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2. Adjusting the Leading Edge Non-Image Width ([3], No. 306; blank shutter ON
timing)
Activate [3] in service mode, select ‘No. 306’ (leading edge non-image width
adjustment), and make adjustments so that the image leading edge non-image width is
as indicated in Figure 10-202 when the Test Sheet is copied in Direct.
The copier varies the image leading edge non-image width by varying the timing at
which the blank shutter is closed.
You must make this adjustment whenever you have replaced the blank shutter
solenoid or the blank exposure assembly.
Leading Edge Non-Image Width
Figure 10-202
Reference:
6 mm or less in Reduce/Enlarge mode.
Making Adjustments
1) Activate [3] in service mode, and select ‘No. 306’ using the keypad.
• The copy count indicator flashes ‘No. 306’.
2) Press the Start key.
3) Change the value using the keypad.
• The value flashes.
• If the value is negative, ‘%’ turns on. To enter a negative value, press the % key,
then enter the value using the keypad.
4) Press the AE key.
• The value flashes as soon as it is entered.
• Press the Start key to start copying operation.
5) To change a value continuously, repeat steps 1) through 4).
6) Press the Clear key to return to selecting items.
The relationship between the setting and the image position is as follows:
• For each ‘1’ in the setting, the position shifts about 0.27 mm.
• ‘+’ increases the non-image width.
10-6
CHAPTER 10 TROUBLESHOOTING
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
2.0±1.0mm