Epson Stylus Color C70, Service Manual

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EPSON Stylus COLOR C70/C80 Revision A
Troubleshooting Overview 64
3.1.4 Troubleshooting with LED Error Indications
This section describes how to troubleshoot the problem when the printer indicates an
error at power on and can not print. The Stylus COLOR C70/C80 can detect the
following seven errors and indicates them with the LEDs, as shown below.
NOTE: No.5 ink low indication is not error, and it means just status indication
for the user.
NOTE: “–” means the LED is not affected by the error condition.
See the following tables which show the error conditions and corresponding possible
causes.
This section describes the procedures for solving the problem when an error is displayed.
Refer to the table below and carry out each check in the order given. If you are unsure of
the detailed procedures, refer to the section indicated in the table and use the instructions
given in that section as a reference.
Table 3-4. Error Indication
No. Error Status
Indication
Power Ink Load/Eject
1 Paper Out – – On
2 Double Feed – – On
3 Paper Jam – Off Blink
4 Ink out or ink cartridge out – On –
5 (Ink Low) – Blink –
6 Maintenance request Blink Blink Blink
7 Fatal error Blink On Blink
Table 3-5. Relationship between Error Indication and Presumption Cause
No. Error status Probable cause
1 Paper Out
(Refer to Section
3.1.4.1)
1. The paper feed roller's ability to pick up the paper has
dropped.
2. One or both of the two hooks that secure the hopper to the
ASF are disengaged.
3. There is a piece of paper lodged in between a paper load sub
roller and the PF roller.
4. The bushing at the left of the PF roller is dislodged from the
mechanism and is not rotating smoothly.
5. The powder coating on the PF roller shaft is extremely dirty
or has sections that are missing powder.
6. The EJ roller holder is not secured to the paper eject roller
shaft and is loose.
7. The bushings 5 are not securing both ends of the paper eject
roller shaft and the whole shaft is loose, or the shaft rotation
is not stable.
8. Some of the toothed rollers (star wheels) on the paper eject
frame have fallen down or are not secured properly.
9. The PE lever for the PE sensor is not installed correctly, or is
loose, or the end of the lever is broken.
10.The PE lever for the PE sensor is installed correctly, but the
lever does not operate correctly.
11.The spring at the bottom of the separation pad on the ASF
has come off and fallen down, and the paper cannot travel
correctly.
12.The EJ grounding wire or the PF grounding wire has come
off and is obstructing the paper path.
13.The surface of the linear scale that passes through the
underside of the carriage is contaminated with paper dust.
14.The space between the emitter and receiver of the photo
sensor on the underside of the carriage is blocked by paper
dust, or the linear scale is not in the middle position and
when the carriage is moved manually, it touches against the
emitter or the receiver.
15.The FFC is disconnected from connector CN1 on the circuit
board underneath the carriage, or when you try to push it in
it feels as if it can go in further.
2 Double Feed
(Refer to Section
3.1.4.1)
3 Paper Jam
(Refer to Section
3.1.4.1)