Konica Minolta DF-502, Service Manual, Page: 35 / 52

Field Service Ver. 1.0 Apr. 2005 5. Service Mode
13
DF-502
Adjustment / Setting
5.2 Setting in the Service Mode
5.2.1 ADJUST
A. ADF SUB ZOOM
Function Test Copy Adjust
Purpose/Use To adjust variations in machining and installation accuracy of different parts by varying
the scanning zoom ratio in the sub scanning direction when the Automatic Document
Feeder is used.
Setting/
Procedure
Press the Start key to start a test copy
cycle.
• The default setting is “100.”
Setting range: 87 to 113 (1 step: 0.4%)
Adjustment
Procedure
• Ready the test chart that comes with the
Automatic Document Feeder.
• Adjust so that deviation between length A
on the test chart and that on the copy falls
within the specified range.
Specifications
400 ± 6.0 mm
1. Make a full-size copy of the test chart.
2. Measure the length of reference line A on the copy to determine if the deviation falls
within the specified range. If it falls outside the specified range, perform the following
steps to make an adjustment.
3. Enter Adjust of the Service mode.
4. Select “ADF Sub Zoom” and press the [Yes] key.
5. Using [
▲
/
▼
] key, select the appropriate setting value.
6. Press the [Yes] key to validate the setting value selected in step 5.
7. Make another full-size copy of the test chart to determine the amount of error in
length A on the copy.
Adjustment Instructions
If length A on the copy is longer than the specifications, decrease the setting value.
If length A on the copy is shorter than the specifications, increase the setting value.
If a single adjustment procedure does not successfully bring the deviation into the
specified range, repeat steps 3 through 7.
4035D513AA
Reference line A: 400 mm
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