact block damaged or improperly installed?

Step 8

Reinstall or replace the imaging unit contact block.

Does the problem remain?

Go to step 8. Contact the next

level of support.

Contact the next level of support.

The problem is solved.

Compressed images appear on prints check

Diagnostics and troubleshooting

Actions Yes No

7015

Step 1

Remove the imaging unit, and then inspect the white photoconductor coupler (A). The coupler should be ﬁrmly connected to the imaging unit and should not freely rotate.

Does the coupler move freely or appear damaged?

Step 2

Replace the imaging unit.

Does the problem remain?

Step 3

Replace the main drive gearbox. See

removal” on page 281.

“Main drive gearbox

Go to step 2. Go to step 3.

Go to step 3. The problem is

solved.

Contact the next level of support.

The problem is solved.

Does the problem remain?

Incorrect margins on prints check

Diagnostics and troubleshooting

Actions Yes No

7015

Step 1

Adjust the guides in the tray according to the size of the paper loaded.

Does the problem remain?

Step 2

Do one of the following:

• From the printer control panel, set the paper size in the Paper

menu to match the paper loaded in the tray.

• Change the paper loaded in the tray to match the paper size

speciﬁed in the tray settings.

Does the problem remain?

Step 3

Depending on your operating system, specify the paper size from Printing Preferences or from the Print dialog.

Does the problem remain?

Step 4

a Enter the Diagnostics menu, and then select Registration.

b Adjust the margins as necessary.

Go to step 2. The problem is

solved.

Go to step 3. The problem is

solved.

Go to step 4 or contact the next level of support.

Contact the next level of support.

The problem is solved.

Does the problem remain?

Toner rubs o check

Diagnostics and troubleshooting

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

From the control panel, set the paper type, texture, and weight in the Paper menu to match the paper loaded.

Does the problem remain?

Step 4

Remove, and then reinstall the fuser.

Does the problem remain?

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. The problem is

solved.

Go to step 5. The problem is

solved.

Step 5

Replace the fuser. See

Does the problem remain?

Step 6

Reseat the connections on the power supply.

Does the problem remain?

Step 7

Replace the power supply. See

page 339.

Does the problem remain?

“Fuser removal” on page 375.

“Power supply removal” on

Toner specks appear on prints check

Go to step 6. The problem is

solved.

Go to step 7. The problem is

solved.

Contact the next level of support.

The problem is solved.

Diagnostics and troubleshooting

Actions Yes No

7015

Step 1

Check if the printer is using a genuine and supported Lexmark toner cartridge.

Note: If the printer is using a third‑party cartridge, then refer the users to their cartridge supplier.

Is the printer using a genuine and supported toner cartridge?

Step 2

Install a genuine and supported toner cartridge.

Does the problem remain?

Step 3

a Check the status of the imaging unit.

1 From the home screen, select Status/supplies. 2 Select View Supplies .

b Check the condition of the imaging unit.

Is the imaging unit near end of life and/or showing signs of toner leakage?

Step 4

Replace the imaging unit.

Go to step 3. Go to step 2.

Go to step 3. The problem is

solved.

Go to step 4. Go to step 5.

Go to step 5. The problem is

solved.

Does the problem remain?

Step 5

Check if toner specks appear only on the edges or back side of the pages.

Do toner specks appear only on the edges or back side of the pages?

Step 6

Replace the transfer roller. See

page 309.

Does the problem remain?

Step 7

Check the printer for stray toner contamination.

Is the printer contaminated with stray toner?

Step 8

Using an approved toner vaccum cleaner, completely clean the printer, toner cartridge, and imaging unit of toner contamination.

“Transfer roll removal” on

Go to step 6. Go to step 7.

Go to step 7. The problem is

solved.

Go to step 8. Contact the next

level of support.

Contact the next level of support.

The problem is solved.

Does the problem remain?

Diagnostics and troubleshooting

Paper jams

Avoiding jams

Load paper properly

•

Make sure that the paper lies ﬂat in the tray.

• Do not remove a tray while the printer is printing.

• Do not load a tray while the printer is printing. Load it before printing, or wait for a prompt to load it.

• Do not load too much paper. Make sure that the stack height is below the maximum paper ﬁll indicator.

• Do not slide paper into the tray. Load paper as shown in the illustration.

7015

• Make sure that the paper guides are properly positioned.

• Push the tray ﬁrmly into the printer after loading paper.

Use recommended paper

•

Use only recommended paper or specialty media.

• Do not load wrinkled, creased, damp, bent, or curled paper.

• Flex, fan, and straighten paper before loading it.

