Scanner Unit - Epson Stylus PHOTO RX640 Service Manual

EPSON Stylus PHOTO RX640/650

4.2.3 Scanner Unit

1. Remove the Panel Assy. (p. 43)
2. Remove the Paper Support.
3. Lift the joint area of the USB Cover and remove the USB Cover by pulling it
toward you. Then remove the light-shield foam. (Fig. 4-8)
4. Disconnect the following FFCs and cables from the Main Board. (Fig. 4-9)
CN No. Color Connected to
CN5 White CR Motor Unit
CN12 (FFC) CCD Unit
CN13 Red TPU Unit
CN14 Yellow HP Sensor
5. Remove the screw securing the grand wire of the scanner.
6. Close the Scanner Unit, and remove the screws (x2) in the rear. (Fig. 4-10)
7. Remove the Scanner Unit, kept in the open position, from the printer body.
Put the FFC into the housing as shown. (Fig. 4-11)
Put the clamp portion of the black harness (red: CN 13) of the
TPU Unit into the printer body. (Fig. 4-11)
Route the harness as shown and set the ferrite cores in place,
and then stick the acetate tape. (Fig. 4-9)
USB Cover
Lift the joint area and
pull the cover toward you
Figure 4-8. Removing the USB Cover
Disassembly and Assembly
Remarks
4-pin (With ferrite core)
28-pin (With ferrite core)
2-pin
3-pin
Place the CR Motor harness
(CN5) on the light-shield foam
Light-shield foam
Figure 4-9. Disconnecting the cables (Scanner Unit)
C.B.P-TITE 3x10 (x2)
Torque : 0.6±0.1N
Insert the FFC
Removal of Exterior Parts
Place the harness in consideration
of Middle Cover position
Guide
C.B.P-TITE 3x8
·
Torque : 0.6±0.1N m
Ferrite Core
Tighten the screw while locating
CN13 CN5
·
m
Figure 4-10. Removing the Scanner Unit
Harness of the TPU Unit
Remove
Figure 4-11. Joint Area with the Printer
Revision A
Ferrite Core
CN14 CN12
the grounding wire so that it will
not come in contact with the
Middle Cover, which is to be
installed afterwards
Clamp position
45