Lexmark X548 Series, Service Manual

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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
Scheduled maintenance
Customer replacable units (CRUs)
The following parts also need to be checked for wear or damage, and replaced if necessary.
Maintenance kit
After 60,000 printed pages (sides), a maintenance kit may be required. It is necessary to replace the fuser
assembly, ITU, and duplex reference plate to maintain the print quality and reliability of the printer. The
parts are available as a maintenance kit with the following part numbers:
Part number Description Replacement life
40X5168 Pick tire replacement CRU 120,000 pages (sides)
40X7545 ADF separator roll replacement CRU 60,000 pages (sides)
40X8419 ADF separator pad replacement CRU 60,000 pages (sides)
Description Part number
115 V Maintenance kit (115 V fuser, ITU, duplex reference edge) 40X2254
230 V Maintenance kit (230 V fuser, ITU, duplex reference edge) 40X2255
100 V Maintenance kit (100 V fuser, ITU, duplex reference edge) 40X2261