Press Roller Release Lever Adjustment - Ricoh DD 4450 Service Manual

Printing

4.9.2 PRESS ROLLER RELEASE LEVER ADJUSTMENT

Purpose: To maintain the correct clearance between the press roller arms and press roller lock
levers. This ensures that the press roller is correctly released and pressed against the drum when
the press roller release solenoid is energized.
Standard: 0.6 to 1.2 mm
Tools: A thickness gauge
Front cover ( p.4-6 "Front Cover, Operation Panel")
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Rear cover ( p.4-10 "Rear Cover")

1. Turn the drum manually until the drum master clamper on the drum moves into the lowest
position. (This is when the high points of the cams on the drum flanges meet with the cam
followers on both ends of the press roller.)
To find out the correct position of the drum for the adjustment, look at the rear end of the

drum shaft. The recess on the drum drive gear meets the hole [A] in the bracket when the
drum is in the correct position.
2. Using a thickness gauge, measure the clearance [B] between the press roller arm [C] and the
press roller lock lever [D] (rear side). It should be between 0.6 and 1.2 mm.
3. If it is not correct, adjust the position of the press roller lock lever after loosening the two
screws [E].
4. Repeat steps 2 and 3 for the front side.
C279 4-56 SM