Removing The Tpu Carriage Unit - Epson Perfection 4490 photo Service Manual
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EPSON Perfection 4490 Photo
4.2.16 Removing the TPU Carriage Unit
When performing the procedure given below, be careful not to lose
C A U T I O N
the three torsion springs that apply tension to the TPU CR Drive
Belt .
1.
Remove the TPU Lower Housing.
2.
Remove the torsion springs.
See Section 4.2.15 on page 49.
When performing the next step, be careful not to lose the flat
C A U T I O N
washer that secures the Driven Pulley.
3.
Remove the flat washer that secures the Driven Pulley of the TPU CR Motor Assy.
and remove the Driven Pulley and TPU CR Drive Belt in that order.
TPU CR Drive Belt
TPU CR Motor Assy.
Figure 4-36. Removing the TPU CR Drive Belt
Disassembly / Assembly
See Section 4.2.13 on page 47.
TPU Carriage Unit
Drive Pulley
Flat Washer
4.
Remove the CN3 Connector from the DRV Board, and remove the two-sided tape
to remove the TPU Carriage Unit.
Figure 4-37. Removing the DRV Inverter FFC
When installing the DRV Inverter FFC, make sure to align the
positioning lines both on the FFC and the TPU Upper Housing
as shown in
sided tape.
See Section 4.2.15 on page 49
torsion springs.
Disassembly Procedure
Tape Position
Positioning Lines
DRV Inverter FFC
CN3
Figure 4-37
before attaching the FFC with the two-
for information how to attach the
Revision B
50
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