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EPSON Stylus Photo R340/350
Occurrence
Timing
Symptoms
CR Position
• Occurrence
The printer does not start up at all by
Timing:
turning the power On.
At power-on
• CR Position:
Anywhere
• Occurrence
The initialization sequence at power-on
Timing:
is performed properly. However, a
During
communication error occurs (an error
operation
message is displayed on STM3 screen)
when a print job is sent to the printer.
• CR Position:
---
Troubleshooting
Table 1-4. Troubleshooting of Communication Errors based on Observed Symptom (continued)
Failed Part
Power Supply
Board Assy.
USB Cable
Printer driver
Main Board
Check Point
1. Check if the Power Supply Board cable is correctly
connected to CN1 on the Main Board.
CN1
2. Check if the Power Supply Board cable or the Power
Supply itself is damaged.
Power Supply Board
Cable
1. Check if the printer is correctly connected to the
computer with a USB cable.
1. Check if the Stylus Photo R340/350 driver is used for
the print job.
1. Verify that the model name written in the EEPROM on
the Main Board is correct.
Troubleshooting
Remedies
1. Correctly connect the Power Supply Board
cable to CN1 on the Main Board.
2. Replace the Power Supply Assy. with a new
one.
* If the problem still occurs after performing
the above remedies, replace the Main Board
Assy. with a new one.
Power Supply
Assy.
1. Correctly connect the printer to the computer
with a USB cable.
1. Install the Stylus Photo R340/350 printer
driver on the computer.
1. Correct the model name stored on the
EEPROM using the Market Setting menu in
the Adjustment Program.
Revision A
14

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Troubleshooting

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