Adjusting The Developing Bias - Canon NP6330 Service Manual

CHAPTER 11 TROUBLESHOOTING
7 Adjusting the Developing Bias DC Component [3] No. 302
Make adjustments according to the Image Adjustment Basic Procedure.
Making Adjustments
1) Start [3] in service mode, and select No. 302 using the keypad.
• The indicator indicates '302'.
2) Press the OK key.
• The indicator flashes the stored setting.
3) Using the keypad or the Zoom keys, change the setting.
• The indicator flashes the setting.
• To enter a negative setting, press the % key.
4) Press the OK key.
• The setting is stored.
• The indicator stops flashing and remains on.
5) Press the Clear key to start copying.
The settings and the developing bias have the following relationships:
• For each '1' of the setting, the output of the developing bias DC component
changes by about 5 V.
• A higher setting decreases the developing bias DC component, making the
copies darker.
• A lower setting increases the developing bias DC component, making the copies
lighter.
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COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)