• Do not use paper that has been cut or trimmed by hand.

• Do not mix paper sizes, weights, or types in the same tray.

Diagnostics and troubleshooting

7015

• Make sure that the paper size and type are set correctly on the Embedded Web Server or the computer.

Note: Depending on your operating system, access the Paper menu using Local Printer Settings Utility or Printer Settings.

• Store paper according to manufacturer recommendations.

Understanding jam messages and locations

When a jam occurs, a message indicating the jam location and information to clear the jam appears on the printer display. Open the doors, covers, and trays indicated on the display to remove the jam.

Notes:

• When Jam Assist is set to On, the printer automatically ﬂushes blank pages or pages with partial prints to

the standard bin after a jammed page has been cleared. Check your printed output stack for discarded pages.

• When Jam Recovery is set to On or Auto, the printer reprints jammed pages. However, the Auto setting

does not guarantee that the page will reprint.

Jam access area Printer control panel

message

1 Automatic

document feeder (ADF)

2 Standard bin [x]‑page jam, clear standard

3 Front door [x]‑page jam, open front door.

4 Multipurpose feeder [x]‑page jam, clear manual

5 Tray 1 [x]‑page jam, remove tray 1 to

6 Tray [x] [x]‑page jam, remove tray [x].

[x]‑page jam, open automatic feeder top cover. [28y.xx]

bin. [20y.xx]

[20y.xx]

feeder. [250.xx]

clear duplex. [23y.xx]

[24y.xx]

Diagnostics and troubleshooting

What to do

Remove all paper from the ADF tray, and then remove the jammed paper.

Remove the jammed paper.

Open the front door, then remove the toner cartridge and imaging unit, and then the jammed paper.

Remove all paper from the multipurpose feeder, and then remove the jammed paper.

Pull out tray 1 completely, then push the front duplex ﬂap down, and then remove the jammed paper.

Note: You may need to open the rear door to clear some 23y.xx paper jams.

Pull out the indicated tray, and then remove the jammed paper.

7015

Jam access area Printer control panel

message

7 Rear door [x]‑page jam, open rear door.

[20y.xx]

What to do

Open the rear door, and then remove the jammed paper.

[x]‑page jam, open front door. [20y.xx]

CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a hot

component, allow the surface to cool before touching it.

1 Press the button on the right side of the printer, and then open the front door.

2 Pull the toner cartridge out using the handle.

Diagnostics and troubleshooting

3 Lift the green handle, and then pull the imaging unit out of the printer.

Warning—Potential Damage: Do not touch the shiny blue photoconductor drum under the imaging unit.

Doing so may aect the quality of future print jobs.

7015

4 Place the imaging unit aside on a ﬂat, smooth surface.

Warning—Potential Damage: Do not expose the imaging unit to direct light for more than 10 minutes.

Extended exposure to light may cause print quality problems.

5 Lift the green ﬂap in front of the printer.

6 Firmly grasp the jammed paper on each side, and then gently pull it out.

Diagnostics and troubleshooting

7015

Note: Make sure all paper fragments are removed.

7 Insert the imaging unit by aligning the arrows on the side rails of the unit with the arrows on the side rails

inside the printer, and then insert the imaging unit into the printer.

8 Insert the toner cartridge by aligning the side rails of the cartridge with the arrows on the side rails inside

the printer, and then insert the cartridge into the printer.

Diagnostics and troubleshooting

7015

9 Close the front door.

10 From the printer control panel, touch to clear the message and continue printing. For non‑touch‑screen

printer models, select Next >

> Clear the jam, press OK > .

[x]‑page jam, clear standard bin. [20y.xx]

1 Firmly grasp the jammed paper on each side, and then gently pull it out.

Note: Make sure all paper fragments are removed.

2 From the printer control panel, touch to clear the message and continue printing. For non‑touch‑screen

printer models, select Next >

> Clear the jam, press OK > .

[x]‑page jam, open rear door. [20y.xx]

1 Open the front door to loosen the jammed paper in the rear door.

2 Gently pull down the rear door.

Diagnostics and troubleshooting

CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a

hot component, allow the surface to cool before touching it.

3 Firmly grasp the jammed paper on each side, and then gently pull it out.

7015

Note: Make sure all paper fragments are removed.

4 Close the rear door, and then the front door.

5 From the printer control panel, touch to clear the message and continue printing. For non‑touch‑screen

printer models, select Next >

> Clear the jam, press OK > .

Diagnostics and troubleshooting

[x]‑page jam, remove tray 1 to clear duplex. [23y.xx]

CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a hot

component, allow the surface to cool before touching it.

