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Lexmar X422 Laser Service Manual

Lexmar X422 Laser Manual Online:

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Lexmar X422 Laser User Manual
Lexmar X422 Laser User Guide
Lexmar X422 Laser Online Manual

Text of Lexmar X422 Laser User Guide:

  • Lexmar X422 Laser, General information 1-3 7001–001 MFP features Connectivity Note: ✓ Indicates attachment is part of the model factory shipped configuration. Fonts Note: There is no font card support. Attachments Standard USB interface ✓ Standard Ethernet 10/100 Base–TX ✓ Fax modem ✓ Fonts / options PCL bitmapped 2 PCL outline 89 PS outline 91 PPDS bitmapped 5 PPDS outline 39

  • Repair information 4-91 7001–001 Scanner ADF pick roller assembly removal 1. Open ADF upper cover. 2. Hold the left connecting shaft on the ADF pick roller assembly. 3. Push the assembly toward the right side of the ADF until the shaft is clear. 4. Lift and remove.

  • Lexmar X422 Laser, Locations 5-17 7001–001 Scanner sensors Note: Sensors 1-3 are only available as part of the ADF assembly. Reference Description 1 Paper present sensor 2 Paper position sensor 3 ADF cover closed sensor 4 Flatbed cover closed sensor

  • Lexmar X422 Laser, Parts catalog 7-29 7001-001 Assembly 11: Scanner top Asm- Index Part Numbers Units Description 11-1 56P2266 1 Cushion, scan cover 2 56P2263 1 Tray assembly, document 3 56P2264 1 Cover, flatbed 4 56P2262 1 Cover, scanner 5 56P2251 1 Idler, R2 6 56P2260 1 Cover, ADF left 7 56P2250 1 Idler, R1 8 56P2649 1 Roller kit, ADF pick and separator 9 56P2252 1 Feeder assembly, auto document 10 56P2255 1 Pad, pick 11 56P2254 1 Cover, separator 12 56P2259 1 Cover, ADF right 13 56P2256 1 Cover, ADF upper

  • Parts catalog 7-25 7001-001 Assembly 9 (cont.): Options Asm- Index Part Numbers Units Description NS 12G9832 1 MarkNet X2012e Ethernet 10/100 BaseTX/10Base2 NS 12G9831 1 MarkNet X2031e Ethernet 10/100 BaseTX NS 12G9830 1 MarkNet X2030t Token–Ring NS 99A0545 1 Adapter, external serial NS 1329605 1 Cable, high–speed bidirectional parallel (10 ft) NS 1427498 1 Cabl

  • Lexmar X422 Laser, Repair information 4-3 7001–001 1. Install printhead into MFP and snug screws just enough to hold printhead to frame. Screws do not need to be tight as screws may be loosened to make printhead position adjustments. 2. Replace the top cover, and the scanner unit. Do not permanently fasten the top cover and scanner unit to the MFP frame. Replace cables as shown. 3. Power on the MFP in diagnostics mode. See “Entering the diagnostics menu” on page 3-1 for more information. 4. Select the Registration menu and press the Start button to print the Quick Test pages. 5. Shutdown the printer. 6. Remove the scanner unit, and the top cover assembly. See “Top cover assem

  • Lexmar X422 Laser, 4-12 Service Manual 7001–001 Note: With only the left side cover removed, the following items can also now be removed and replaced: • MPF gear–see “Multipurpose feeder (MPF)” on page 7-4 for more information. • Toner level sensor–see “Electronics and cables” on page 7-8 for more information. • Motor with PWB–see “Paper feed” on page 7-14 for more information. • Door latches–see “Frame” on page 7-16 for more information. • Paper feed solenoid–see “Electronics and cables” on page 7-8 for more

  • Lexmar X422 Laser, I-4 Service Manual 7001–001 service checks ADF 2-19 cooling fan 2-20 cover interlock switch 2-21 dead machine 2-22 E-mail 2-23 fuser 2-25 cold fuser 2-26 hot fuser 2-28 HVPS/cartridge 2-29 LVPS power supply 2-24 main motor 2-30 network printing 2-31 operator panel 2-32 paper feed 2-33, 2-34, 2-35, 2-36, 2-37, 2-38 print quality 2-39 bands 2-45 black lines 2-45 black page 2-41 heavy background 2-42 light print 2-44 partial blank image 2-43 poor fusing of image 2-44 toner on back of page 2-45 variation 2-43 white lines 2-45 white spots 2

  • Lexmar X422 Laser, Diagnostic information 2-21 7001–001 Cover interlock switch service check Note: Make sure a print cartridge is installed and the cover closes all the way, engaging the cover open switch lever. FRU Action Cover interlock switch Disconnect the cover interlock cable from the interlock switch. Push the cover interlock switch to the closed position and verify continuity between the bottom and middle terminals. Open the switch and verify continuity between the bottom and top terminals. The t

