Epson Stylus PRO 7500 Service Manual page 229

EPSON Stylus Pro 7500
5.2.6.9 PF Encoder Sensor Installation Position Adjustment
This adjustment is performed to set the distance between the PF roller shaft (grid roller) and
PF encoder sensor in the proper position. Through this adjustment, the position of the PF
encoder sensor's emitter and receptor are set properly with respect to the slits in the loop
scale for the PF motor.
1. Loosen the 2 PF encoder sensor installation screws, then set the tool, #F764 on the
round hole side of the PF roller shaft, fitting the notched end against the PF encoder
sensor's emitter (outside).
2. Move the PF encoder sensor up and down so that it is in a position where the clearance
between the outside part of the PF encoder sensor and the notch in the tool, #F764
becomes uniform, then tighten the 2 PF encoder sensor installation screws.
Check the clearance at this part.
PF Encoder Sensor
Installation Screws
Figure 5-55. PF Encoder Sensor Installation Position Adjustment
Adjustment
Exclusive tool #F764
Adjustment Steps
Revision A
229