Lexmark W850 Parts
📖 Lexmark W850: Complete Technical Guide. Specifications, maintenance & parts reference from 40 years of Lexmark expertise.
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| Assembly 1: Covers and operator panel (1 of 2) 1 40X5566 Operator panel assembly Lexmark 40X5566 Operator panel assembly New 40X5566 (New) This part is electronically branded upon installation, and therefore NON-RETURNABLE IF OPENED 2 40X5561 Operator panel controller card 3 40X5563 Operator panel cable 4 40X5564 Operator panel USB cable assembly Lexmark 40X5564 Operator panel USB cable assembly Fully refurbished with 90-day warranty 40X5564 $27.78 5 40X0553 Switch (printer front door interlock) 6 40X0558 Top cover assembly 7 40X5565 Printer front door cover assembly 8 40X0560 Front door magnetic catch 9 40X0561 Front door support strap Lexmark 40X0561 Front Door Support Strap New 40X0561 (New) Retired, no longer available: Contact for alternatives 10 40X0562 Front inner cover 11 40X0960 2TM/TTM retaining screws 12 40X0551 Front left cover 13 40X0550 Left lower cover 14 40X0552 Top rear cover | ![]() |
| Assembly 2: Covers 1 40X0566 Rear motor cover 2 40X2382 TVOC filter assembly 3 40X0565 Cable hookup door kit includes: • Cable hookup cover • Cable hookup door 4 40X0568 Option hookup cover 5 40X0567 Rear lower cover (110V) 5 40X0955 Rear lower cover (220V) 6 40X0564 Right lower cover 7 40X0563 Right upper cover | ![]() |
| Assembly 3: Media feed unit 1 40X0570 Switch (media size) 2 40X0569 Media tray catch kit includes: • Media tray catch • Media tray slide (2 each) 3 40X0572 Vertical turn guide 4 40X0571 Vertical turn mylar guide Parts catalog 7-5 | ![]() |
| Assembly 4: Media feed unit exploded (tray 1 and tray 2) 1 40X0581 Media feed unit assembly Lexmark 40X0581 Media Feed Unit Assembly (Assembled) Fully refurbished with 90-day warranty 40x0581 $33.75 2 40X0582 Media feed lift motor 3 40X0585 Media feed drive gear kit includes: • Media feed unit drive gear 13T • Media feed unit drive gear 28/21T • Media feed unit drive gear 29T • Media feed unit drive gear 27T • 2 mm washer (2 each) 4 40X0880 Bushing 6 mm 5 40X0967 Media tray lift one-way clutch/gear kit includes: • Media tray lift one-way clutch • Media tray lift one-way gear Lexmark 40X0967 Media tray lift one-way clutch and gear Fully refurbished with 90-day warranty 40X0967 $29.48 6 40X0968 Media tray lift one-way shaft 7 40X0583 Tray lift coupling kit includes: • Tray lift coupling • Tray lift coupling gear 31T • Spring 8 40X0590 Pick roll assembly spring 9 40X0593 Separation roll friction clutch kit includes: • Separation roll one-way friction clutch • Separation roll spacer 10 40X0594 Feed unit roll kit includes: • Feed roll (2) • Pick roll (2) • Separation roll (2) 11 40X0970 Pick roll drive gear 12 40X0969 Pick roll idler gear 13 40X0591 Feed roll one-way clutch kit includes: • Feed roll one-way clutch • Feed roll one-way gear 22T 14 40X0952 Bushing 6 mm 15 40X0586 Media feed unit front guide kit includes: • Media feed unit front guide • Media feed unit front guide rail Lexmark 40X0586 Media Feed Unit Front Guide Kit Fully refurbished with 90-day warranty 40X0586 $25.00 16 40X0587 Media out actuator 17 40X0588 Sensor (media out) 18 40X0588 Sensor (media level) 19 40X0589 Sensor (pre-feed) Lexmark 40X0589 Sensor (pre-feed tray 2 feed-out ADF registration) Fully refurbished with 90-day warranty 40X0589 $24.41 | ![]() |
