Canon NP6412 Service Manual page 438

CHAPTER 2 STANDARDS AND ADJUSTMENTS
b. Image Leading Edge Margin (registration activation timing)
Make adjustments so that the leading edge margin is 2.5 ±1.5 mm when the Test Sheet is
copied.
Caution:
Be sure to check that the leading edge non-image width is as indicated before performing this
adjustment.
Making Adjustments
1) Select '30' in service mode.
• The display will indicate '30'.
2) Press the Copy Start key.
• The existing setting will flash.
3) Change the setting using the +/- key.
• The setting may be between 0 and 99.
• The setting will change by 0.24 mm in terms of margin for each '1'.
4) Press the AE key.
• The setting will stop flashing and will remain on, indicating it has been stored in memory.
5) As necessary, press the Clear/Stop key once to return to item selection; or, press it once again
to end service mode.
Relationship between Settings and Image Leading Edge Margin
2-2
Figure 2-2
Setting
Higher
Lower
Table 2-2
2.5±1.5mm
Image leading edge margin
Decreases
Increases