Summer `14 - LPT Home Page - HP LaserJet and Lexmark Parts
Contents
1. dil ING id your FuSers gt a nre robots SERVICE EDGE SUMMER 2014 PRODUCTS NEWS MGOO Feed Asm Change HP has modified the paper feed assembly for the L M6Ox printer series removing the black plastic guide above the roll ers Apparently the guide was causing more paper jams than it was preventing If you are getting paper jams in the paper feed area you me NEW PAPER FEED ASM FOREGROUND HAS Should upgrade to the improved version The part number is NO BLACK GUIDE AND MAY REDUCE JAMS RMI 8AT1 N Fuser Drive Asm for the LPT introduces 600 Series Available Three New Rebuilds There is now a cure for grind ing noise in the Laserjet 6 series he noise is caused by a worn out fuser drive gear assembly which LPT now stocks 246 isthefuserforthe 4025 4525 The fuser drive gear asm is a metal plate with six and CM4540 These printers use fuse technol gears and is similar to the P4014 P4015 P4515 ogy to reset the fuser life count In this case the fuser drive gear asm The part number is RC2 fuse in question doesn t open until 100 pages 2432 M6OI have been printed This is useful for troubleshoot Like the swing plate in the 4200 series the fuser IC count will not go to 100 life until 100 pages drive asm turns the gears fuser Unlike the have been printed Ihis is2. one screw from the left duct Fig 31 and remove the ducts the right one is secured by retaining tabs and can be removed by squeezing and wig gling it 21 Remove the drum drive assembly Remove three screws Fig 32 and carefully remove the drum drive assembly Note that the large gear and spring are loose Fig 33 Make sure to properly position them when re installing the assembly Also remove the cam that is attached to the drum drive disengaging arm Figs 34 35 noting proper orientation for re installment 22 Remove the pickup drive assembly First carefully remove the e clip spring arm clip and associated springs and shaft collar Fig 36 Note the orientation of these parts for later re assembly because they may all come off at once when the e clip is removed Now you can push the drive shaft through the assembly into the tray 2 cavity to remove it Fig 37 Note that an internal gear will come off the shaft and be loose inside the drive assembly Fig 38 Take care not to lose this gear When re assembling it may help to thread a pick or small screwdriver through the hole in this gear to hold it in position while re in serting the drive shaft Next release one tab to remove the black plastic guide Fig 39 also remove the wire guide on the right side of the assembly Fig 40 Finally remove six screws Fig 40 reach inside the tray 2 cavity to push the feed roller up into its raised position and remove th
3. the fuser make sure to push it in until these tabs snap into place 7 Remove the formatter First remove the plastic formatter cov er right side of the printer toward the back by simply grasp ing sliding it straight back remove the metal formatter cage remove the two screws then use the finger holes on the side to grasp it and slide it straight back This will require some force as you are also unplugging a connector When reinstall ing the board cage you may want to open the metal door on the side of the cage so that you can visually verify correct seat ing of this connector 8 Remove the top cover Open the print cartridge door and the front cover Use needle nose pliers to release the print car SERVICE EDGE SUMMER 2014 tridge drive arm from the right side of the cover and then push the arm down into the printer remember to re attach this arm when re installing the cover Remove four screws one in each of the four corners of the cover Now partially close the print cartridge door release two tabs Fig A and lift the cover off the printer lake care to properly reseat these two tabs when re installing the cover Also note that the accessory pin in the left rear corner of the cover is not captive take care not to lose it 9 Remove the right side cover Release two tabs one at the up per rear corner and one along the top edge directly above the fan vent hen slightly flex the cover to releas
