Troubleshooting When There Is No Error Display; Troubleshooting For Printer - Epson Stylus PHOTO RX640 Service Manual

EPSON Stylus PHOTO RX640/650

3.3 Troubleshooting When There is No Error Display

3.3.1 Troubleshooting for Printer

This section describes repair/service of the Printer Mechanism. Listed below are various problems which may occur, observations of such problems, check point and remedies.
Faulty paper loading
Condition Cause
LD Roller and Retard Roller
dirty or worn
Paper is not
loaded.
Pick Up Roller and Idle
Roller dirty or worn
Operation of paper loading
mechanism is abnormal
PE Sensor/PE Lever
not operating properly
Several sheets of
Retard Roller operation is
paper are fed at
abnormal
the same time
Troubleshooting
Table 3-1. Diagnostics when feeder is abnormal
Check Point
Check to see if no Micro Pearl or oily substance is adhering to
the paper loading roller.
Check to see if no Micro Pearl or oily substance is adhering to
the rollers.
Check to see if there is no abnormality in the paper loading
mechanism.
Check to see if the PE Sensor connector has not been
disconnected from the sensor or Main Board.
Check to see if the Torsion Spring has been set on the PE Lever
properly.
Check for damaged PE Sensor.
Check to see if the tension spring on the Retard Roller is
disengaged.
Check to see if the Retard Roller is out of position.
Troubleshooting When There is No Error Display
Remedy
Clean the rollers using a cleaning sheet.
1. Set a cleaning sheet upside down in the ASF Assy.
2. Start paper feed with the panel button.
3. Repeat steps above several times.
To remove oils from rollers, staple a cloth dampened with alcohol to a postcard
and follow the steps below.
1. Set the postcard in the tray with the alcohol dampened cloth side facing the LD
Roller (or Retard Roller).
2. Start paper feed while firmly holding the upper edge of the card.
3. Repeat the paper feed operation several times to clean the surface of the LD Roller
(or Retard Roller).
If these steps do not correct the problem, replace both the LD Roller and Retard Roller.
Wipe the rollers with a cloth dampened with alcohol.
Adjust the phase of the paper loading mechanism.
Remove the dust and dirt, if any.
Connect the PE Sensor connectors to the sensor and Main Board CN10 properly.
Install the Torsion Spring on the PE Lever properly.
Replace the PE Sensor.
Install the tension spring properly.
Install the Retard Roller properly.
Revision A
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