EPSON Stylus PHOTO 810/820/830

Revision B

3.3 Unit Level Troubleshooting

You can identify the troubles by using the checklist in this section after confirming the LED indication on the printer. If you connect the printer to your PC and see an error message on the STM3, you can short the total repair time. And, when you find out the defective parts, replace them by referring the Chapter 4 “Disassembling”. Following tables describe the error condition (LED and STM3), possible cause and check point.

The following is the example of how to use the table.

When the CR unit is out of the home position at the power on timing, the fatal error may be caused by the failure of the CR motor. Moreover, there are 3 possible causes on the CR motor failure.

[Note]

When the individual part of the Paper eject roller, PF motor and the Ink system unit is defective, replace the Printer mechanism to new one basically.

However, if the individual part is replaced to new one in the urgent case, disassembly/

reassemble it carefully by referring to Chapter 4.

Table 3-4. Fatale error condition and possible cause

Error condition

LED indication

Occurrence

CR position at the

Defective

Possible cause

Check table

STM3 message

timing

power on timing

unit/part name

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The CR motor connector cable comes off.

 

 

 

 

 

 

 

 

 

 

 

 

CR motor

The CR motor is defective.

 

 

 

 

 

 

 

 

 

 

 

 

 

The CR motor connector cable is damaged.

 

 

 

 

 

 

 

 

 

 

 

 

Holder shaft unit

The Paper return plate disturbs the rotation of the LD roller.

 

 

 

 

 

 

 

 

 

 

 

Outside HP

 

The PF motor connector cable comes off.

 

 

 

 

 

 

 

 

 

Power : Off

Power on

 

PF motor

The PF motor is defective.

 

 

Error : On

 

 

 

 

 

Fatal error

 

 

 

The PF motor connector cable is damaged.

Refer to Table 3-5

 

 

 

 

 

General error

 

 

 

 

 

 

 

 

Paper guide upper/left

The Paper guide upper/left comes off completely.

 

 

 

 

 

 

 

 

 

 

 

 

Pump unit

The Compression spring 1.764 comes off.

 

 

 

 

 

 

 

 

 

 

 

Anywhere

Main board

The Main board is defective.

 

 

 

 

 

 

 

 

 

 

Main frame

The Main frame is deformed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operation

-

Front frame

The Front frame is bent up.

 

 

 

 

 

 

 

 

Main frame

The Main frame is deformed.

 

 

 

 

 

 

 

 

 

 

 

 

 

Troubleshooting

Unit Level Troubleshooting

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