Epson Stylus Pro 7400, Service Manual

Page: 304 / 428

EPSON Stylus Pro 7400/7800/9400/9800 Revision B
Adjustment Mechanical Adjustment 304
5.2.3 Paper Thickness Sensor Position Adjustment
After the P THICK 1 and 2 sensors are replaced, the newly attached sensors must be
checked for their detection accuracy as it varies depending on the attaching position.
The sensor attaching position can be checked by the Self Testing menu and conduct
this adjustment only when the test result is NG.
†
Required Tool
P THICK Sensor Position Jig (0.2/0.3/0.5/0.6)
†
Check Procedure
1. Enter into the Serviceman Mode.
Turn the printer ON while holding down the [Paper Source ], [Menu
], and [Paper Feed ] .
2. Select “SELF TESTING: Test” to enter the Self Testing menu.
[Menu ]
3. Select “Test: Sensor”.
[Paper Feed ] twice
→
[Menu ]
→
[Paper Feed ] once
4. Make sure that the Paper Set Lever is pressed down and check that “Sensor:
Paper 00” is displayed on the LCD panel. If the displayed value is other than
the “00”, the sensor position adjustment must be carried out.
→
Adjustment Procedure
5. Release the Paper Set Lever to set the P THICK Sensor Position Jig (0.2) to
the position shown in Figure 5-11 , and press the Paper Set Lever down.
Check that “Sensor: Paper 00” is displayed on the LCD panel.
If the displayed value is other than the “00”, the sensor position adjustment
must be carried out.
→
Adjustment Procedure
6. Release the Paper Set Lever to set the P THICK Sensor Position Jig (0.3) to
the position shown in Figure 5-11 , and press the Paper Set Lever down.
Check that “Sensor: Paper 10” is displayed on the LCD panel.
If the displayed value is other than the “10”, the sensor position adjustment
must be carried out.
→
Adjustment Procedure
7. Release the Paper Set Lever to set the P THICK Sensor Position Jig (0.5) to
the position shown in Figure 5-11 , and press the Paper Set Lever down.
Check that “Sensor: Paper 10” is displayed on the LCD panel.
If the displayed value is other than the “10”, the sensor position adjustment
must be carried out.
→
Adjustment Procedure
8. Release the Paper Set Lever to set the P THICK Sensor Position Jig (0.6) to
the position shown in Figure 5-11 , and press the Paper Set Lever down.
Check that “Sensor: Paper 11” is displayed on the LCD panel.
If the displayed value is other than the “11”, the sensor position adjustment
must be carried out.
→
Adjustment Procedure
9. Release the Paper Set Lever and check that “Sensor. Paper 01” is displayed on
the LCD panel.
10. After all the checking and adjustment are completed, perform the sensor self
testing again to ensure that the sensor position is set properly.
Figure 5-11. Paper Thickness Sensor Position Adjustment (1)
C A U T I O N
The following tests must be conducted with the Paper Set Lever
pressed down.
P THICK Sensor Position Jig