Sharp MZ-80P6 Service Manual

0

SHARP

SERVICE

Dot Printer

MODEL

MZ-80P6

I>f\CIG

2">.1.8~

oo

,

(_o

~

''

MA.

KU

'

MANUAL

PDSM881

009-MZ

Printing paper

•

Character printing

•

Bit image printing

•

Paging

•

Tabulation

•

Feed

•

Copies

•

• Alarm bell

Bi-directional printing

•

Printing ribbon

•

inch

10

to

4

character

Four

possible

vertical

for

bell sounds

with

use

mode)

be

can

is

nes

li

of

and

line

also possible

is

bi-directional

logical seeking.

of

easily

Printing

Number

Both

,Switch

Control

Simultaneous

Alarm
paper, etc.

Along
the
space

lt

because a special

FEATURES

fanfold

width

possible.

are

sizes

dot

with

printed

by

copies,

on

horizontal

paper feed and paper feed

line

through

up

warn the user

to

in

put
cartridge

paper

units.

page

1

tabulation

software.

pages

3

to

printing,

(Except

and taken

ribbon

8.3

.and

be

can

control

including

mechanical

of

there

for

out
used.

is

8.5 inch

to

determined.

possible.

is

in

original,

the

very effective

is

image

bit

without

getting ones hands

width

page

trouble,

printing

printing

units.

are

lack

or

possible.

sheet paper.

printing

of

thanks to

line

non

for

dirty

SHARP

CORPORAT

ION

·

------

----

Contents-

- -

--

-----

Specifications
Precautions
Explanation

before servicing .

MZ-80P6

of

Troubleshooting

head

supply

of
of
ink

of

section

printer

main

ribbon

Adjustment

Power
Functions
Replacing

Replacing

Repair procedure

diagram and

Circuit

Packing

Disassembled

method

views .

Replacement parts

CPU

driving

printer

for

printed

0 0 0 0 0

ist

I

0 0 0 0 0 0 0 •

board

. .

...

parts

parts

cartridge

from
printer

••••••••

0 0 0 0 0 • 0

.....

.

....

0 0 0 0 0 0 0 0 •

..

energizing

coil

0 0 0 0 0 •

0 • 0 0 • 0 0 0 • 0 0 0 0

...

•••••

0 0

0 0

mechanism

board

wiring

0 0 0 0 0 0

•

••••

••

0 0 • 0 0

••

pulse

0 0 0 0 0 0 0 0 •

••••••••

•••••••••

0 • • •

0 0 0 0 •

•••

0 0 0 • 0

••

••

•••

•••••••

width

•••

0 0 0

0

0 0 •

• 0 • 0 0 0 0 0 0

0 0 0 0 0 • • • • • • • • • • • • • • • • • • • • • • • • •

••

1

2

3

7

15
16

17

22
36

39

54

60
61

65

SPECIFICATIONS

• General

Item

Printing

Feed

Kinds

Character make-

Line-to-line

No.

Page

Printing

method

method

of

of

digits

speed

characters

space

Specification

Serial

impact

dot

matrix

Variable sprocket feed
tion

feed

selectable manually

230 kinds

I

8(H) x 9(W)

up

I

size

character)

1/6 inch or determined by pro-

gram

80 digits,
digits or determined by program

66 lines/page (line
or determined by program

80

cps (characters per second)

(ordinary

dot

matrix

40

digits, 136 digits,

size

characters)

space

or

fric-

(normal

mode)

Item

Printing

Copies

Printing paper

Ink

Head

Interface

68

Power

Power

Working temperature! 5

Storage temperaturf;)

paper

thickness

ribbon

life

supply

consumption 75W

Fanfold
Cut
wide}

Max.
original)

Within

Special

Approx.
dot

character

8

bit

AC

220V

AC

240V

to

I

-20

Specifications

paper

paper sheet

of

3 copies

0.3mm

cartridge

50

million

printing)

parallel

35

to

±1

±

°C

50°C

interface

0%

10%.

(4-1

0

inch wide}.

(8.3-8

(including

ribbon

characters ( 14

50Hz

50Hz

.5 inch

Printing direction

• CPU

CPU

ROM

1/0

IC
Other IC's
Head drive

TR
Step

TR

---

Board

Item

counter

motor

-

Bi

-

direction
of
direction
and non line
character printing.

Section

Specifications

8085A
8039P-6 (Step

2732

2716
8155

17

2SD986

2SD986

(Data process

*

(8085A

CG-ROM}

(8039P-6

X

8

X

8

character

for

motor

control

control

for

I

ine

printing.

bit

image

space

1/

0)

control)

and

ROM}

space

mode

mode

Uni-

printing

of

External -dimensions

Weight

• Power Supply

Item

Input

Output

* ROM

2732

(I

C16}

ordered separately

different

MZ-808
MZ-80K

MZ-80A

(Under development)

Host

by the

comput

I

App!fOX.

377(W}x

(including

Approx.

352(D)

an

assistant guide)

7.2

kg

x

1

05(H)mm

Unit

Specifications

AC

220V

±1

0% 50Hz

AC

240V

±1

0%

50Hz

DC

26V

(21.5

to

26.5V}

DC15V
DC

because the programs being stored

computer

Types

.er

.

5V

is

not

standard and needs

to

be

of

ROM

Applicable model

MZ

-8BP5R

MZ-8KP5R

(Under development}

MZ

-

8AP5R

(Under development)

connected.

of

to

ROM

be

are

Note: Specifications and appearance

the explanation here may

be

a

are

little

subject

different

to

change

from

-1-

without

the

product.

prior

notice

for

improvement.

In

such a

case,

I

PRECAUTIONS

•

The

printer

damaged
taining

Fix

•

Do
operating.

•

The

down

• Do

•

When servicing
fuzz

•

There
to

•

There

proof
replacing

screws.)

•

To
do

or

the

mechanism

not

apply

print

sufficiently.

not

print

and

dust

are

page

63,

are

etc.

hold

the

not

hold

by

repairing

head

two

64

screws

during

new

the

BEFORE

mechanism

vibration,

:

external

becomes

when

and

from

types

for

parts.

printer

paper

is

etc.

the

printer.

again

0

111111111

H

111111

111'

Remove the fastening screws

the

ink

checking

th~

inside,

of

oil,

oil

points.)

and

nuts

transport.

(Refer

mechanism

sensing device

fixed

during

with

these

Il

l 0 °

0

11111111111

°

0

force

very

ribbon

a

and

G2

which

Paint

to

to

the

transport.

to

the

hot

so

is

loose.

printer

oil

and

are

page

only,

SERVICING

chassis

with

four

screws

screws

print

do

that

the

02.

fixed

the

screws

63,

hold

and

the

Remove

when

head,

not

touch

has

been

mechanism.
Use

the

and

to

64

for

at

the

paper

these

transporting

such

as

it

with

used

proper

oil

then

locked

lock

them

the

pointsto

points

illustrated

guide

section.

by

for

screws

the

touching

your

a

long

for

each

with

after

be

to

keep

when

printer.

hand

time,

oil

point.

paint

for

disassembling

painted

below.

it

from

being

using, main-

it

when

until

it

cools

remove

(Refer

vibration-

to

lock

Especially

it

dirt,

and

the

is

-2-

EXPLANATION

• Construction

Model MZ-80P6

and power supply,

consists

as

illustrated below.

Control

Logic

(8085)

Logic

(8039)

of

a

switches

1

2

locig

OF

1,

logic

MZ-80P6

2,

print

head driver,

Print

head

driver

Motor

driver

motor

driver,

printing

~--------·

I

I

I

I

I

I

I
I

I

'

I

I

I

I

mechanism,

Printing

Print

Timing

Paper

I

L._

________

mechanism

head

belt

feeding

Sensor

control

motor

motor

switches,

I

I

....J

• Explanation

1.

