Epson Stylus Pro 4900 - Page 394

Epson Stylus Pro 4900/Epson Stylus Pro 4910 Revision A
ADJUSTMENT Other Printer Checks and Adjustments 395
Confidential
Thermistor
(Main Board)
1. Select [Thermistor (Main Board)].
2. Confirm the value (A/D value) displayed on
the screen, and compare it with the threshold
value on the right column.
Range of A/D value:
44<n<240
(The smaller the value
is, the higher the
temperature becomes.
The values out of the
range are regarded as
the fatal error.
Paper Thickness
Sensor 1
1. Select [Paper Thickness Sensor 1].
2. Remove the Upper Rear Cover. (P. 195)
3. Insert/Remove paper into/from the
transmission and reception section of the
sensor.
Sensor Interrupted:
01h
Sensor not Interrupted:
00h
Paper Thickness
Sensor 2
1. Select [Paper Thickness Sensor 2].
2. Remove the Upper Rear Cover. (P. 195)
3. Insert/Remove paper into/from the
transmission and reception section of the
sensor.
Sensor Interrupted:
01h
Sensor not Interrupted:
00h
Paper Guide
Sensor
1. Select [Paper Guide Sensor].
2. Open and close the Paper Guide a few times.
Sensor Interrupted
(Guide Up):
01h
Sensor not Interrupted
(Guide Down):
00h
Maintenance Box
2 Lever Sensor
1. Select [Maintenance Box 2 Lever Sensor].
2. Switch the position of the lock lever of the
Maintenance Box2 to lock or unlock.
Locked:01h
Unlocked:00h
Table 4-8. Sensor Check
Repaired Part Procedure
Confirmation Screen
Display
Pickup Unit
Sensor
1. Select [Pickup Unit Sensor].
2. Remove the Right Cover. (P. 139)
3. Rotate the gear shown in the picture below
manually to shade or transmit the sensor.
Sensor Interrupted:
01h
Sensor not Interrupted:
00h
Table 4-8. Sensor Check
Repaired Part Procedure
Confirmation Screen
Display
Overhead view
Gear
Pickup Unit Sensor