| Assembly 5: Media tray 1 40X0573 Media tray assembly includes: (this comes assembled) • Media tray assembly • Labels (2 each) 2 40X0578 Media tray end guide kit includes: • Media tray end guide • Spring Lexmark 40X0578 Media Tray End Guide Kit New 40X0578 (New) Retired, no longer available: Contact for alternatives 3 40X0577 Media tray side guide actuator kit includes: • Media tray side guide actuator • Media tray side guide slide • Spring Lexmark 40X0577 Media Tray Side Guide Actuator Kit Fully refurbished with 90-day warranty 40X0577 $67.13 4 40X0576 Media tray side guide kit includes: • Media max label • Front media tray guide assembly • Rear media tray guide • Pinion gear (2 each) 5 40X0966 Media tray separation brush 6 40X0574 Media tray front cover includes: • Media tray front cover • Labels (2 each) 7 40X0579 Media tray end guide actuator kit includes: • Media end guide actuator • Actuator link Note: The graphic on the previous page, shows two #7 callouts. These callouts are the two items that make up the media tray end guide actuator kit. Lexmark 40X0579 Media Tray End Guide Actuator Kit Fully refurbished with 90-day warranty 40X0579 $82.45 8 40X0580 Media tray lift gear kit includes: • Tray lift coupling gear 13T • Tray lift gear 13/60T • Tray lift sector gear 12T 9 40X0965 Media tray separation pad Parts catalog 7-9 | ![]() |
| Assembly 6: MPF unit 1 40X0600 MPF rear cover 2 40X0599 MPF front cover Lexmark 40X0599 Multipurpose Feeder Front Cover Fully refurbished with 90-day warranty 40X0599 $24.71 3 40X6000 MPF feed unit assembly Lexmark 40X6000 Multipurpose Feed Unit Assembly Fully refurbished with 90-day warranty 40X6000 $155.37 4 40X0608 MPF fold down tray assembly 5 40X0597 MPF unit cable assembly 6 40X0755 MPF pickup spring Lexmark 40X0755 Multipurpose Feeder Pickup Spring Fully refurbished with 90-day warranty 40X0755 $56.82 7 40X0598 MPF idler gear bracket assembly Lexmark 40X0598 MPF Idler gear bracket assembly Fully refurbished with 90-day warranty 40X0598 $43.67 8 40X0601 MPF transport pinch roll assembly Lexmark 40X0601 MPF Transport Pinch Roll Assembly Fully refurbished with 90-day warranty 40X0601 $95.92 9 40X0588 Sensor (MPF media out) 10 40X0596 MPF media out actuator kit includes: • MPF media out actuator • Upper frame Parts catalog 7-11 | ![]() |
| Assembly 7: MPF unit feed 1 40X0605 MPF transport roll kit includes: • MPF transport shaft collar • MPF transport gear 18T • MPF transport roll assembly • Bushing 8 mm (2 each) 2 40X0603 MPF pick roll kit includes: • MPF pressure pad • MPF pick roll assembly 3 40X1382 MPF feed shaft kit includes: • MPF feed shaft • MPF feed shaft cam rear • MPF feed shaft cam front • MPF feed shaft roll core (2 each) • MPF feed roll assembly 4 40X0974 MPF pressure pad kit includes: • Shaft • MPF pressure pad 5 40X1380 MPF pressure pad spring 6 40X1381 MPF feed shaft bushing 7 40X0606 MFP pick solenoid kit includes: • Pick lever • Pick solenoid • Spring 8 40X0971 MPF feed drive gear kit includes: • MPF feed gear • MPF feed gear stopper 9 40X0973 MPF feed cam gear kit includes: • MPF feed cam gear • Spring Parts catalog 7-13 | ![]() |
