Resetting The Maintenance Counter; Lubrication Specification; Cleaning The Printer; Cleaning The Scanner Glass - Konica Minolta bizhub 4020 Service Manual

When performing the 200K scheduled maintenance procedure, the following areas should be cleaned
of media dust and toner contamination:

Media trays

Imaging unit area

Transfer roll area

Duplex area

Standard bin
8.2.2

Resetting the maintenance counter

Always reset the maintenance counter after installing the maintenance kit.
To reset the maintenance counter:
1. POR into the Configuration menu, and navigate to Reset Maintenance Counter.
2. Depending on the printer model, press OK or touch
without resetting the counter.
Once initiated, the operation cannot be canceled.

8.3 Lubrication specification

Lubricate only when parts are replaced or as needed, not on a scheduled basis. Use of lubricants other
than those specified in this service manual can cause premature failure. Some unauthorized lubricants
might chemically attack polycarbonate parts. Use Grease Nyogel 744.

8.4 Cleaning the printer

Note: You may need to perform this task after every few months.
Warning—Potential Damage: Damage to the printer caused by improper handling is not covered by
the printer warranty.
1. Make sure that the printer is turned off and unplugged from the electrical outlet.
CAUTION—SHOCK HAZARD: To avoid the risk of electrical shock when cleaning the exterior
of the printer, unplug the power cord from the electrical outlet and disconnect all cables from the
printer before proceeding.
2. Remove paper from the standard bin and multipurpose feeder.
3. Remove any dust, lint, and pieces of paper around the printer using a soft brush or vacuum.
4. Dampen a clean, lint-free cloth with water, and use it to wipe the outside of the printer.
Warning—Potential Damage: Do not use household cleaners or detergents to prevent damage to
the exterior of the printer.
5. Make sure all areas of the printer are dry before sending a new print job.

8.5 Cleaning the scanner glass

Clean the scanner glass if you encounter print quality problems, such as streaks on copied or scanned
images.
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to reset the counter, or press X to exit