Utax PF 420, Service Manual

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3MH
1-3-7
U034
(cont.)
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.
Adjustment: center line adjustment
1. Select group 2 using the image mode selection key.
2. Select the item using the exposure adjustment keys.
3. Press the interrupt key.
4. Press the start key to output a test pattern.
5. Change the setting value using the zoom +/- keys.
For output example 1, decrease the value. For output example 2, increase the value.
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.
Maintenance
item No.
Description
U071
(See the service manual
for the machine.)
U066
(See the service manual
for the machine.)
U034
Exposure
indicator Description Setting
range Initial
setting Change in
value per step
Exp. 1 (lit) Paper feed from cassette -7.0 to 10.0 -2.4 0.1 mm
Exp. 2 (lit) Paper feed from MP tray -7.0 to 10.0 0.0 0.1 mm
Exp. 3 (lit) Paper feed from first paper feeder -7.0 to 10.0 0.0 0.1 mm
Exp. 4 (lit) Paper feed from second paper
feeder -7.0 to 10.0 0.0 0.1 mm
Exp. 5 (lit) Paper feed from third paper
feeder -7.0 to 10.0 0.0 0.1 mm
Exp. 1 (flashing) Duplex mode -7.0 to 10.0 0.0 0.1 mm
Center line of printing (± 1.0 mm)
Correct image Output
example 1
Output
example 2
U072
(See the service manual
for the machine.)
U067
(See the service manual
for the machine.)
U034