| Assembly 8: Left lower door and transport 1 40X0609 Vertical drive gear assembly 2 40X0610 Switch (left lower door interlock) 3 40X1386 Bushing 6 mm (transport roll rear) 4 40X1387 Transport roll kit includes: • Transport roll assembly • Transport roll gear 18T 5 40X1388 Bushing 8 mm 6 40X0612 Printer left lower door assembly (this comes assembled) Lexmark 40X0612 Left Lower Door Assembly (Assembled) Fully refurbished with 90-day warranty 40X0612 $49.00 7 40X0614 Left lower door handle kit includes: • Left lower door handle • Spring 8 40X0613 Hinge pin Parts catalog 7-15 | ![]() |
| Assembly 9: Left door and transfer roll 1 40X0553 Switch (printer left door interlock) 2 40X0618 PC cartridge shutter link 3 40X0617 Transfer roll power contact 4 40X0616 Transfer roll assembly 5 40X0619 Transfer roll guide assembly Parts catalog 7-17 | ![]() |
| Assembly 10: Printer left door 1 40X0620 Printer left door assembly (this comes assembled) Lexmark 40X0620 Left Door Assembly (Assembled) Fully refurbished with 90-day warranty 40X0620 $185.00 2 40X0624 Printer left door support strap 3 40X0623 Left door duplex entrance guide Lexmark 40X0623 Left Door Duplex Entrance Guide Fully refurbished with 90-day warranty 40X0623 $58.55 4 40X0621 Printer left door assembly handle kit includes: • Printer left door assembly handle • Spring 5 40X0622 PC cartridge shutter actuator Parts catalog 7-19 | ![]() |
| Assembly 11: Registration 1 40X0629 Transport clutch assembly includes: • Bushing 4.5 mm front • Bushing 4.5 mm rear • Shaft • Transport clutch gear 19T • Transport clutch 2 40X0628 Registration mylar guide assembly 3 40X0625 Registration roll assembly (this comes assembled) 4 40X0627 Sensor (registration) 5 40X0589 Sensor (tray 2 feed-out) Lexmark 40X0589 Sensor (pre-feed tray 2 feed-out ADF registration) Fully refurbished with 90-day warranty 40X0589 $24.41 6 40X0630 Tray 2 feed-out sensor guide (this comes assembled) Parts catalog 7-21 Lexmark 40X0630 Tray 2 feed-out sensor guide (assembled) Fully refurbished with 90-day warranty 40X0630 $11.72 | ![]() |
| Assembly 12: Printhead, cartridge guides, and fans 1 40X0639 Toner add motor assembly 2 40X0640 Fuser cooling fan 3 40X0636 Sensor (RFID toner cartridge) 4 40X0641 Printhead assembly 5 40X0631 PC cartridge stop 6 40X0644 PC cartridge sensor connector 7 40X1390 Switch (PC cartridge interlock) kit includes: • Backup spring • Switch (PC cartridge interlock) Lexmark 40X1390 Switch (PC cartridge interlock) kit Fully refurbished with 90-day warranty 40X1390 $32.21 8 40X1389 PC cartridge interlock switch screw 9 40X0633 Sensor (hum & temp) Lexmark 40X0633 Sensor (humidity & temperature) Fully refurbished with 90-day warranty 40X0633 $11.75 10 40X0634 PC cartridge guide assembly 11 40X0635 Laser opening guide 12 40X0636 Sensor (RFID PC cartridge) 13 40X0643 PC cartridge cooling fan 14 40X0637 Multi connector cable assembly 1 Lexmark 40X0637 Multi-connector cable assembly 1 Fully refurbished with 90-day warranty 40X0637 $31.25 15 40X0638 Toner cartridge guide kit includes: • Toner cartridge guide assembly • PC cartridge cooling fan duct • PC cartridge cooling fan Parts catalog 7-23 Lexmark 40X0638 Toner cartridge guide assembly Fully refurbished with 90-day warranty 40X0638 $48.46 | ![]() |