Block

diagram

The

printer

print

head

ROM's

are
processor
The

8155
256 bytes
to

the parallel interface,

rates

1/0

and

control

Interface
(Option

of

Logics

employs

control,

2732

and 2716. The

8085,

and the

is

a

RAM

of

which

ports and

bus

from

terminals)

STATUS

and Drivers

two

microprocessors,

and the

RAM

latter

for

stepping

former

latter

processing programs

with

1/0

ports and

136

bytes

are

used

print

head drive

(128 bytes), and connected

the 8085,

Print
drive

through

head
circuit

8085

and

8039.

motor

control

stores processing programs and condensed characters

for

counter/timer

for

storing data and the rest

circuit,

the

control

1/0

ports. The

The

and

8039.
and

used

bus

to

to

the stepping

RAM

former

control

in

for

the

8039,

is

used

is

primarily

switch

conjunction

a

work

area. The

and display

motor

drive

as

a

work

Motor

CPU,

RAM

used

input

process. Employed

with

the 8085. Its

1/0

circuit.
circuit,
area.

drive

8039

,

1/0

PORT

for

data process and

for

ports

are

The

8039

external

Sensor

sensor

circuit

external

the

micro-

capacity

connected

incorpo-

circuit,

is

-3-

IRT

~

Power

supply

I

2. Reset circuit

switching

At

(1)

circuit

The

of

use

(10KS1)

IC13

resets

8039.

momentary

At

(2)

+5V

If

Whereby,

circuits

drive

the

When

drive

the
power

forms

charging

a

and

8085,

power

all

power

circuits

supply.

power

of

on

reset

a

time

capacitor

a

IC12

interruption
supply

circtJits

the

the

from

supply

from

supply

signal

a

of

C9

8155,

and

reduced

is

are

voltage

turned

is

faulty

making

by

resistor

(47pF)

and

turning

below

reset

drop

off,

operation

17

R

and

IC21

off

approx.

momentary

at

the

of

a reset

+5V

due

ISI~§

RIG

IOOlt

~~ilv,......_+-~

......

CLAMP'

~

C5

IOOOP

I

power

of

4V,

power

line.

is

signal

the

to

+5V

4

Rl7

f

IOK

,.+

il~C9

,..,47)l/16V

supply

clamping

the

supply

generated

residual

IC5

LSI4

13

ll

voltage

IC5

LS14

3

12

Z2

Leading edge
power

is

circuit

interruption

same

the

at

determined

RESET

+5V

supply

actuated

protect

to

of

time

by

/

/

/

---:~"

-

/

of

1

~i=::::::!..._

signal

Reset

form

to

the

interruption

constant

time

the

____

a reset

programs

protect

to

signal.

and

the

of

_

+15V

8155

3.

136

the

Data

mulator
those
above

responding

of

one
When
shortest

printing

The

from

+5V

Reset

(256 bytes RAM, with

RAM in

the

of

bytes

working

a

for

rest

)

RD

to

(RD

listed

mentioned

8155.

the

piece

character

8155

the

1

of

of

printing

employed.

is

has

8039.

the

in

to

data.

the

With

also

8

8085

character

RAM
character

the

printing

made.

is

a

To

8085

signal

the

area.

the

from

where

code

up

image

data

function

STATUS

8039

DOT

ONLINE

POWER

FROM8039

8085

+5V-v-

~~-.-.-=-.-.-.-.~CL~.-.-.-~r-.-.-.-~

I

H:5msec/div

1V/div

Pin V:

@

V:1V/div

Pin

®

waveform

ports and timer)

1/0

are

8155

parallel

identified

is

it

or

table,

line.

one

to

from

data

data,

print

input

are

image

the

In

timer

the

of

-

RDA

p24

TIMING

LED
LED

2MHz

RST7.5

power

at

for

used

interface

whether

image

When

character

the

they

and

printing

and

PC
PC1
PC

PC3
PC4

PCs

TIMER

TIMER

H:20msec/div

switching

supply

character

the

input

is

the

data.

print

line

one

generator

stored

not

are

printed,

being

and

timing

the

o

2

IN

OUT

8155

from

data

If

data

condensed

the

of

on

code

1/0

the

character

is

data

the

accumulated,

are

(2732)

the

in

available

an

dot

half

PAo

~

PA7

o

PB

\

PB7

Reset

storage

ports

are

and

RAM

mode,

is

-

RD

RDs

PIN1

PINS

8085

signal

area

(PA
data,

character

outputs

but

space

formed

l

)

s

of

to

one

PA

at

7

waveform

0

control

data,

8085

the

pattern

the
output

are

judged

is

mono-directional

the

receiving

by

power

line

and

)

code,

they

reads

to

and

supply

character

stored

code

are

dot

the

to

to

PBo

bi-directional

the

signal (2MHz)

clock

switching

codes

the

in

other

stored

patterns

PBo

in

PB1

quick

and

accu-

than

the

in

cor-

PB1

to

every

return

off

-4-

bytes

4.

8039

8039

The

1 A and

PM

motor
PM2B,
from
Signals

(8039

P2

7

Square

(CPU with

to

and

8085,

the

for

wave

128

primarily

used

is

Bare

1

PM

select normal characters

HOLD3

data

READY).

of

control

input

communication

2KHz

5. Print head drive circuit

dot

pattern

dot

If

Dot

head.
head drive
modulated
increased at

and

timing

pulse

a

with

voltage), and

low

pulse

400J,lsec

of

power

-

r

and

RAM

controlling

for

driving

a

pulse

the paper feeding

DB

to

8

D

to

0

between

signaling the buzzer

for

I

At

A

8155PC2

FROM

SW

FEED

SW

T.O.F

EADY P

8039R

triggers

pulse are

the

timing

(at a power supply voltage

supply

- -

voltage

energy supplied

the

Print

ports)

1/0

the

of

characters/line)

(80

.

7

8085

o

~

s

output

through

555

of

drive pulse

head

the stepping

belt

timing

motor.

8039

and

output

is

o

DB

7

DB

t

22

P

20

P

P24
P

25

26

P

27

I

from

circuit

a

(the pulse-duration

26V

the

to

generator-

Z07

0525.6

~

signals

LD2

HO

by

P

from

current
duration

power

- -

control

decoding

(from

4

2

flows

pulse

pulse

generated

are

output

PM1A
PM1B

PM2A

PM2B

HOLD1
HOLD2

HOLD3
BUZZER

electric

short

print

control

head drive

outputs

and

functions

input

.

P

1 7

Pto
P11
P12
Pt3

4

P1

Pts

6

Pt

lt

HO LD1 and

and

to

motor.

motor,

condensed characters ( 136 characters/line).

or

These

are

from

p17

IC8155,

port

/0

generating

for

. The

24V)

of

reduced at high

is

whereby constant.

is

head

print

,----

26

R

0/2W

68

R25

151<

201<

26v

PIN I

PIN

3

from

the

1 0

timing

1 7

belt

P

to

P

PM2A,

PC

the

)

2

print
print

data

and

control

8155

through

produce

to

pulse-duration

is

supply voltage and

-

sv

"""2"

-

016

2SD986

f

•

I

I

CCN2)

I

I
I

I

I

I

Br:5..5P<3

~

IN

M

I

T

DOT

I

PULSE

L _ _

lll

Waveform

__

V : 1 V

(at

Circuit

_

--

JMf

ii

r

500J.,Lsec

H:

/div

printing)

test

forming

--

at

----

/d

iv

555

T062504P

pulse

pin

®

IC

3

of

-- -

I

____

l

short

----_

RES

C21

­OUJ

0

I

_

duration

r-

r-

V : 1 V /

Waveform

-,

4

Cl9

IOQOP

I

1

PIN

5

PIN

7

PIN

8

PIN

3.3)(

xSl

31<

3.

(RA2

I

I

I_.

-----

circuit----

drive

head

Print

-

--

-

--

L

r-

.\

1

\.

~

f'-

_J

-

I I

I

:500J.,Lsec/div

test

(at

printing)

V : 1

OV

I

/div

H

~

r--

div

test

at

500J.,Lsec

H:

point

-

-

-

__

:___

_

(at

div

/

test

--

printing)

CN2G)to@terminals

'--

-5-

6. Timing

When

o~f

to
when
line.

