Disassembly Of Scanner Unit; Scanner Housing - Epson Stylus PHOTO RX640 Service Manual

EPSON Stylus PHOTO RX640/650

4.4 Disassembly of Scanner Unit

4.4.1 Scanner Housing

C A U T I O N
Once the Scanner Housing is removed, there is a possibility that
dust and dirt may enter the inside of the scanner body. Perform
disassembly and assembly of the Scanner Unit in an
environment that minimizes intrusion of dust and dirt.
Disassembly and assembly on a clean bench is ideal.
Perform disassembly and assembly with care not to damage the
document table (glass). In addition, never forget that a very
troublesome cleaning is required if dirt sticks to the inside of
the document table.
1. Remove the Scanner Unit (p.45)
2. At the rear of the Scanner Unit, insert a slotted screwdriver into the gap shown in
the figure, release the hook of the FFC Cover (inside), and remove the FFC Cover
by sliding it inward. (Fig. 4-41)
3. Remove the screws (x5) on the bottom of the Scanner Unit. (Fig. 4-42)
4. Remove the Scanner Housing, the hinge area in the rear of the Scanner Unit first.
When installing the Scanner Housing, the CR Shaft may come
off. To avoid such problem, with the Lower Housing placed in
the upright position, install the Scanner Housing, its front side
with the hooks (x4) first, while taking care not to cause
whitening. (Fig. 4-42)
Before installing the FFC Cover, route the FFC and harness as
shown below.
CCD Unit
HP Sensor Grounding wire
Disassembly and Assembly
A D J U S T M E N T
R E Q U I R E D
CR Motor Unit
Disassembly of Scanner Unit
When, in subsequent work, the CR Shaft or Carriage Unit is
removed, the scanner home position can be shifted from the
correct position. After reinstallation, therefore, adjust the home
position.
Refer to "5.1.3 Scanner Home Position Adjustment" (p.75)
FFC Cover
Figure 4-41. Removing the FFC Cover
Remove the hinge side first
C.B.P-TITE 3x10 (x5)
Torque : 0.6±0.1N · m
Hook (x4)
Figure 4-42. Removing the Scanner Housing
Revision A
Insert a slotted
screwdriver, release
the hook and slide the
cover
57