Ricoh FT 4015, Service Manual

Page: 122 / 229

1.2 REGULAR PM PROCEDURE
1. Make a copy Make a copy of an OS-A3 test chart at manual
image density level 4.
2. Optics (every 45 k) 1. Clean the reflector and 1st to 5th mirrors with
a silicone cloth.
2. Clean the 6th mirror and lens with a blower
brush.
3. Clean the exposure glass with a soft cloth
dampened with alcohol or water.
4. Clean the platen cover sheet with a soft cloth
dampened with water (replace every 90 k).
5. Lubricate the scanner guide rod with Grease -
CPL501.
6. Remove the oil on the scanner guide rail,
4th/5th mirror guide rail, and 4th/5th mirror
guide rod. Then lubricate them all with
Silicone Grease - G501.
7. Clean the blue filter with a silicone cloth.
3. Around the drum
(every 45 k)
1. Clean the transfer corona wire, the transfer
entrance guide plate, and the charge corona
grid with a blower brush or dry cloth.
2. Clean the end blocks and casings with a
blower brush or dry cloth.
3. Remove the old developer.
Replace the
transfer corona
wire and charge
corona grid
(every 90 k)
Every 45 k Every 90 k Others
Replace the
exposure lamp
(at 200 k)
PREVENTIVE MAINTENANCE SCHEDULE 20 December 1996
5-4