In

pulse

to

If

both
flows
the step-out

belt

HOLD1

pass

+26V

HOLD1

both

PM1A
HOLD

through

motor

drive

signal

current

signal

modes, the

and

PM1

1 and

the stepping

of

the stepping

circuit

is

low

is

high and

print

B.

HOLD2

and

through

head

signals

motor

motor

HOLD2

signal high, the

the stepping

HOLD2

is

driven

are
through
due

to

motor.

signal

is

from

turned

the

R2

vibration

018

In

this

low,

current

left

to

right,

high,

both

( 120f2/5W).

etc.

while

2SB743

018

the stepping

case,

of

or

The

is

the mode

+15V

vice

versa

and

intention

019

turned

on and the

is

SO-characters/line.

flows and the mode

by

transmitting

are

turned

of

motor

off

the

holding

is

standing still.

019

2SB743

is

136-characters/

motor

and a

holding

current

is

turned

Contrarily,

drive sequence

current

is

to

prevent

7. Paper feeding

When

HOLD3

In

this situation, paper

signal

is

high, a

~

.\

I I

"

I I

...

-

V:10V/div

CN2

@

to

@

r--------

motor

signal turns

holding

~

~

.\ \

r-.,

...

~

H:5msec/div

terminals

---

drive

current

\.:,

(At

circuit

low,

is

fed

r\

-

test

printing)

- - --

CN2@

the

by

transmitting

is

passed

:6~

017

through

-

\J.

1\

--

V:10V/div

to

@terminals

is

turned

motor

:5

:-

N

\

r-

-

H:2msec/div

(At

test

on

to

pass

drive sequence pulse

the R 1 (

120f2/5W).

r------

I

I
I

1

I

I I

I

I

-

-l

\

\

a

printing)

current

of

+26V

through

to

PM2A

and PM2B. When

---------------

+

15V

the stepping

motor.

HO

LD3

HOLD 2

-~

I

I
I

I

I

:

HOLD

HOLD

I

I

I

3

---'=Q

I

I

I

I

ICIB

LS04

Paper

1>"'---<..._-/~5~+--+---+---28

circuit

D8

5!12778

ICI

LSO!S

feeding

motor

drive

-6-

I

24---11---+--+---.<~1---+---'~

I

I

I

I

I

_L

__________________

Timing

belt

motor

P.:...-.!::.OC

drive

circuit

_ _

T·

ROUBLESHOOTING

NO

CPU

BOARD

Go

to

SUPPLY

"CHECK

CIRCUIT".

OF

POWER

NO

NO

NO

NO

NO

Go

Go

Go

Go

c Go

Go

to

to

to

"CHECK

to

"CHECK

to

"CHECK

to

"CHECK

"CHECK

"CHECK

OF

OF

OF

OF

OF

OF

Go

BELT

LED

SW

CIRCUIT".

LINE

FEED

TOP OF

PRINT

TIMING

to

"CHECK

MOTOR

CIRCUIT".

CIRCUIT"

FORM

HEAD

DRIVE

BELT

OF

CIRCUIT".

.

CIRCUIT"

CIRCUIT"

MOTOR

TIMING

.

. )

CIRCUIT".

NO

NO

Go

-7-

Go

Ch e

to

to

"CHECK

ck

OK

"PAPER

interfac

FEEDING

OF

PRINTER

e cards.

MOTOR

INTERFACE

DRIVE

CIRCUIT"

CIRCUIT".

.

CHECK
MOTOR

OF

TIMING

CIRCUIT

BELT

NO

NO

NO

NO

Check

Check
circuits.

Check

Check

8039

circuit.

IC2, IC6,

018

and

8039

circuit.

and

020

.

surrounding

74LS05

TD62003P

2S8743

S5277B

Refer

to

waveform

(Page

6).

Check

belt

timing

motor

YES

.

NO

NO

-8-

Check

Check

IC2

01

and

to

04.

IC18.

74LS05

74LS04

2SD986

CHECK
CIRCUIT

OF

LED

CHECK

OF

SW

CIRCUIT

No

NO

NO

Check

8085

Check

pattern.

Check IC6.

Check

LED

circuit.

TD62003P

SW

circuit.

Check

8085

Check

chip

circuit

.

Check IC9.

Check IC15.

circuit.

select

74LS32

74LS244

-9-

CHECK
MOTOR

OF

PAPER

DRIVE

FEEDING

CIRCUIT

Check

LED
Check R30, R33,
and C25.

Check IC19.

Check

SW

TC40H004P

8039

circuit.

board.

CHECK
CIRCUIT

Check
Check

OF

TOP

LED

SW

R29

, R32, and C24.

OF

board.

FORM

Check IC1, IC6, and
surrounding

Check

Check

Check

Check

017

and D18.

8039

IC1

, and IC18.

05

to

circuits.

circuit.

08.

Check IC19.

74LS05

TD62003P

2SB743

S5277B

74LS05
74LS04

2SD986

Check paper feeding
motor.

-10-

555

~

8085

Check

Check reset

timing

Check
generator

IC19

Check
surrounding

.

circuit

circuit.

pulse

circuit.

and

circuits.

.

555

Connect

Check

Check

Check

cable.

IC11.

IC10

8085

74LS244

.

75189

circuit

.

Check

print

YES

head.

Check

Check

Check

IC3

8085

09

and

to

021.

TD62504P
2SA1015

.

circuit

.

016

2SD986

-

11

~

CheckiC3.

8085

Check

IC3.

Check

TD62504P

circuit.

TD62504P

-

ASSOCIATION
CIRCUIT

WITH

B039

Check

Check

oscillator

circuit.

Correct
"START"

Check

reset

and

IC21.

circuit.

back

step.

to

CHECK
CIRCUIT

OF

8085

Check

oscillator

circuit.

Check reset

circuit.

Check

IC18

pattern

discontinued.

Check

IC20

Check IC21,
pattern

touch.

or

.

or

8039

74l~:S04

2716

GJi'eck

Check

Check

Check

R44.

pattern.

pattern

each bus

.

line

.

8039

Correct
"START"

Correct
"START"

and back

step.

and

back

step.

to

to

-12-

Check
Check
Check

of

of
of

ROM
8155

IC15

(2732)

74LS244

CHECK

OF

ROM

Check
select

Check

Check

chip

circuit.

IC5.

R31.

74LS14

CHECK

OF

8155

pattern.

Check

IC5.

Check

Check bus lines.

74LS14

8155

IC14.

Check

74LS273

Check bus lines.

bus lines.

Check

2732

OK

YES

Check 1C12.

IC12.

Check

IC12.

Check

8155

8155

-13-

CHECK
74LS244

OF

IC15

Check

circuit.

Check

Check

eh

ip

pattern.

IC9.

select

CHIP

SELE<;:T

CIRCUIT

Check

Check bus

Check

IC8.

IC9.

74LS32

lines.

Check IC15.

74LS32

74LS244

74LS42

YES

OK

-

14-

ADJUSTMENT

This

concerns

the

energizing
contrary,
wire

clacking

wire

is

This

adjustment

following

1)

Remove

circuit.)

2)

Take
head

3)

Turn
insertion

4)

Draw

5)

Connect

24V

6)

While
units.

7)

Connect

(2SA

width

(The

Note:

the

pulse

the

larger

out.

broken.

manner.

upper

out

the

cord

PWB.

on

the

area.)

out

the

3

units

D.

C.

(current

pushing

(The

head

the

1

015)

on

i~

out

semi-variable

Before

checking

printing

is

cabinet.

head

paper

power

synchroscope

of

OF

width

pulse

In

most

required

cord

end

supply

of

D.C.

capacity:

the

line

is

shifted

the

CPU PWB

standard

resistor

pulse

energy

(time)

width

cases,

to

(Do

PWB

sensor.

power

feed

right

value,

is

width,

HEAD

force

is,

the

prolongs

the

head

give

an

not

disconnect

connecto

(Put

socket

supply

1.5A

or

switch

and

to

the

to

check

rotate

to

be

fixed

calibrate

DRIVING COIL ENERGIZING PULSE WIDTH

for

the

head

wire

to

print

a

dot

and

its

length

in

time

as

well.

