HP LaserJet Pro 400 M425 MFP Service Manual
Contents
1. Chapter 2 Parts and diagrams Table 2 18 Alphabetical parts list continued Description Part number Table and page Document feeder pickup roller CF288 60015 Scanner and document feeder on page 83 Document feeder separation pad CF288 60021 Scanner and document feeder on page 83 Document feeder separation roller CF288 60016 Scanner and document feeder on page 83 Duplexing paper feed assembly RM1 9153 000CN Internal components 5 of 5 on page 79 Engine controller assembly DC controller PCA 110V Engine controller assembly DC controller PCA 220V RM1 9308 O00CN RM1 9309 000CN PCA locations on page 81 PCA locations on page 81 Engine controller assembly DC controller 110V RM1 9308 O00CN Internal components 5 of 5 on page 79 Engine controller assembly DC controller 220V RM1 9309 000CN Internal components 5 of 5 on page 79 Fan RK2 2276 000CN Internal components 4 of 5 on page 77 Fax PCA all countries regions except Europe CF206 60001 PCA locations on page 81 Fax PCA Europe CF207 60001 PCA locations on page 81 Formatter PCA CF229 60001 PCA locations on page 81 Formatter PCA China only CF229 69001 PCA locations on page 81 Fuser 110V RM1 8808 000CN Internal components 1 of 5 on page 71 Fuser 220V RM1 8809 000CN Internal components 1 of 5 on pag2. Part Part number Type size Toner cartridge CF280A standard Black toner cartridge CF280X extended Paper feeder CF406A 500 sheet Tray 3 USB 2 0 cable C6518A 2 meter standard A to B cable Whole unit replacement part numbers y NOTE Whole unit replacement products include the formatter PCA 62 Chapter 2 Parts and diagrams ENWW ENWW Table 2 4 Whole unit replacement part numbers Item HP LaserJet Pro 400 MFP M425dn HP LaserJet Pro 400 MFP M425dw Description 110v WUR NAR TW Part number CF286 69001 exchange 220v WUR EMEA 220v WUR CN MY CF286 69002 exchange CF286 67059 replace 220v WUR AP LAR CF286 69003 exchange 220v WUR CL AR CF286 69004 exchange 110v WUR BR 110v WUR NAR TW CF286 69005 exchange CF288 69001 exchange 220v WUR EMEA CF288 69002 exchange 220v WUR CN MY CF288 67059 replace 220v WUR AP LAR 220v WUR CL AR CF288 69003 exchange CF288 69004 exchange 110v WUR BR CF288 69005 exchange Order parts by authorized service providers 63 How to use the parts lists and diagrams The figures in this chapter show the major subassemblies in the product and their component parts A parts list table follows each exploded view assembly diagram Each table lists the item number the associated part number and the description of each part If a part is not listed in the table then it is not a field repl
3. 72 Table 2 9 Internal components 2 of 5 Description Part number Main motor assembly RM1 9042 000CN Bushing RC2 8263 000CN Separation pad multipurpose tray RL1 2115 000CN Bushing RC2 6131 000CN Paper pickup gear assembly RM1 7360 000CN Paper pickup roller assembly RM1 9168 000CN ENWW Internal assemblies 73 Figure 2 6 Internal components 3 of 5 A13 ENWW Chapter 2 Parts and diagrams 74 Table 2 10 Internal components 3 of 5 Description Part number Cable flexible flat RK2 4452 000CN Paper feed guide assembly RM1 9122 000CN Laser scanner assembly RM1 9135 000CN Registration roller assembly RM1 8806 000CN Transfer roller assembly RM1 9175 000CN Sensor assembly RM1 8807 000CN ENWW Internal assemblies 75 Figure 2 7 Internal components 4 of 5 SYA lt ENWW Chapter 2 Parts and diagrams 76 Table 2 11 Internal components 4 of 5 Description Part number Fan RK2 2276 000CN Connecting PCA RM1 9114 000CN Solenoid Tray 1 RK2 2731 000CN Separation pad holder assembly Tray 2 RM1 7365 000CN Cassette assembly Tray 2 RM1 9137 000CN Pickup roller multipurpose tray Tray 1 RL1 3307 000CN Multipurpose tray pickup gear assembly RM1 9127 000CN ENWW Internal assemblies 77 Figure 2 8 Internal components 5 of 5 DQ DN ASe ENWW Chapter 2 Parts and diagrams 78 Tabl
4. Figure 1 79 Remove the optional paper feeder right cover I Optional paper feeder driver PCA 1 Remove the right cover 56 Chapter I Removal and replacement ENWW 2 On the right side of the unit remove one screw callout 1 release one tab callout 2 from the driver PCA cover callout 3 and then slide the PCA cover to the right to remove it Figure 1 80 Remove the optional paper feeder driver PCA 1 of 2 3 Disconnect three connectors callout 1 and then remove one screw callout 2 to remove the driver PCA Figure 1 81 Remove the optional paper feeder driver PCA 2 of 2 Optional paper feeder paper sensor PCA 1 Remove the right cover ENWW Removal and replacement procedures 57 2 On the right side of the unit remove one screw callout 1 release one tab callout 2 from the driver PCA cover callout 3 and then slide the PCA cover to the right to remove it Figure 1 82 Remove the optional paper feeder paper sensor PCA 1 of 3 3 On the driver PCA disconnect one connector callout 1 Figure 1 83 Remove the optional paper feeder paper sensor PCA 2 of 4 58 Chapter I Removal and replacement ENWW 4 At the front of the paper feeder remove two screws callout 1 remove the two plastic posts callout 2 and then lift the metal cover callout 3 off the paper feeder Figure 1 84 Remove the optional paper feeder paper sensor PCA 3 of 4 5 Remove one screw callout 1 and then relea
5. e Control panel See Control panel on page 15 e Right cover See Right cover on page 17 e Rear cover rear door and duplex paper feed assembly See Rear cover rear door and feed assembly on page 20 e Top cover assembly See Top cover on page 18 e Fuser See Fuser assembly and paper feed guide on page 28 e Engine controller assembly See Engine controller assembly DC controller PCA on page 41 Open the toner cartridge door and the rear jam access door At the rear of the product release the cables callout 1 from the cable guides callout 2 and then pull out the paper feed assembly callout 3 Figure 1 50 Remove the main motor 1 of 4 ee Removal and replacement procedures 37 4 Release the cables callout 1 from the cable guides callout 2 remove one screw callout 3 and then remove the cable guide callout 4 Figure 1 51 Remove the main motor 2 of 4 5 Remove one screw callout 1 remove the duct callout 2 and then disconnect one connector callout 3 Figure 1 52 Remove the main motor 3 of 4 gt i D 38 Chapter I Removal and replacement ENWW 6 Remove three black screws callout 1 and one silver screw callout 2 release two tabs callout 3 and then remove the main motor callout 4 and the cable guide callout 5 together Figure 1 53 Remove the main motor 4 of 4 JAG 2 Reinstallation tip Remember the location from where you removed
6. product documents 62 supplies and accessories 62 toner cartridge 62 whole unit replacement 63 P panels parts list 68 paper pickup gear assembly replacing 53 part number toner cartridge 62 whole unit replacement 63 parts 61 assemblies O cover locations 68 door locations 68 internal assembly locations 70 panel locations 68 screws 3 pliers required 3 post service tests 4 preservice checklist 3 print quality test 4 R rear cover removing 20 rear door removing 20 removing parts cautions for 2 checklists 3 duplex paper feed assembly 20 engine controller assembly 41 formatter PCA 48 front doors 22 fuser 28 left cover 13 order of 5 rear cover 20 rear door 20 right cover 17 Index 99 tools required 3 top cover 18 replacing duplexing paperfeed assembly 31 main motor 37 paper pickup gear assembly 53 parts 2 right cover removing 17 rollers pickup and separation removing 6 S screwdrivers required 3 screws replacing 2 service tools required 3 static precautions 2 supplies ordering 62 T tests post service 4 print quality 4 tips iii toner cartridge ordering 62 partnumber 62 tools required 3 top cover removing 18 Tray 1 door removing 22 W warnings iii 100 Index ENWW 2012 Hewlett Packard Development Company L P www hp com CF286 90979
7. release the tab callout 1 at the center of the gear and then remove the gear callout 2 Figure 1 76 Remove the paper pickup gear assembly 29 Reinstallation tip Press and hold back the gear arm callout 3 when reinstalling the pickup gear Document feeder assembly 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 e Scanner assembly See Scanner assembly on page 13 54 Chapter I Removal and replacement ENWW 2 On the underside of the scanner assembly remove two T 8 torx screws callout 1 and then remove the cable cover callout 2 Figure 1 77 Remove the document feeder 1 of 2 3 Thread the cables back up through the scanner bed and then use a small flat blade screwdriver to release the tabs callout 1 at the front of the document feeder assembly hinges to remove the assembly from the scanner bed Figure 1 78 Remove the document feeder 2 of 2 Optional paper feeder Tray 3 When replacing any parts on the optional paper feeder Tray 3 remove the tray cassette before removing any other parts ENWW Removal and replacement procedures 55 NOTE To view the procedures for removing the optional paper feeder pickup roller or separation pad see Rollers on page 6 Optional paper feeder right cover A Starting at the back of the unit release six tabs callout 1 and then slide the right cover toward the front of the unit to remove it
