Epson Stylus Pro 4910 Service Manual page 107

Epson Stylus Pro 4900/Epson Stylus Pro 4910
2nd PE Sensor
Detects paper fed from the
Paper Cassette.
(p197)
Release Motor Assy
Contacts/Separates the Feed Roller.
(p198)
Release Sensor
Detects the position
(contact/separate status) of
the Feed Roller.
(p182)
PF Motor
The motor to drive the
Feed Roller.
(p183)
PF Encoder
Detects the PF Scale pattern to
control the paper feeding
(operation of the PF Motor).
(p184)
PF Scale
DISASSEMBLY & ASSEMBLY
(p192) Paper Thickness Sensor1, 2
(p195)
Detects the thickness of paper
being inserted into the printer.
(p185)
PF Belt
Figure 3-6. Paper Feed Mechanism
(p188)
PE Sensor
Detects paper fed from the Paper Cassette
or the Roll Unit.
Parts Diagram
(p193)
PW Sensor
Detects the width of paper on the platen.
This is a reflective photo interrupter and
detects the difference of the amount of
reflection between paper (white) and the
platen (black).
Edge Release Assy
Functions as follows:
1. Operates the Edge Guide.
2. Switches the eject position.
Edge Sensor
Detects the open/closed status and
pressure of ASF Edge guide.
(p186)
Suction Fan
Sucks paper to the platen so as
to stabilize the position of paper
when printing.
Revision A
(p199)
(p201)
108
Confidential