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HP LaserJet M2727 MFP Series
Service Manual
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HP LaserJet M2727 MFP Series
Service Manual
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Copyright information
Safety information
Trademark credits
© 2007 Copyright Hewlett-Packard
Development Company, L.P.
Reproduction, adaptation, or translation
without prior written permission is prohibited,
except as allowed under the copyright laws.
The information contained herein is subject
to change without notice.
The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products
and services. Nothing herein should be
construed as constituting an additional
warranty. HP shall not be liable for technical
or editorial errors or omissions contained
herein.
Part number CB532-90946
Edition 1, 11/2007
WARNING!
Potential Shock Hazard
Always follow basic safety precautions when
using the product to reduce risk of injury from
fire or electric shock.
Read and understand all instructions in the
user guide.
Observe all warnings and instructions
marked on the product.
Use only a grounded electrical outlet when
connecting the product to a power source. If
you do not know whether the outlet is
grounded, check with a qualified electrician.
Do not touch the contacts on the end of any
of the sockets on the product. Replace
damaged cords immediately.
Unplug the product from wall outlets before
cleaning.
Do not install or use the product near water
or when you are wet.
Install the product securely on a stable
surface.
Microsoft® and Windows® are U.S.
registered trademarks of Microsoft
Corporation.
Windows Vista™ is either a registered
trademark or trademark of Microsoft
Corporation in the United States and/or other
countries.
Linux is a U.S. registered trademark of Linus
Torvalds.
UNIX® is a registered trademark of The
Open Group.
PostScript® is a trademark of Adobe
Systems Incorporated.
Energy Star® and the Energy Star logo® are
U.S. registered marks of the United States
Environmental Protection Agency.
Install the product in a protected location
where no one can step on or trip over the
power cord and where the power cord will not
be damaged.
If the product does not operate normally, see
the online user guide.
Refer all servicing questions to qualified
personnel.
Information regarding FCC Class B, Parts 15
and 68 requirements can be found in the user
guide.
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Table of contents
1 Product information
Quick access to product information .................................................................................................... 2
Product comparison ............................................................................................................................. 3
Product features ................................................................................................................................... 4
Product walkaround .............................................................................................................................. 5
Front view ............................................................................................................................ 5
Back view ............................................................................................................................. 6
Interface ports ...................................................................................................................... 6
Control panel ....................................................................................................................... 7
Serial number and model number location ........................................................................................... 8
Software description ............................................................................................................................. 9
Supported operating systems .............................................................................................. 9
Supported printer drivers ..................................................................................................... 9
Software included with the product ...................................................................................... 9
Recommended installation for Windows ........................................................... 10
Express installation (USB or network) ............................................................... 10
Macintosh software ........................................................................................... 10
Software for Windows ........................................................................................................................ 12
HP ToolboxFX ................................................................................................................... 12
Embedded Web server (EWS) .......................................................................................... 12
Software for Macintosh ....................................................................................................................... 13
HP Director ........................................................................................................................ 13
Macintosh Configure Device (Mac OS X v10.3, v10.4, and later) ..................................... 13
PDEs (Mac OS X v10.3, v10.4, and later) ......................................................................... 14
Uninstall software ............................................................................................................................... 15
Windows ............................................................................................................................ 15
Macintosh .......................................................................................................................... 15
Media specifications ........................................................................................................................... 16
Supported paper and print media sizes ............................................................................. 16
Media to avoid ................................................................................................................... 17
Media that can damage the product .................................................................................. 17
2 Installation
Operating environment ....................................................................................................................... 20
Minimum system requirements .......................................................................................... 21
Unpack the product ............................................................................................................................ 22
Install input devices ............................................................................................................................ 23
ADF input tray .................................................................................................................... 23
250-sheet input tray (tray 3) ............................................................................................... 24
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Install the control-panel faceplate ....................................................................................................... 25
Load paper and print media ............................................................................................................... 26
Install memory DIMMs ........................................................................................................................ 30
3 Maintenance
Manage supplies ................................................................................................................................ 34
Clean the product ............................................................................................................................... 49
Manage the product ........................................................................................................................... 58
Load documents to fax, copy, or scan ............................................................................... 26
Tray 1 ................................................................................................................................. 27
Tray 2 or 3 ......................................................................................................................... 28
Configure trays .................................................................................................................. 29
Change tray selection ........................................................................................................ 29
Information ......................................................................................................................... 30
Install a memory DIMM ..................................................................................................... 30
Life expectancies of supplies and the product ................................................................... 34
Order supplies ................................................................................................................... 34
Store print cartridges ......................................................................................................... 35
