Ricoh FT8680 Service Manual page 223

PREVENTIVE MAINTENANCE SCHEDULE
Every 600K
1. Clean the registration roller using water.
2. Adjust the 2nd tray drive chain tension.
Every 1.2M
1. Replace the paper dust cleaning roller and the dust pan.
4. Duplex Unit (every 150K duplex copies)
1. Clean the pick-up roller and transport rollers using water.
2. Clean the anti-static brushes and paper end sensor.
3. Replace the paper feed roller and separation belts.
4. Adjust the tension of the timing belt.
5. Inspect the positioning roller and belt.
5. Document Feeder (every 150K originals)
1. Clean the pick-up, separation, and exit rollers using water.
2. Clean the inverter rollers using alcohol.
3. Clean the transport belt using belt cleaner or alcohol.
4. Inspect the friction tabs.
Every 450K originals
1. Replace the separation roller, the friction tabs, and the transport
belt.
Every 1.2M originals
1. Lubricate the roller bushings.
6. Around The Drum (every 150K)
1. Clean the casing of the charge, T & S, and Pre-transfer corona
units. Use water first and then use alcohol.
2. Replace the corona wires and the wire cleaner pads.
3. Clean the charge corona unit brush seal.
4. Replace the toner filter.
4-46
1 July 1995