Epson LX-86TM Especificações descarregar pdf (Página 117)

REV.-A

Table 5-7. Printer Mechanism Unit Repair (cent’d)

Checkpoint

Solution

Reset the ribbon

cartridge.

Replace the

printhead.

Replace the head

cable.

Symptom

Cause

The ribbon car-

tridge is installed

incorrectly.

Problem

A specific dot is

not printed.

Check that the ribbon

cartridge is installed

correctly.

Printing is

abnormal.

Check the continuity of

the

printhead.

The

printhead is

disconnected.

Check the continuity of

the head cable.

Measure the coil resis-

tance of the

printhead.

See Fig. 5-3.

● Resistance value:

19.2

Q

A 10%

The head cable is

disconnected.

The

printhead

is

defective.

Replace the

printhead.

Verify that the dot wire is

not broken.

Replace the

printhead.

Insert the

print-

head or head ca-

ble firmly.

Verify that the

printhead

or head cable is firmly in-

serted into the

connector.

A dot is occa-

sionally not

printed.

The printhead or

head cable is not

connected

correctly.

Clean and

reconnect,

Check for foreign objects

in the head cable

connector.

The printhead is

defective.

The

printhead is

defective.

Verify that the tip of the

dot wire is not worn.

Verify that the tip of the

dot wire is not worn.

Replace the

printhead.

Replace the

printhead.

The overall

printing color is

light, or the

printing density

is not uniform.

The paper thick-

ness lever is not

set at the correct

position.

The ribbon life is

completed.

Check that the set posi-

tion of the paper thick-

ness lever is proper for

the paper.

Perform a visual check.

Place the lever in

the right

position.

Replace the rib-

bon cartridge.

The platen gap is

not properly

adjusted.

Perform adjust-

ment according

to Section 4.3.1

“Platen Gap

Adjustment”.

The printing is

misaligned dur-

ing bidirectional

printing.

The timing belt

tension is not cor-

rect, or defective.

Verify that the timing belt

is inserted firmly into the

carriage.

Check if the timing belt

is loose.

Reinsert the tim-

ing belt firmly.

Replace the belt

tension spring.

5-16

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