The

smaller

the

appropriate

(CN4)

more),

of
left.)
test

the

printing

wire

is

the

r

from

a

piece

with

to

the

14V

the

set

point

to

see if

the

semi-variable

with

lacquer

the

synchroscope

printing

time

caught

printing

connector

the

connector

of

paper

5-pin

5-

pin

D.C.

turn

which

the

of

by

energy

lead

connector

and

on

the

is

pulse

resistor

after

in

energy

the

5V

connected

adjustment.)

head

ink

of

on/off

of

the

from

D.C.

power

width

to

eliminate

is,

wire,

ribbon,

to

the

terminal

paper

the

(CN4)

switches

on

(VR1)

thus

weakening

thereby

and

head

line,

top

PWB.

sensor

CPU

board.

of

to

the

the

synchroscope

at

the

error

feeding

what

wire.

Make an

of

form

Be

lever

CPU

of

the

collector

CPU PWB

in

time

printed

the

is

worse,

and

careful

located

board

three

of

is

base.

letters.

head

with

the

adjustment

line

not

to

at

printing

as

shown

D.C

.

power

the

transistor

400

±1 0 11sec.lf

to

adjust

the

tip

feed

damage

the

shorter

To

the

head

of

head

in

the

switch

the

paper

below:

supply

021

the

width.

~400±1

---8

G-

---8

--8

G-

---8

c::=:::J

--E.)

c::=:::J

---8

c::=:::J

-E)

c::=:::J

-E)c=:J

G-

~

6

-E)

c=:J

--E)

--E.)

--f)

-E)

--E)

CJ

[:=::::J

r=:J

c:=J

c::::::J

G-

G-

0

J1Sec

~

Head

driving

u

-B

~

coil

24V

~

[)

~

=§

0

cb

p

energizing

(Current

capacity:

IC3

I

·~

©

ICS

I

0

0

pulse

1.

n

p

signal

5A

For

IC8

IC9

or

more)

pulse

width

'm

adjustment

Connecting

diagram

for

power

-15-

supply

and

synchroscope

POWER SUPPL V SECTION

•

Block Diagram of Power

Supply

Circuit

ACI

NPUT

o-

•

Filter
section

Troubleshooting

-=-

Power

transformer

-

f--

~

~

Rectifier

section

Rectifier
section

Rectifier
section

Smoothing
section

Smoothing
section

Smoothing
section

NO

-

Regulator
section

Regulator
section

Regulator

section

Check
transformer
circuit.

------<>

power

and

{)

(21.

0

input

+26V

5

""26.5V)

+5V

+15V

YES

NO

NO

YES

YES

NO

NO

NO

NO

Check

80103,

C1

03,

C1

CheckR101,
Z01

02,

0102.

Check0101,
output

connector

Check

80102,

F104,

C105

Check

IC1
output
connector

Check

80101,

F1

05,

C106.

Check

IC101
output
connector

04.

02,

F1

03,

-16-

FUNCTIONS

•

Exterior

of

Mechanism

Release lever

OF

and

_PRINTER

Names

of

Parts

~

PARTS

•

Sensing

Sensing
Home
The
carriage

Adjusting

Mechanisms

mechanisms

Position

PTS

sensor

speed.

lever

of

the

generates

The

PE

consist

carriage

sensor

the

of

HP

and

timing

detects

sensor,

generates

signal

the

Timing

PTS

the

reference

used

presence

belt

sensor

to

determine

or

absence

motor

and

PE

signal

sensor.

for

printing

of

paper.

The

printing

HP

.

position.

sensor

lt

Sprocket

is

attached

detects

Paper

this

unit

feeding

to

determine

signal

motor

and

the

adjusts

1.

HP

Sensor (Home

The

HP

The

signal

output)

sensor

is

Position Sensor)

consists

High

when

of

the

the

sensor

home

position

board

sensor

interrupts

-17-

assembly

the

light

anq
shaft

sensor

of

the

board

photo

on

the

coupler.

lower

(lt

part
is

an

of

open

the

carriage.

collector

2.

PTS Sensor

The
The

PTS

signal

(Print Timing

sensor

consists

is

Low

when

of

the

Signal

the

slit

Sensor)

PTS

of

the

sensor

sensor

board

board

assembly

appears.

and

(lt

is

the

an

sensor
open

board

collector

on

the

output.)

timing

belt

motor

shaft.

3. Paper

4.

The

paper

to

the

no

paper.

Sensor

Sensor

paper

Circuit

sensor

sensor

consists

lever.

• Printing Mechanism

The

main

elements
platen.
carriage guide.
pulley.
Printing
coil.

The

performs

The

print

current

The

flows

of

head

timing

when

of

the
unit

the

when

the

The

pnntmg

on

the

belt

dot

the

reed

switch

permanent

mechanism

carriage

is

driven

wire

springs

PTS

signal

attached

magnet

is

moved

by

the

out

is

generated

approaches

To

+5V

HP

signal

PTS signal

To

GND

are

print
to

timing

toward

to

the

paper

head

belt

the

by

sensor

board

and

the

the

reed

switch

and

Paper sensor

o----o~

~Permanent

unit,

right

motor

platen

the

and

belt

carriage,

left

through

due

motor

by

the

the

to

the

rotation.

t1m1ng belt,

timing

belt

flow

permanent

the.

signal passes

Reed

belt

driving

of

current

switch

timing

on

shafts

pulley

magnet

when

magnet

belt

A

and

in

the

attached

there

motor

and

B

belt

head

is

and

of

the

driven

driving

Carriage

HP signal

PTS signal

Head

Dot

1. Principle

The

carriage

the

carriage.

drive

signal

I......____--..Jr-

-

drive

coi

I signal

wire

tip

of

Carriage Movement

is

moved

----~~------

to

Left

-----'

the

=fl--

right

1

--------2-.5-4_m_m_(-1/_1_o·-·

·2.08ms

0.4ms

and

left

by

the

drive

of

Carriage

Right

the

timing

Junction

)

---------(~

belt

motor

with

the

Timing

belt

timing

motor

$\---

belt

f-

inserted

in

Timing

-18-

belt

Drive

for

the

timing

belt

motor

is

basically 2-2

phase

excitation.

Sequence

2.

of

Printing function

This

explanation

function

1) The
toward

2)

The

forced

when

it

3) The

function

longer

dot

The

striking

the

belt

motor

Carriage

From

left

to

From

right

to

of

the Print

is

for

the wire

plate

is

the platen since

dot

wire springs

strikes the platen.

plate

is

passes

through the

wire, after

force and the

it

drive

to

move the carriage

Step A

1

right

2

3

4

1

left

2

3

4

Head

movement

pulled in

it

reset

strikes the platen, returns

wire

to

is

connected

out

to

its

driving

return

of

one

the core when

with

the

till

it

strikes the platen and one

former

coil.

spring and maintains itself in a

position

is

as

follows.

phase
ON

ON
OFF
OFF

ON

ON

OFF
OFF

dot

when one character

current

function

to

by

the force

its

flows

plate.

position,

B

OFF
OFF

ON

OFF
OFF

phase

ON

ON
ON

in

the

dot

of

which
waiting

driving

is

printed

the

C

OFF

OFF

OFF
OFF

is

formed.

function

is

connected

condition.

phase

ON
ON

ON

ON

coil

and thus the

on the paper

plate spring when

with

function

D

phase

ON

OFF

OFF

ON

OFF

ON
ON

OFF

dot

through

wire springs

the

ribbon

current

plate, by its

no

Function

plate

Wire

return

Function

Dot wire

spring

plate

spring

-19-

Ribbon

mask Platen

Nose

tip

..