Replace and recycle supplies ............................................................................................ 35
Replace print cartridge ....................................................................................................... 37
Load staples ...................................................................................................................... 39
Replace the tray 2 pickup roller ......................................................................................... 40
Replace the tray 2 and optional tray 3 separation pad ...................................................... 45
HP policy on non-HP supplies ........................................................................................... 48
Reset the product for non-HP supplies ............................................................. 48
HP fraud hotline ................................................................................................................. 48
Clean the exterior .............................................................................................................. 49
Clean the flatbed scanner glass ........................................................................................ 49
Clean the scanner-cover backing ...................................................................................... 51
Clean the tray 2 pickup roller ............................................................................................ 52
Clean the ADF pickup-roller assembly .............................................................................. 55
Clean the paper path ......................................................................................................... 56
Clean the paper path from HP ToolboxFX ........................................................ 57
Clean the paper path from the product control panel ........................................ 57
HP ToolboxFX ................................................................................................................... 58
View the HP ToolboxFX .................................................................................... 58
Status ................................................................................................................ 58
Event log ........................................................................................... 59
Alerts ................................................................................................................. 59
Set up status alerts ........................................................................... 59
Set up e-mail alerts ........................................................................... 59
Fax .................................................................................................................... 59
Fax tasks .......................................................................................... 60
Fax phone book ................................................................................ 60
Fax send log ..................................................................................... 62
Fax receive log ................................................................................. 62
Help (Documentation) ....................................................................................... 62
System settings ................................................................................................. 63
Device information ............................................................................ 63
Paper handling ................................................................................. 64
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Embedded Web server ...................................................................................................... 66
Macintosh Configure Device (Mac OS X v10.3, v10.4, and later) ..................................... 67
4 Theory of operation
Basic operation ................................................................................................................................... 70
Sequence of operation for the base unit ............................................................................ 70
Scanner and ADF functions and operation ........................................................................................ 72
Scanner functions ............................................................................................................. 72
Scanner operation ............................................................................................................. 73
ADF operation .................................................................................................................... 73
ADF paper path and ADF sensors ..................................................................................... 74
ADF jam detection ............................................................................................................. 75
Internal components (base unit) ......................................................................................................... 76
Engine control system ........................................................................................................................ 78
Laser/scanner system ........................................................................................................................ 80
Pickup/feed/delivery system ............................................................................................................... 81
Image-formation system .................................................................................................................... 83
Fax functions and operation .............................................................................................................. 87
Computer and network security features ........................................................................... 87
PSTN operation ................................................................................................................. 87
Receive faxes when you hear fax tones ............................................................................ 87
Distinctive ring function ...................................................................................................... 88
Fax by using Voice over IP services .................................................................................. 88
The fax subsystem ............................................................................................................. 89
Fax card in the fax subsystem ........................................................................................... 89
Fax page storage in flash memory .................................................................................... 91
Print quality ....................................................................................... 64
Paper types ...................................................................................... 64
System setup .................................................................................... 65
Service .............................................................................................. 65
Device Polling ................................................................................... 65
Print settings ..................................................................................................... 65
Printing ............................................................................................. 65
PCL 5e .............................................................................................. 66
PostScript ......................................................................................... 66
Network settings ................................................................................................ 66
Features ............................................................................................................ 66
Secure the embedded Web server ................................................................... 67
Safety isolation .................................................................................................. 89
Safety-protection circuitry .................................................................................. 89
Data path ........................................................................................................... 90
Hook state ......................................................................................................... 90
Downstream device detection ........................................................................... 90
Hook switch control ........................................................................................... 90
Ring detect ........................................................................................................ 91
Line current control ........................................................................................... 91
Billing- (metering-) tone filters ........................................................................... 91
Stored fax pages ............................................................................................... 91
Advantages of flash memory storage ............................................................... 91
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5 Removal and replacement
