Drum And Drum Drive Section; Ink Supply Section - Ricoh C217 Service Manual

1.4 DRUM AND DRUM DRIVE SECTION

1. Main Motor
When the motor pulley has been removed from the motor and then
reinstalled, be careful of the position of the pulley on the motor shaft. (See
"7.4 MAIN MOTOR REPLACEMENT.")
2. Drum Unit
When removing and reinstalling the drum unit, be sure to engage the drum
drive gears correctly. (See "7.6 DRUM UNIT REMOVAL.")
3. Doctor Roller
Normally the doctor roller gap is not adjusted or changed. It tends to be
difficult to adjust in the field. If the gap becomes narrower, an uneven image
may appear on the prints. If it becomes wider, too much ink will be applied to
the drum screens, resulting in ink leakage from the drum.
4. Drum Master Clamper
1) When removing and reinstalling the drum master clamper, be sure to
position the three springs in the drum master clamper correctly.
2) Do not allow the inside of the clamping plate to become dirty with ink.
3) Do not use alcohol or other solvents to clean the inside of the
clamping plate. Use a cloth damped with water.
For all the above, see "7.8 INK ROLLER UNIT REMOVAL."
5. Ink Roller Unit
Do not disassemble the ink roller unit. Each part between the front and rear
side plates of this unit has been exactly adjusted to keep the doctor and ink
rollers parallel against the drum shaft in the production.

1.5 INK SUPPLY SECTION

1. Ink Pump
When the ink pump has been removed and reinstalled, be sure to adjust the
plunger position.
2. Ink Cartridge Installation
When you set the ink cartridge, firmly slide it in and push the set lever (to
which a green tab is adhered for identification) until it clicks in position. If it is
not set correctly, the ink in the cartridge will not be supplied to the drum.
C217 4-2 SM