8. 2 8 Table 2 9 Table 2 10 Table 2 11 Table 2 12 Table 2 13 Table 2 14 Table 2 15 Table 2 16 Table 2 17 Table 2 18 Table 2 19 ENWW Order parts accessories and supplies c cccecsesceeeeseeeeseteceeeeeeeceeaeeeceeseeeseeseeeeeeeeesseaeeenes 62 Related documentation and software cscrsiactivsainnnnasssairnkosdunled balsinaupandoinguas hbeddacwsenedduanarassared bensound biel 62 SUPPE part ANNES drone tennis 62 Whole unit replacement part numbers ss 63 Assembly locations main unit lt ivaxdticesssimentonsands asandasnsaatsaceinieneatesendsalzbshiasadocadhatgudatwnaasaatesidabs 65 Assembly locations optional paper feeder rrrnrrrronvrnrrrrrrrrrrrrnnnnnrrrrnnrrrrrnnnnnerrennrerrrnnnnserrennn 66 Covers panels and de deter Gan adi 69 Internal components 1 of 5 EEE EE NE 71 Inftermnal components NE NE ER 73 Internal components Croft en xcuetannalipiiezanroe aus snide dahil tienne dauenaivicesavied 75 Internal components 4 of 5 REE EEE 77 Internal components 5 of 5 imire tS oils Tae E 79 FN 81 Scanner and document feeder sic ssosanistacsudracanssacanaensatadsawegrosnealsarshavadivomenaiaieegrasacwalavveanadeens 83 Be AE EE tree deel ea glean eeu 85 Paper feeder main body 1 of 2 lt lt cs sess nette ter tentent 87 Paper feeder main body 2 of 2 ssccczicaveerncarssivadad doneroineacinsioitaranacoudactsdundideateuassacthsaadaenosans tal 89 Alphabetical parts list isecenacansieastn crassa veal et aA AA A E 90 PS g
9. Figure 1 56 Figure 1 57 Figure 1 58 Figure 1 59 Figure 1 60 Figure 1 61 Figure 1 62 Figure 1 63 Figure 1 64 Figure 1 65 Figure 1 66 Figure 1 67 Figure 1 68 Figure 1 69 Figure 1 70 Figure 1 71 Figure 1 72 Figure 1 73 Remove the laser scanner assembly 1 of 2 sin seedet Daae 25 Remove the laser scanner assembly 2 koner ale 26 Remove the registration assembly 1 of 3 27 Remove the registration assembly 2 of 3 27 Remove the registration assembly 3 of lt ne ee ne A Re rar 28 Remove he fuser 1 of 5 einen mure PEEP Eanna bot nent 29 Remove the fuser 2915 Lund ed a a a E a eE ER E E E E oan 29 Remove the fuser BON eue nr Sr Se vant V md nd 30 Remove the fuser 4 of 5 cc ascncenaniroicmwmaretiindinironaindesosrverstantvon Coobibouwaabbnryieiteoaamaddontes 30 Remove the fuser Bordas a a me E E TE 31 Remove the duplex drive assembly 1 of 4 sem aan ins 32 Remove the duplex drive assembly 2 of 4 32 Remove the duplex drive assembly 3 of 4 33 Remove the duplex drive assembly 4 of 4 33 Remove the Tray 1 pickup solenoid 1 of 2 34 Remove the Tray 1 pickup solenoid 2 of 2 35 Remove the duple solenoid aar 36 Remove the main motor 1 of 4 canine nent olatlonn bind oravboruinyedees 37 Remove the main motor 2664 en salad deca Ne Re 38 Remove the main motor Forks nie nc ae ne eee eae 38 Remove the main motor 4 of 4 ccccccccccccsessseceecessvsnsvsrsececceeeeeseccceceececescceecececessssssnsssn
10. Optional paper feeder driver PCA rrrnrrrrnrrnrrrrrnrrnnrrnersrrnnernrrnsersrnsrennnnser 56 Optional paper feeder paper sensor PCA cccccceeeeeeeeeeeeeeeeeeesnseeeeeeesaes 57 2 Ports and dagens sisissirsissesrssidesisiosiocsesiosaroossoissuooe koi ponis unnsa eee eee 61 Order parts by authorized service providers c cccccscicssszscencveincdysavereasunssanetceaaseridasndononarsnsesevasheee 62 Order replacement parts sde eionemenendinenaonournete 62 Related documentation and software ccsccccecessseccesseeeecesseeeeesseeeeeesseeeeeseeeeeenaaes 62 Supplies par MUM Rien EEE E E dore 62 Whole unit replacement part numbers cecccceeeeeeeeeeeeeeeeeeeeeeeeeesencteeeeeesssneeeeeeneees 62 How to Use the pars lists and diagrams sicisiiessncsivvivnnntdevaadeveiensiesn aanshswalduesaVadnviedelntaniinsNekcdaanbnekedas 64 Assembly location Sy ec crie EE 65 Manuset Ge 65 Optional paper feeder nee one Ab ofpiiie dea ious dvceineta aboot 66 Covers panels gt aS NN SR NN RR 68 Internal assemblies Jarre er aent Hedebrant 70 Scanner and document e emilie nn adv 82 he ae 84 500 sheet paper feeder ss 84 Paper feeder covers annee Reine rennes 84 Paper feeder main body 1 of 2 in anses 86 Paper feeder main body 2 of 2 88 vi ENWW Alphabetical parts list ara bance a dl ie a aie na 90 re 94 ENWW vii viii ENWW List of tables Table 2 1 Table 2 2 Table 2 3 Table 2 4 Table 2 5 Table 2 6 Table 2 7 Table
11. assembly CF288 60104 Scanner and document feeder 83 ENWW Input devices 500 sheet paper feeder Paper feeder covers Figure 2 11 Paper feeder covers ENWW Chapter 2 Parts and diagrams 84 Table 2 15 Paper feeder covers Description Part number Cover left RC3 2618 000CN Cover right RM 1 93 16 000CN Cover rear RC3 2621 000CN ENWW Input devices 85 Paper feeder main body 1 of 2 86 Figure 2 12 Paper feeder main body 1 of 2 Al4 oe Chapter 2 Parts and diagrams ENWW Table 2 16 Paper feeder main body 1 of 2 Description Part number Paper pickup gear assembly RM1 7360 000CN Solenoid RK2 0426 000CN ENWW Input devices 87 Paper feeder main body 2 of 2 EN Figure 2 13 Paper feeder main body 2 of 2 ENWW Chapter 2 Parts and diagrams 88 ENWW Table 2 17 Paper feeder main body 2 of 2 Description Paper feeder pickup roller assembly Paper feeder driver PCA Paper feeder 500 sheet cassette Tray 3 Paper feeder separation pad holder assembly Paper feeder paper sensor PCA Part number RM1 9168 000CN RM1 9297 000CN RM1 9313 000CN RM1 6303 000CN RM1 1267 000CN Input devices 89 Alphabetical parts list Table 2 18 Alphabetical parts list Description Part number Table and page Bushing RC2 8263 000CN Internal components 2 of 5 on page 73 Bushing RC2 6131 000CN Internal c
12. discharge A CAUTION Al Some parts are sensitive to electrostatic discharge ESD Look for the ESD reminder when removing product parts Always perform service work at an ESD protected workstation or mat If an ESD workstation or mat is not available ground yourself by touching the sheet metal chassis before touching an ESD sensitive part Protect the ESD sensitive parts by placing them in ESD pouches when they are out of the product 2 Chapter I Removal and replacement ENWW Required tools 2 Phillips screwdriver with a magnetic tip and a 152 mm 6 in shaft length Small flatblade screwdriver Needle nose pliers ESD mat if one is available or ESD strap Penlight optional A CAUTION Always use a Phillips screwdriver callout 1 Do not use a Pozidriv screwdriver callout 2 or any motorized screwdriver These can damage screws or screw threads Figure 1 1 Phillips and Pozidriv screwdriver comparison 1 2 A CAUTION Avoid pulling directly on wires to disconnect wire harness connectors Pull on the plastic body of a connector to avoid damaging the connector wires Types of screws A WARNING Make sure that components are replaced with the correct screw type Using the incorrect screw for example substituting a long screw for the correct shorter screw can cause damage to the product or interfere with product operation Do not intermix screws that are removed from one component with the screws that are rem
13. on page 17 2 On the right side of the product disconnect any connectors callout 1 on the PCA remove one screw callout 2 and then remove the connecting PCA Figure 1 74 Remove the connecting PCA Miscellaneous parts Transfer roller A CAUTION Do not touch the sponge surface of the roller unless you are replacing the roller Skin oils on the roller can cause print quality problems Always wear latex gloves when handling a transfer roller for reinstallation or replacement 1 Open the toner cartridge door and then remove the toner cartridge 52 Chapter I Removal and replacement ENWW In the toner cartridge cavity pull the sheet metal jam plate toward the Tray 1 pickup roller cover callout 1 and hold it release the two tabs of the black locking clip on the rightside bushing callout 2 pull the bushing up and then slide the transfer roller callout 3 to the right and remove it Figure 1 75 Remove the transfer roller s A CAUTION The black locking clip on the right side of the transfer roller shaft is not captive Do not lose the locking clip when you remove the transfer roller Multipurpose MP tray pickup gear assembly 27 NOTE The multipurpose tray is referred to as Tray 1 in user documentation ENWW Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 Removal and replacement procedures 53 2 On the left side of the product
