Canon iR3570 Series, Руководство по обслуживанию

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Chapter 14
14-14
F-14-10
14.2.1.5.2 Soiled Image Leading Edge
0007-7089
iR2270 / iR2870 / iR3570 / iR4570 / / iR2270N / / iR2870N / / iR3570N / / iR4570N / iR2230 / / / iR3530 /
<Cause>
This problem occurs when paper moves between the photosensitive drum and the transfer roller. When the photopositive surface comes close to or into contact with
the toner-coated surface of paper, the toner layer can become shifted toward the trailing edge of the paper. This problem tends to be conspicuous when the toner
layer is relatively high against the width of lines (about 0.2 to 0.6 mm) and, in addition, when the lines are at a right angle to the feed direction (axial direction of
the photosensitive drum).
<Field Remedy>
Use the following service mode item to decrease the developing bias, thus suppressing the symptom:
COPIER>OPTION>BODY>FIX-SMR
0: default
1: decrease the developing bias by a single step (-20 V)
2: decrease the developing bias by 2 steps (-40 V)
If '2' is selected, the lines can become thinner.
<Image Sample>