Superficial Phenomenon-Based Troubleshooting - Epson Stylus CX7300 Service Manual

EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200 series/SX200 series/Stylus CX8300/CX8400/DX8400/NX400/TX400 series/SX400 series Revision C

3.3.3 Superficial Phenomenon-Based Troubleshooting

This section explains the fault locations of the error states (print quality and abnormal noise) other than the error states (LED and STM3) in the previous section.
Table 3-19. Check point for the error that multiple sheets of paper are always loaded without LEDs and STM3
Occurrence
timing Detailed phenomenon
CR position
The LEDs and STM3 are not indicating
• Operation
error conditions. But, multiple sheets of
paper are always loaded from the ASF
• –
Unit.
TROUBLESHOOTING
Defective
unit/part name
1. Check if the Extension Spring Retard operates correctly
in the paper loading sequence.
Backside of ASF Unit
ASF Unit
2. Check if the Paper Back Lever operates correctly in the
paper loading sequence.
Paper Back Lever
Error Indications and Fault Occurrence Causes
Check point
1. Set the Extension Spring Retard between the
Extension Spring Retard
2. Set the Extension Spring 6.45 between the ASF
Extension Spring 6.45
Remedy
Retard Roller Unit and the ASF Frame.
Frame and the Paper Back Lever.
Confidential
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