EPSON Stylus COLOR C70/C80
Revision A
Troubleshooting
Overview
93
3.1.6.9 Repair Handling Failure
This section describes the procedures for checking when a fatal error occurs when the
power is first turned on after the main board has been replaced. There is one cause for
this.
NOTE:
The unexpected ink out error which can occur when there is a mismatch
between the print head ID and the TG value in the EEPROM on the main
board does not occur when the main board is replaced with a spare part
board. This is because the default value recorded in the main board is
"SHARP", and so the combination of the main board being "EPSON" and
the head being "SHARP" which would otherwise cause an error does not
occur.
3.1.6.10 ASF Driver Abnormal 2
This section describes the ASF operation problems mentioned before in more depth.
The ASF problems that were mentioned previously dealt mainly with problems with
the structural parts on the right side of the ASF, but this section covers the procedures
for checking the causes of problems around the clutch mechanism. Most problems that
occur around the clutch mechanism involve noise. Follow the procedures below to
carry out the necessary checks.
Table 3-21. Repair Handling Failure
Step
Check Point
Remedy
1
Has the main board for
the Stylus COLOR C80
or C70 been installed by
mistake because the
boards have the same
name?
The EEPROMs on each board contain the model name
data. When the power is turned on, the model name data
that is stored in the ROM and the EEPROM data are
compared and checked, and if the model name is incorrect,
the printer develops a fatal error.
Table 3-22. ASF Abnormal 2
Step
Check Point
Remedy
1
Does noise
occur in the
ASF just as
the paper is
being fed?
Does noise
occur during
hopper reset
when the ASF
is driven in
the reverse
direction to
paper
feeding?
[Abnormal noise during paper feeding]
If the noise occurs at the point where the ASF starts operating in the
paper feed direction, carry out the checks in step 16 to step 19 of
Section 3.1.4.1 or 3.1.6.2.
[Abnormal noise during hopper reset (reverse drive)]
1. Check that the change lever for driving the ASF is correctly installed
to the shaft of the ASF. To check this, refer to the illustrations below.
If the end of the shaft is visible at point A, then it is set correctly. If
the end of the shaft is not visible at point B, the ASF change lever
has come loose from the shaft, and it should be pushed back on
again. Also check that the torsion spring is not loose or disconnected.
Explanation: If the ASF change lever comes loose, the stopper function
for the clutch will not work at all, so the LD roller shaft
will keep turning but paper will not be fed when required.
Correct Condition
Incorrect Condition
A
B
Torsion Spring
ASF Change Lever
Содержание Stylus Color C70
Страница 1: ...EPSONStylusColorC70 C80 Color Inkjet Printer SEIJ01 004 SERVICE MANUAL ...
Страница 5: ...Revision Status Revision Issued Date Description A July 31 2001 First Release ...
Страница 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 35: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 60: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 96: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 137: ...C H A P T E R 5 ADJUSTMENT ...
Страница 169: ...C H A P T E R 6 MAINTENANCE ...
Страница 182: ...C H A P T E R 7 APPENDIX ...
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