14. on page 89 Internal components 2 of 5 on page 73 RM1 7360 000CN Paper pickup gear assembly Paper feeder main body 1 of 2 on page 87 RM1 7365 000CN Separation pad holder assembly Tray 2 Internal components 4 of 5 on page 77 RM1 8806 000CN Registration roller assembly Internal components 3 of 5 on page 75 RM1 8807 000CN Sensor assembly Internal components 3 of 5 on page 75 RM1 8808 000CN Fuser 110V Internal components 1 of 5 on page 71 RM1 8809 000CN Fuser 220V Internal components 1 of 5 on page 71 RM1 9039 000CN Power button PCA Covers panels and doors on page 69 RM1 9039 000CN RM1 9042 000CN RM1 9114 000CN Power switch PCA Main motor assembly Connecting PCA PCA locations on page 81 Internal components 2 of 5 on page 73 Internal components 4 of 5 on page 77 RM1 9114 000CN Connecting PCA PCA locations on page 81 Numerical parts list 95 Table 2 19 Numerical parts list continued Part number Description Table and page RM1 9122 000CN RM1 9125 000CN RM1 9127 000CN Paper feed guide assembly Switch power button assembly Multipurpose tray pickup gear assembly Internal components 3 of 5 on page 75 Covers panels and doors on page 69 Internal components 4 of 5 on page 77 RM1 9135 000CN Laser scanner asse
15. the product Figure 1 10 Remove the Tray 2 or Tray 3 pickup roller 2 of 2 Tray 2 and optional Tray 3 separation pad 1 Remove the tray cassette from the product 2 Locate the separation pad at the front of the cassette On the separation pad remove two screws callout 1 and then remove the pad from the tray cassette Figure 1 11 Remove the Tray 2 or Tray 3 separation pad ry gear i 10 Chapter I Removal and replacement ENWW Document feeder rollers 1 Open the document feeder cover Figure 1 12 Remove the document feeder rollers 1 of 2 2 On the underside of the document feeder cover use a small flat blade screwdriver to release the tabs callout 1 on the left side of each roller and then pull the rollers out of the cover Figure 1 13 Remove the document feeder rollers 2 of 2 ENWW Removal and replacement procedures 11 Document feeder separation pad 1 Open the document feeder cover Figure 1 14 Remove the document feeder separation pad 1 of 2 2 Locate the separation pad at the end of the document feeder input tray press down on the pad and then slide the pad toward the input tray to remove it from the assembly Figure 1 15 Remove the document feeder separation pad 2 of 2 12 Chapter I Removal and replacement ENWW Covers scanner assembly and control panel Left cover NOTE No tools are necessary to remove this cover However a small flat blade screwdriver might be helpfu
16. 4 24 Chapter I Removal and replacement ENWW Main assemblies Laser scanner assembly WARNING FA ESD sensitive component ACAUTION Do not bend or fold the flat flexible cables FFCs during removal or installation Also do not straighten pre folds in the FFCs You must make sure that all FFCs are fully seated in their connectors Failure to fully seat an FFC into a connector can cause a short circuit in a PCA 1 Remove the following components Tray 2 cassette Lett cover See Left cover on page 13 Scanner assembly See Scanner assembly on page 13 Control panel See Control panel on page 15 Right cover See Right cover on page 17 Top cover assembly See Top cover on page 18 2 Open the toner cartridge door and the rear jam access door 3 On the top of the product remove the antistatic foam pad and disconnect one connector callout 1 and then disconnect the flat cable callout 2 Figure 1 33 Remove the laser scanner assembly 1 of 2 ENWW Removal and replacement procedures 25 4 Remove four screws callout 1 and then remove the laser scanner assembly Figure 1 34 Remove the laser scanner assembly 2 of 2 Registration assembly 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 e Scanner assembly See Scanner assembly on page 13 e Control panel See Control panel on page 15 e Right cover See Right cover on pag
17. Ap LASERJET PRO 400 MFP Repair Manual Ap HP LaserJet Pro 400 MFP M425 Series Repair Manual Copyright and License Trademark Credits 2012 Copyright Hewlett Packard Microsoft Windows Windows XP Development Company L P and Windows Vista are U S registered trademarks of Microsoft Corporation 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 CF286 90979 Edition 1 4 2012 Conventions used in this guide Gi TIP Tips provide helpful hints or shortcuts APA psp p 2 NOTE Notes provide important information to explain a concept or to complete a task A CAUTION Cautions indicate procedures that you should follow to avoid losing data or damaging the product A WARNING Warnings alert you to specific procedures that you should follow to avoid personal injury catastrophic loss of data or extensive damage to the product ENWW iv Conventions used in this guide ENWW Table of contents 1 Removal and replacement sssssssicsssssone
18. a damp cloth 4 Chapter I Removal and replacement ENWW Parts removal order Use the following diagram to determine which parts must be removed before removing other parts Figure 1 2 Parts removal order Component Toner cartridge Tray 1 pickup roller Tray 1 pickup gear assembly Tray 2 3 separation roller Document feeder separation pad Left cover Control panel Top cover Cartridge door and front cover assembly Laser scanner assembly Fuser assembly and paper feed guide Tray 1 solenoid Duplex solenoid Formatter PCA Wireless PCA wireless models Power switch PCA Optional paper feeder right cover Optional paper feeder paper sensor PCA ENWW Remove Left cover Tray 2 3 cassette Tray 2 cassette Left cover Left cover Left cover Left cover Left cover Left cover Left cover Left cover Tray 3 right cover Scanner assembly Scanner assembly Control panel Scanner assembly Control panel Scanner assembly Control panel Scanner assembly Control panel Scanner assembly Control panel Scanner assembly Control panel Wireless PCA wireless models Scanner assembly Control panel Remove Remove Right cover Right cover Right cover Right cover Right cover Right cover Right cover Remove Remove Remove Remove Top cover Rear cover and feed assembly Rear cover and feed assembly Duplex d
19. acement unit FRU A CAUTION Be sure to order the correct part When looking for part numbers for electrical components pay careful attention to the voltage that is listed in the description column Doing so will ensure that the part number selected is for the correct product model Ey NOTE In this manual the abbreviation PCA stands for printed circuit board assembly Components described as a PCA might consist of a single circuit board or a circuit board plus other parts such as cables and sensors 64 Chapter 2 Parts and diagrams ENWW Assembly locations Main unit Figure 2 1 Assembly locations main unit Table 2 5 Assembly locations main unit Item Description Item Description Cartridge door assembly includes 8 Control panel multipurpose tray Tray 1 2 Document feeder 9 Power switch 3 Scanner assembly 10 Top cover 4 Rear cover assembly includes 11 Tray 2 cassette rear output door duplex cover and duplexing paper feed assembly 5 Left cover includes DIMM door 12 Front cover 6 Formatter PCA ports 13 Walkup USB port 7 Right cover ENWW Assembly locations 65 Optional paper feeder p 47 LIRA V ef VW gt N N A fl N VAN NN VNS N CA VW DN YA 4 g AQ Figure 2 2 Assembly locations optional paper feeder 6 Assembly locations optional paper feeder Table 2 Description Description Item Tray 3 cassette Positioning p
20. allout 1 on the rear edge of the cover and then use a small flat blade screwdriver to release the tab callout 2 at the top edge of the cover Figure 1 22 Remove the right cover 4 With the back and top edges loose carefully slide the cover toward the front of the product and then remove it ENWW Removal and replacement procedures 17 Top cover 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 e Scanner assembly See Scanner assembly on page 13 e Control panel See Control panel on page 15 e Right cover See Right cover on page 17 2 Open the toner cartridge door and the rear jam access door 3 On the left side of the product disconnect one flat flexible cable callout 1 from the formatter Figure 1 23 Remove the top cover assembly 1 of 3 18 Chapter I Removal and replacement ENWW 4 On the right side and the rear of the product remove three screws callout 1 Figure 1 24 Remove the top cover assembly 2 of 3 5 On the top cover assembly remove four screws callout 1 f 3 Figure 1 25 Remove the top cover assembly 3 o ie 6 Lift the top cover assembly off of the product to remove it ENWW Removal and replacement procedures 19 Rear cover rear door and feed assembly A CAUTION The fuser can be hot while the product is in use Wait for the fuser to cool before working in that area 1 Remove the following componen
