EPSON Stylus PHOTO RX640/650 Revision A
Troubleshooting Troubleshooting When There is No Error Display 31
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
Table 3-1. Diagnostics when feeder is abnormal
Condition Cause Check Point Remedy
Paper is not
loaded.
LD Roller and Retard Roller
dirty or worn
Check to see if no Micro Pearl or oily substance is adhering to
the paper loading roller.
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.
Pick Up Roller and Idle
Roller dirty or worn
Check to see if no Micro Pearl or oily substance is adhering to
the rollers.
Wipe the rollers with a cloth dampened with alcohol.
Operation of paper loading
mechanism is abnormal
Check to see if there is no abnormality in the paper loading
mechanism.
Adjust the phase of the paper loading mechanism.
Remove the dust and dirt, if any.
PE Sensor/PE Lever
not operating properly
Check to see if the PE Sensor connector has not been
disconnected from the sensor or Main Board.
Connect the PE Sensor connectors to the sensor and Main Board CN10 properly.
Check to see if the Torsion Spring has been set on the PE Lever
properly.
Install the Torsion Spring on the PE Lever properly.
Check for damaged PE Sensor. Replace the PE Sensor.
Several sheets of
paper are fed at
the same time
Retard Roller operation is
abnormal
Check to see if the tension spring on the Retard Roller is
disengaged.
Install the tension spring properly.
Check to see if the Retard Roller is out of position. Install the Retard Roller properly.