Superficial Phenomenon-Based Troubleshooting - Epson WorkForce 600 Service Manual

EPSON WorkForce 600/EPSON Stylus OFFICE TX600FW/BX600FW/EPSON Stylus SX600FW/ME OFFICE 700FW

3.3.3 Superficial Phenomenon-Based Troubleshooting

This section explains the fault locations of the error states (print quality and abnormal noise, ADF/Scanner's malfunctions) other than the error states in the previous section.
Table 3-21. Check point for the error that multiple sheets of paper are always loaded without error messages (p.68)
Table 3-22. Check point for the abnormal noise (p.69)
Table 3-23. Check point for the defective scanned image quality (p.69)
Table 3-24. Check point for the ADF's malfunctions (p.70)
Table 3-25. Check point for the defective printing quality (p.70)
Table 3-21. Check point for the error that multiple sheets of paper are always loaded without error messages
Occurrence
timing Detailed phenomenon
CR position
The LCD 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
Revision A
Remedy
Retard Roller Unit and the ASF Frame.
Frame and the Paper Back Lever.
Confidential
68