| Assembly 13: Fuser 1 40X0588 Sensor (fuser exit) 2 40X5931 Sensor (fuser exit) assembly with actuator 3 40X0647 Fuser assembly 110V (this comes assembled) Lexmark 40X0647 Fuser Assembly New 40X0647 Advanced Exchange (New) Retired, no longer available: Contact for alternatives 3 40X0648 Fuser assembly 220V (this comes assembled) 3 40X0646 Fuser assembly 100V (this comes assembled) Parts catalog 7-25 | ![]() |
| Assembly 14: Standard Exit 1 1 40X0649 Exit 1 media shift assembly (this comes assembled) 2 40X0655 Standard exit 1 top cover Lexmark 40X0655 Standard Exit 1 Top Cover New 40X0655 (New) Retired, no longer available: Contact for alternatives 3 40X0657 Standard bin full exit 1 actuator kit includes: • Standard bin full exit 1 actuator shaft • Standard bin full exit 1 actuator • Output guide 4 40X0650 Exit 1 sensor cable assembly 5 40X0651 Media shift motor 6 40X0653 Exit 1 media shift gear 7 40X0588 Sensor (standard bin full exit 1) 8 40X0588 Sensor (exit 1 media shift HP) 9 40X0654 Media diverter gate kit includes: • Media diverter gate • Spring 10 40X1391 Exit 1 static eliminator 11 40X1392 Exit 1 media exit guide kit includes: • Exit 1 media guide • Exit 1 media guide pad 12 40X2389 Output guide | ![]() |
| Assembly 15: Dual unit drive motor 1 40X0660 Dual drive motor assembly 2 40X0659 Exit 1 drive belt 3 40X0661 Drive belt flange 4 40X0658 MPF & transport roll idler gear kit includes: • Transport roll idler gear 28T • MPF idler gear 18T • Flange • Transport/MPF idler gear 21/21T Parts catalog 7-29 Lexmark 40X0658 MPF & transport roll idler gear kit Fully refurbished with 90-day warranty 40X0658 $26.05 | ![]() |
| Assembly 16: Electrical 1 40X0664 Exit interface card assembly 2 40X5562 RIP card assembly Lexmark 40X5562 RIP Card Assembly W850 New 40X5562 L (New) This part is electronically branded upon installation, and therefore NON-RETURNABLE IF OPENED 3 40X0673 HCF hookup connector assembly 4 40X0672 Rear RIP card cover 5 40X0665 Printer engine card assembly 6 40X0670 AC power input socket kit includes: • Screws 4 mm (2 each) • Bracket • AC power input socket • Ground wire • Main AC cable assembly • Finisher AC output 7 40X0666 LVPS 100/110V 7 40X0667 LVPS 220V 8 40X0668 Choke coil 220V (220V model only) 9 40X0662 HVPS 10 40X0663 Switch (main power) | ![]() |
| Assembly 17: Electrical cables 1 40X0686 RFID sensor cable assembly 2 40X0681 Fuser AC cable assembly 3 40X0684 Main switch cable assembly | ![]() |
| Assembly 18: Electrical cables 1 40X0683 Interlock switch cable assembly Lexmark 40X0683 Interlock switch cable assembly Fully refurbished with 90-day warranty 40X0683 $54.71 2 40X0673 HCF hookup connector assembly 3 40X0637 Multi connector cable assembly 1 Lexmark 40X0637 Multi-connector cable assembly 1 Fully refurbished with 90-day warranty 40X0637 $31.25 4 40X0676 Media size switch cable assembly Lexmark 40X0676 Media Size Switch Cable Assembly Fully refurbished with 90-day warranty 40X0676 $57.48 5 40X0682 Multi connector cable assembly 3 Lexmark 40X0682 Multi connector cable assembly 3 Fully refurbished with 90-day warranty 40X0682 $114.23 6 40X1390 Switch (PC cartridge interlock) kit includes: • Backup spring • Switch (PC cartridge interlock) Parts catalog 7-33 Lexmark 40X1390 Switch (PC cartridge interlock) kit Fully refurbished with 90-day warranty 40X1390 $32.21 | ![]() |
