EPSON Stylus CX4300/CX4400/CX5500/CX5600/DX4400/DX4450 Revision A
DISASSEMBLY/ASSEMBLY Scanner Section 99
4.8.3 Scanner Motor Unit/Driven Pulley
Part/Unit that should be removed before removing Scanner Motor Unit/
Driven Holder
Document Cover / ASF Cover / Support Arm / Scanner Unit / Upper Scanner
Housing
Removal procedure
1. Move the CIS Carrier Assy. to the center of the scanner.
2. Remove the polyslider washer from the Driven Pulley.
3. Push the Driven Pulley in the direction of the arrow to release the Timing
Belt, and remove the Driven Pulley.
4. Remove the Scanner Timing Belt from the Pulley.
Figure 4-101. Removing Driven Pulley
5. Release the Scanner Motor cable from the tabs (x6) of the Lower Scanner
Housing.
6. Remove the screws (x3) that secure the Scanner Motor Unit, and remove the
Scanner Motor Unit.
Figure 4-102. Removing Scanner Motor Unit
CIS Carrier Assy.
Timing Belt
Pulley
Rib
Driven Pulley Spring
Driven Pulley
Polyslider
Washer
Route the Scanner Motor Connector Cable as shown in the
figure. (refer to Figure 4-102)
Insert the Driven Pulley Spring into the rib of the Driven
Pulley. (refer to Figure 4-101)
When installing the Scanner Timing Belt, make sure to face its
jagged side inward.
A D J U S T M E N T
R E Q U I R E D
When the Scanner Motor Unit/Driven Pulley is reassembled,
perform the required lubrication. (Refer to Chapter 6 “
MAINTENANCE (p108)”)
C.B.P. 3x8 F/Zn (4.0±0.5kgfcm)
Tab
Scanner Motor Connector Cable
Scanner
Motor Unit
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