Lexmark T420(n)

4048-00x
Extracted From Service Manual

404800x

Edition: September 2002 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. Comments may be addressed to Lexmark International, Inc., Department D22A/032-2, 740 West New Circle Road, Lexington, Kentucky 40550, U.S.A or e-mail at ServiceInfoAndTraining@Lexmark.com. Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. You can purchase additional copies of publications related to this product by calling 1-800-553-9727. In other countries, contact your point of purchase. Lexmark, Lexmark with diamond design, MarkNet, MarkVision, Optra, and Prebate are trademarks of Lexmark International, Inc., registered in the United States and/or other countries. Optra Forms and PictureGrade are trademarks of Lexmark International, Inc. Other trademarks are the property of their respective owners. 2002 Lexmark International, Inc. All rights reserved. UNITED STATES GOVERNMENT RESTRICTED RIGHTS This software and documentation are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 and in applicable FAR provisions: Lexmark International, Inc., Lexington, KY 40550.

U.S.A. P/N 12G9119

7. Parts Catalog
How to Use This Parts Catalog
SIMILAR ASSEMBLIES: If two assemblies contain a majority of
identical parts, they are shown on the same list. Common parts are shown by one index number. Parts peculiar to one or the other of the assemblies are listed separately and identified by description. AR: (As Required) in the Units column indicates that the quantity is not the same for all machines. 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 parts description column indicates the part is contained in a parts packet.

Parts Catalog 7-1

Assembly 1: Covers

7-2 Service Manual

AsmIndex 10 Part Numbers 56P0608 56P0607 56P0680 56P0603 56P0604 56P0605 56P0601 56P0602 56P0610 56P0679 56P0600 Units 1 Description Cover Assembly, Rear Door Assembly, Rear Exit Flap, Paper Holder Cover Assembly, Duct Cover Assembly, Top Cover Assembly, Right Cover Assembly, Front, with Display (without logo) Cover Assembly, Front with Display (with logo) Cover Assembly, MPF Door Overlays, Language Cover Assembly, Left

Parts Catalog 7-3

Assembly 2: Multipurpose Feeder (MPF)

7-4 Service Manual

AsmIndex 5 Part Numbers 56P0612 56P0611 56P0615 56P0613 56P0614 Units 1 Description Housing Assembly, Upper (MPF) Housing Assembly, Lower (MPF) Cap, MPF Paper Feed Cover Assembly, Roller (MPF) Gear, MPF Paper Pick

Parts Catalog 7-5

Assembly 3: Charging

7-6 Service Manual

AsmIndex 7 Part Numbers 56P0640 56P0668 56P0669 56P0642 56P0643 56P0644 56P0641 Units 1 Description Roll, Charge Parts Pack, (Screws and ERings) Hinge, Pivot (quantity 2) Guide Assembly, Right Assembly, Transfer Roll Bearings, Transfer Roll Guide Assembly, Left

Parts Catalog 7-7

Assembly 4: Electronics and Cables

7-8 Service Manual

AsmIndex 2, 7, 8, 9 Part Numbers 56P0626 56P0627 56P0663 Units 1 Description Power Supply, 110 V Power Supply, 220 V Cable Assembly, Main Harness Locations: 2. HVPS 7. Fan 8. LVPS Power 9. LVPS Control NS PaperIn, Duplex 11 56P0628 56P0641 56P0650 56P0630 56P0617 56P0619 56PPS, High Volt Guide Assembly, Left Cable Assembly, LVPS to Fuser Fan, Cooling Card Assembly, RIP Card Assembly, Network RIP Cable Assembly, Printhead

Parts Catalog 7-9

Assembly 4 (cont.): Electronics and Cables

7-10 Service Manual

AsmIndex and and 16 NS NS 56P0616 56P0653 56P0631 56P0617 56P0619 56P0664 56P0652 56P0682 56P0665 56P0666 56P0645 56P0649 56PPart Numbers 56P0624 56P0621 56P0625 Units 1 Description Cable Assembly, Cover Switch Cable Assembly, Operator Panel Switch, Interlock Cover Sensor and Cable Included with P/N 56P0611 (lower MPF housing) Solenoid, Paper Feed Sensor, Toner Level Cable Assembly, Drawer Card Assembly, RIP Card Assembly, Network RIP Cable Assembly, Output Full (and Fuser Exit) Sensor, Smart Button Sensor Cable, Output Full Connector, 3Pin Connector, 2Pin Sensor, Photo Cable Assembly, Fuser Exit Cable Assembly, Motor

Parts Catalog 7-11

This page left intentionally blank.