4. this arm when re installing the cover Remove four screws one in each of the four corners of the cover A in Fig 8 Now partially close the print cartridge door release two tabs B in Fig 8 and lift the cover off the printer care to properly reseat these two tabs when re installing the cover Also note that the accessory pin in the left rear corner of the cover is not captive take care not to lose it 9 Remove the right side cover Release three tabs one along the top edge directly above the fan vent one at the upper rear corner Fig 9 and one atthe front of the formatter cavity Then slightly flex the cover to release the front edge Fig 10 rotate the top edge away from the printer and lift up to remove it When re installing the cover make sure that the plastic pow er switch on the cover couples properly to the metal power switch rod in the printer Fig 11 10 Remove the left side cover Open the front cover and gently flex the retainers to separate them from the tray arms so that you can open the cover all the way this is to provide clearance for the left cover Now release two tabs one along the top edge ofthe left cover and one along the front edge rotate the top of the cover away from the printer and lift up to remove it 11 Remove the dc controller PCA Unplug all cables and re move them from their cable guides Fig 12 Note that many of these cables have release tabs do not try to un
5. to release the hinge pin near the power cord side of the printer Then rotate the door to the hori zontal position and pull up on the remaining hinge pin to release the door Fig 2 5 Remove the rear output bin Open the bin and squeeze the right hinge on your left if you are behind the printer out of its mounting hole Fig 3 Then rotate the bin away from the printer to release the other hinge pin 6 Remove the fuser Squeeze the blue fuser release tabs one on each side and pull the fuser straight back and out of the printer Fig 4 When re installing the fuser make sure to push it in until these tabs snap into place 7 Remove the formatter First re move the plastic formatter cover right side of the printer toward the back by simply grasping it and sliding it straight back Fig 5 To remove the metal formatter cage re move two screws Fig 6 then use the finger holes on the side to grasp it and slide it straight back This will require some force as you are also unplugging a connector When re installing the board cage you may want to open the metal door on the side of the cage so that you can visu ally verify correct seating of this con nector 8 Remove the top cover Open the orint cartridge door and the front cover Use needle nose pliers to re lease the print cartridge drive arm from the right side of the cover Fig 7 and then push the arm down into the printer remember to re attach
6. true for new as well as swing plate this asm itself is not activated by a ctu Taser main drive assembly but by a fuser motor Also it has swing arm y CE484A is for the CP3525 CM3530 M551 and M575 For these printers resetting the page count is done through the printer menu Liberty Parts Team introduced three new fuser rebuilds this summer The first two are similar but not interchangeable SERVICE EDGE is the quarterly laser printer tech bulletin of Liberty Parts Team Editor in Chief David K Reinke Editor 1 8808 is for the M421 and M425 It is Tech Writer similar to the P2035 P2055 fuser Dennis Kosterman As always every rebuilt fuser is remanufac 2014 Liberty Parts Team Inc tured tested and inspected in the USA PARTS IN SPAGE wirTH ARZNO WRK ARRIVED ALPHA CENTAURI ES STATUS UNLOADING REFURB D FUSERS AT QC FACILITY LE CAPTAIN WRK SINCE WE BOUGHT THE PRINTER PARTS COMPANY WE VE OUTSOURCED 99 OF THE WORK TO OTHER PLANETS WOULDN T IT HAVE BEEN SMARTER TO KEEP THOSE JOBS IN AMERICA AND PAY LIVING WAGES WE RE NOT FROM THERE WHY SHOULD WE CARE FIRST OUR FUSERS ARE REFURBED BY ROBOTS ON DENEB 9 A TER WE SELL THE FUSERS WE PAY A VISIT TO OUR INVESTORS THE VULTURE PEOPLE OF DRACO IV SORRY A LITTLE LIGHT THIS MONTH ADDIVER AIDHA CENTALRI BUT DUCKING OUR MEDICARE AND SOCIAL SECURITY OBLIGATI
7. ONS AFFECTS OUR CUSTOMERS SURELY PEEL A LITTLE BETRAYED BELIEVE ME INTER GALACTIC OUTSOURCING IS THE BEST WAY THEN THEY RE OFF TO OUR NEW FACILITY IN ALPHA CENTAURI FOR QUALITY CONTROL ARRIVED ALPHA CENTAURI E STATUS UNLOADING REFURB D FUSERS AT QC FACILITY BUT WELL LOSE CUSTOMERS WHEN THEY FIND OUT AND I LL LOSE MY HEAD IF WE DON T OBEY OUR INVESTORS TW 117 SERVICE EDGE SUMMER 2014 A Top Cover Two tabs EUR E 4 56 SANE GA RAN B Power Supply PCA Guide one screw and one tab Power Supply five screws C Cables to be unplugged seven connectors and one cable shown e 3 NEM 82 ae 45 1 E N gt E 1 pe 1 Ds f P Tr eM 4 aS VP ad 8 Ede Se op XS uy 1 UN x VS us P B a A X a e x Y 2 e SS gt 1 s y gt pw N 4 PRINTER REPAIR ARTICLE Fuser Drive Asm Replacement for the L 600 Series The HP LaserJet family is the replacement for the P4014 P4015 P4515 As is the case with most high speed laser printers there a tendency for the gears in the fuser drive asm to wear out resulting in grinding noise The fuser drive asm for the 600 series is different from the P4015 version the gears are now helica
