Maintenance
Inspection guide
The purpose of this Inspection guide is to aid you in identifying the intervals, based on page count, at which
parts must be Inspected (for visible physical damage), cleaned, or replaced.
If any unsafe conditions exist, find out how serious the hazard could be and if you can continue before you
correct the hazard.
As you service the machine, check for the following:
• Damaged, missing, or altered parts, especially in the area of the On/O 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
Use the following tables to determine when specified parts should be Inspected:
Lexmark CS720, CS725, and
C4150
Every service
call
Every 150K Notes
Media tray - All
Media tray side guides Inspect Check for correct positioning
Media tray length guides Inspect Check for correct positioning
Transfer module (ITM) Inspect Replace Ensure correct installation
Fuser Inspect Replace Ensure correct installation
Media feeders - All
Media tray pick tires Inspect and clean if needed Clean with a damp cloth
MPF pick tires Inspect and clean if needed Clean with a damp cloth
Paper path
Duplex path rollers Inspect
• Check for media fragments and tears
• Check for excessive toner build‑up on white
rollers
• Clean with damp cloth if needed
Miscellaneous
Toner spillage Clean Use a toner vacuum and cloth to remove all toner
spillage from the printer
5028
Maintenance
407
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