Parallelogram Image Adjustment - Ricoh B079 Service Manual

COPY ADJUSTMENTS: PRINTING/SCANNING

Parallelogram Image Adjustment

Do the following procedure if a parallelogram prints while adjusting the printing
registration or printing margin using a trimming area pattern.
The following procedure should be done after adjusting the side-to-side registration
for each paper tray station.
[C]
[D]
[E]
Use SP2-902-3 No. 11 (Printing Test Pattern: Belt Pattern Trimming Area) to
determine whether a parallelogram image appears. If the parallelogram pattern
appears, perform the following procedure.
1. Laser unit [A]
2. Bracket [B] ( x2)
3. Install adjustment cam [C] (P/N: A2309003)
4. Secure positioning pin [D] (P/N A2309004) with the two screws removed with
the bracket [B]. Do not tighten the screws at this time.
5. To adjust the position of the laser unit [E]
1) Adjust the laser unit position by turning the adjustment cam. (See illustration
above.)
2) Tighten the adjustment bracket.
3) Print the trimming area pattern to check the image. If the results are not
satisfactory, repeat steps 1 to 3.
B079/B082
CÓPIA NÃO CONTROLADA
[B]
[A]
B004R207.WMF
3-84
CÓPIA NÃO CONTROLADA
Turn
clockwise
Turn
counterclockwise
B004R515.WMF
SM