CBM1000 Service Manual

l Paper feed failure

Phenomenon

Cause

 

 

Check Method

 

Remedy

 

Paper is not fed or

Faulty connection of the

Check connection of the

Connect the

connector

fed irregularly

motor connector

 

motor connector.

 

 

 

correctly.

 

 

 

 

Defective motor

 

Measure the

supply

If the supply voltage is

 

 

 

voltage with a DC volt-

normal, replace the mo-

 

 

 

meter or oscilloscope.

tor.

 

 

 

 

Faulty DC output volt-

Check

whether

the

Use the

specified

AC

 

age from the

AC

specified AC adapter is

adapter.

 

 

 

 

adapter

 

used.

 

 

 

 

 

 

 

 

 

 

Low DC output voltage

Check

the

DC

voltage

Supply the specified AC

 

from the AC adapter

 

with a DC voltmeter.

voltage

to

the

AC

 

 

 

 

 

 

 

 

 

 

adapter.

 

 

 

 

Faulty control PCB assy

 

 

 

 

 

 

 

Replace the control PCB

 

 

 

 

 

 

 

 

 

 

assy.

 

 

 

 

Faulty mounting of the

Check mounting condi-

Mount the platen roller

 

platen roller

 

tion of the platen roller.

properly.

 

 

 

 

Paper feed failure

 

Check

whether

or

not

Eliminate

unnecessary

 

 

 

the paper is jamming or

paper in the paper path

 

 

 

torn and caught in the

and set paper properly.

 

 

 

paper path.

 

 

 

 

 

 

 

 

 

Foreign substance

in

Remove the gear holder

Eliminate

the foreign

 

the gear

 

and check for any for-

substance.

 

 

 

 

 

eign substance

caught

 

 

 

 

 

 

 

in the gears.

 

 

 

 

 

 

 

 

Broken gear

 

Remove the gear holder

If the gear is broken,

 

 

 

and

check

for

any

replace it with new one.

 

 

 

breakage of the gears.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

CITIZEN

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Citizen CBM1000 service manual Paper feed failure