Operation Manual

<Cause> The home position cannot be detected by the home

position sensor.

<Suspected Parts> Home position sensor, carriage motor, paper

feed motor, control board, carriage ribbon

cable, carriage board, DC cable

Part 4: Troubleshooting

BJC-3000

4-6

Visual check

Yes

Correct?

Replace the carriage

motor

Visual check of the

carriage unit operation

Repair/replace faulty

parts

Yes

OK?

Yes

OK?

Power on with the cover

opened

Carriage motor check

CN402

Pin No.

1-3

2-4

Measuring points Normal Reading

Approx. 3.3

Page

Go to

Page 4-8

(1)

Check for paper jams, wear/deterioration/dislocation of the

carriage belt, deformation of the carriage guide frame, scratching/

bending of the guide shaft, etc.

Move the carriage manually and check that it moves smoothly

and there is no abnormal noise or there is no major damage on

the carriage ribbon cable.

Check for the proper operation of the carriage unit, and that

no part is out of sync.

Disconnect the carriage motor cable from

the control board to check.

6. Home Position

Error