1 Pull the tray completely out of the printer.

2 Locate the blue lever, and then pull it down to release the jam.

7015

3 Firmly grasp the jammed paper on each side, and then gently pull it out.

Note: Make sure all paper fragments are removed.

Diagnostics and troubleshooting

7015

4 Insert the tray.

5 From the printer control panel, touch to clear the message and continue printing. For non‑touch‑screen

printer models, select Next >

> Clear the jam, press OK > .

[x]‑page jam, open tray [x]. [24y.xx]

1 Pull the tray completely out of the printer.

Note: The message on the printer display indicates the tray where the jammed paper is located.

2 Firmly grasp the jammed paper on each side, and then gently pull it out.

Note: Make sure all paper fragments are removed.

Diagnostics and troubleshooting

7015

3 Insert the tray.

4 From the printer control panel, touch to clear the message and continue printing. For non‑touch‑screen

printer models, select Next >

> Clear the jam, press OK > .

[x]‑page jam, open tray [x]. [24y.xx]

1 Pull the tray completely out of the printer.

Note: The message on the printer display indicates the tray where the jammed paper is located.

2 Firmly grasp the jammed paper on each side, and then gently pull it out.

Note: Make sure all paper fragments are removed.

Diagnostics and troubleshooting

7015

3 Insert the tray.

4 From the printer control panel, touch to clear the message and continue printing. For non‑touch‑screen

printer models, select Next >

> Clear the jam, press OK > .

[x]‑page jam, clear manual feeder. [25y.xx]

1 From the multipurpose feeder,

Note: Make sure all paper fragments are removed.

2 Flex the sheets of paper back and forth to loosen them, and then fan them. Do not fold or crease the paper.

Straighten the edges on a level surface.

grasp the jammed paper on each side, and then gently pull it out.

ﬁrmly

Diagnostics and troubleshooting

3 Reload paper into the multipurpose feeder.

Note: Make sure the paper guide lightly rests against the edge of the paper.

7015

4 From the printer control panel, touch to clear the message and continue printing. For non‑touch‑screen

printer models, select Next >

> Clear the jam, press OK > .

[x]‑page jam, open automatic feeder top cover. [28y.xx]

1 Remove all original documents from the ADF tray.

Note: The message is cleared when the pages are removed from the ADF tray.

2 Open the ADF cover.

3 Firmly grasp the jammed paper on each side, and then gently pull it out.

Note: Make sure all paper fragments are removed.

4 Close the ADF cover. 5 Straighten the edges of the original documents, then load the original documents into the ADF, and then

adjust the paper guide.

6 From the printer control panel, touch to clear the message and continue printing. For non‑touch‑screen

printer models, select Next >

> Clear the jam, press OK > .

Diagnostics and troubleshooting

200 paper jams

200 paper jam messages

Notes:

• Some error messages are applicable only to printer models with installed polygon LSU (laser scanning

unit).

• If the sixth digit character assigned to the serial number of the printer is in the P–Z range, then the

printer is installed with a polygon LSU (example: 4514 2ZHH 007CR).

Error code Description Action

7015

200.01 Input sensor covered during warm-up sequence. Go to

on page 100.

200.02 Input sensor covered too quickly. Go to

check” on page 100.

200.03 Media did not reach input sensor from MPF. Go to

check” on page 100.

200.05 Input sensor covered too long. Go to

check” on page 100.

200.07 Input sensor failed to become uncovered from sheet ahead.

200.08 Page arrive at input senor at unexpected time. Go to

200.09 Printhead did not receive proper motor feedback to start laser servo.

200.10 Printhead motor not locked when media reaches the input sensor.

200.11 Printhead motor fell out of lock after page reaches the input sensor.

Mirror motor got locked, and then lost it again before the initial lock timeout.

Go to

check” on page 100.

Go to

on page 102.

Go to

on page 102.

Go to

on page 102.

Go to

on page 152.

“Sensor (input) static jam service check”

“Sensor (input) early/late arriving service

“Sensor (input) image jam service check”

“Laser scanning unit (LSU) service check”

200.12 Printhead was not ready for media. Go to

on page 102.

200.13 Media at input sensor is not the next media to be imaged.

200.14 Media reached the input sensor before EP was ready.

200.15 Image data did not start on time. Go to

200.16 Fuser motor stalled. Go to

200.19 Page that was successfully picked from option tray never reached the input sensor.

Go to

on page 102.

Go to

on page 102.

check” on page 103.

Go to

check” on page 100.