8. e right side Fig 24 at the bottom and pull the cover off 17 Remove the tray paper pickup assembly First disengage tray from the tray 1 cover Fig 25 this may have already been done in step 10 then slide the cover to the right to remove it The tray arms will have a tendency to spring away from the tray but this is no more than an annoyance and can be minimized in any case by keeping tray 1 folded up as in Fig 26 as much as possible Remove eight screws Fig 27 rotate the left side of the assembly away from the front of the printer and slide it to the left to remove it lake care to thread the cables through the holes on the right Fig 28 and note cable routing for re installation 18 Remove fans 102 and FN103 Fig 29 For each fan re lease the cable from the retainer on the fan duct release one re taining tab at the top for the left fan at the bottom for the right fan and pull the fan straight out When re installing make sure airflow is into the printer there is an arrow on the fan indicating airflow direction 19 Remove the pickup motor B in Fig 30 and the drum mo tor A in Fig 30 For both disconnect the wire harness remove three screws and then pull the motor toward you to remove it you may have to rotate the motor to the right first to release a retaining tab on the back of it 20 Remove the two fan ducts First separate any remaining wire harnesses from the two ducts Then remove
9. e ofthe following problems e 8 4 1 1 Looping initialization without reaching ready e Blank display Stuck display HP logo or initializing screen You assume it is the new format ter and send it back However the vendor tests it and finds no problem The culprit is the ribbon cable fromthe ECU tothe formatter which like most ribbon cables cannot bear rough handling Shoved into place carelessly the metal teeth can get bent out of place causing malfunc tion In the case of the P3005 the Engine Controller Unit ECU will probably need replacing When plugging in ribbon cables just keep in mind that the teeth are delicate A good way to proceed is to insert a corner and slide the rest into place The ribbon cable issue is par ticularly common with the P3005 M3025 and M3035 But be careful with ribbon cables in all printers LPT PRINTER TECH ARTICLE Removing the Transfer Block from the P4015 The transfer block is the plas tic core of the LaserJet P4xxx the 4200 50 series and the M6Ox This frequently replaced part contains three things that can break or mal function 1 the clips for mounting the transfer roller 2 the high voltage contact springs these make the electrical connections between the power supply and the toner cartridge 3 the paper feed registration and paper width sensors If any of these things break and item 1 in particular oft
10. e pickup drive assembly 23 Remove the tray drive assembly Remove the plastic wire guide then remove two screws Fig 41 to remove this drive assembly 24 Remove the left lower cassette guide Fig 42 shows the guide from the inside looking in through the rear of the printer To remove it remove two screws Fig 43 and slide the guide toward the rear of the printer 25 Remove the transfer block assembly The basic idea is to remove the left wall of the printer chassis In our photos we have unscrewed the transfer block from the right wall and then removed the left wall with the transfer block still attached It is also possible to remove the left wall by itself and then unscrew the transfer block from the right wall Either way we are remov ing the same screws on the right side four screws Fig 44 these attach the transfer block to the wall on the left side thir teen screws Fig 45 Ofthe left side screws five screw into the laser scanner shelf A two into the paper pickup feed roller shelf B three into the bottom of the printer chassis C and finally three into the transfer block D these can be temporarily left in if you are removing the wall with the block still attached Figures 46 and 47 show the wall block detached from the printer NOTE In this procedure we have removed the transfer block with the feed roller assembly registration assembly and transfer roller still attached to it These three ite