21. controller assembly to cool 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 e Scanner assembly See Scanner assembly on page 13 e Control panel See Control panel on page 15 e Right cover See Right cover on page 17 e Rear cover rear door and feed assembly See Rear cover rear door and feed assembly on page 20 e Top cover assembly See Top cover on page 18 ENWW Removal and replacement procedures 41 2 At the rear of the product disconnect six connectors callout 1 Figure 1 57 Remove the engine controller assembly 1 of 9 3 Remove one screw callout 1 and then remove the paper feed guide callout 2 42 Chapter I Removal and replacement ENWW 4 Disconnect seven connectors callout 1 Figure 1 59 Remove the engine controller assembly 3 of 9 5 Release the cables callout 1 from the cable guides callout 2 Figure 1 60 Remove the engine controller assembly 4 of 9 sm BE ENWW Removal and replacement procedures 43 6 On the right side of the product remove one screw callout 1 Figure 1 61 Remove the engine controller assembly 5 of 9 lt Tg 7 On the left side of the product disconnect the two cartridge door interlock switch connectors callout 1 release the cables callout 2 from the cable guide callout 3 and then disconnect one connector callout 4 and one flat cable callout 5 on the format
22. document feeder separation pad 1 of 2 12 Remove the document feeder separation pad 2 of 2 12 Remove the left cover sis nn aan noeud 13 Remove the scanner assembly 1 of 2 14 Remove the scanner assembly 2 of 2 sciniccsssssrnensdsunccassransedndbastindericacieaundnbadwuneoadtedeacnaseaabs 14 Remove the control panel 1 of 3 sscccesansetavetecnnd eves tanaesriauanssveviteatedsvertersusvngnaodbecnataniyhtusugneen 15 Remove the control panel 2 ali items 16 Remove the control panel 3 of 5 estiment entree 16 Remove the right cover NE EE anata 17 Remove the top cover assembly 1 of 3 18 Remove the top cover assembly 2 of 3 19 Remove the top cover assembly 3 of 3 19 Remove the rear cover rear door and feed assembly 1 of 3 20 Remove the rear cover rear door and feed assembly 2 of 3 21 Remove the rear cover rear door and feed assembly 3 of 3 21 Remove the cartridge door assembly and front cover 1 of 4 22 Remove the cartridge door assembly and front cover 2 of 4 25 Remove the cartridge door assembly and front cover 3 of 4 23 Remove the cartridge door assembly and front cover 4 of 4 24 xi xii Figure 1 33 Figure 1 34 Figure 1 35 Figure 1 36 Figure 1 37 Figure 1 38 Figure 1 39 Figure 1 40 Figure 1 41 Figure 1 42 Figure 1 43 Figure 1 44 Figure 1 45 Figure 1 46 Figure 1 47 Figure 1 48 Figure 1 49 Figure 1 50 Figure 1 51 Figure 1 52 Figure 1 53 Figure 1 54 Figure 1 55
23. e 17 e Rear cover rear door and feed assembly See Rear cover rear door and feed assembly on page 20 e Top cover assembly See Top cover on page 18 2 Open the toner cartridge door and the rear jam access door 26 Chapter I Removal and replacement ENWW ENWW On the left side of the product release one tab callout 1 and then remove the gear Figure 1 35 Remove the registration assembly 1 of 3 Inside the product chassis on the formatter side release two tabs callout 1 and then lift up on the guide callout 2 to release it and remove it from the product Figure 1 36 Remove the registration assembly 2 of 3 LI a Removal and replacement procedures 27 5 Remove four screws callout 1 and then remove the gear cover callout 2 Figure 1 37 Remove the registration assembly 3 of 3 L NN J TET CLs d 1 ge 6 Slightly raise the right end of the assembly and then slide it to the right and lift it up to release the assembly callout 3 and remove it from the product 24 Reinstallation tip Insert the left end of the assembly first to reinstall the assembly Fuser assembly and paper feed guide A CAUTION The fuser might be hot Allow enough time for the fuser to cool after the product power is turned off Ey NOTE The toner cartridge door assembly should be in the closed position when the fuser is removed to make sure that the fuser drive gear is correctly aligned for rein
24. e 2 12 Internal components 5 of 5 Description Part number Engine controller assembly DC controller 110V RM1 9308 000CN Engine controller assembly DC controller 220V RM1 9309 000CN Duplexing paper feed assembly RM1 9153 000CN Reverse drive assembly RM1 9157 000CN Solenoid duplex RK2 2733 000CN ENWW Internal assemblies 79 Figure 2 9 PCA locations y ENWW Chapter 2 Parts and diagrams 80 ENWW Table 2 13 PCA locations Description Formatter PCA Formatter PCA China only Wireless PCA HP LaserJet M425dw model only Wireless PCA holder not pictured Engine controller assembly DC controller PCA 110V Engine controller assembly DC controller PCA 220V Connecting PCA Power switch PCA Universal serial bus USB PCA Fax PCA all countries regions except Europe Fax PCA Europe Part number CF229 60001 CF229 69001 CF1150 7940 CF286 40014 RM1 9308 000CN RM1 9309 000CN RM1 9114 000CN RM1 9039 000CN CF368 60001 CF206 60001 CF207 60001 Internal assemblies 81 Scanner and document feeder Figure 2 10 Scanner and document feeder ENWW Chapter 2 Parts and diagrams 82 Table 2 14 Scanner and document feeder Description Part number CF288 60015 Document feeder pickup roller CF288 60016 Document feeder separation roller CF288 60021 Document feeder separation pad Document feeder assembly CF288 6001 1 Scanner
25. e 71 Laser scanner assembly RM1 9135 000CN Internal components 3 of 5 on page 75 Lever power supply button RC3 2545 000CN Covers panels and doors on page 69 Main motor assembly RM1 9042 000CN Internal components 2 of 5 on page 73 Multipurpose tray pickup gear assembly Paper feed guide assembly Paper feeder 500 sheet cassette Tray 3 Paper feeder driver PCA RM1 9127 000CN RM1 9122 000CN RM1 9313 000CN RM1 9297 000CN Internal components 4 of 5 on page 77 Internal components 3 of 5 on page 75 Paper feeder main body 2 of 2 on page 89 Paper feeder main body 2 of 2 on page 89 Alphabetical parts list 91 Table 2 18 Alphabetical parts list continued Description Paper feeder paper sensor PCA Part number RM1 1267 000CN Table and page Paper feeder main body 2 of 2 on page 89 Paper feeder pickup roller assembly RM1 9168 000CN Paper feeder main body 2 of 2 on page 89 Paper feeder separation pad holder assembly RM1 6303 000CN Paper feeder main body 2 of 2 on page 89 Paper pickup gear assembly RM1 7360 000CN Internal components 2 of 5 on page 73 Paper pickup gear assembly RM1 7360 000CN Paper feeder main body 1 of 2 on page 87 Paper pickup roller assembly RM1 9168 000CN Internal components 2 of 5 on page 73 Pickup roller multipurpo
26. e 73 RC2 8263 000CN Bushing Internal components 2 of 5 on page 73 RC3 2532 000CN RC3 2533 000CN RC3 2545 000CN RC3 2618 000CN Cover inner front Cover outer front Lever power supply button Cover left Covers panels and doors on page 69 Covers panels and doors on page 69 Covers panels and doors on page 69 Paper feeder covers on page 85 RC3 2621 000CN Cover rear Chapter 2 Parts and diagrams Paper feeder covers on page 85 ENWW Table 2 19 Numerical parts list continued Part number Description Table and page RK2 0426 000CN Solenoid Paper feeder main body 1 of 2 on page 87 RK2 2276 000CN Fan Internal components 4 of 5 on page 77 RK2 2731 000CN Solenoid Tray 1 Internal components 4 of 5 on page 77 RK2 2733 000CN Solenoid duplex Internal components 5 of 5 on page 79 RK2 4452 000CN Cable flexible flat Internal components 3 of 5 on page 75 RL1 2115 000CN Separation pad multipurpose tray Internal components 2 of 5 on page 73 RL1 3307 000CN RM1 1267 000CN RM1 6303 000CN RM1 7360 000CN Pickup roller multipurpose tray Tray 1 Paper feeder paper sensor PCA Paper feeder separation pad holder assembly Paper pickup gear assembly Internal components 4 of 5 on page 77 Paper feeder main body 2 of 2 on page 89 Paper feeder main body 2 of 2
27. e transfer toller ras ns Rue 53 Remove the paper pickup gear assembly rrrrrrrrrnvrvrrnrrrrrrrn rn rnnnnrrrrrnnnnnnnrnserrrrnnnnnnnnserernnnnn 54 Remove the document feeder 1 of 2 55 Remove the document feeder 2 of 2 avansere kabaret 55 Remove the optional paper feeder right cover cccccccceeseceeeenceeceneeeeeeeeeeeeeseeeeetaseeetteeeees 56 Remove the optional paper feeder driver PCA 1 of 2 57 Remove the optional paper feeder driver PCA 2 of 2 57 Remove the optional paper feeder paper sensor PCA 1 of 3 58 Remove the optional paper feeder paper sensor PCA 2 of 4 58 Remove the optional paper feeder paper sensor PCA 3 of 4 59 Remove the optional paper feeder paper sensor PCA 4 of 4 59 Assembly locations main unit saved 65 Assembly locations optional paper feeder saa 66 Covers panels and AOGKS s 2siisorsissreancndewssan eons chuewdrrialsatnateorioorvorkolpxinnejonsadaen ante on dte 68 Internal components 1 of seere al Ars ne 70 Internal components Tverr rene 72 Internal components 3 of 5 i tnasaieh oamientinrs onphouks am dhan de ehare torre td dren kuren 74 Internal components 4 of kassa eee de 76 Internal components Sr online cn ee RR 78 POA locations sise raa aa e aA noun cou n en minette emne 80 Scanner and document Feda ae 82 Paper feeder covers at 84 Paper feeder main body 1 of 2 c ssssaiucisavineworsvvosataistcenes duals duster evant overtoutonelboareniens ont 86 Paper feeder main bod