R

'

ib~)

\

Paper

•

Paper

There
Each

Feeding Mechanism

are

two

type

is

1. Friction feed

Paper

is

held

The

platen

an

arrow

and

Paper

is

pressed

set

free

by

types

provided

type

between

is

driven

feeds

against

the

release lever.

Paper

of

paper

with

paper.

Scale

feeding

normal

the
by

the

feeding

platen

a

motor

platen

roller

mechanism;

feeding

and

the

through

by

the

and

paper

spring

quick

a

gear

one

feeding

feeding

on

loaded

is

the

a

and

friction

functions.

holding

motor

paper

feed

rollers.

shaft

holding

type

and

a

rollers

and

gear

and

the

train

paper

Paper

other

in

feeding

feeding

motor

is

the

a

sprocket

direction

rollers,

feed

shown

and

type.

can

by

be

2.

Sprocket

Paper
tion
which
side

paper.

is

shown

presses

in

sprocket

feed type

fastened

by

an

paper

feeding.)

to

the

arrow

sprocket

through

against

The

{

.

I

the

paper

/

pins

a

gear

platen

holding

-

on

on

~

the

the

is

released

roller

Platen

sprocket
motor

by

is

in

,

~

gear

wheel.

shaft

and

a

the

release

contact

with

Paper

o":>

Sprocket

Sprocket

The

gear

motor

train

lever.

paper

pin
wheel

drives

to
(The
in

such

Sprocket

feed

release

the

paper.

a

degree

gear

sprocket

The

lever

as gives

paper

is

set

wheel

to
light

in

the

feeding

the

forward

tension

direc

roller

-

to

Paper

feeding

roller

Paper

holding

Platen

roller

gear

-

20-

Paper

feeding

motor

• Ribbon Feeding Mechanism

The

ribbon
chanism
the

following

mechanism consists

is

attached

to

arrangement

the

belt

of

wheels. The

of

the cartridge

ribbon

tension plate assembly.

ribbon

driving

and

ribbon

Movement

gear

normally

feeding mechanism. The

of

the

timing

belt

to

the

turns

counterclockwise.

right

ribbon

and

left

feeding me-

is

through

1

2

ink ·ribbon

The

and

ribbon

Furthermore,

as

it

Ribbon

is

Ribbon

pressure

planetary

planetary

loose

Ribbon

Ribbon

-+

-+

knob

movement

Right

of

Left

of

is

wound

braking spring

mask

arrow-+)

arrow

Carriage

Left

(In

direction

Right
(In

direction

is

stored endlessly in the cartridge

pressure roller,

there

is a ribbon

wound. A ribbon

feeding

roller

gear (1)

gear (2)

q)

up

by

is

attached

the

•

Belt
Planetary

• Belt driven
Planetary

Ribbon

case.

ribbon

feeding

at

the

outlet

to

prevent the paper

driven

driving

This

ink

knob

of

the cartridge

Arrangement

pulley

-+

pinion

pulley

pinion

(2) -+

-+

(3)-+

Planetary

Planetary

Planetary

gear

ribbon,

pinched between the

set on the-ribbon

case

to

from

becoming

Ribbon b.raking

of

wheels

Ribbon

driving

prevent the

dirty.

pinion

driving

pinion

pinion

gear.

spring

( 1)

gear

(1) -+

(4)-+

ribbon

ribbon

-+

from

feeding

becoming

knob

Ribbon

driving

Ribbon

• Connector Diagram

Connection

Prin t s

olenoid

P

rint sole

Common

VLED (+5V)
CR mo

tor common

li

ne (+)

PF mot o r

gea

planetary

noid
line

(+)

,

com

mon line I

r j

Ribbon

gear (4) gear (3)

Connecto

r t

erminal No.

2

3~

3

414~

5 I 5

616~

8

8

9 9

10

11

12

13

I

14

planetary

onnector term

C

.-------o

inal No.

1 5

18

19

20

21

22

23

24

25

26

27

28

Connection

R, T sensor

Paper sensor

GND

I Paper sensor

T i

ming

signal

l Reset signal

CR

motor

.. B ..

.. c ..

I

.. D ..

I

PF

motor

.. B

.. c ..

..

(GND)

A phase

A phase

..

D "

Note:

Print

solenoids are counted

1,

2 . . . . . 9

-

21-

from

the upper side

of

the

characters.

I

REPLACING OF MAIN

1. Sprocket unit

1-1

Disassembly

(1)

While
away

pressing

to

remove

the

it.

sprocket

(In

the

lock

direction

PRINTER

levers

in

the

shown

by

an

direction

arrow~

PARTS

shown

by

.)

arrows

CD

,

turn

the

sprocket

unit

(2) Remove
(3) Remove the

(4) Remove the
(5) Remove
(6) Remove
(7) Remove
(8) Remove

Remove the

the

the
the
the
the

sprocket
sprocket

plane
nuts
sprocket

paper
sprocket
sprocket

lock

reduction

bearing

(4N x 2, 4W x 2)

mounting

position

shaft in
mounting

Plane

94VF304004020

levers

for

adjusting

bearing

Land

gear.

sprocket.

on

plate

plate.

the

direction

plate

{for

sprocket)

R,

("E"

the

assy

assy

and

ring x 1)

("E"

both
"A".

shown

"B".

the

lock

ring x 1)

ends

by

Sprocket
plate

assy B

94

V F

3041

lever

of

the

an

arrow

mounting

03000

springs.

sprocket

in

the

("E"

ring x

guide shaft.

ring

illustration.

2)

- 22 -

~

~

~

LQ_

o;ft

Plane bearin

94VF304oo1J~~

sprocket)

p.

~

,

~~

........__

,

~

;-

Sprocket

94VF3041o!o';5b"9

mo

(9)

Disassemble

1)

2)

3)

plateassv

Remove
Remove
Remove

A

the

the
the

the

•

r"

'f>

</

Paper

position

adjusting

94VF3041

sprocket

sprocket
paper
sprocket

set.

LB

set.

guide

roller.

R B

set.

