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Epson Stylus Photo R310 Service Manual: Unit Level Troubleshooting

Color inkjet printer.
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EPSON Stylus Photo R300/R310

1.3 Unit Level Troubleshooting

You can identify the troubles by using the checklist in this section after confirming the
LED/LCD indication on the control panel or the error message displayed on STM3 of
the PC connected to the printer. As a result, you can save the whole repair time. When
finding any faulty parts, refer to Chapter 2 "ASSEMBLY/DISASSEMBLY" and
replace them. Following tables describe the error conditions (LED/LCD and STM3)
and their possible cause.
Occurrence Timing
Phenomenon Detail
Position of CR
At power-on
When turning on the power, the printer
Anywhere
does not operate at all.
When turning on the power, the
initialization is performed correctly.
At operation
However, a Communication Error is
displayed on STM3 even transferring the
printing job to the printer.
TROUBLESHOOTING
Table 1-4. Check Points for Communication Error to Each Phenomenon
Faulty Part/
Part Name
1. Check if "Power Supply Board Cable" is connected to
the CN2 on "Main Board".
Power Supply
2. Check if "Power Supply Board Cable" is not damaged.
Board
1. Check if the correct model name is written in EEPROM
Main Board
on "Main Board".
1. Check if "USB Cable" is connected properly between
USB Cable
the printer and the PC.
1. Check if the Stylus Photo R300/R310 Printer Driver is
Printer Driver
used for the printer job.
Unit Level Troubleshooting
The following is the example of how to use the tables.
Example)
When "Carriage Unit" is out of the home position at the power on timing,
the Fatal Error may be caused by the failure of "CR Motor". Moreover,
there are 3 possible causes on "CR Motor" failure.
(Note)
When individual part that makes up "Roller EJ Assy.", "PF Motor" and "Ink System
Assy." is defective, replace the Printer Mechanism with a new one basically. However,
if an individual part needs to be replaced urgently, execute the necessary operation by
referring to Chapter 2 "ASSEMBLY/DISASSEMBLY".
Check Point
Revision A
Remedy
1. Connect "Power Supply Board cable" to the
CN2 on "Main Board".
2. Replace "Power Supply Board" with a new
one.
* If the problem still occurs, replace "Main
Board".
1. Write proper Market Setting in the Adjustment
Program.
1. Connect the printer and the PC with a "USB
Cable".
1. Install the Stylus Photo R300/R310 Printer
Driver in the PC.
14

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Troubleshooting

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