  • Lexmar X422 Laser, Diagnostic information 2-9 7001–001 Paper skew See the Note regarding alignment on page 4-57 or “Paper feed service checks” on page 2-33. MFP not communicating with host See “Network printing service check” on page 2-31. Paper wrinkled or bent See “Paper “trees,” wrinkles, stacks poorly or curls” on page 2-38. Top cover will not close See “Cover interlock switch service check” on page 2-21. Operator panel button does not respond See “Operator panel service check”

  • Lexmar X422 Laser, Diagnostic information 2-53 7001–001 The paper fails to feed from the optional tray 2. • Make sure the optional tray 2 is selected from the MFP driver. • Remove the paper from the optional tray 2 and fan the paper. • Make sure the tray is pushed all the way in. • Make sure the metal plate is pressed down before inserting it into the printer. Note: Once the tray is inserted, the metal plate springs up so the paper can feed into the printer. • Make sure the paper does not exceed the stack height indicator. • Make sure the paper is under both corner bucklers (see loading paper in the

  • Lexmar X422 Laser, Repair information 4-93 7001–001 9. Pull R1 idler down to release tabs on the underside of the bracket. Slide out to remove. Note: Reinstall: with R1 idler in bracket ensure the two teeth [A] are inserted in notches. A

  • Repair information 4-63 7001–001 Smart button sensor removal 1. Remove the print cartridge. 2. Remove the gear train assembly. See “Main drive assembly removal” on page 4-44 for more information. 3. Remove the two screws and the bracket coupling assembly. 4. For additional clearance, remove the charge roll. See “Charge roll removal” on page 4-23 for more information.

  • Lexmar X422 Laser, Repair information 4-65 7001–001 Tray damper and spring removal 1. Remove the right side cover. See “Right side cover removal” on page 4-13 for more information. 2. Remove the tray damper spring from the MFP frame post [A]. 3. Rotate the lever counterclockwise as far as possible and lift out. A

  • Lexmar X422 Laser, Diagnostic information 2-45 7001–001 White or black lines or bands Toner on back of page FRU Action Print cartridge Paper feed drive gears Banding appears as light or dark horizontal lines on a uniformly gray page or on a page with a large area of graphics. Banding is primarily due to a variation in the speed of the paper as it feeds through the MFP especially in the developer and transfer process. Inspect the print cartridge and paper feed components, especially the drive gears,

  • Lexmar X422 Laser, Parts catalog 7-19 7001-001 Assembly 7: Fuser Asm- Index Part Numbers Units Description 7–1 56P0648 1 Assembly, fuser (110 V) 1 56P0671 1 Assembly, fuser (220 V) 2 56P0673 1 Fuser assembly, paper guide 3 56P0676 1 Spring, fuser exit 4 56P0646 1 Lamp, fuser (110 V) 4 56P0647 1 Lamp, fuser (220 V)

  • Lexmar X422 Laser, 1-12 Service Manual 7001–001 Scanner features Scanner function Capability Optical resolution (scan direction) 600 dpi Optical resolution (feed direction) 300/600 dpi Scan modes • 600 scan, 300 feed (mono) • 600 scan, 600 feed (mono) • 600 scan, 300 feed (color) • 600 scan, 600 feed (color) 16 ppm 8 ppm 10 ppm 5 ppm Maximum ADF paper capacity 50 sheets Maximum ADF dimensions 8.5 x 14 inches Maximum flatbed dimensions 8.5 x 11.69 inches ADF and flatbed paper sizes • A5 • JIS–B5 • Executive • Letter • Legal • Folio • Statement • A4 Note: These sizes a

  • Lexmar X422 Laser, Repair information 4-57 7001–001 7. Remove one screw in the cover adjacent to the assembly plate. Notes: – Remove the reference plate assembly through the front of the MFP [A]. – When a reference plate (reference edge) assembly is removed, reinstallation requires alignment. Use a long shank (6–inch) Phillips screwdriver to adjust the rear screw holding the assembly in place. It is accessed through the hole in the main drive assembly between the RIP card cage and the main motor PCB. Adjusting the screw counterclockwise rotates paper counterclockwise in the MFP path.

  • Lexmar X422 Laser, 2-40 Service Manual 7001–001 (continued) Printhead Printhead cable HVPS RIP card assembly Cartridge contacts assembly If the voltages are correct, check the printhead cable for continuity. • If the cable measures continuity, replace the printhead. • If the cable does not measure continuity, replace the cable. See “High voltage power supply (HVPS)” on page 5-8 and verify the voltages. • If the +24 V dc and +5 V dc input voltage measurements are correct, replace the HVPS. • If the voltages are incorrect, replace the RIP card assembly. Note: Always check printhead alignment after repl

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