LB

Sprocket

~

rh

~-C!D-

set

roller

~~~e~j~;010020

·de

-

f§L

i

{J!?_

~~

plate

01050

'

§.__

Sprocket

94VF3041

~

reduction

01010

gear

( 1

0)

Disassemble

Remove

cover.

the

the

sprocket

sprocket

lock

LB

and

lever,

Sprocket

R B

sets.

sprocket

RBset

wheel,

paper

holding

~

~

cover

spring,

Sprocket

94VF303011050

lock

lever

G-pin,

and

paper

holding

- 23·-

1-2

Assembly

(1)

Assemble

for

·Note

•

The

..

Install

in

the

•

Pay
shall

the

disassembly.

the

direction

sprocket

the

same

wheel

sprockets

angle.

attention

be

on

the

sprocket

identification

to

the

R B

set

Sprocket

wheel

unit

in

for

inserting

so

that

assembling

side.

number

the

numbers

the

sprocket

direction

reverse

LS

(leaf

of

order

of

the

wheel

the

used

spring).

LB

and

identification

paper

Paper

R B sets

guide

guide

Sprocket

94VF3041

must

numbers

roller.

The

roller

Sprocke

shaft

04010

be

the

face in

counter-tooth

t

RB

Set

Sprocket

lock

lever

LS(6-0.15-11)

94VB101251490

same.

the

same

side

direction

of

the

roller

2.

(2)

Print

2-1

Disassembly
( 1)

Attach

Head

Pull

·When
head

/

Sprocket

the

sprocket

Tooth

unit

Direction
guide

to

printer.

roller

for

ocket

inserting

RB

paper

Set

Unit

the

head

cable

from

the

head

inserting

cable

horizontally

or

pulling

in

out

the

Head

connector

the

head

direction

cable

.

cable,

of

the

hold

arrow

/

Head

connector

===='D~====70~

))

......

D

number

side

the

(

.._...), while

wheel

place

Sprocket-

marked

pushing

gear

with

arrows

the

Print

94VF401400000

head

(

c>)

connector.

head

unit

and

move

the

2-2

(2}

Turn

(3}

Remove
Assembly
( 1)

Set

(2}

Insert

the

the

the

head

the

print

head

lock

print

head

cable

lever

head

unit

clockwise.

unit.

on

into

the

the

carriage.

head

connector.

-24-

Head

connector

94VA260112001

3. Paper Sensor

3·1 Disassembly

Remove

(1)

Stretch

(2)

Remove

(3)

Remove

(4)

Remove

(5)

board

Sensor

the

the

the
the

the

assembly

soldered

in

bend

paper
paper
soldering

lead

the
sensor
sensor

of

wire

outer

lever
board

the

from

paper

spring.

assembly.

reed

the

guide

switch.

terminal

the

[In

..

board

direction

of

the

arrow.]

•

Paper

94VF31

sensor

0011000

lever

set

A

spring

lever

sensor

Paper

94VF303007020

guide

paper

Outer

94VF304009011

Assembly

3-2

disassembly.

for

us~d

order

reverse

the

Assemble

( 1)

Sensor

PTS

4.

Disassembly

4-1

Remove

(1)

Remove

(2)

11'

in

the

the

soldered

sensor

PTS

lead

wire

board

the

from

assembly

PTS

(2.

sensor

5mm

board.

screw

1).

x

-25-

4-2 Assembly

(1)

Temporarily

(2)

Solder

(3)

Adjust

Check T period

1)

•

•

2)

Adjust
return T periods

3)

After

and

the

the

Check
Check

adjusting,

Adjustment

fasten

the

lead wire.

period

of

while

the

wave

that

the

print

the

PTS

sensor

are

fix

PTS

board

the

PTS

signal.

printing.

form

with a synchroscope.

head

has

-~

board

in

almost

equal.

the

screw

lock

assembly.

been

fitted.

the

direction

and

paint

shown

the

screw

by

to

the

lock

arrow

it.

in

the

figure

so

that

the

going

and

5.

HP

Sensor

5-1 Disassembly

(1)

Remove

• Do

(2)

Remove

not

the

touch

the

soldered

the

HP

sensor

lead

timing

board

wire

belt

assembly

of

the

the

HP

sensor

soldering

(2.5mm

iron.

screw. E ring).

'----!

------

k---_

~

board

from

--_

the

terminal

HP

sensor

94VF303030000

board.

board

assembly

- 26 -

5-2 Assembly

(1)

Attach

·Put

(2)

Solder

(3)

Check

•

Check

•

Check

(4)

When

(5)

After

and Adjustment

the

HP

sensor

in

the

screws

temporarily.

the

lead

wire

the

relation
the
that

the

phase

adjusting,

wave

the

between

form

print

is

not

fix

the

board

to

head
right,

the

with

screw

terminal

the

has

assembly

board.

PTS

signal

a

synchroscope.

been

set.

adjust

it

by

lock

and

and

moving

paint

HP signal.

the

the

screw

HP

sensor

to

HP Signal

lock

board

it.

in

the

direction

of

the

arrow

.

PTS Signal

I

I

-

-+--

-

----+---

0.9

6. Motor Assembly (Timing belt motor assembly, paper feeding motor assembly, belt driving

6-1

Disassembly

( 1)
(2)
(3)
(4)

Remove
Remove

Remove

Take

off

lead
lead

the

the

wires

wires

PTS

wire

of

of

sensor

band.

the
the

timing
paper

lead

belt

f~eding

wires

from

motor

motor
the

assembly

assembly

terminal

from

from

board.

T i

the

ming

terminal

the

terminal

belt

motor

board.

board.

assem

bl

y

le

ad cable

"'-'1.

2ms

pulley)

0 0 0 0 0 0

Green Green Red

White

Blue

Yellow

For
motor

For

paper

assembly

tim

feeding

ing

belt

motor

-27-

ass

e

mbly

Red

;>

1

c,

Gray

7

?

Blue

For

shield

o

Biack

o_

Gray

PTS Sensor

wire

shield

(GNDl

wire

(5)

(6)

Remove

•

When

HP

sensor

Remove

the

paper

removing

board

the

timing

feeding

it,

only

assembly

belt

motor

motor

take

come

assembly.

out

the

out

together.

assembly.

two

(2.5mm

(2.5mm

screws

screw

shown

screw

x 2)

in

x 2)

the

figure

so

that

the

Paper

94

V F303031

motor

feeding

heat

motor

000

sinker

assembly

and

(7)
(8)

(9)

(10)

Remove
Remove

Remove

·When
Remove

the

timing

the

PTS

the

belt

removing

the

ball

Motor

94

V F

belt

sensor
driving

the

belt

bearing

heat

sinker

3030260

motor
board

pulley

1 0

assembly

assembly.

( E ring).

driving

from

the

Timing

belt

94VF303027000

from

pul.ley; frrst

belt

driving

motor

assembly

the

motor

loosen

pulley.

the

heat

sinker.

timing

Belt

94VF303017000

belt.

(Refer

driving

to

pulley

page

29)

PTS sensor

94

V F

304059000

board

Motor

heat

94VF30302601

sinker

0

-28-

6-2

Assembly

(1)

Attach

(2)

Attach

(3)

Place

(4)

Put

(5)

Attach

·Check

(6)

Attach

·Check

in

and

the
the

the

the

the

the

the

Adjustment

timing

PTS

sensor

ball

bearing

belt

driving

timing

the

gear

backlash

paper

gear

backlash.

belt

motor
board.

in

pulley.

belt

feeding

the

motor

.
motor

assembly

belt

driving

assembly

(C

should

assembly

(C

should

to

the

pulley.

and

be

minimum.)

to

be

minimum.)

motor

motor

the

heat

heat

frame.

sinker.

sinker

~

.

I

to

~

the

0

frame.

-

..

Gl

(7)

(8)

(9)

7.

Timing Belt

7-1

Disassembly

( 1)

(2)
(3)

=fr~

~

-

~~

I\

\~

~

1/

0

~')

l

,

'0.!r

"'

belt

of

(Refer

signal

the

screws.

belt

screw

__

board.

belt

belt

from

~

motor

the

on

to

and

motor

on

,

backlash)

PTS

the

Page

HP

(Refer

carriage

the

Solder
assy

to
Install
tehsion

Check

Remove
Do

not

Pull

the

Loosen

I

L_

(Timing

the
the

the

plate.

the

the

mix

timing

the

~

.

leads

terminal

timing

PTS

timing

up

lock

\

_):

\

J

~

J:

' J

~--

_.....ye

sensor

board,

paper

feeding

belt

driving

30

.)

signal.

assembly

to

assembly.

belt

tension

(Refer

and

*

mark

pulley

to

motor

in

plate

Page

the

and

and

the

26,

heat

sinker.

figure.)

remove

27.)

~

