Epson Stylus Pro 9500 Service Manual page 193

EPSON Stylus Pro 9500
Since the new pigment based firmware is written to
the flash ROM by this upgrade service
implementation, the display in the sensor adjustment
mode's LCD display is as shown below. The meaning
of each value is also shown below.
Panel Display: "Sen: Sensor Name A D ttt vvv"
ttt = Difference between the sensing level when there
is no paper and when there is paper. This numerical
value is shown in Hexadecimal and changes
depending on the printer's state.
vvv = Sensor detection level when there is paper.
The hexadecimal number during the adjustment
changes depending on the VR element's adjustment
level and the printer's state.
The mounting location of each sensor adjustment VR element on the Main
board is as shown in the following figure.
Adjustment
Range which is visible when the paper guide U
The function of each VR element is as shown in the table below.
Table 5-13. VR Element Function
P-EDGE Sensor
P-FRONT Sensor
P-REAR Sensor
o P_EDGE Sensor Adjustment
1. The self-diagnostic mode is started by turning on the Power switch while
pressing the following buttons.
n
Paper Feed – Button + Cut / Eject Button + Cleaning Button
Press the Paper Source button and select "Check: Test", then press the
Enter button.
Adjustment Steps
access cover is open.
Figure 5-13.
sensor VR element
VR1
VR2
VR3
Revision A
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