Epson Stylus C87, Service Manual

Page: 73 / 109

EPSON Stylus C87/C88/D88 Revision A
DISASSEMBLY/ASSEMBLY Dissasembly Procedures 73
4.3.3.12 PW Sensor Board
1) Remove the CR Unit. (p70)
2) Remove the PW Sensor Cover. (See 4.3.3.11 Removing Printhead Assy.
Step 2)
3) Disconnect the PW Sensor FFC, and remove the PW Sensor Board.
Figure 4-71. Removing PW Sensor Board
4.3.3.13 CR Encoder Sensor Board
1) Remove the CR Unit. (p70)
2) Disconnect the CR Encoder Sensor FFC and the PW Sensor FFC from the CR
Encoder Sensor Board.
3) Remove the two screws that secure the CR Encoder Sensor Board to the IC
Holder, and remove the CR Encoder Sensor Board.
•C.P.B. (P1) 1.7 x 5:2
Figure 4-72. Removing CR Encoder Sensor Board
A D J U S T M E N T
R E Q U I R E D
When replacing or removing the PW Sensor Board, make sure to
perform the following adjustments in the order shown below.
1. Top Margin Adjustment
2. PF Adjustment
3. Bi-D Adjustment
4. Head Angular Adjustment
5. First Dot Adjustment
6. PW Sensor adjustment
Bottom
PW Sensor Board
PW Sensor FFC
„ When installing the CR Encoder Sensor Board, match the
positioning hole with the rib as shown in
Figure 4-72 .
„ The PW Sensor FFC should be attached to the location with
double-sided tape as shown in
Figure 4-72 .
A D J U S T M E N T
R E Q U I R E D
After replacing or removing the CR Encoder Sensor Board, make
sure to perform the following adjustments.
1. Top Margin Adjustment
2. PF Adjustment
3. Bi-D Adjustment
4. Head Angular Adjustment
5. First Dot Adjustment
6. PW Sensor adjustment
C.P.B. (p1) 1.7 x 5
Rear Side
Positioning Hole
and Guide Pin
CR Encoder
Sensor Board
CR Encoder
Sensor FFC
Double-sided
Tape Location