11. e the front edge rotate the top edge away from the printer and lift up to remove it 10 Remove the left side cover Open the front cover and gently flex the retainers to separate them from the tray 1 arms so that D RW Crossmember Plate you can open the cover all the way this is to provide clearance Two screws for the left cover Now release two tabs one along the top edge ofthe left cover and one along the front edge rotate the top of the cover away from the printer and lift up to remove it 11 Remove the power supply PCA guide right side of printer toward the back Remove one screw release the retaining tab and slide the guide toward the rear of the printer to remove it Fig B 12 Remove the power supply On the right side of the printer remove four screws and one grounding screw Fig B Then un plug seven cables from the DC Controller and one free cable to the right Fig C Feed these cables through the hole in the chassis into the paper tray cavity below the power supply On the left side ofthe printer remove two screws to remove the fan cover plate below the fan This gives you access to three ca bles Unplug them and remove four screws which correspond to four screws on the other side Fig B Now grasp the power E RW Crossmember Plate supply from behind lift it slightly and slide it out the back of the printer NOTE When removing and re installing the power sup ply take care not to disl
12. emove four screws B in Fig 16 which correspond SERVICE EDGE SUMMER 2014 SERVICE EDGE SUMMER 2014 to four screws on the other side Fig 14 Now grasp the power supply from behind lift it slightly and slide it out the back of the printer Fig 18 NOTE When removing and re installing the power supply take care not to dislodge the small rubber belts and plastic rollers on the feed guide assembly mounted to the top ofthe power supply 14 Remove the rear upper cover Release one tab Fig 19 and then rotate the cover away from the printer to remove it When re installing make sure to seat the hooks on the far end of the cover before snapping the tab back in 15 Remove the paper delivery assembly First remove the guide by releasing two tabs at the top Fig 20 and then pushing up Use a pick or a small flat blade screwdriver to release the locking pin at the tip of the shaft lock and then rotate the lock counter clockwise until you can pull it out Figs 21 22 Then lift the gear end of the paper delivery assembly taking care to disengage the sensor cable from its slot and slide the assembly toward the formatter side of the printer to remove it Be careful not to dis lodge the sensor when removing or re installing this assembly 16 Remove the right front cover Open the front cover tray 1 door and remove the envelope feeder connector cover Fig 23 Then remove two screws in front Fig 23 and one on th
13. en does break you will need to replace the whole assembly replace it is a long job since almost total disas sembly is required No replacement instructions exist for the transfer block in the service manuals except forthe 4200 4300 manual the only one to mention it make the job as quick as pos sible we ve prepared the following instructions which are tailored for the P4014 P4015 P4515 These in structions will be useful for the other models provided they are used in conjunction with the appropriate service manual in order to navigate the differences Remove the toner cartridge and paper cassette Make sure to put the toner cartridge in a dark place or cover it prolonged exposure to ambient light can damage the drum 2 Remove top accessories or top accessory cover Remove any output accessories stacker mailbox etc If there are none remove the top accessory cover toward the back of PERERA RAE SUMMER 2 i 2 9 4 f A 1 W I EX EE the printer on top by simply lifting it up Fig 1 There are retaining tabs on each side but they will release themselves as you pull up on the cover 3 Remove the duplexer or duplex accessory cover Simply pull the du or the cover out of the printer from the back to remove it 4 Remove the tray 2 extension door in back of printer Carefully flex the door
