3MX
1-3-6
U071
Adjusting the DP scanning timing
Description
Adjusts the DP original scanning timing.
Purpose
Make the adjustment if there is a regular error between the leading or trailing edges of the original and the
copy image when the optional DP is used.
Method
1. Press the start key.
2. Select the item using the exposure adjustment keys.
3. Press the interrupt key.
4. Place an original on the DP and press the start key to make a test copy.
5. Change the setting value using the zoom +/- keys.
For copy example 1, decrease the value of exp.1.
For copy example 2, increase the value of exp.1.
Figure 1-3-2
6. Press the start key. The value is set.
Caution
Check the copy image after the adjustment. If the image is still incorrect, perform the following adjustments in
maintenance mode.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
Maintenance
item No.
Description
Exposure
indicator
Description
Setting
range
Initial
setting
Change in
value per step
Exp. 1
DP leading edge registration
(first side)
-32 to 32
0
0.2 mm
Exp. 2
DP trailing edge registration
(first side)
-42 to 32
0
0.2 mm
Exp. 3
DP leading edge registration
(second side)
-32 to 32
0
0.2 mm
Exp. 4
DP trailing edge registration
(second side)
-42 to 32
0
0.2 mm
Original
Copy
example 1
Copy
example 2
U071
U404
(P.1-3-13)
Summary of Contents for DF-420
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