Utax cd 1116, Service Manual

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2DA/2DB
1-4-17
Maintenance
Description
item No.
U071 Adjusting the DP scanning timing
Description
Adjusts the DP original scanning timing.
Purpose
To be executed 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.
Caution
Before making this adjustment, ensure that the following adjustments have been made in maintenance mode.
U034 U066 U071
Method
Press the start key. The screen for setting an item is displayed.
Setting
1. Select the item to be set using the up/down cursor keys. The selected item is displayed in reverse.
2. Change the setting using the left/right cursor keys.
Display Description Setting range Initial setting
Change in
value per step
LEAD1 DP leading edge registration –32 to +22 0 0.2 mm
(simplex original)
TRAIL1 DP trailing edge registration –22 to +32 0 0.2 mm
(simplex original)
LEAD2 DP leading edge registration –32 to +22 0 0.2mm
(duplex original)
TRAIL2 DP trailing edge registration –22 to +32 0 0.2mm
(duplex original)
Increasing the setting moves the copy image backward, and decreasing it moves the copy image forward.
3. Press the start key. The value is set.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
1. Press the interrupt key. The machine enters the interrupt copy mode.
2. Set the original and press the strat key.
To return to the screen for setting, press the interrupt key.
Adjustment
1. In interrupt copy mode, make a copy using the DP.
2. Check the copy image and adjust the registration as follows.
For copy example 1, decrease the setting of LEAD1 or LEAD2.
For copy example 2, increase the setting of LEAD1 or LEAD2.
Original Copy
example 1
Copy
example 2
Figure 1-4-2
Completion
Press the stop/clear key at the screen for setting. The screen for selecting a maintenance item No. is displayed.