28. ee Scanner assembly on page 13 Control panel See Control panel on page 15 Right cover See Right cover on page 17 Top cover assembly See Top cover on page 18 2 Open the toner cartridge door and the rear jam access door ENWW Removal and replacement procedures 31 3 On the right side of the product remove the grounding spring callout 1 disconnect five connectors callout 2 from the connecting PCA release two tabs callout 3 and then remove the fan from the holder Figure 1 43 Remove the duplex drive assembly 1 of 4 4 In the fan holder remove one screw callout 1 release one tab callout 2 and then remove the holder from the product Figure 1 44 Remove the duplex drive assembly 2 of 4 32 Chapter I Removal and replacement ENWW 5 Remove two screws callout 1 unroute the cables from the guides callout 2 and then remove the fan cable guide Figure 1 45 Remove the duplex drive assembly 3 of 4 6 Remove three screws callout 1 and then pull the drive assembly callout 2 away from the product Figure 1 46 Remove the duplex drive assembly 4 of 4 m lt A A CAUTION Some of the gears and the solenoid arm are not captive Do not lose the gears or the arm when you remove the assembly ENWW Removal and replacement procedures 33 Solenoids Tray 1 solenoid 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 2 Ope
29. ement ENWW On the left side of the product remove two screws callout 1 on the USB PCA and then pull the PCA away from the product Remove the USB PCA 1 of 2 Disconnect the connector callout 1 on the back of the PCA Remove the USB PCA 2 of 2 ENWW Removal and replacement procedures 47 Formatter PCA WARNING ESD sensitive component 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 e Wireless PCA wireless models only See Wireless PCA on page 48 2 On the left side of the product disconnect any connectors and flat cables callout 1 on the formatter and then remove six screws callout 2 Figure 1 68 Remove the formatter Wireless PCA Ey NOTE This section applies to wireless models only The wireless PCA is located at the top of the formatter PCA 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 48 Chapter I Removal and replacement ENWW 2 On the left side of the product pull the lower left hand corner of the PCA callout 1 to disconnect the connector on the back of the PCA and then pull the PCA away from the product Figure 1 69 Remove the wireless PCA 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 2 Disconnect one flat flexible cable callout 1 from the fax PCA and then remove four screws callout 2 to re
30. er shaft Figure 1 5 Remove the MP tray separation pad 2 of 5 ENWW Removal and replacement procedures 7 5 Move the pickup roller shaft to the left to free the right end of the shaft from the holder and then remove the pickup roller shaft assembly to expose the separation pad Figure 1 6 Remove the MP tray separation pad 3 of 5 29 Reinstallation tip The spring at the right end of the shaft is not captive and might fall off during this process Make sure that the spring is positioned correctly when reinstalling as shown in the following figure Figure 1 7 Remove the MP tray separation pad 4 of 5 8 Chapter I Removal and replacement ENWW 6 Pull up on the top edge of the separation pad to release it from the product Figure 1 8 Remove the MP tray separation pad 5 of 5 24 Reinstallation tip When reinstalling the pickup roller shaft assembly make sure that the flat part of the pickup roller is directly over the separation pad Tray 2 and optional Tray 3 pickup roller 1 Remove the tray cassette from the product 2 Locate the pickup roller at the top of the cassette cavity On the left roller holder release the tab callout 1 and then turn the holder away from you Figure 1 9 Remove the Tray 2 or Tray 3 pickup roller 1 of 2 ENWW Removal and replacement procedures 9 3 Push the pickup roller to the left to release the right side roller and then pull the roller out of
31. es 39 Remove the tant On 2 nn te ne et elle de Las ae 40 Remove Ihe fan sormr DR 40 Allow the engine controller assembly to cool ceeescecceeeceeeeceeeeeeeeeeeeeeeeseenetaeeeeeeseeeeeeeeeeees 41 Remove the engine controller assembly 1 of 9 42 Remove the engine controller assembly 2 of 9 42 Remove the engine controller assembly 3 of 9 43 Remove the engine controller assembly 4 of 9 43 Remove the engine controller assembly 5 of 9 44 Remove the engine controller assembly 6 of 9 44 Remove the engine controller assembly 7 of 9 45 Remove the engine controller assembly 8 of 9 45 Remove the engine controller assembly 9 of 9 46 Remove he USB PCA Tol 2 hs ss nn ekke 47 Remove the USB FA Pa sosser 47 Remove the formatter sauudsmaksnsdnedktenkuntente ad bua tsansitoli rong boustiduet taney burrkbunounaunnedagees 48 Remove the wireless Parese de eee 49 Remove thefax FA re 49 Remove the power switch PCA 1 of 3 50 Remove the powersvileh PCA 2 O3 tte hante tienne ten te 51 Remove the power switch PCA 3 of 3 Sani nee ce en et 51 ENWW Figure 1 74 Figure 1 75 Figure 1 76 Figure 1 77 Figure 1 78 Figure 1 79 Figure 1 80 Figure 1 81 Figure 1 82 Figure 1 83 Figure 1 84 Figure 1 85 Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 2 7 Figure 2 8 Figure 2 9 Figure 2 10 Figure 2 11 Figure 2 12 Figure 2 13 ENWW Remove thenconnectinig FA sata Sak 52 Remove th
32. et fer aira ea EE ete 94 ENWW List of figures Figure 1 1 Figure 1 2 Figure 1 3 Figure 1 4 Figure 1 5 Figure 1 6 Figure 1 7 Figure 1 8 Figure 1 9 Figure 1 10 Figure 1 11 Figure 1 12 Figure 1 13 Figure 1 14 Figure 1 15 Figure 1 16 Figure 1 17 Figure 1 18 Figure 1 19 Figure 1 20 Figure 1 21 Figure 1 22 Figure 1 23 Figure 1 24 Figure 1 25 Figure 1 26 Figure 1 27 Figure 1 28 Figure 1 29 Figure 1 30 Figure 1 31 Figure 1 32 ENWW Phillips and Pozidriv screwdriver comparison ccsccccceeseceeesteeeeenseeeeesseeeecsseeeeeseeeeeseseeeensaeees 3 P rtsremoval OR de nec aaai 5 r e the MP tray aller tone oinnadenennieieeues 6 Remove the MP tray separation pad 1 of 5 7 Remove the MP tray separation pad 2 of 5 7 Remove the MP tray separation pad 3 of 5 wiisescncecssssnbsnsnuecasnunssanndeteanetnsdeculecsinbbentnondlaanaedsdies 8 Remove the MP tray separation pad 4 of 5 8 Remove the MP tray separation pod 5 of 5 45 secusecsdscvcnedareaadainacdeeasedeneastenet tenes sencctalsanceinacssne 9 Remove the Tray 2 or Tray 3 pickup roller 1 of 2 idees 9 Remove the Tray 2 or Tray 3 pickup roller 2 of 2 10 Remove the Tray 2 or Tray 3 separation pad cccescccceeseeeeeseeeeeeeeeeeeseeeeeecseeeeessneeeetaes 10 Remove the document feeder rollers 1 of 2 11 Remove the document feeder rollers 2 of 2 11 Remove the
33. feed assembly 3 of 3 ENWW Removal and replacement procedures 21 Cartridge door and front cover assembly Ey NOTE The cartridge door assembly includes the cartridge door Tray 1 and the front cover 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 e Scanner assembly See Scanner assembly on page 13 e Control panel See Control panel on page 15 e Right cover See Right cover on page 17 2 Open the toner cartridge door and the rear jam access door 3 Disconnect one connector callout 1 and then disengage the cartridge door assembly link arm callout 3 by releasing two tabs in the pivot joint callout 2 X TIP The link arm releases the fuser pressure lever when the cartridge door is opened Figure 1 29 Remove the cartridge door assembly and front cover 1 of 4 22 Chapter I Removal and replacement ENWW ENWW Remove two screws callout 1 Remove the cartridge door assembly and front cover 2 of 4 Pull the bottom of the assembly up in order to release two hooked tabs callout 1 and then pull the assembly away from the product Remove the cartridge door assembly and front cover 3 of 4 Removal and replacement procedures 23 6 Release two hinge pins callout 1 and then separate the front cover callout 2 from the cartridge door assembly callout 3 Figure 1 32 Remove the cartridge door assembly and front cover 4 of
