Adjustment Mode ('3') - Canon NP6621 Service Manual

OPERATIONS AND TIMING
E. Adjustment Mode ('3')
• To start the mode, press '3' on the numeric keypad and press the AE key.
• To select an item, press the appropriate number on the numeric keypad and then the Start key.
• To change the value, enter the appropriate value on the numeric keypad and then press the AE key.
• To deselect an item, press the Clear key.
• A press on the Start key will execute appropriate copying operations.
• If the number is negative, '%' turns ON. To enter a negative number, press the % key and enter the
number on the numeric keypad.
No.
301 AE scan lamp intensity automatic
adjustment
302 AE mode copy density (developing
bias) reference point adjustment
AE mode copy density (developing
303
bias) slope adjustment
Fixing heater temperature off set
304
305 Leading edge margin adjustment
(registration roller ON timing)
Leading edge non-image width
306
adjustment (timing at which the
blanking open/close shutter is
closed)
Page separation right side leading
307
edge registration adjustment (timing
at which the registration roller turns
ON)
308 Page separation right side leading
edge margin (timing at which the
blanking shutter closes)
Trailing edge fine adjustment
309
(timing at which the blanking open/
close shutter is opened)
Multifeeder trailing edge margin
310
adjustment (timing at which the
blanking open/close shutter is
opened)
Left/right margin adjustment
311
(DIRECT)
(home position for the blanking
slide shutter)
Note: A press on the Start key when in No. 305, 306, 307, or 308 makes copies in the mode that has been
effective before the activation of the mode; when executing No. 307 or 308, it is recommended that
page separation mode be selected before activating service mode.
3–114
Item
–26 ~ +26
–26 ~ +26
–50 ~ +50
Table 3-612-1
COPYRIGHT © 1998 CANON INC.
Settings
default:
See p. 3-129.
default:
default:
0 ~ 63 A higher setting delays the copy paper in
relation to the image, thereby decreasing
the margin.
default:
unit: 0.27 mm
A higher setting increases the leading edge
0 ~ 63
non-image width.
default:
unit: 0.27 mm
A higher setting delays the copy paper in
0 ~ 63
relation to the image.
default:
unit: 0.27 mm
0 ~ 63 A higher setting increases the leading edge
margin.
default:
unit: 0.27 mm
A higher setting decreases the trailing edge
0 ~ 63
margin.
default:
unit: 0.27 mm
A higher setting decreases the trailing edge
0 ~ 63
margin.
default:
unit: 0.27 mm
A higher setting increases both left and
0 ~ 15
right margins.
default:
unit: 0.27 mm
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Description
0
0
0
30
38
28
38
36
26
9