Encoder Check - Epson Stylus Pro 4910 Service Manual

Epson Stylus Pro 4900/Epson Stylus Pro 4910

4.15.3 Encoder Check

This menu checks if the encoder operates normally.
Preparation
1. Turn the printer ON.
2. Start the Service Program and select
3. Refer to the following list and perform the test per repaired part.
Confirmation method per part
Repaired Part
1. Select [CR Encoder].
CR Encoder
2. Move the CR Unit manually.
1. Select [PF Encoder].
PF Encoder
2. Rotate the pinion gear of the PF Motor manually.
1. Select [Release Motor Encoder].
Release Motor
1. Select [ASF Motor Assy Encoder].
ASF motor
2. Rotate the scale of the ASF motor manually.
1. Select [ASF Sub Motor Assy Encoder].
ASF sub motor
2. Rotate the scale of the ASF sub motor manually.
1. Select [Edge Release Assy Encoder].
Edge Release Assy
2. Rotate the scale of the Edge Release Assy manually.
1. Select [Paper Press Motor Encoder].
Roll feeding motor
2. Rotate the scale of the roll feeding motor manually.
1. Select [ATC Motor Encoder].
ATC motor
2. Rotate the scale of the ATC motor manually.
1. Select [Cutter Motor Assy].
Cutter motor
2. Operate the cutter manually.
1. Select [IS Motor Assy Encoder].
IS motor Assy
2. Rotate the gear.
ADJUSTMENT
Encoder Check.
Procedure
Other Printer Checks and Adjustments
Confirmation Method
1. Confirm that the value of CR displayed on the panel is changed by the operation of
the CR Unit.
2. Decide the origin and operate the CR Unit. Then, confirm that the value displayed
on the panel is returned to the original value (value of the origin).
1. Confirm that the value of the PF displayed on the panel is increased by rotating the
pinion gear clockwise and decreased by rotating it counterclockwise.
2. Decide the origin and rotate the PF Scale. Then, confirm that the value displayed
on the panel is returned to the original value (value of the origin).
Confirm that the value of the Release Motor displayed on the panel is changed by the
rotation of the scale of the Release Motor.
Confirm that the value of the ASF displayed on the panel is changed by the rotation of
the scale of the ASF motor.
Confirm that the value of the ASF sub motor displayed on the panel is changed by the
rotation of the scale of the ASF sub motor.
Confirm that the value of the edge guide displayed on the panel is changed by the
rotation of the scale of the Edge Release Assy.
Confirm that the value of the roll feeding motor displayed on the panel is changed by
the rotation of the scale of the roll feeding motor.
Confirm that the value of the ATC motor displayed on the panel is changed by the
rotation of the scale of the ATC motor.
Confirm that the value of the cutter displayed on the panel is changed by the
operation of the cutter.
Confirm that the value of the maintenance displayed on the panel is changed by the
rotation of the gear.
Revision A
399
Confidential