5.1 OVERVIEW
Problems in the printer
may exhibit a variety of
symptoms,
troubleshooting, unless you follow the procedure shown in the
s
START
5.2
5-2
Repair by
unit replacement
which can complicate
flowchart below.
5.3 5-14 5.4
5-16
5.5
5-19
Repair of the Repair of the
Repair of the printer
power supply board main\ drive board
mechanism
The fault is corrected
Figure 5-1. Troubleshooting Procedure
The following tables provide troubleshooting information.
Table 5-1. Motor and
Printhead
Coil Resistance
REV.-A
the task of
Part
I
Specifications
Carriage motor
I
Coil resistance 5.0 ohms
+\-
7% at 25 degrees c (77 degrees
F]
Paper-feed motor
Coil resistance 79.0
+\–
5 ohms at 25 degrees C (77 degrees F)
Printhead
Coil resistance 45.5
+\–
3.0 ohms at 25 degrees C (77 degrees F)
Table 5-2. Error Codes
Error Display
I
Error
I
Cause
Buzzer beeps 3 times for
0.1 second, with O. l-sec-
ond intervals.
Buzzer beeps 5 times for
0.5 second, with 0.5-sec-
ond intervals.
Paper-out error
Carriage error
. Printer is out of paper.
. Paper-end sensor is abnormal.
. Carriage motor is abnormal.
c
Carriage mechanism is abnormal.
● Carriaae motor driver current is abnormal.
5-1
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