Lexmark MB2650, MX622, XM3250 MFPs Service Manual

MB2650, MX622, & XM3250 MFPs

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7018-67x

Service Manual

• Start diagnostics

• Maintenance

• Safety and notices

• Trademarks

• Index

September 14, 2018 www.lexmark.com

Product information

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Product name: Lexmaek MB2650; Lexmark MX622ade, MX622adhe, MX622adthe; Lexmark XM3250 MFPs

Machine type: 7018

Model(s): 676, 678, 679

7018

Edition notice

September 14, 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

7018

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General information

Printer model conﬁgurations

The LexmarkTM MX622ade, MX622adhe, MB2650ade, and XM3250 printers are network‑capable, multifunction laser printers. The printers support monochrome printing and are embedded with home screen solutions and applications. 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

MX622ade Monochrome laser 4‑in‑1 MFP with 7.0" color touch

screen and fax

MX622adhe Monochrome laser 4‑in‑1 MFP with 7.0" color touch

screen, fax, and hard drive

MB2650ade Monochrome laser 4‑in‑1 MFP with 7.0" color touch

screen and fax

XM3250 Monochrome laser 4‑in‑1 MFP with 7.0" color touch

screen, fax, and hard drive

Finding the serial number

Open door A, and then ﬁnd the serial number at the right side of the printer.

7018-676

7018-678

7018-676

7018-679

General information

Parts catalog

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Legend

The following column headings are used in the parts catalog:

• ASM‑index—Identiﬁes the assembly and the item in the diagram. For example, 3‑1 indicates Assembly 3

and item 1 in the table.

• Part number—Identiﬁes the unique number that correlates with the part.

• Units/mach—Refers to the number of units actually used in the base machine or product.

• Units/option—Refers to the number of units in a particular option.

• Units/FRU—Refers to the number of units in a particular FRU.

• Description—A brief description of the part.

The following abbreviations are used in the parts catalog:

• NS (not shown) in the Asm‑index column indicates that the part is procurable but is not pictured in the

illustration.

• PP (parts packet) in the Description column indicates that the part is contained in a parts packet.

7018

Parts catalog

380

Assembly 1: Covers

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7018

Parts catalog

381

Assembly 1: Covers

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Asm-index P/N Units/mach Units/FRU Description Removal procedure

7018

1 41X1343 1 1 Top cover

2 40X9102 1 1 Output extender --

3 41X1357 1 1 Rear door and cover

4 41X2275 1 1 Rear access door --

540X8521 1 1Dust cover --

6 41X1166 1 1 Right cover

7 41X1233 1 1 Controller board access

cover

8 41X1164 1 1 Nameplate

9 41X1168 1 1 Left cover

10 41X1358 1 1 Top access cover

11 41X2501 1 1 Scanner rear cover

“Top cover removal” on page 289

“Rear door and cover removal” on page 287

“Right cover removal” on page 230

“Nameplate removal” on page 245

“Left cover removal” on page 219

“Top access cover removal” on page 247

“Scanner rear cover removal” on page 286

Parts catalog

382

Assembly 2: Control panel

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7018

Parts catalog

383

Assembly 2: Control panel

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Asm-index P/N Units/mach Units/FRU Description Removal procedure

7018

1 41X2439 1 1 Bezel (MX622)

2 41X2440 1 1 Control panel cover

and buttons

3 41X0051 1 1 Control panel display

assembly

4 41X2232 1 1 Control panel ﬂat cable

541X2230 1 1Speaker

6 41X1354 1 1 Control panel rear

cover

741X1345 1 1Scanner front cover

“Bezel removal” on page 248

“Control panel covers and buttons removal” on page 249

“Control panel display assembly removal” on page 248

“Control panel ﬂat cable removal” on page 255

“Speaker removal” on page 252

“Control panel covers and buttons removal” on page 249

“Scanner front cover removal” on page 252

Parts catalog

384

Assembly 3: Electronics 1

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7018

Parts catalog

385

Assembly 3: Electronics 1

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Asm-index P/N Units/mach Units/FRU Description Removal procedure

7018

1 41X1185 1 1 Printhead

2 41X1178 1 1 Fuser, 110V

2 41X1179 1 1 Fuser, 220V

2 41X1180 1 1 Fuser, 100V

3 41X1363 1 1 Controller board

4 41X1201 1 1 Power supply,

100V/110V

4 41X1202 1 1 Power supply, 220V

5 41X1224 1 1 Main drive gearbox

“Printhead removal” on page 294

“Fuser removal” on page 288

“Controller board removal” on page 238

“Power supply removal” on page 265

“Main drive gearbox removal” on page 220

Parts catalog

386

Assembly 4: Electronics 2

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7018

Parts catalog

387

Assembly 4: Electronics 2

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Asm-index P/N Units/mach Units/FRU Description Removal procedure

7018

1 41X1989 1 1 Pick/lift motor

gearbox

2 41X2259 1 1 Cooling fan

3 41X1214 1 1 Reverse solenoid

4 41X1237 1 1 Cartridge gearbox

5 41X1213 1 1 MPF solenoid

“Pick/lift motor gearbox removal” on page 283

“Cooling fan removal” on page 236

“Reverse solenoid removal” on page 226

“Cartridge gearbox removal” on page 229

“MPF solenoid removal” on page 228

Parts catalog

388

Assembly 5: Electronics 3

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7018

Parts catalog

389

Assembly 5: Electronics 3

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Asm-index P/N Units/mach Units/FRU Description Removal procedure

7018

141X1988 1 1Sensor (cartridge

barrel)

2 41X1162 1 1 Toner cartridge smart

chip contact

3 41X2274 1 1 Sensor (bin full)

4 41X1209 1 1 Sensor (front door)

5 41X1236 1 1 Interconnect cable

6 41X1238 1 1 Sensor (tray present)

7 41X1210 1 1 Sensor (MPF paper

present)

“Cartridge barrel shutter sensor kit removal” on page 242

“Toner cartridge smart chip contact removal” on page 240

“Sensor (bin full) removal” on page 293

“Sensor (front door) removal” on page 257

“Interconnect cable removal” on page 233

“Sensor (tray present) removal” on page 235

“Sensor (MPF paper present) removal” on page 262

Parts catalog

390

+ 31 hidden pages