Epson LX-86TM Spezifikationen PDF herunterladen (Seite 116)

REV.-A

Table 5-7. Printer Mechanism Unit Repair

Problem

Symptom

Cause

Checkpoint

Solution

Carriage motor

The carriage

Foreign substances

Move the timing belt

Remove any

fore-

does not operate.

motor does not

are lodged in the

manually and check if

ign substances.

operate at all at

gears or

the carriage motor

power ON.

mechanism.

rotates.

The carriage

mo-

Measure the coil

resis-

Replace the

car-

ter is defective.

tance of the motor.

riage

motor.

. Resistance value:

Approx. 41.50

k

7%

(25”C)

Carriage does not

The carriage

Defective belt

driv-

Check for broken or

● Replace the

operate normally

motor rotates,

en pulley

assem-

worn pulleys.

belt driven

pul-

at power ON.

but the carriage

bly,

or belt driving

Iey

assembly.

(When the power does not move.

pulley on the shaft

● Replace the

is turned on with

of the carriage

carriage motor.

the carriage

manu-

motor.

ally moved to its

The timing belt is

cenTer

position.)

Checkthat timing belt is

Reinsert the

tim-

defective.

inserted correctly into

ing

belt.

the bottom of the

carriage.

Check if the timing belt

Replace the

tim-

is broken.

ing

belt.

The carriage Carriage

movs-

Check if the carriage Clean and

moves left

ment is not

moves smoothly when it

lubricate.

slightly and

smooth.

is moved manually.

stops.

Check if the tension of

Replace the belt

the timing belt is too

tension spring.

high.

Buzzer rings 5

The home position Use an oscilloscope to

Replace the

times.

sensor is

check the output home position

defective.

waveform.

sensor.

Printing is not per-

The carriage

The common Check the connector for

. Replace the

formed in

Self- moves, but wires of the head

the common wires of the

printhead

Test.

printing is not

cable are

head cable.

cable.

performed at

disconnected.

● Replace the

all.

The contact of the Check the connector

con-

printhead.

head cable con-

tinuity of the head cable.

nectors is poor.

The common

Check the continuity of

wires of the head the common wires in the

cable are

head cable.

disconnected.

Printing stops

The paper guide Verify that the paper

Reset the paper

before the end plate is not in the

guide plate is mounted in

guide plate.

of a page. right postion. the right position.

The paper guide is

Verify that the paper

Replace the

pa-

weak. guide is effective.

per guide plate.

5-15

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