<Symptom>
• LED does not light.
• The buzzer does not sound.
Test printing cannot be done.
• Operation buttons are ineffective.
<Cause>
The LED or the beeper is defective.
Buttons are defective.
Flexible cables are defective.
The control board is defective.
<Measure>
Part 5: Maintenance
BJC-50
5-24
2. Control Panel
Failure
Check conductivity of
the connection cable to
the control board.
Is it unplugged?
1. Replace the control
board.
Yes
No
2. Replace the print unit.
Replug the cable.
•
The LED or the beeper is defective.
•
The ASIC is defective.
•
See Fig. 5-8
Figure 5-8 Flexible Cables
Summary of Contents for BJC-55 Series
Page 1: ...BJC 55 SERVICE MANUAL Canon...
Page 34: ......
Page 50: ......
Page 73: ...Code page 860 Code page 863 2 23 BJC 50 Part 2 Product Specifications...
Page 74: ...Code page 865 Code page 857 Part 2 Product Specifications BJC 50 2 24...
Page 75: ...Code page 855 Code page 852 2 25 BJC 50 Part 2 Product Specifications...
Page 76: ...Code page 864 Code page 869 Part 2 Product Specifications BJC 50 2 26...
Page 78: ......
Page 106: ...Part 3 Operating Instructions BJC 50 3 28 This page intentionally left blank...
Page 108: ......
Page 160: ......
Page 164: ...4 ADJUSTMENT No parts need to be adjusted Part 5 Maintenance BJC 50 5 4...
Page 199: ...7 1 2 Control board Lower section 5 39 BJC 50 Part 5 Maintenance...
Page 200: ...Part 5 Maintenance BJC 50 5 40 This page intentionally left blank...
Page 206: ...PRINTED IN JAPAN IMPRIME AU JAPON CANON INC The printing paper contains 70 waste paper...