Epson Stylus PhotoR280 Service Manual page 62

EPSON Stylus Photo R280/R285/R290
4. Remove the three screws and remove the Main Board Unit.
• Screw (2 pcs.): C.B.P.(P2) M3x8 (tightening torque: 5-7 kgf.cm)
Screw (1 pc.): C.B.S. M3x6 (tightening torque: 7-9 kgf.cm)
•
(The numbers shown in the figure indicate the order of tightening the screws.)
[Upper Side]
2
Positioning Holes
and Guide Pins
1
Main Board Unit
Figure 4-19. Removing the Main Board Unit (2)
Whenever the Main Board Unit is replaced, the required adjustment
must be carried out.
• Refer to "5.1.2 Required Adjustments" (p.99)
When installing the Main Board Unit, be careful of the following:
Match the positioning holes with guide pins shown in Fig.4-19.
Insert the rib of the Main Board Unit into the positioning hole
of the Cable Holder Frame as shown in Fig.4-19.
Tighten the screws in the order given in Fig.4-19.
Chapter 4 Disassembly/Assembly
(No.9)
(No.1)
[Left Side]
3
Rib
4.3.1 Main Board Unit (Removing Control Boards)
After connecting the cables, secure them with acetate tape
following the procedures below.
1. Route the Power Supply Cable closely along the Lower Shield
Plate M/B, and secure the cable with acetate tapes at the
positions A, B, and C (30 mm each) as shown in Fig.4-20.
2. Avoiding the sharp edge shown in Fig.4-20, secure the
following cables with the acetate tape D (50 mm).
Power Supply Cable
•
• CR Motor Cable
• PF Motor Cable
PE Motor Cable
•
• APG Sensor Cable
Positions of Acetate
tape A, B, C
A
B
Power Supply Cable
C
A
D
B
C
D
Align the upper left end
of acetate tape D with
Edge of Lower
the edge of the Lower
Shield Plate M/B
Shield Plate M/B.
Figure 4-20. Routing the Cables
Revision B
Main Board Unit
Lower Shield Plate
M/B
Sharp edge
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