Introduction ......................................................................................................................................... 94
Removal and replacement strategy .................................................................................. 94
Electrostatic discharge ....................................................................................................... 94
User-replaceable parts ...................................................................................................... 94
Required tools ................................................................................................................... 95
Before performing service .................................................................................................. 95
After performing service ..................................................................................................... 96
Post-service tests .............................................................................................................. 96
Parts removal order ........................................................................................................... 98
Remove the print cartridge ................................................................................................ 99
External panels, covers, and doors .................................................................................................. 100
Right cover ....................................................................................................................... 100
Left cover ......................................................................................................................... 102
Print-cartridge door .......................................................................................................... 104
Rear cover ....................................................................................................................... 106
Top cover ......................................................................................................................... 108
Replace the ADF pickup-roller assembly ......................................................................................... 110
ADF scanner glass ........................................................................................................................... 113
ADF assembly .................................................................................................................................. 115
Scanner/ADF assembly .................................................................................................................... 117
Bezel and control panel .................................................................................................................... 119
Internal assemblies .......................................................................................................................... 122
Convenience-stapler assembly (HP LaserJet M2727nfs only) ........................................ 122
Convenience-stapler power supply (HP LaserJet M2727nfs only) .................................. 124
Convenience-stapler AC inlet cable (HP LaserJet M2727nfs only) ................................. 126
Convenience-stapler power supply bracket and strap (HP LaserJet M2727nfs only) . ... . 127
Speaker ........................................................................................................................... 128
Power-switch PCA ........................................................................................................... 130
Formatter ......................................................................................................................... 132
Duplex assembly ............................................................................................................. 135
Laser/scanner (print engine) ............................................................................................ 137
Memory-tag-reader assembly (E-label reader) ................................................................ 139
Fan ................................................................................................................................... 141
Duplex-drive gears ........................................................................................................... 143
Duplex solenoid ............................................................................................................... 145
Fuser ................................................................................................................................ 147
Interlock assembly ........................................................................................................... 152
Engine controller assembly (ECU) ................................................................................... 153
Main motor ....................................................................................................................... 158
Pickup-and-feed assemblies ............................................................................................ 160
Registration-roller assembly ............................................................................................ 161
Main gear assembly and tray 2 pickup solenoid .............................................................. 162
Test 1 (print-quality test) ................................................................................... 96
Test 2 (copy-quality test) ................................................................................... 96
Test 3 (fax-quality test) ...................................................................................... 97
Transfer roller .................................................................................................. 160
6 Solve problems
Problem-solving checklist ................................................................................................................. 166
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Control-panel messages .................................................................................................................. 169
Alert and warning messages .......................................................................................... 169
Alert and warning message tables .................................................................. 169
Critical error messages .................................................................................................... 177
Critical error message-tables .......................................................................... 177
Clear jams ........................................................................................................................................ 179
Causes of jams ................................................................................................................ 179
Where to look for jams ..................................................................................................... 180
Clear jams from the ADF ................................................................................................. 180
Clear jams from the input-tray areas ............................................................................... 182
Clear jams from the duplexer ........................................................................................... 184
Clear jams from the output-bin areas .............................................................................. 186
Top (face-down) output bin ............................................................................. 186
Rear (face-up) output bin ................................................................................ 187
Clear jams from the print-cartridge area .......................................................................... 188
Clear jams from the convenience stapler (HP LaserJet M2727nfs MFP only) ................ 189
Avoid repeated jams ....................................................................................................... 190
Control-panel menus ........................................................................................................................ 191
Use the control-panel main menus .................................................................................. 191
Control-panel main menus ............................................................................................... 191
Control-panel secondary menus ...................................................................................... 199
Use the control-panel secondary menus ......................................................... 199
Control-panel secondary menus ..................................................................... 199
Print problems .................................................................................................................................. 204
Print-quality problems ...................................................................................................... 204
Improve print quality ........................................................................................ 204
Print-quality settings ....................................................................... 204
Identify and correct print defects ..................................................................... 205