| Assembly 19: Electrical cables 1 40X0677 RIP card cable assembly 2 40X0685 Dual drive motor cable assembly Lexmark 40X0685 Dual drive motor cable assembly Fully refurbished with 90-day warranty 40X0685 $57.98 3 40X0674 Media feed unit cable assembly Lexmark 40X0674 Media Feed Unit Cable Assembly Fully refurbished with 90-day warranty 40X0674 $84.02 4 40X0675 MPF hookup cable assembly 5 40X0670 AC power input socket kit includes: • Screws 4 mm (2 each) • Bracket • AC power input socket • Ground wire • Main AC cable assembly • Finisher AC output 6 40X0682 Multi connector cable assembly 3 Lexmark 40X0682 Multi connector cable assembly 3 Fully refurbished with 90-day warranty 40X0682 $114.23 | ![]() |
| Assembly 20: Electrical cables 1 40X0680 Multi connector cable assembly 2 Lexmark 40X0680 Multi connector cable assembly 2 Fully refurbished with 90-day warranty 40X0680 $45.62 2 40X0678 Printhead cable assembly Parts catalog 7-35 | ![]() |
| Assembly 21: Electrical cable 1 40X0679 Exit interface cable assembly | ![]() |
| Assembly 22: Power cords NS 40X0269 Power cord—USA ET AL 8ft right angle NS 40X0296 Power cord—Australia 6ft straight NS 40X0297 Power cord—USA ET AL 6ft straight Parts catalog 7-37 Lexmark 40X0297 Power cord; 1.8 m, 6 ft. Straight, US, Canada, Latin America, AP Fully refurbished with 90-day warranty 40X0297 | ![]() |
| Assembly 23: Miscellaneous NS 40X0956 Maintenance kit (110V) • Fuser unit assembly • Transfer roll assembly • Feed rolls (4 each) • Pick rolls (4 each) • Separation rolls (4 each) NS 40X0957 Maintenance kit (220V) • Fuser unit assembly • Transfer roll assembly • Feed rolls (4 each) • Pick rolls (4 each) • Separation rolls (4 each) NS 40X0958 Maintenance kit (100V) • Fuser unit assembly • Transfer roll assembly • Feed rolls (4 each) • Pick rolls (4 each) • Separation rolls (4 each) NS 40X1373 W850 Forms and Bar code card NS 40X1379 W850 IPDS and SCS/TNEcard NS 40X4819 RS-232C serial interface card NS 40X4822 Hard disk NS 40X4823 Parallel 1284-B interface card Lexmark 40X4823 Parallel 1284-B interface card Fully refurbished with 90-day warranty 40X4823 $80.00 NS 40X4826 MarkNet™ N8120 Gigabit Ethernet Lexmark 40x4826 MarkNet N8120 GigaBit Ethernet Fully refurbished with 90-day warranty 40X4826 $145.00 NS 40X4827 MarkNet N8130 Fiber Ethernet 100BaseFX, 10BaseFL Lexmark 40X4827 MarkNet N8130 Fiber Ethernet 100BaseFX, 10BaseFL Print Server New 40X4827 (New) $691.15 NS 40X5301 256MB DDR2-DRAM NS 40X5302 512MB DDR2-DRAM NS 40X5303 1024MB DDR2-DRAM NS 40X5704 256MB Flash card Lexmark 40X5704 256MB Flash Memory Card Fully refurbished with 90-day warranty 40X5704 11B75N-00 $25.00 NS 40X5969 Korean font card NS 40X5970 Simplified font card NS 40X5971 Traditional Chinese font card NS 40X5972 Japanese font card NS 40X0948 Assorted e-clip packet NS 40X0949 Assorted screw packet | ![]() |
| Other listed parts 40X0645 Sensor Assembly |






















