Lexmark MX81 series - Removal Procedures; Base Printer - Cover Removals

7 Determine whether the printer passes or fails the skew specifications based on the values listed in the following
table:
Copy skew specifications
Measurement Specification Description
(CopyL2‑CopyL1) Less than or equal to 2.0 mm Left skew
(Copy R2‑CopyR1) Less than or equal to 2.0 mm Right skew
(CopyT2‑CopyT1) Less than or equal to 1.5 mm Top skew
(CopyB2‑CopyB1) Less than or equal to 1.5 mm Bottom skew
Copy registration specifications
Measurement Specification Description
(CopyL2‑CopyL1) Less than or equal to 1.5 mm Vertical registration
(CopyB2‑CopyB1) Less than or equal to 1.5 mm Horizontal registration
8 If the printer does not meet the skew specifications, adjust the reference edge as specified in “Media aligner roller
adjustment” on page 283.
9 Adjust the scanner registration manually as needed in the Configuration menu. See “Configuration menu” on
page 251.
Removal procedures
Keep the following tips in mind as you replace parts:
• Some removal procedures require removing cable ties. You must replace cable ties during reassembly to avoid
pinching wires, obstructing the paper path, or restricting mechanical movement.
• Remove the toner cartridges, imaging unit, and media tray before removing other printer parts. The imaging unit
should be carefully set on a clean, smooth, and flat surface. It should also be protected from light while out of the
device.
• Disconnect all external cables from the printer to prevent possible damage during service.
• Unless otherwise stated, reinstall the parts in reverse order of removal.
• When reinstalling a part held with several screws, start all screws before the final tightening.
Base printer - cover removals
• “Column left front cover removal (MX81x)” on page 296
• “Column left outer cover removal (MX81x)” on page 297
• “Column right inner cover removal” on page 298
• “Column right outer cover removal” on page 300
• “Left cover removal (MX71x)” on page 301
• “Left cover removal (MX81x)” on page 303
• “Left inner cover removal” on page 305
• “Rear door removal” on page 307
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Repair information
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