Preventive maintenance 6-1
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6. Preventive maintenance
This chapter describes procedures for printer preventive maintenance. Follow these recommendations to help
prevent problems and maintain optimum performance.
Safety inspection guide
The purpose of this inspection guide is to aid you in identifying unsafe conditions.
If any unsafe conditions exist, find out how serious the hazard could be and if you can continue before you
correct the hazard.
Check the following items:
• Damaged, missing, or altered parts, especially in the area of the on/off switch and the power supply
• Damaged, missing, or altered covers, especially in the area of the top cover and the power supply cover
• Possible safety exposure from any non-Lexmark attachments
LEXMARK X860de, X862de,
X864de
EVERY SERVICE CALL EVERY 300K NOTE
MEDIA TRAY—PRINTER
2TM/TTM
Media Side Guides Inspect Inspect Check for correct positioning
Media End Guide Inspect Inspect Check for correct positioning
Separation Pad Inspect Clean Damp cloth
Tray Lift Gear Group Inspect
MEDIA FEED UNIT—PRINTER TTM
Feed Roll Inspect Replace Verify page count before replacing
Pick Roll Inspect Replace Verify page count before replacing
Separation Roll Inspect Replace Verify page count before replacing
MPF feed roll Inspect Clean Water or alcohol
Transport Roll Assembly Clean Water or alcohol
Sensor (registration) Clean Brush or blower brush
Sensor (tray 2 feed-out) Clean Brush or blower brush
MEDIA FEED UNIT HCF (if equipped)
Feed Roll Inspect Replace Verify page count before replacing
Pick Roll Inspect Replace Verify page count before replacing
Separation Roll Inspect Replace Verify page count before replacing
HCF Transport Roll Assembly Clean Water or alcohol
Front Edge Guide Inspect Check for correct positioning
Rear Edge Guide Inspect Check for correct positioning
Long Edge Guide Inspect Check for correct positioning
Separation Pad Inspect Clean Damp cloth
TRANSFER ROLL
Transfer Roll Inspect Replace
FUSER UNIT
Fuser Unit Inspect Replace
Sensor (fuser exit) Clean Blower brush
DUPLEX
Duplex Transport Roll (2) Clean Water or alcohol