34. ins fe 2 cs Oo oO o U 8 2 2 ao O ENWW Chapter 2 Parts and diagrams 66 ENWW Assembly locations 67 N FE A NA Y M y m N N r ENWW Covers panels and doors Figure 2 3 Covers panels and doors N AN ANN Chapter 2 Parts and diagrams 68 ENWW Table 2 7 Covers panels and doors Description Cartridge door assembly Cover top Cover rear Cover right Cover left Cover outer front Switch power button assembly Cover inner front Lever power supply button Power button PCA Control panel assembly HP LaserJet M425dn model Control panel assembly HP LaserJet M425dw model Part number RM1 9307 000CN RM1 9303 000CN RM1 9161 000CN RM1 9304 000CN RM1 9305 000CN RC3 2533 000CN RM1 9125 000CN RC3 2532 000CN RC3 2545 000CN RM1 9039 000CN CF286 60601 CF288 60602 Covers panels and doors 69 Internal assemblies Figure 2 4 Internal components 1 of 5 ENWW Chapter 2 Parts and diagrams 70 Table 2 8 Internal components 1 of 5 Description Part number Fuser 110V RM1 8808 O00CN Fuser 220V RM 1 8809 000CN ENWW Internal assemblies 71 Figure 2 5 Internal components 2 of 5 ENWW Chapter 2 Parts and diagrams
35. l in releasing some of the tabs that hold the cover to the product chassis 1 Remove the Tray 2 cassette 2 Open the toner cartridge door and the rear jam access door 3 Grasp the front edge of the cover and then pull the cover toward the front to release four of the seven tabs callout 1 and then release the two tabs at the top of the cover Figure 1 16 Remove the left cover p 4 With the top and front edges loose tip the top of the cover away from the product and then carefully slide the cover toward the back of the product to remove it Scanner assembly 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 2 Open the toner cartridge door and the rear jam access door ENWW Removal and replacement procedures 13 3 On the left side of the product remove the ground wire screw callout 1 disconnect one wire connector callout 2 on the formatter and disconnect two flat flexible cables callout 3 on the formatter Figure 1 17 Remove the scanner assembly 1 of 2 24 Reinstallation tip Do not lose the two protective guides installed on the flat flexible cables Be sure to reinstall them when you reinstall the scanner assembly 4 At the rear of the product remove four screws callout 1 and then slide the scanner toward the rear of the product to remove the assembly Figure 1 18 Remove the scanner assembly 2 of 2 NOTE The four scanner as
36. ly rrrrrrnrrnnnrrnvnrrrrrrnrrnnrrnnnnerrrrnnenr 22 Maim SSSI SNES EE EE ER EE 25 laser scanner assembly c ccorsavortraasacdnsaeedrvebijuoniwonelnnesdvnnsaaidenebiteaaadsdeodgwens 25 Registration assembly a NE NE 26 Fuser assembly and paper feed guide cccccccccseseeceeneeeesteeeeenteeeeneaeeees 28 Duplex drive assembly inandsterinsiniwnasauranemaseonsanmbivonnidennevidewenssdlpitelsinnmnadenntsh 31 ENWW S lenoidsua u n knuter oe heade dier ekte ses IT 34 Tray T solenoid EE NR RE ES 34 Dipl x solenoid in ni E EE T E nantes 35 M f rs and EEE 37 Main motor seres ant halte tele 37 Fires 39 Printed circuit board assemblies PCAs rrrrrrvnrrrrnrrrrrrrnnnnnrerrrrrrrverrvrnnrrrvrrrnnnnssensnnenee 41 Engine controller assembly DC controller PCA cccccecesseceesteeeeetteeeenteeees 41 Universal serial bus USB PCA rrrrrnnrrrnrrrnnnnrrererevrrrrrnnnnsrrerevenrnrnnnnssnnsseneee 46 Formater PEA vr 48 Ve 48 FOX REE SER id tent 49 Fe I KA Jesse dansa onde 50 Connecting PCA sansen ess nement seine 51 Miscellgneous pars tentent ere 52 Transfer Ole ro hnone 52 Multipurpose MP tray pickup gear assembly orrrrrrronrnrrrrrrrrnrrrrnrrrrrennnenrr 53 Document feeder assembly sisi 54 Optional paper feeder Tray 3 snnsssaosssrosenanhdzndentndwvbrsdlesnaiaswndoaceswnebsewnhdiennibedgnsnaraieiy te 55 Optional paper feeder right cover ccccceccccessececesseeeeeeeeeeeeeeeeeeeeetseeeenses 56
37. mbly Internal components 3 of 5 on page 75 RM1 9137 000CN Cassette assembly Tray 2 Internal components 4 of 5 on page 77 RM1 9153 000CN Duplexing paper feed assembly Internal components 5 of 5 on page 79 RM1 9157 000CN Reverse drive assembly Internal components 5 of 5 on page 79 RM1 9161 000CN Cover rear Covers panels and doors on page 69 RM1 9168 000CN Paper pickup roller assembly Internal components 2 of 5 on page 73 RM1 9168 000CN Paper feeder pickup roller assembly Paper feeder main body 2 of 2 on page 89 RM1 9175 000CN Transfer roller assembly Internal components 3 of 5 on page 75 RM1 9297 000CN RM1 9303 000CN RM1 9304 000CN RM1 9305 000CN Paper feeder driver PCA Cover top Cover right Cover left Paper feeder main body 2 of 2 on page 89 Covers panels and doors on page 69 Covers panels and doors on page 69 Covers panels and doors on page 69 RM1 9307 000CN Cartridge door assembly Covers panels and doors on page 69 RM1 9308 000CN Engine controller assembly DC controller 110V Internal components 5 of 5 on page 79 RM1 9308 000CN Engine controller assembly DC controller PCA 110V PCA locations on page 81 RM1 9309 000CN Engine controller assembly DC controller 220V Internal components 5 of 5
38. move the PCA from the product Figure 1 70 Remove the fax PCA ENWW Removal and replacement procedures 49 Power switch PCA 50 The power switch PCA is located in the product front cover 1 Remove the following components Tray 2 cassette Lett cover See Left cover on page 13 Scanner assembly See Scanner assembly on page 13 Control panel See Control panel on page 15 Right cover See Right cover on page 17 Cartridge door and front cover assembly See Cartridge door and front cover assembly on page 22 On the back of the front cover use a small flat blade screwdriver to release two tabs callout 1 to separate the two pieces of the cover Figure 1 71 Remove the power switch PCA 1 of 3 Chapter 1 Removal and replacement ENWW Release two tabs callout 1 to remove the PCA shield Remove the power switch PCA 2 of 3 Release one tab callout 1 and then pull the PCA out of the front cover Remove the power switch PCA 3 of 3 lo 2 RI 7 TI Eid z R N 1001v K Q M D fa 3 in T e x o da El dm 3 The connecting PCA is located on the product right side below the control panel Remove the following components e Tray 2 cassette e Left cover See ENWW Removal and replacement procedures 51 e Scanner assembly See Scanner assembly on page 13 e Control panel See Control panel on page 15 e Right cover See Right cover
39. n the toner cartridge door and the rear jam access door 3 On the left side of the product disconnect one connector callout 1 and then release the wires from the wire harness callout 2 Figure 1 47 Remove the Tray 1 pickup solenoid 1 of 2 i 0 7 34 Chapter I Removal and replacement ENWW 4 Remove one screw callout 1 and then remove the Tray 1 pickup solenoid Duplex solenoid 1 Remove the following components Tray 2 cassette Lett cover See Left cover on page 13 Scanner assembly See Scanner assembly on page 13 Control panel See Control panel on page 15 Right cover See Right cover on page 17 Rear cover rear door and duplex paper feed assembly See Rear cover rear door and feed assembly on page 20 Top cover assembly See Top cover on page 18 Fan See Fan on page 39 Duplex drive assembly See Duplex drive assembly on page 31 2 Open the toner cartridge door and the rear jam access door ENWW Removal and replacement procedures 35 3 On the right side of the product disconnect one connector callout 1 from the connecting PCA and then remove one screw callout 2 Figure 1 49 Remove the duplex solenoid 36 Chapter I Removal and replacement ENWW Motors and fans Main motor ENWW 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 e Scanner assembly See Scanner assembly on page 13
40. omponents 2 of 5 on page 73 Cable flexible flat RK2 4452 000CN Internal components 3 of 5 on page 75 Cartridge door assembly RM1 9307 000CN Covers panels and doors on page 69 Cassette assembly Tray 2 RM1 9137 000CN Internal components 4 of 5 on page 77 Connecting PCA RM1 9114 000CN Internal components 4 of 5 on page 77 Connecting PCA Control panel assembly HP LaserJet M425dn model RM1 9114 000CN CF286 60601 PCA locations on page 81 Covers panels and doors on page 69 Control panel assembly HP LaserJet M425dw model CF288 60602 Covers panels and doors on page 69 Cover inner front RC3 2532 000CN Covers panels and doors on page 69 Cover left RM1 9305 000CN Covers panels and doors on page 69 Cover left RC3 2618 000CN Paper feeder covers on page 85 Cover outer front RC3 2533 000CN Covers panels and doors on page 69 Cover rear RM1 9161 000CN Covers panels and doors on page 69 Cover rear RC3 2621 000CN Paper feeder covers on page 85 Cover right RM1 9304 000CN Covers panels and doors on page 69 Cover right Cover top Document feeder assembly RM1 9316 000CN RM1 9303 000CN CF288 60011 Paper feeder covers on page 85 Covers panels and doors on page 69 Scanner and document feeder on page 83
