CHAPTER 11 TROUBLESHOOTINGCOPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)11-6b. 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 iscopied.2.5±1.5mmSettingHigherLowerImage leading edge marginDecreasesIncreasesTable 11-202Figure 11-202Making Adjustments1) 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 againto end service mode.Relationship between Settings and Image Leading Edge MarginCaution:Be sure to check that the leading edge non-image width is as indicated before performing thisadjustment.