7-15
7
Abnormal X-cutter operation.
a. Defective X-cutter position switch.
b. Defective X-cutter DC motor.
c. Defective X-cutter.
Problem
Check Item
Cause
Remedy
Repair
See
Section
a. Defective X-
cutter position
switch
The X-cutter rotary cutter is
at the left or right end but
neither Pin 2 nor 3 is
continuous with Pin 1?
Alternatively, both Pin 2 and 3
are continuous with Pin 1?
Defective X-cutter unit.
Replace the X-cutter
unit.
3.3.1
3.3.3
3.3.4
3.3.5
3.4
3.6.1
3.7.1
3.8.1
3.8.2
3.10
3.11.1
3.12.1
Continuity between Pins 1, 2,
and 3 of the X-cutter harness
assy?
Defective X-cutter
harness assy.
Replace the X-cutter
harness assy.
3.3.1
3.3.3
3.3.4
3.3.5
3.4
During X-cutter operation, do
main CPU port P53 (Pin 52)
and port P54 (Pin 53) switch
to High level?
Defective pull-up
resistors R20 and R22.
Replace Main PCB
assy.
Replace R20
and R22.
3.3.3
3.3.4
When main CPU port P53
(Pin 52) and port P54 (Pin
53) are at Low level, is this
recognized by the main
CPU?
Defective main CPU#1.
Replace Main PCB
assy.
Replace
CPU#1.
3.3.5
3.5.1
b. Defective X-
cutter DC motor
When output is normal from
the main CPU#1 output ports
P15 to P17 (Pin 22 to Pin 24
[See Table 5.5-1]), does the
output between OUT1 (Pin 1)
and OUT2 (Pin 3) of the DC
motor driver #4 changes
alternatively between 0 V and
+24 V?
Defective DC motor
driver #4.
Replace Main PCB
assy.
Replace #4.
3.3.3
3.3.4
3.3.5
3.5.1
Continuity between Pins 4
and 5 of the X-cutter harness
assy?
Defective X-cutter
harness assy.
Replace the X-cutter
harness assy.
3.3.1
3.3.3
3.3.4
3.3.5
3.4
Normal resistance (approx.
30 ohms) between Pins 4
and 5 of the X-cutter harness
assy (DC motor resistance
value)?
Defective X-cutter unit.
Replace the X-cutter
unit.
3.3.1
3.3.3
3.3.4
3.3.5
3.4
3.6.1
c. Defective X-
cutter.
Does the rotary cutter rotate
when the DC motor rotates?
Defective X-cutter unit.
Replace the X-cutter
unit.
3.7.1
3.8.1
3.8.2
Cutting of only halfway?
Defective X-cutter unit.
Replace the X-cutter
unit.
3.10
3.11.1
3.12.1
Metal or other foreign
matter in the laminated
document.
Remove the foreign
matter.
3.3.1
3.3.3
3.3.4
3.3.5
3.4
Summary of Contents for LX-200
Page 1: ...SERVICE MANUAL MODEL LX 200 LX 900 LX 910D REVISED EDITION May 2000 ...
Page 4: ...Chapter 1 SPECIFICATIONS ...
Page 8: ...Chapter 2 MECHANISMS ...
Page 18: ...Chapter 3 DISASSEMBLY PROCEDURES ...
Page 60: ...Chapter 4 REASSEMBLY PROCEDURES ...
Page 107: ...Chapter 5 ELECTRONIC CONTROLLERS ...
Page 128: ...Chapter 6 MAINTENANCE ...
Page 151: ...Chapter 7 TROUBLESHOOTING ...