Epson Stylus CX4300 Service Manual page 50

EPSON Stylus CX4300/CX4400/CX5500/CX5600/DX4400/DX4450
Occurrence
timing Detailed phenomenon
CR position
When turning on the power, the Carriage
• Power on
Unit collides to the Change Lever
• Anywhere
located to the front side of the printer.
The Carriage Unit collides with the
• Power on
Guide Upper Unit when power is turned
• Anywhere
on.
TROUBLESHOOTING
Table 3-12. Check point for fatal error according to each phenomenon
Defective
unit/part name
1. Check if the PF Motor Connector Cable is connected to
J8 on the Main Board.
2. Check if the coil resistance of the PF Motor is about 4.3Ω
PF Motor
by using the tester
3. Check if the PF Motor Connector Cable is not damaged.
4. Check if the PF Motor operates.
1. Check if the Compression Spring 2.36 does not come off
in the Change Lever.
ASF Unit
Compression Spring 2.36
1. Check if the Paper Guide Upper Unit is correctly
assembled.
Paper Guide
Upper Unit
Troubleshooting
Check point
(refer to Table 3-1)
Change Lever
Paper Guide Upper Unit
Revision A
Remedy
1. Connect the PF Motor Connector Cable to J8
on the Main Board.
2. Replace the PF Motor with a new one.
3. Replace the PF Motor with a new one.
4. Replace the PF Motor with a new one.
1. Replace the ASF Unit with a new one.
1. Reassemble the Paper Guide Upper Unit to
the Main Frame correctly.
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