Ricoh FT6645 Manual page 223

23 April 1993
4. Development unit
(every 120 K)
5. Paper feed
(every 120K for each
Feed Station)
6. Transfer belt unit
(every 120 K)
Replace the
transfer belt
(every 240 K)
7. Duplex unit
(every 120 K)
PREVENTIVE MAINTENANCE SCHEDULE
4-1. Remove the developer.
4-2. Clean the development unit and gears.
4-3. Pour a pack of new developer.
4-4. Replace the air filter.
4-5. Clean the toner bottle holder and toner
receiver.
4-6. Lubricate the bottle drive mechanism.
[Grease G-501]
5-1. Clean the paper guide plates and vertical
transport/relay rollers.
5-2. Replace the paper feed, pick-up, and
separation rollers.
Note:
The feed (pick-up, feed, separation) rollers
for the 1st ~ 3rd feed trays are different from
the feed rollers for the by-pass feed table
and 3.5 K LCT.
There is no interchangeability.
5-3. Clean the registration sensor.
5-4. Lubricate the transport guide lock pin.
6-1. Clean the transfer belt.
6-2. Replace the transfer unit cleaning blade.
6-3. Clean the belt drive/guide rollers and bias
Surlier.
7-1. Replace the separation roller and separation
belts.
7-2. Clean the feed and transport rollers.
7-3. Lubricate the duplex positioning pins.
4-69