41. on page 79 RM1 9309 000CN Engine controller assembly DC controller PCA 220V PCA locations on page 81 Chapter 2 Parts and diagrams Table 2 19 Numerical parts list continued Part number Description Table and page RM1 9313 000CN Paper feeder 500 sheet cassette Tray 3 Paper feeder main body 2 of 2 on page 89 RM1 9316 000CN Cover right Paper feeder covers on page 85 ENWW Numerical parts list 97 98 Chapter 2 Parts and diagrams ENWW Index A accessories ordering 62 after service checklist 4 C cartridge ordering 62 part number 62 cautions iii checklists after service 4 preservice 3 conventions document iii covers left removing 13 locations 68 parts list 68 right removing 17 top removing 18 covers removing rear 20 D diagrams 61 covers panels and doors 68 internal assemblies 70 document conventions iii doors front removing 22 parts list 68 Tray 1 removing 22 doors removing rear 20 duplex paper feed assembly removing 20 paper feed assembly replacing 31 ENWW E electrostatic discharge ESD 2 engine controller assembly removing 41 ESD electrostatic discharge precaution during parts removal 2 F formatter PCA removing 48 front door removing 22 fuser removing 28 I internal assembly locations 70 parts list 70 L left cover removing 13 location assemblies 0 M main motor replacing 37 N notes iii O ordering
42. oved from another component For a complete list of screw types and part numbers see the Parts chapter Service approach Before performing service ENWW Remove all paper from the product Turn off the power using the power switch Unplug the power cable and interface cable or cables Place the product on an ESD workstation or mat or use an ESD strap if one is available If an ESD workstation mat or strap is not available ground yourself by touching the sheet metal chassis before touching an ESD sensitive part Service approach e Remove the toner cartridge e Remove the Tray 2 cassette After performing service e Plug in the power cable e Reinstall the toner cartridge e Reinstall the Tray 2 cassette e Load paper in the product Post service test Perform the following test to verify that the repair or replacement was successful Print quality test 1 Verify that you have completed the necessary reassembly steps Make sure that the tray contains clean unmarked paper Attach the power cord and interface cable or interface cables and then turn on the product Verify that the expected startup sounds occur Print a configuration page and then verify that the expected printing sounds occur Print a demo page and then verify that the print quality is as expected Send a print job from the host computer and then verify that the output meets expectations EE ae oe sd Clean the outside of the product with
43. rive assembly Top cover Fan Top cover Front cover assembly Service approach 6 Removal and replacement procedures Rollers Multipurpose MP tray pickup roller 1 Open the toner cartridge door and then remove the toner cartridge 2 Pull back and hold the pickup roller cover callout 1 press the tabs callout 2 on both ends of the pickup roller away from the roller which should cause the roller to move up and then remove the roller Figure 1 3 Remove the MP tray roller Multipurpose MP tray separation pad To remove the separation pad you must first remove the pickup roller assembly 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 2 Open the toner cartridge door and then remove the toner cartridge Chapter I Removal and replacement ENWW 3 On the left side of the product release the tab callout 1 at the center of the gear and then remove the gear callout 2 2 NOTE The gear is composed of two pieces Releasing the outer tab does not remove the entire gear assembly and exposes an internal spring in the gear Figure 1 4 Remove the MP tray separation pad 1 of 5 29 Reinstallation tip Press and hold back the gear arm callout 3 when reinstalling the pickup gear 4 In the toner cartridge cavity pull back the pickup roller cover and then use a small flat blade screwdriver to release the tab callout 1 on the pickup roll
44. saibnessenseenfosanensnnsdoscennogcensesce sens enideecs Removal and replacement strategy sdutssstonatiseeanmeneesenttonseniinresse Electrostatic discharge Varese NE ee EE EN ee diem die and doi been Service Ci ORIGIN testa shame D eee E R Before performing service sii ccivavesarsncvordvcanladausiuranins dudidavinatcauaverbedlalatansduaediazdea etneds After performing service s1 20sanansaaxseohuoaidaapniwedeneaseansiaiebsutmbdunlninanianssaanseeoriiagdeanteaes Postservice les neo eee Printguality Est onar aa Ea pa ER EEA NE Parts removal ordet a es nine Removal and replacement procedures ius 2sicaxeanrawavesenderhoiemnevendionvareuluatonsannsnniveuianeneeuinsibhevuennedene EE EE EE conan Multipurpose MP tray pickup roller Multipurpose MP tray separation pad errrnrrrrrrrrnnrrerrrnrnrnerrrrnnnnerrrrnnnsennn Tray 2 and optional Tray 3 pickup roller 44 Tray 2 and optional Tray 3 separation pad cccecceeeeseeeeeeeteeeestteeeeeeeees 10 Document feeder rollers none 11 Document feeder separation pad cccccceesseceetseeceeeeeeeeeeeteeeseeseeeenseeeeenss 12 Covers scanner assembly and control panel ccceseeeceeeseeeeeeeeeeeeeeeeeeeeneeeeesteeeees 13 EE NN 13 See ae EE ER EN on 13 Control panel EN ERE 15 Righi covet sner EE EE EE D E 17 TOP ENE NN 18 Rear cover rear door and feed assembly rrrrrrrrrronvrrrrrnvrrrrrnvnrrrrnnnnnernnn 20 Cartridge door and front cover assemb
45. se the PCA cable from the cable guides callout 2 to remove the sensor PCA Figure 1 85 Remove the optional paper feeder paper sensor PCA 4 of 4 s ENWW Removal and replacement procedures 59 60 Chapter I Removal and replacement ENWW 2 Parts and diagrams Ey NOTE In this chapter part numbers are listed only for available replaceable parts ENWW Order parts by authorized service providers How to use the parts lists and diagrams Assembly locations Covers panels and doors Internal assemblies Scanner and document feeder Input devices Alphabetical parts list Numerical parts list 6l Order parts by authorized service providers Order replacement parts Table 2 1 Order parts accessories and supplies Order supplies and paper www hp com go suresupply Order genuine HP parts or accessories www hp com buy parts Order through service or support providers Contact an HP authorized service or support provider Related documentation and software Table 2 2 Related documentation and software Item Description Part number HP LaserJet Pro 400 MFP M425 Series User Guide Product user guide CF286 90909 English HP LaserJet Pro 400 MFP M425 Series Repair Manual English repair manual this CF286 90979 manual HP LaserJet Pro 400 MFP M425 Series Troubleshooting English troubleshooting CF286 91012 Manual manual Supplies part numbers Table 2 3 Supplies part numbers
46. se tray Tray 1 Power button PCA Power switch PCA RL1 3307 000CN RM1 9039 000CN RM1 9039 000CN Internal components 4 of 5 on page 77 Covers panels and doors on page 69 PCA locations on page 81 Registration roller assembly RM1 8806 000CN Internal components 3 of 5 on page 75 Reverse drive assembly RM1 9157 000CN Internal components 5 of 5 on page 79 Scanner assembly CF288 60104 Scanner and document feeder on page 83 Sensor assembly RM1 8807 000CN Internal components 3 of 5 on page 75 Separation pad holder assembly Tray 2 RM1 7365 000CN Internal components 4 of 5 on page 77 Separation pad multipurpose tray RL1 2115 000CN Internal components 2 of 5 on page 73 Solenoid RK2 0426 000CN Paper feeder main body 1 of 2 on page 87 Solenoid duplex RK2 2733 000CN Internal components 5 of 5 Solenoid Tray 1 Switch power button assembly Transfer roller assembly RK2 2731 000CN RM1 9125 000CN RM1 9175 000CN on page 79 Internal components 4 of 5 on page 77 Covers panels and doors on page 69 Internal components 3 of 5 on page 75 Universal serial bus USB PCA Chapter 2 Parts and diagrams CF368 60001 PCA locations on page 81 Table 2 18 Alphabetical parts list continued Description Part number Table and page Wireless PCA HP LaserJet M425dw model onl
47. sembly screws removed in this step are a different size than the other screws used on the product Set these screws aside to use when you reinstall the scanner assembly 14 Chapter I Removal and replacement ENWW Control panel ENWW 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 e Scanner assembly See Scanner assembly on page 13 Open the toner cartridge door and the rear jam access door On the rear of the control panel remove the cable cover callout 1 disconnect one flat flexible cable callout 2 and then pull back the flat flexible cable Figure 1 19 Remove the control panel 1 of 3 Removal and replacement procedures 15 In the cavity behind the control panel remove two screws callout 1 Remove the control panel 2 of 3 Pull the top of the control panel assembly away from the product to release the tab callout 1 at the back of the assembly and then pull the control panel away from the product Remove the control panel 3 of 3 Chapter I Removal and replacement ENWW Right cover 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 e Scanner assembly See Scanner assembly on page 13 e Control panel See Control panel on page 15 2 Open the toner cartridge door and the rear jam access door 3 Grasp the rear edge of the cover and pull that edge toward the rear to release the four tabs c