Print-quality checklist ...................................................................... 205
General print-quality issues ............................................................ 205
Scan problems ................................................................................................................................. 211
Solve scanned-image problems ...................................................................................... 211
Scan-quality problems ..................................................................................................... 213
Prevent problems ............................................................................................ 213
Solve scan-quality problems ........................................................................... 213
Copy problems ................................................................................................................................. 214
Prevent problems ............................................................................................................. 214
Image problems ............................................................................................................... 214
Media-handling problems ................................................................................................ 215
Performance problems .................................................................................................... 217
Fax problems .................................................................................................................................... 218
General fax problem-solve ............................................................................................... 218
Problems receiving faxes ................................................................................................. 219
Problems sending faxes .................................................................................................. 222
Voice-call problems ......................................................................................................... 224
Media-handling problems ................................................................................................ 225
Performance problems .................................................................................................... 226
Control-panel display problems ........................................................................................................ 227
Convenience-stapler problems (HP LaserJet M2727nfs only) ......................................................... 227
DSL problems ................................................................................................................................... 228
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PABX line problems ......................................................................................................... 228
ADF problems .................................................................................................................................. 229
Functional checks ............................................................................................................................. 230
Drum rotation test ............................................................................................................ 230
Engine test ....................................................................................................................... 231
Half self-test functional check .......................................................................................... 232
Perform a half self-test check .......................................................................................... 232
Perform other checks ....................................................................................................... 232
Heating element check .................................................................................................... 233
High-voltage contacts check ............................................................................................ 233
Check the print-cartridge contacts ................................................................ 233
Check the high-voltage connector assembly ................................................. 234
Service-mode functions .................................................................................................................... 235
NVRAM initialization ........................................................................................................ 235
Super NVRAM initialization .............................................................................................. 235
Service menu ................................................................................................................... 235
Problem-solve tools .......................................................................................................................... 237
Product information pages and reports ............................................................................ 237
Configuration page .......................................................................................... 237
Supplies Status page ...................................................................................... 237
PCL, PCL 6, or PS font list .............................................................................. 237
Demo page ...................................................................................................... 238
Usage page ..................................................................................................................... 238
Menu map ........................................................................................................................ 238
Network report ................................................................................................................. 238
Fax reports ....................................................................................................................... 239
Fax activity log ................................................................................................ 239
Fax call report ................................................................................................. 239
Phone book report ........................................................................................... 239
Billing-code report ........................................................................................... 240
HP ToolboxFX ................................................................................................................. 240
To view HP ToolboxFX ................................................................................... 240
Troubleshooting tab ........................................................................................ 240
Service menu .................................................................................................................. 241
Restore the factory-set defaults ...................................................................... 241
Clean the paper path ....................................................................................... 241
T.30 protocol trace .......................................................................................... 242
Archive print .................................................................................................... 242
Firmware updates ............................................................................................................................. 243
Firmware update by using a flash executable file ............................................................ 243
7 Parts
Accessories and ordering information .............................................................................................. 247
Supplies ............................................................................................................................................ 248
Memory ............................................................................................................................................ 248
Cable and interface accessories ...................................................................................................... 248
Paper-handling accessories ............................................................................................................ 249
Whole unit replacement .................................................................................................................... 250
Scanner/ADF replacement parts ...................................................................................................... 254
Control-panel bezels ........................................................................................................................ 255
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Supplementary documentation and support ..................................................................................... 257
Problem-solve diagrams ................................................................................................................... 259
Repetitive image defects ................................................................................................. 259
Interface connectors ....................................................................................................... 260
