7–10
SERVICE MODE
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.
Item
AE scan lamp intensity automatic
adjustment
AE mode copy density (developing
bias) reference point adjustment
AE mode copy density (developing
bias) slope adjustment
Fixing heater temperature offset
Leading edge margin adjustment
(registration roller ON timing)
Leading edge non-image width
adjustment (timing at which the
blanking open/close shutter is
closed)
Page separation right side leading
edge registration adjustment (timing
at which the registration roller turns
ON)
Page separation right side leading
edge margin (timing at which the
blanking shutter closes)
Trailing edge fine adjustment
(timing at which the blanking open/
close shutter is opened)
Multifeeder trailing edge margin
adjustment (timing at which the
blanking open/close shutter is
opened)
Left/right margin adjustment
(DIRECT)
(home position for the blanking
slide shutter)
Settings
–26 ~ +26
–26 ~ +26
–50 ~ +50
0 ~ 63
0 ~ 63
0 ~ 63
0 ~ 63
0 ~ 63
0 ~ 63
0 ~ 15
Table 7-712-1
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.
Description
See p. 2-18.
See p. 2-18.
default:
0
See p. 2-18.
default:
0
default:
0
A higher setting delays the copy paper in
relation to the image, thereby decreasing
the margin.
default:
30
unit:
0.27 mm
A higher setting increases the leading edge
non-image width.
default:
38
unit:
0.27 mm
A higher setting delays the copy paper in
relation to the image.
default:
28
unit:
0.27 mm
A higher setting increases the leading edge
margin.
default:
38
unit:
0.27 mm
A higher setting decreases the trailing edge
margin.
default:
36
unit:
0.27 mm
A higher setting decreases the trailing edge
margin.
default:
26
unit:
0.27 mm
A higher setting increases both left and
right margins.
default:
9
unit:
0.27 mm
No.
301
302
303
304
305
306
307
308
309
310
311
Summary of Contents for NP6621
Page 4: ...ii ...
Page 8: ...vi ...
Page 48: ...3 2 IMAGE FAULTS ...
Page 49: ...3 3 IMAGE FAULTS NOT USED ...
Page 50: ...3 4 IMAGE FAULTS B Image Fault Samples not available ...
Page 80: ...4 16 TROUBLESHOOTING MALFUNCTIONS ...
Page 134: ...A 4 APPENDIX ...
Page 135: ...A 5 APPENDIX C GENERAL CIRCUIT DIAGRAM not available ...
Page 136: ...A 6 APPENDIX ...
Page 144: ...A 14 APPENDIX ...