·

..

......__

L_

(Paper feed

motor

belt

the

assy,

driven

(2.5mm

timing

motor

and

pulley,

screw

belt.

c

~~

backlash)

timing

belt

motor

and

lock

the

belt

x 2)

(2.5mm

screw)

Tim

in

g

belt

94VF30301401

0

Motor

heat

94

V F

-

29-

sinker

30302601

0

7-2

Assembly

(1) Hang the
(2) Insert the

(3)

Temporarily

(4)

Adjust

•

(5)

Tighten

and Adjustment

timing

belt

on the

timing

belt

into

fasten

the

belt

the tension

Using the

hole

of

in the

the

belt

[Standard value] 1300gr

the

lock

screw

after

belt

the carriage.

tension

timing

belt.

tension

±50gr

the

adjustment

driving

plate

plate,

pulley

while

adjust

and

and

belt

driven

Carriage

94VF30;3006000

gently

it

to

paint

assembly

stretching

its rating on the spring

the screw

pulley.

the

timing

to

lock

it.

belt.

scale.

(2.5mm

screw

x

2)

Be

lt

tension

plat

94VF303019000

2.5mm

scr

e

ew

-30-

8. Belt Tension Plate Assembly (Including ribbon driving

8-1 Disassembly

(1) Remove carriage guide shaft A.

1)

Remove E ring on frame

2)

3)

Remove
Move

Frame

the

nuts on carriage

the carriage

LB

to

frame

LB.

shaft

A.

(4N x 2)

LB

side and pull carriage shaft A

gear)

out

to

the

right.

Carriage

94VF303001010

(2)

Move

the

carriage

{3)

Remove the home position sensor assembly.

·There

{4)

Remove the lock screw for

{5)

Pull

out

is

no need

the

to

the center between frame

to

remove

beh

tension plate assembly and ribbon driving gear.

shaft

the

the

belt tension assembly and remove the timing belt. {2.5mm screw)

A

Frame

LB

(2.

5mm screw, E ring)

soldered lead wire.

and R

RB

t'<;f

B.

-

31-

(6)

Disassemble the

1) Remove the

2)

Pull

out

the

3)

Pull

out

the

4) Remove the planetary

belt

tension

belt

driven

belt

driven

planetary lever assembly.

plate assembly.

pulley

flange. ( E ring)

pulley.

pinion.

(E ring x 3)

8-2

Assembly and

(1) Assemble

(2)

(3)
(4)
(5)
(6) Check the

1)

Put

in

•

Do

2)

Put

in

3)

Put

in the

4)

Put

in the

Put

in

the

with

2.5mm

Attach

the

Assemble
Adjust

the

Adjustment
the

belt

tension plate assembly.

the

planetary

not

make a mistake

the

planetary lever assembly.
belt
belt

ribbon

screw.)

home

carriage

belt

tension

HP

signal and

pinion.

driven

pulley.

driven

pulley

driving

gear and

position

shaft

A in the reverse order

properly.

PTS

(E ring x 3)

about

the

flange.

ribbon

sensor

assembly. (E ring)

(Refer

signal.

direction

to

(Refer

and

position

tension

section 7.2 on

plate

used

for

to

section 4.2 on

disassembly.

of

LS

(leaf

~LS(3-0

__rr__

and attach the

page

30.)

page

26 and section 5.2 on

spring).

Planetary

timing

.

07

-

6)

pi

belt

(Temporarily

nion

Planetary

94VF303020020

page

27.)

fasten

pi

nion

9.

Platen

9-1

(Including

Disassembly

(1) Remove the
(2) Remove the paper feeding

·There

(3) Remove the
(4) Remove the

(5) Remove the

(6) Remove the

sprocket

sprocket

is

no need

sprocket
platen

roll-in
platen

transmission gear)

unit.

(Refer

to

section

motor.

to

remove the

transmission gear. ( E ring)

cover.

(2.5mm

protector.

unit.

(E

(Refer

soldered lead

screw x

ring x 2)

to

section

2)

-32-

1-1

wire.

on

page
6-1

22.)

on

page

27.)

Plane bearing

94VF304004020

(for

LS(G-0. 15-11)

94VB

101251490

platen)

!'

~

~

Platen cover

94VF304001.060

Platen

94 V F

unit

304005000

9-2 Assembly

(1)

Attach

(2)

Attach

(3)

Attach

(4)

Attach

(5)

Attach

(6)

Attach

the

platen

unit.

the

roll-in

protector.

the

platen

cover.

the

sprocket transmission

the

paper

feeding

the

sprocket

unit

(E ring x 2)

(2.5mm

motor

B.

screw

gea r. (E ring)

assy.

x 2)

(Refer

to

section

~/~~~--

Paper feeding

94VF303031

6-2

on

page

Platen gear

94VF304004010

motor

000

29.)

assy

1

1

-33-

10.

Adjusting Lever

10-1

Disassembly

( 1) Move
(2)
(3)

(4)

Remove
Insert

the

nuts

Remove

(Including

the

adjusting

the

print

a

screwdriver

holding
the

ribbon

head

it

lever

or

(4 N).

mask

adjustment

to

the

middle

unit.

(Refer

similar

tool

and

head

Adjusting

94

V

F303001

lever

of

basic space between

step

in

the

to

section

into

sitting

030

2-1

the

hole

plate.

Screwdriver

(2.5mm

hole

on

in

carriage

in

page

screw

frame

24.)
shaft

platen

LB.

B

x 2)

to

and

stop

print

head)

it

from

turning

Ribbon

94VF303001

Head

sitting

94VF303001100

mask

and

092

plate

remove

,

10-2

Assembly and

( 1)

(2)

(3)

Temporarily

·Set

it in

Attach

Turn

·There

•

lt

is

the

is

no

carriage

eccentric

Adjustment

fasten

the

the

middle

print

head

need

to

shaft

B

so

pay

Adjusting

94VF303001

adjusting

step

of

unit

to
insert
so

the

attention

lever

030

the

the

hole

lever.
adjusting

the

carriage.

head

is

to

Carriage

cable
up.
the

(4N)

top

shaft

hole.

into

and

B

the

head

bottom

~ole

connector.

of

the

eccentric

Carriage

part.

shaft

Up

Screwdr

iver

-L

I

B

a

a > b

-34-

(4) Move
(5)

(6) Fix

(7)
(8)

(9)

(1

t

0)

the

carriage

Insert

a

narrow

tween

the

•

[Standard

·Position
gauge.

the

adjusting

·Tighten

Remove

Temporarily
Attach

•

Insert

Fasten

1)

2)

the

the

the
the

Adjust

·Adjust
Adjust
and

print

·Check

it

dot

head

clearance]

the

carriage

so

the

print

fasten

print

head

head

cable

ribbon

the

adjusting

it

all

the

relative

head

that

the

to

the

1

side

screwdriver

tip

and

0.65mm

shaft

lever

clearance

head

unit.

the

head

unit.

into

mask

and

lever

the

way

to

position

tip

as

shown

ribbon

a~b

on

or

platen

where

does

sitting

the

connector.

head

to

the

of

in

mask

the

similar

by

moving

the

not

change.

plate

sitting

its

uppermost

side

marked

the

platen,

the

is

at

a

a

..>

b

scale

tool

platen

and

plate.

figure.

right

graduation.

into

the

it

forward

qn.d

platen

ribbon

mask. (2.

step.
(-).
ribbon

mask

angle.

c

carriage

and

back.

head

shaft

tip

5mm

B

hole

lightly

screw

touch

x 2)

""'

and

adjust

both

about

the

sides

0.

clearance

of

a

65

mm

be-

thickness

3)

(11) Do

lever

Put
with

not

to

the

the

touch

the

head

sitting

bearing.

the

home

uppermost

plate

In

addition,

and

approximately

position

position

lowermost

sensor

steps

parallel

it

so

it

satisfies

assembly

.

J

1

Ribbon

to

and

Within
of

C

(standard)

mask

the

side

the

conditions

carriage

±0

.

3mm

surface

sensor

of

in (2)

plate

the

and

when

carriage

fasten

setting

and

it

the

in

with

contact

screws.

adjusting

f

>

0

9

>

0

Home

position

sensor

assembly

-35-

REPLACING INK RIBBON FROM CARTRIDGE

1.

Remove

the

Frame

cartridge

LB

ribbon

from

the

printer.

Ribbon

2. Remove

Note: There are catches (

the

cartridge case lid from

--+

bent and remove the cartridge case I id.

Cartridge

case

Carriage

94

shaft

V F 303001 0 1 0

)

in

lid

A

Fig.

1

the

cartridge case frame.

6 places. When removing the lid, push the catches

Cartridge

case

