Epson LX-86TM Especificações descarregar pdf (Página 118)

REV.-A

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

Problem

Symptom

Cause

Checkpoint

Solution

Paper does not

● Sheet load-

The paper end

Verify that the switch

Replace the

pa-

feed correctly.

ing

mecha-

sensor is

clicks when the paper per end sensor.

nism does

defective.

end sensor lever is

not operate.

approached.

. Printing is

The paper release

Verify that the paper

re-

performed,

Place the lever in

but the paper

lever is not in the

lease lever is in the right

the right

right position.

is not fed.

position. position.

Foreign substances

Perform a visual check of Remove any for-

are caught in the

the paper path.

eign substances.

paper path.

The paper feed

Verify that no foreign . Remove the

motor does not

substance is lodged

be-

foreign

drive the gear

tween the gears and that

substance.

correctly.

the gears are not broken . Replace the

or worn. defective gear.

The paper feed

Mea%iure

the coil

resis-

Replace the

pa-

motor is defective.

tance of the paper feed

per feed motor.

motor.

. Resistance value: 58Q

794

The paper feed The backlash be-

Check the backlash.

Replace the

pa-

quantity is not tween the paper per feed

reduc-

uniform.

feed motor and

tion gear.

the paper feed re-

duction gear is not

correct.

Paper does not

The paper is Phases of the right Verify that the marks on Refer to Section

feed correctly.

fed aslant.

and left sprocket

the right and left sprock-

4.2.3.9 “Tractor

assembly do not et assembly are at the Unit

match.

same position.

Disassembly”.

Ribbon feed is

The ribbon The ribbon car- Verify that the ribbon is

Replace the

rib-

da fective.

does not feed.

tridge is defective.

fed when the ribbon car-

bon cartridge.

tridge is dismounted and

the knob is rotated manu-

ally in the direction of

the arrow.

Foreign substances

Verify that the ribbon

● Remove any

are caught in the drive gear rotates when foreign

gears, or the gear the carriage is moved

substances.

is worn.

manually to right and

● Replace the

left.

defective gear.

. Lubricate.

The ribbon is

The planetary

le-

Verify that the planetary

Replace the belt

fed only when

ver in the

car-

Iever

turns in reverse and

driven pulley

the carriage

tridge holder is

engages with the gear

assembly.

moves to the

defective.

when the carriage is

right

(or to the

moved manually to the

left).

right and left.

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