Ricoh C211 Service Manual page 716

Tech
1. Mark the position of the shading piate as illustrated.
mm up
0.3
NOTE: the image density on the copies decreases when the shading plate is set too high.
2.
Loosen the screws which secure the shading plate, reposition up 0.3mm and then tighten screws.
3.
Confirm the adjustment by placing 5 originals with thin lines/characters similar to the figure illustrated
under symptom.
4.
Make 10 continuous prints of each original in the "Auto" cycle mode.
5.
*PRODUCTION COUNTERMEASURE:
The
lamp stabilizer and A/D conversion board have been modified. The lamp stabilizer slightly reduces the
intensity of the light output by the fluorescent lamp. The amplification of the A/D conversion board has been
increased (resistor R632 changed) to compensate for the CCD output voltage decrease caused by the
reduced light intensity.
Mark
Optics Fraone
Continued