Diagnostics and troubleshooting

“Sensor (input) image jam service check”

“Main drive motor control jam service

“Sensor (input) early/late arriving service

Error code Description Action

7015

200.21 No response from paper port driver while waiting for the source to deactivate the Input Source Ready

200.23 Laser servo never started due to potential conﬂict with the transfer servo.

200.24 Measured gap at input sensor too small to meet video delivery requirements. (Not enough time since prior image

200.29 Printhead drive control out of range due to an external event beyond what the control is designed to handle.

200.30 Invalid printhead NVRAM. Go to

200.31 Paper, in the middle of a job, at input sensor before interrupt occurred.

200.32 Detected cover switch bounce. Go to

Printhead lost HSYNCs due to a glitch with the laser safety interlock, for example, bouncy cover switch.

to indicate it has initiated picking.

ﬂag

ﬁnished

to start new image).

Go to

check” on page 100.

Go to

on page 102.

Go to

on page 102.

Go to

on page 102.

Go to

check” on page 100.

Go to

on page 152.

“Sensor (input) early/late arriving service

“Sensor (input) image jam service check”

“Sensor (input) early/late arriving service

“Laser scanning unit (LSU) service check”

200.33 Input sensor covered too quickly. Go to

check” on page 100.

200.38 Interpage servo gap smaller than expected for galvo oset target evaluation.

200.42 Rogue sheet at ACM sensor while ﬂushing the paper path prior to declaring tray 1 source empty.

200.44 Page from tray 1 did not reach the input sensor (or the manual feed sensor, if present) after multiple pick attempts. Page did make it out of the tray at least as far as the ACM sensor.

200.45 During warm up ﬂush, sheet detected too long over input sensor.

Go to

check” on page 100.

Go to

check” on page 100.

Go to

check” on page 100.

Go to

check” on page 100.

“Sensor (input) early/late arriving service

Diagnostics and troubleshooting

Sensor (input) static jam service check

Action Yes No

7015

Step 1

Check the input sensor area for jammed media fragments.

Is the paper path free of partially fed or jammed media?

Step 2

Check the jam access cover if it is blocking the input sensor.

Is it blocking the input sensor?

Step 3

Check the input sensor cable for proper connection.

Is it properly connected?

Step 4

POR into the Diagnostics menu and perform a sensor test: Diagnostics Menu > Base Sensor Test > Input.

Does the sensor state on the control panel display change when it is toggled?

Step 5

Does the error remain?

Go to step 2. Clear the paper path

of any media fragments.

Replace the jam access cover. See

“Jam access cover removal” on page 331.

Go to step 4. Reseat the cable.

Go to step 5. Replace the input

Contact the next level of support.

Go to step 3.

sensor. See

sensor and input sensor removal” on page 342.

The problem is solved.

“Duplex

Sensor (input) early/late arriving service check

Action Yes No

Step 1

Check the paper source.

Is the paper from the MPF?

Step 2

Check the MPF pick roller and separator pad for damage and contamination.

Are they free of damage and contamination?

Go to step 2. Go to step 5.

Go to step 3. Replace the MPF

pick roller and separator pad. See

“MPF pick roller removal” on page 329 and “Separator pad removal” on page 336.

Diagnostics and troubleshooting

100

Lexmark MX310, MX317, MX510, MX511, MX517de Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

Notices, conventions, and safety information

Laser notice

Conventions

Safety information

General caution statements

Change history

Change history

General information

Media guidelines

Paper guidelines

Paper characteristics

Unacceptable paper

Selecting paper

Selecting preprinted forms and letterhead

Storing paper

Using specialty media

Tips on using card stock

Tips on using envelopes

Tips on using labels

Tips on using letterhead

Tips on using transparencies

Supported paper sizes, types, and weights

Supported paper sizes

Supported paper types and weights

Data security notice

Tools required for service

Diagnostics and troubleshooting

Troubleshooting overview

Performing the initial troubleshooting check

Using Safe Mode

Fixing print quality issues

Initial print quality check

Gray background or toner fog check

Blank pages check

Print is too dark check

Print is too light check

Paper curl check

Folded or wrinkled paper check

Solid black pages check

Repeating defects check

Skewed print check

Streaked vertical lines appear on prints check

Horizontal light bands check

Vertical light bands check

Vertical dark bands check

Vertical dark streaks with print missing check

White streaks and voided areas check

Clipped pages or images check

Compressed images appear on prints check

Incorrect margins on prints check

Toner specks appear on prints check

Paper jams

Avoiding jams

Understanding jam messages and locations

200 paper jams

200 paper jam messages

Sensor (input) static jam service check

Sensor (input) early/late arriving service check