Preventive Maintenance; Safety Inspection Guide; Lubrication Specifications; Maintenance Kits - Lexmark E250DN - Govt Laser 30PPM Special Build Mono Taa Service Manual

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 in identifying unsafe conditions.
If any unsafe conditions exist, find out how serious the hazard could be and if it is safe to continue before
correcting 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

Lubrication specifications

FRUs are typically lubricated as needed from the factory. If not, lubricate only when parts are replaced or as
needed, not on a scheduled basis. Use of lubricants other than those specified can cause premature failure.
Some unauthorized lubricants may chemically attack parts. Use P/N 99A0394 (Nyogel 744) to lubricate
appropriate areas. Lubricate gears that were lubricated in the original part.

Maintenance kits

Maintenance kits include:
•
Fuser (P/N 40X2800, 40X2801, or 40X2802)
•
Exit guide (P/N 40X2834)
•
Tray 1 ACM feed tires (P/N 56P1820)
•
Transfer roll (P/N 40X2822)
Maintenance kits
Description
110 V maintenance kit
220 V maintenance kit
100 V maintenance kit
Part number
40X2847
40X2848
40X2849
4512-220, -230
Preventive maintenance
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