7-12 Service Manual

AsmIndex NS Part Numbers 70G0478 Units 1 Description Power Cord, Bolivia, Canada, Caribbean Countries, Columbia, Costa Rica, Dominican Republic, Equador, El Salvador, Guatemala, Honduras, Japan, Mexico, Nicaragua, Peru, Panama, Puerto Rico, Saudi Arabia, Taiwan, The Virgin Islands, Venezuela, US, APLV Power Cord, Bahrein, Cyprus, Iraq, Ireland, Kuwait, Oman, Qatar, UAE, UK, Yemen, (HV) Power Cord, Austria, Belgium, Bosnia, Bulgaria, Catalan, Czech, Croatia, Egypt, Albania (Euro English and other East), Finland, France, Germany, Greece, Hungary, Iceland, Iran, Italy, Jordan, Lebanon, Macedonia, Netherlands, Norway, Paraguay, Poland, Portugal, Romania, Russia, and CIS, Slovak Countries, Slovenia, Spain, Sweden, Syria, Turkey, Yugoslavia (Serbia and Montenegro)(HV) Power Cord, Israel (HV) Power Cord, Switzerland (HV) Power Cord, Lybia, Pakistan, South Africa (HV) Power Cord, Chile, Uruguay (HV) Power Cord, Denmark (HV) Power Cord, PR China (HV) Power Cord, Brazil (LV) Power Cord, Argentina Power Cord, U.S. (HV) RPQ

1339528

1339529
NS NS NS NS NS NS NS NS NS
1339534 43H11D0330 1339520

Parts Catalog 7-13

Assembly 5: Paper Feed

7-14 Service Manual

AsmIndex 11* 14* 15* 16* 17 Part Numbers 56P0677 56P0651 56P0645 56P0618 56P0656 56P0655 56P0657 56P0654 56P0634 56P0693 56P0633 56P0632 56P0638 56P0637 56P0635 56P0636 56P0639 Units 1 Description Flags, Stack Control Assembly, Duplex Sensor, Photo Spring, DRoll Roll, Paper Feed Bracket, Paper Sensor Assembly, Paper Feed Plate Assembly Gear, Paper Feed Roller Asm., Reference Backup (Top Front and Rear) Assembly, Drive Motor Assembly, Main Drive Coupling, Cartridge Drive, Ratchet Assembly, Motor Gears, Spur Guide, Link
* Order a lubricant to use with these gears, P/N 99A0394, (FRU, Nyogel 744). See page 4-3 for more information.

Parts Catalog 7-15

Assembly 6: Frame

7-16 Service Manual

AsmIndex Part Numbers 56P0606 56P0623 56P0629 56P0662 56P0661 56P0668 56P0609 56P0667 56P0660 56P0659 56P0672 56P0658 Units Description Duct, Air Assembly, Printhead Assembly, Cartridge Contacts (quantity 5) Feet, Base Damper, Tray Parts Pack, (Screws and ERings) Assembly, Tray 1 Latch, Door (Qty. 3) Roller, Paper Guide Bracket, Shutter Bracket, BodyTray Guide, Entrance

Parts Catalog 7-17

Assembly 7: Fuser

7-18 Service Manual

AsmIndex Part Numbers 56P0648 56P0671 56P0673 56P0676 56P0646 56P0647 Units Description Assembly, Fuser (110 V) Assembly, Fuser (220 V) Fuser Assembly, Paper Guide Spring, Fuser Exit Lamp, Fuser (110 V) Lamp, Fuser (220 V)

Parts Catalog 7-19

Assembly 8: Sensors

7-20 Service Manual

Assembly 8: Sensors and Locations
AsmIndex 9 15, 8 Part Numbers 56P0645 Units 1 Description Sensor, Photo Locations: 1. Paper Path Exit Flag 2. Paper Path below Cartridge 3. Paper Path Duplex 4. Paper Path MPF 5. Paper Path below Cartridge 8. Fuser Exit Sensor 2, 7 56P0655 56P0653 56PBracket, Paper Sensor Sensor, Toner Level Sensor, Smart Button

Parts Catalog 7-21

Assembly 9: Options

7-22 Service Manual

AsmIndex NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS Part Numbers 56P0674 56P0609 56P0675 56P0678 56P0694 56P0695 56P0696 56P0697 56P0698 56P0699 99A1757 99A1758 99A1759 99A1774 99A1683 99A1684 99A1685 99A1686 56P1248 56P1250 l56P1251 12G9833 12G9832 12G9831 12G9830 99A1427498 12A2405 Units 1 Description Drawer Assembly, 250Sheet Tray, 250Sheet Drawer Assembly, 500Sheet Tray, 500Sheet DIMM, 4MB SDRAM DIMM, 8MB SDRAM DIMM 16MB SDRAM DIMM, 32MB SDRAM DIMM, 64MB SDRAM DIMM, 128MB SDRAM DIMM, 2MB Flash DIMM, 4MB Flash DIMM, 8MB Flash DIMM, 16MB Flash DIMM, Optra Forms 2MB Flash DIMM, Optra Forms 4MB Flash DIMM, Optra Forms 8MB Flash DIMM, Optra Forms 16MB Flash DIMM, Japanese 8MB Font DIMM, Simplified Chinese Font DIMM, Traditional Chinese Font MarkNet X2011e Ethernet 10/100 BaseTX MarkNet X2012e Ethernet 10/100 BaseTX/10Base2 MarkNet X2031e Ethernet 10/100 BaseTX MarkNet X2030t TokenRing Adapter, External Serial Cable, HighSpeed Bidirectional Parallel (10 ft) Cable, HighSpeed Bidirectional Parallel (20 ft) Cable, USB 2Meter