Canon BJC 6000 Service Manual - Page 137

Home Position, Error, <Cause&gt, <Suspected parts&gt

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BJC-6000 Part 5: Maintenance 4. Home Position Error The home position sensor fails to detect the home position. Home position sensor, carriage motor, paper feed motor, control board, carriage ribbon cable, and carriage board Visual check OK? Yes No Repair or replace faulty part Open the cover and switch on Check the carriage for smooth motion Visually check the carriage's motion. OK? Yes No Check the carriage motor 1 4 To next page OK? Yes To page 5-21 (1) Measurement points Normal value CN402 Pin No. 1-3 2-4 Approx.3 Disconnect the carriage motor cable from the control board before checking. No Replace the carriage motor 5-19

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<Cause>
The home position sensor fails to detect the home
position.
<Suspected parts>
Home position sensor, carriage motor,
paper feed motor, control board, carriage
ribbon cable, and carriage board
<Measure>
5-19
BJC-6000
Part 5:
Maintenance
4. Home Position
Error
1-3
2-4
Measurement points Normal value
Approx.3
1
4
Visual check
OK?
Repair or replace
faulty part
Open the cover and
switch on
Check the carriage for
smooth motion
Visually check the carriage's motion.
Yes
No
OK?
Yes
No
Check the carriage
motor
OK?
Yes
No
Disconnect the carriage motor cable
from the control board before checking.
Replace the carriage
motor
To page
5-21 (1)
To next
page
CN402
Pin No.