48. stallation 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 e Scanner assembly See Scanner assembly on page 13 e Control panel See Control panel on page 15 e Right cover See Right cover on page 17 e Rear cover rear door and feed assembly See Rear cover rear door and feed assembly on page 20 2 Open the rear jam access door 28 Chapter I Removal and replacement ENWW 3 On the right side of the product remove three gears callout 1 Figure 1 38 Remove the fuser 1 of 5 4 Remove two screws callout 1 Figure 1 39 Remove the fuser 2 of 5 ENWW Removal and replacement procedures 29 5 At the rear of the product disconnect six connectors callout 1 and then pull the wire guide callout 2 away from the product Figure 1 40 Remove the fuser 3 of 5 fy NOTE You do not need to unroute the disconnected wires from the wire guide 6 Remove one screw callout 1 remove the media feed guide callout 2 and unroute the wire callout 3 at the corner of the engine controller assembly 30 Chapter I Removal and replacement ENWW 7 Disconnect three connectors callout 1 remove two screws callout 2 and then remove the fuser callout 3 Figure 1 42 Remove the fuser 5 of 5 Duplex drive assembly 1 Remove the following components Tray 2 cassette Lett cover See Left cover on page 13 Scanner assembly S
49. ter PCA NOTE Place a mark on one of the cartridge door interlock switch wires before you disconnect them so that you can reconnect the connectors to the same switch lugs Figure 1 62 Remove the engine co R ntroller assembly 6 of 9 44 Chapter I Removal and replacement ENWW 8 Remove three screws callout 1 Figure 1 63 Remove the engine controller assembly 7 of 9 w e Eo tw 9 On both sides of the product use a small flat blade screwdriver to release the sheet metal tabs callout 1 in the product chassis to lower the engine controller assembly PCA callout 2 NOTE It might be easier to release the right side tab from inside the chassis A CAUTION Carefully push the tab toward the outside of the product to release it Do not bend the tab so much that it will not engage the mounting bracket when the engine controller assembly is reinstalled Figure 1 64 Remove the engine controller assembly 8 of 9 me l t I gt 4 4 ENWW Removal and replacement procedures 45 10 Pull the cable callout 1 and the flat cable callout 2 into the product chassis and then carefully slide the engine controller assembly callout 3 out of the product Universal serial bus USB PCA E NOTE This section applies to walkup USB equipped models only 1 Remove the following components e Tray 2 cassette e Left cover See Left cover on page 13 46 Chapter I Removal and replac
50. the silver screw The silver screw needs to be reinstalled in the same place Fan 1 Remove the following components Tray 2 cassette Lett cover See Left cover on page 13 Scanner assembly See Scanner assembly on page 13 Control panel See Control panel on page 15 Right cover See Right cover on page 17 Top cover assembly See Top cover on page 18 2 Open the toner cartridge door and the rear jam access door ENWW Removal and replacement procedures 39 3 On the right side of the product remove the grounding spring callout 1 disconnect one connector callout 2 release two tabs callout 3 and then remove the main fan Figure 1 54 Remove the fan 1 of 2 Reinstallation tip When reassembling the main fan to the duct make sure that the fan cable callout 1 is positioned as shown in the figure below Also make sure that the label callout 2 on the fan is facing inside Figure 1 55 Remove the fan 2 of 2 40 Chapter I Removal and replacement ENWW Printed circuit board assemblies PCAs Engine controller assembly DC controller PCA WARNING ESD sensitive component A CAUTION When removing the engine controller assembly callout 1 from the rear of the product the portion callout 2 on the left side of the assembly might be hot Allow enough time for the engine controller assembly to cool after the product power is turned off Figure 1 56 Allow the engine
51. ts e Tray 2 cassette e Left cover See Left cover on page 13 e Scanner assembly See Scanner assembly on page 13 e Control panel See Control panel on page 15 e Right cover See Right cover on page 17 2 Open the toner cartridge door and the rear jam access door 3 At the front of the product in the Tray 2 cassette cavity pull down on the green duplex paper feed assembly release tab callout 1 and then lower the assembly callout 2 Figure 1 26 Remove the rear cover rear door and feed assembly 1 of 3 20 Chapter I Removal and replacement ENWW 4 At the rear of the product remove five screws callout 1 release one tab callout 2 near the bottom corner and release two tabs callout 3 from under the top cover assembly Figure 1 27 Remove the rear cover rear door and feed assembly 2 of 3 5 Carefully separate the rear cover and rear door from the product and then remove them fay NOTE The duplex paper feed assembly is removed with the cover and door 6 Reinstallation tip When you reinstall the rear cover assembly open the rear door to make sure that the rear cover fits even against the product chassis before you install the mounting screws 6 There are two hinge pins callout 1 Release the shorter left pin first and then separate the rear cover and rear door assembly callout 2 from the duplex paper feed assembly callout 3 Figure 1 28 Remove the rear cover rear door and
52. y 2 of 2 srs nant en tant AE ei ec a te 88 xiii xiv ENWW 1 Removal and replacement e Removal and replacement strategy e Service approach e Removal and replacement procedures ENWW Removal and replacement strategy A WARNING Turn the product off wait 5 seconds and then remove the power cord before attempting to service the product If this warning is not followed severe injury can result in addition to damage to the product The power must be on for certain functional checks during problem solving However the power supply should be disconnected during parts removal Never operate or service the product with the protective cover removed from the laser scanner assembly The reflected beam although invisible can damage your eyes The sheet metal parts can have sharp edges Be careful when handling sheet metal parts A CAUTION Do not bend or fold the flat flexible cables FFCs during removal or installation Also do not straighten pre folds in the FFCs You must Make sure that all FFCs are fully seated in their connectors Failure to fully seat an FFC into a connector can cause a short circuit in a PCA NOTE To install a self tapping screw first turn it counterclockwise to align it with the existing thread pattern and then carefully turn it clockwise to tighten Do not overtighten If a self tapping screw hole becomes stripped repair the screw hole or replace the affected assembly Electrostatic
53. y CF1150 7940 PCA locations on page 81 Wireless PCA holder not pictured CF286 40014 PCA locations on page 81 ENWW Alphabetical parts list 93 94 Numerical parts list Table 2 19 Numerical parts list Part number Description Table and page CF1150 7940 Wireless PCA HP LaserJet M425dw model only PCA locations on page 81 CF206 60001 Fax PCA all countries regions except Europe PCA locations on page 81 CF207 60001 Fax PCA Europe PCA locations on page 81 CF229 60001 Formatter PCA PCA locations on page 81 CF229 69001 Formatter PCA China only PCA locations on page 81 CF286 40014 Wireless PCA holder not pictured PCA locations on page 81 CF286 60601 Control panel assembly HP LaserJet M425dn model Covers panels and doors on page 69 CF288 6001 1 Document feeder assembly Scanner and document feeder on page 83 CF288 60015 Document feeder pickup roller Scanner and document feeder on page 83 CF288 60016 Document feeder separation roller Scanner and document feeder on page 83 CF288 60021 Document feeder separation pad Scanner and document feeder on page 83 CF288 60104 Scanner assembly Scanner and document feeder on page 83 CF288 60602 Control panel assembly HP LaserJet M425dw model Covers panels and doors on page 69 CF368 60001 Universal serial bus USB PCA PCA locations on page 81 RC2 6131 000CN Bushing Internal components 2 of5 on pag
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