14. l and the procedure for replacing it is also slightly different A step by step proce dure follows unless stated otherwise left right designations are as viewed from the front of the printer Remove the toner cartridge and paper cassette Make sure to put the toner cartridge in a dark place or cover it prolonged exposure to ambient light can damage the drum 2 Remove top accessories or top accessory cover Remove any output accessories stacker mailbox etc If there are none re move the top accessory cover toward the back of the printer on top by simply lifting it up There are retaining tabs on each side but they will release themselves as you pull up on the cov er 3 Remove the duplexer or duplex accessory cover Simply pull the duplexer or the cover out of the printer from the back to remove it 4 Remove the tray 2 extension door in back of printer Care fully flex the door to release the hinge pin near the power cord side of the printer Then rotate the door to the horizontal posi tion and pull up on the remaining hinge pin to release the door 5 Remove the rear output bin Open the bin and squeeze the right hinge pin on your left if you are behind the printer out of its mounting hole Then rotate the bin away from the printer to release the other hinge pin 6 Remove the fuser Squeeze the blue fuser release tabs one on each side and pull the fuser straight back and out of the printer When re installing
15. ms will have to be removed from the old block and attached to the new one We recommend doing this while the transfer block is removed from the printer but they can also be removed earlier and re installed later LPT SERVICE EDGE SUMMER 2014 LPT Stocks These Transfer Assemblies P4014 P4015 P4515 RC2 2269 M601 M602 M603 no p n 4250 4350 4240 RM1 0007 190 4200 4300 RM1 0007 These transfer assemblies are not interchangeable Make sure you order the correct part 888 444 8778 Ly LIBERTY PARTS TEAM Prsrt Std U S Postage PAID Permit 168 Madison WI LIBERTY PARTS TEAM LIBERTY PARTS TEAM INC 3517 W BELTLINE HWY MADISON WI 53713 888 444 8778 WWW LBRTY COM LIBERTY PARTS TEAM M601 M602 M603 500 sheet feeder CE998 67901 N New OEM 239 00 M601 M602 M603 Maintenance Kit CFO64A N New OEM 339 00 4250 4240 4350 Fuser RM1 1082 N New OEM 189 00 CL 4600 4610 4650 Transfer Kit ANG RG5 7455 N New 199 00 CLJ 4700 CP4005 Fuser RM1 3131 N New OEM 259 00 These prices are valid thru September 30 2014 while quantities last CALL 888 444 8778
16. odge the small rubber belts and plastic rollers on the feed guide assembly mounted to the top of the power supply A uu 13 Remove the RW crossmember plate his is a metal piece l Et 21 that attaches to the rear edge of the metal plate that supports PER d 1 the laser scanner To remove it it is necessary to remove four screws Iwo of these are easily accessed from the rear Fig D The other two Fig E are accessed from the bottom by insert ing one s arms through the paper tray cavity 14 Remove the fuser drive assembly This is attached to the inner surface ofthe right wall ofthe printer chassis by four screws one in each corner o access the lower front screw you will need to remove a gear Fig F This will require first removing a small c clip take care not to lose it Then remove the four screws and pull the drive assembly away from the chassis taking care not to let any of the non captive gears fall off 15 Reverse the above steps to re assemble the printer n lj F Gear Shaft gear removed amp four screws Careful with Ribbon Cables ane Apparent Formatter T Malfunctions Caused By PEEL B Bent Cable Teeth A common P3005 M3025 35 issue that can happen with other printers too ti 1 1 i Y VEL AM MA mi 1 We ba OM 4 Y You buy and install a new formatter for a Laserjet P3005 and im mediately experience on
17. plug these without releasing the tabs Remove the formatter connector ground clip the thin wire covering the small formatter connec tor then remove two screws to free this PCA Fig 13 and finally free the attached flat flexible cable from its retainer Then remove two screws from the dc controller PCA itself Fig 12 release one tab lower right corner and remove the PCA along with the formatter connector PCA they are hard wired to each other 12 Remove the power supply PCA guide right side of printer toward the back Remove one or two screws A in Fig 14 and release the retaining tab B in Fig 14 and slide the guide to ward the rear of the printer to remove it 13 Remove the power supply On the right side of the printer remove four screws and one grounding screw C in Fig 14 Feed the power supply cables these will already have been unplugged from the dc controller in the previous step through the hole in the chassis into the paper tray cavity below the pow er supply Unhook the power switch rod from the chassis and then pull down to remove it from the power supply note that the rod attaches to the power supply inside the paper tray cav ity Fig 15 observe this before removing it so you will know where to re attach it later On the left side ofthe printer remove two screws to remove the fan cover plate below the fan A in Fig 16 This gives you access to three cables Fig 17 Unplug them and r
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