Wincor Nixdorf TH420, Руководство пользователя

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For re fer en ce
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A typical receipt with text (contains some blank spaces) is approximately
12% dot coverage.
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A full line of text characters (every cell on the line has a character in it) is
approximately 25% dot coverage.
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Graphics are approximately 40% dot coverage.
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Barcodes are approximately 50% dot coverage.
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A solid black line is 100% dot coverage.
Troubleshooting the printer
The TH420 color printer is a simple, generally trouble-free printer, however
unexpected conditions my arise. For example, the power supply may be
disconnected or the thermal printhead may overheat.
The on-line, paper status, error LED on the operator panel may signal that
something is wrong. The light on the front right side of the printer is used
only to indicate when a form is inserted properly. It does not indicate an
error.
For some unexpected conditions, the printer communicates the information
to the host computer and relies on the application to indicate what the
condition is.
The information on the following pages describes some conditions that you
may encounter: conditions that you can easily fix, and others that you will
need to contact a service representative for.
You may be able to correct many of the conditions without calling for
service. However, if a condition persists, contact a service representative.
See “Contacting a service representative” at the end of this chapter.
If an unexpected condition has occurred, take the following general steps:
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Cycle the power of the printer and note its behavior.
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Check the on-line, paper status, error LED and compare its behavior to
the following table.
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TROUBLESHOOTING THE PRINTER