Riso V8000 Series, Technical Manual

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CHAPTER 7. PAPER EJECTION SECTION
Adjustment
1. Pinch Roller Position Adjustment
(1) Apply a marking agent to the pinch rollers and feed paper between them.
(2) Measure the width of the marks for the front and rear rollers, confirming that this is 3 mm ± 0.5 mm.
(3) If the pinch roller mark width falls outside the specifications, correct by running Test mode No. 489
(Front Pinch Roller Position Adjustment) for the front rollers and Test mode No. 490 (Rear Pinch
Roller Position Adjustment) for the rear rollers.
Range: -100 to +100 (-10.0 mm to +10.0 mm)
Units:
5 (0.5 mm)
Default: 0 mm
Positive values move the rollers toward the center of the paper, while negative values move them
toward the edge of the paper.
2. Paper Ejection Separator Gap Adjustment
Check and adjustment procedure
(1) Pull out the paper ejection unit, confirming that the gap between the paper ejection separators
and the paper drum is 1.4mm to 2.0mm at the two points indicated by arrows in the photograph.
(2) If the gap falls outside the specifications, remove the adjuster plates on both sides. (M4 x 8
screws on each side)
(3) Turn the adjuster screws to adjust the gap between the paper ejection separators and the paper
drum.
(4) Attach the adjuster plates so that the mounting screws are approximately in the center of the
slots. Check that the adjuster screws slide back and forth smoothly.
Symptoms
· If the gap is too small, the paper ejection separators will touch the gripper cover on the paper drum.
(The paper ejection separators may touch the gripper cover, but if the gap is in correct specification,
there is no problem.)
· If the gap is too large, paper jamming may occur, or paper may not be ejected correctly to the paper
receiving tray.
P0730
P0731
P0729
Paper ejection separator
Paper drum
Adjuster screw
Adjuster plate