Formatter connectors ....................................................................................................... 260
Fax card ........................................................................................................................... 261
Solenoids ......................................................................................................................... 262
Switches and sensors ...................................................................................................... 263
Rollers and pads .............................................................................................................. 264
PCAs (base unit) .............................................................................................................. 265
Major components (base unit) ......................................................................................... 266
Scanner and ADF ............................................................................................................ 267
Circuit diagram (1 of 2) .................................................................................................... 268
Circuit diagram (2 of 2) .................................................................................................... 268
Parts lists and diagrams ................................................................................................................... 270
Types of screws ............................................................................................................... 271
Scanner and ADF assemblies .......................................................................................................... 272
Scanner components ....................................................................................................................... 274
ADF components .............................................................................................................................. 276
Convenience stapler components (HP LaserJet M2727nfs only) .................................................... 278
Formatter, fax card, HP jewel, and nameplate ................................................................................. 280
External covers and panels .............................................................................................................. 282
Cartridge door assembly .................................................................................................................. 284
Internal components (1 of 4) ............................................................................................................ 286
Internal components (2 of 4) ............................................................................................................ 288
Internal components (3 of 4) ............................................................................................................ 290
Internal components (4 of 4) ............................................................................................................ 292
Engine-controller assembly (ECU) ................................................................................................... 294
Main-drive assembly ........................................................................................................................ 296
Duplexing-drive assembly ................................................................................................................ 298
Tray 2 cassette and tray 3 cassette/feeder ...................................................................................... 300
Duplexing assembly ......................................................................................................................... 302
Fuser assembly ................................................................................................................................ 304
Alphabetical parts list ....................................................................................................................... 306
Numerical parts list ........................................................................................................................... 312
Appendix A Service and support
Hewlett-Packard limited warranty statement .................................................................................... 319
Print cartridge limited warranty statement ........................................................................................ 321
Appendix B Specifications
Physical specifications ..................................................................................................................... 324
Electrical specifications .................................................................................................................... 324
Power consumption .......................................................................................................................... 324
Environmental specifications ............................................................................................................ 325
Acoustic emissions ........................................................................................................................... 325
Appendix C Regulatory information
FCC compliance ............................................................................................................................... 328
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Environmental product stewardship program ................................................................................... 329
Protecting the environment .............................................................................................. 329
Ozone production ............................................................................................................ 329
Power consumption ......................................................................................................... 329
Toner consumption .......................................................................................................... 329
Paper use ........................................................................................................................ 329
Plastics ............................................................................................................................ 329
HP LaserJet print supplies ............................................................................................... 329
Return and recycling instructions ..................................................................................... 330
United States and Puerto Rico ........................................................................ 330
Multiple returns (two to eight cartridges) ........................................ 330
Single returns ................................................................................. 330
Shipping .......................................................................................... 330
Non-US returns ............................................................................................... 330
Paper ............................................................................................................................... 330
Material restrictions .......................................................................................................... 330
Disposal of waste equipment by users in private households in the European Union ... . 331
Material Safety Data Sheet (MSDS) ................................................................................ 331
For more information ....................................................................................................... 332
Telephone Consumer Protection Act (United States) ...................................................................... 333
IC CS-03 requirements ..................................................................................................................... 333
EU statement for telecom operation ................................................................................................. 334
New Zealand telecom statements .................................................................................................... 334
Declaration of conformity .................................................................................................................. 335
Safety statements ............................................................................................................................. 336
Laser safety ..................................................................................................................... 336
Canadian DOC regulations .............................................................................................. 336
EMI statement (Korea) ..................................................................................................... 336
Laser statement for Finland ............................................................................................. 337
Substances table (China) ................................................................................................ 338
Index ................................................................................................................................................................. 339
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