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EPSON Stylus PHOTO 950
Revision A
TROUBLESHOOTING
Overview
81
3.1.6.3 Unexpected Ink Out Error 1 (During Print Operation)
This section describes the procedures for solving the problem when unexpected Ink
Out errors occur. However, the problem described here is separate to the problem
described before when an Ink Out error occurred even though the ink cartridges had
just been replaced with new ones. This section covers Ink Out errors caused by head
hot errors which can occur when printing continues while several of the nozzles are
missing. The only way to solve this problem is to replace the ink cartridges, so this
section mainly describes the process by which the error occurs.
1
(Cont.)
Is the ASF
installed
correctly to the
printer
mechanism?
3. The PF motor harness routed correctly? If the harness is
routed incorrectly as shown in the illustration below, there
will be a gap between the ASF and the printer mechanism,
and the gears will not engage correctly. Furthermore, the PF
motor harness may also develop an open circuit.
4. Are the two protrusions at the left side of the ASF left side
frame correctly visible from the cut-away part of the
mechanism?
Table 3-16. ASF Driver Abnormal 1
Step
Check Point
Remedy
Correct Harness Condition
Incorrect Harness Condition
Left Side of the Printer
Mechanism
Protrusion 1
Front View
Bottom View
Protrusion 2
Right Side of the Printer
Mechanism
Table 3-17. Unexpected Ink Out Error 1 (During Print Operation)
Explanation step
Unexpected Ink Out Error 1 (During Print Operation)
1
A new head hot sensor function has been added to the Stylus COLOR
900/980. The background to this is given below.
1. Nozzles (number of internal PZTs) were added to cope with the
increase in printing speed.
2. The printhead drive frequency was increased.
Under the above conditions, the head becomes extremely hot when ink
cannot be supplied to the head, and in the worst case the PZTs can seize in
the same way as a vehicle engine.
2
The Stylus COLOR 900/980 does not have a CSIC, so removal and
reinstallation of prohibited ink cartridges caused the ink consumption
counter to become inaccurate, so that even if there was not even a single
drop of ink in a cartridge, the printer firmware would detect this
incorrectly and would cause printing characters to be generated at the
printhead with the danger of the condition in No. 1 above occurring, and
the result would be damage to the PZTs.
Содержание Stylus Photo 950
Страница 1: ...EPSONStylusPHOTO950 Color Inkjet Printer SEIJ01 015 SERVICE MANUAL ...
Страница 5: ...Revision Status Revision Issued Date Description A April 5 2002 First Release ...
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 25: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 53: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 91: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 132: ...C H A P T E R 5 ADJUSTMENT ...
Страница 158: ...C H A P T E R 6 MAINTENANCE ...
Страница 174: ...C H A P T E R 7 APPENDIX ...
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