Specifications

REV.-A
5.2 REPAIR BY UNIT REPLACEMENT
When a problem occurs, you can separate a particular unit that is responsible for the particular problem
by referring to the symptoms listed below. Refer to Table 5-4, identify what the problem is, and then
perform the checks according to the corresponding flowchart.
Table 5-4. Symptoms and Reference Pages
Symptom
Contents
Reference Page
Printer fails to operate at time
“ Control panel LEDs do not light up.
5-4
of power on.
. Carriage and pump do not operate.
Error is detected.
o Error is indicated by LED or buzzer.
5-5
Print failure occurs during self
o Printing is not performed.
5-7
test.
“ Faulty printing - some of the dots are not printed.
“ Bad print quality (density, etc.)
Paper is not fed normally.
o No paper is fed.
5-8
“ Feeding is irregular.
“ Paper jam occurs.
Control panel does not
func-
“ When “LF” or “FF” switch is pressed in PAUSE
5-9
tion normally.
mode, no paper is fed.
. Each function cannot be controlled through control
panel.
“ PAUSE mode cannnot be selected.
o DIP SW cannot be set.
The printer does not function
. Self-test is executed correctly, however print data
5-10
normally in on-line mode.
from the host computer is not printed correctly.
o When printer is operated, an error occurs to the
host computer.
5-3