Unit Repair And Replacement - Epson DLQ-3000+ Service Manual

DLQ-3000+

5.2 Unit Repair and Replacement

This section contains flowcharts which let you isolate faulty units by following the flowchart for the
problem. Refer to Table 5-3 to determine the flowchart to follow.
Problem
The printer does not operate at
all.
The printer indicates an error
after turning on the printer.
Self-test does not print
properly.
Paper is fed abnormally.
The control panel does not
operate properly.
The printer does not operate
properly.
5-2
Table 5-3. Symptoms and Corresponding Flowchart


The LEDs and LCD on the control panel
indicate nothing.


Printer mechanism is not initialized.


1 or more LEDs go on or blink and a
message appears on the LCD.


After the printer mechanism is initialized, an
error is indicated.


The printer does not print.


1 or more dots are missing.


Low print quality


Monochrome print and color print switch
improperly.


The printer does not feed paper.


Paper feed length is irregular.


Paper jams frequently.


Control panel button operation does not
affect the printer operation properly.


Panel indication is improper.


SelecType mode does not operate properly.


Printer settings set through the control panel
are not effective.


The printer run the self-test properly, but
does not print data from the host correctly.


The printer does not print.


While the printer is in operation, the host
computer goes in an error status.
Description Flowchart No.
Flowchart 1
Flowchart 2
Flowchart 3
Flowchart 4
Flowchart 5
Flowchart 6
Rev. A