frame

to

the

outside so they

aren't

Fig. 2

-36-

3. Remove the

used

ink ribbon

Cartridge

case

frame

Cartridge

case

id

I

Used

ribbon

is

there

are

and

as

shown

in

the

Note:

Fig. 3
relative

illustration

an

is

positions

4. Remove the new ribbon with the ribbon

Cellophan

no

figure.

package

case

e

need

Fig. 3

to

from

Fi

remove

its

4

g.

everything

cellophane

ibbon

r

New

94VER-04-1

as

case.

///

Ribbon

shown.

you

If

package

do

remove

everything,

the

Put the new ribbon into the

5.

ribbon
Pass
Hold
arrow

the

ink

the

the

(Fig. 5).

the

top

ribbon

of

top

(1) Leave
(2)
(3)

(4) Remove

cartri.dge.

in the package and

package

package.

the path

with

through

the

the

of

it

put

shown in Fig. 6.

as

hand and

your

(Note:

The

into

ink

the

ribbon

-37-

cartridge

out

pull

is

as

the

not

shown

bottom

removed

in Fig.

the

of

from

5.

package in

cartridge.)

the

the

direction

of

the

Cartr

idge

6.

Put

in

the

cartridge case.

7.

Turn the ribbon feeding

between

the

ribbon case.

Ribbon

case

feeding

frame

knob

Mark

Fig

knob

. 5

in

the

direction marked

Cartridge

case

Top

on

lid

of

package

the

Bottom

of

package

cartridge and

check

Ri

that

Ri

bbon

bbon

package

Fig. 6

the

ribbon

is

not

pinched

Note:

After

replacing

cartridge

ribbon

the

has

ink

been

ribbon,

replaced.

Example

make a check

After 5 checks,

r l

L__j

£fl

Fig. 7

on

the

ribbon

use a

PLATEN

----"--

INKED

PRINT

CARTRIDGE

label

new

cartridge

RIBBON

HEAD

RIBBON

that

I

indicates

ribbon.

number

of

times

the

-

38-

REPAIR PROCEDURE FOR PRINTER MECHANISM

• Flow Chart to Check

Phenomenon

To

and

Phenomenon

Is

it

to

the

printing

check
control

Is

it

to

the

1.

connected

system?

14YES

Is

there

paper?

YES

of

power

circuits.

2.

connected

system?

Mechanism

Carriage

Cause

does

NO

does

NO

of

Defective

not

function

NO

not move.

Does

Does

NO

parts

with

the

function?

INO

the

move?

power

mechanism

~

Is

the

timing

belt

I

I

NO

NO I To

-connected
supply.

carriage

check

YES

YES

Is

the
motor
normal?

timing

driving

belt

signal

YES

NO

1 1

NO

Only
Timing

-~

To

related w1th

Only
Timing

timing

belt

check_of

timing

belt

also

belt

moves.

doesn't

things

control.

belt

also

doesn't

move.

moves.

move.

1---+---

Timing

Belt

Be.lt

driving

driven

belt

pulley.

pulley.

motor.

Note:

Active

the

paper

to

print

even

if

there

is

no

need

to

print

while

checking.

-39-

Phenomenon

3.

Does

not print at

all.

connected

it

Is

system'?

the

to

YES

command

printing

Is

output?

YES

printing

there

Is
paper?

YES

Does paper sensor

function

Does carriage move?

Is

connector

head

print

Does
function

normally?

YES

YES

unit

connected?

YES

make

it

noise?

YES

any

NO

NO

Connect

connector.

check

To

connected

control.

the

parts

with

--

Does

NO

it

I

print?

YES

OK

NO

<§>-

.

*

NO

NO

NO

NO

Phenomenon

To

Phenomenon

To

Connect

connector.

Is
to

+26V

print

the

1

supplied
head?

7.

2.

YES

~epla~eas

YES

driving

head

print

Is

waveform

normal?

n

check

To

connected
control.

NO

sect1on

of

with

2-2.

things

NO

parts

the

check

To

related
with

power

supply

f--

.

Is
put

Remove

*

Is
on

the

in

printing

paper?

copy

YES

cartridge

correctly?

YES

paper

the

done

ribbon

and

check

NO

NO

if

,

there

"clicking"

a

is

Move

adjusting

lowest

cartridge

correctly.

Put

the

lever

step.

the

ribbon

sound

to

-40-

the

in

when

the

sensor

it

Does
adjusting

adjusting

YES

approaches

lever

print

the

lever?

I

by

merely

the

reed

~

switch.

Repa;cas

section

10

-2.

Phenomenon 4.

Ribbon

does

not feed.

Does carriage move?

YES

Is

cartridge

in

correctly?

YES

Does

cartridge

turn

by

hand?

YES

Is

ribbon

fed

knob

moves.

when

YES

turn

YES

turns?

Does
ribbon

-

put

knob

knob

when

NO

NO

NO

NO

NO

--

To

Phenomenon

Put

in

Remove
Does

knob

only

the

YES

Does

ribbon

turn

when

removed?

YES

cartridge

correctly.

cartridge.

move

cartridge?

I

driving

cartridge

I

2.

with

gear

is

NO

NO

NO

Is

ribbon

I

fed?

YES

..-

<E3>

To

Repair

3

OK

.....

""

Does
when
from

Does
when
from

knob

turn

cartridge

left

to

NO

knob

turn

cartridge

right

to

only

moves

right?

moves

left?

only

YES

YES

-41

-

Phenomenon

Fanfold paper

5-1

not fed.

is

connected

it

Is

system?

the

paper

Are

sprocket

of

Has paper

sensor

paper

Is
functioning

paper

Is
after

YES

holes

pins?

NO

run

NO

properly?

YES

fed

printing?

NO

to

out

out?

NO

YES

YES

·

f.-

* 2

NO

1-------

t-----..--twith

To

Check

Phenomenon

related

parts

control.

OK

*1

Is
load

inlet?

in

7.

the

at

Lighten

paper feed-

YES

load.

abnormal

an

there

NO

To

Repair

4.

paper

Is
sprocket

turned

Does gear

motor

ing

together?

the

Is
motor

+26V

Is
paper

paper

Is
driving

fed

gear

by

paper

of

shaft

paper

wired?

supplied

feeding

feeding

signal

when

is

hand?

YES

rotate

YES

feeding

YES

motor?

YES

motor

normal?

YES

Is
applying
signal?

-

feed

~---------------~----------------------~~

to

NO

---

t-

NO

t-----..-.l

Check

-~with

Check

with

parts

power

parts

control.

electric

NO

related

supply.

related

YES

by

heated

motor

Paper

feeding

motor.

Repair

To

Wire

according

section

Replace

section

in

6.

as

5

to

6.

* 1 Check

if

there

a load on

is

the

*2 Remove the paper and check

paper when

is

there

if

is

it

"clicking"

a

paper box, system case, etc.

the

in

sound when

the

-42-

sensor lever approaches

reed switch.

the

Phenomenon 5-2 Sheet

Is

it

connected

to

paper

is

not fed.

To

Phenomenon

Check

parts

with

control.

7.

related

Is

paper

fed?

* 1

*2

Check

Remove

1

1 _ 1

if

there

the

is a load

paper

and

., 1 Check

with

Check
with

on

the

paper

check

if

parts

power

parts

power

there

YES

related

supply.

related

supply.

when

it

is

is a "clicking"

NO

I YES

Feeding

is

after
No feeding regardless

NO

of

Paper

feeding

in

the

paper

box,

system

sound

when

stopped

while.

adjustment.

YES

motor

case,

the

sensor

etc.

lever

NO

approaches

the

reed

switch.

-43-

Phenomenon 6.

Prints

on

the

same

line.

(With

Has paper

sheet paper)

paper

Are

sprocket

of

(With

there

Is
paper

check

To

Phenomenon

(With

run

NO

holes

fanfold

NO

LF,

feeding?

NO

fanfold

out?

pins?

paper)

FF

5-1.

paper)

out

YES

YES

YES

parts

Check

control.

with

according

Check

Phenomenon

sheet paper)

(With

related

5-2

to

Alright
soon

there

Is
load at
feed-in

for

prints

YES

YES

time

a

on

abnormal

an
the
inlet?

but

same line?

paper

NO

1--------..,

Phenomenon

paper

Isn't

sheet paper?

to

set

sensor attached?

paper

Is

paper sensor

Is

wire

lead

reed sw i

Is

paper sensor lever?

by

7.

control

NO

YES

wired?

YES

tch

YES

Prints

moved

even

YES

NO

NO

NO

without

paper.

Check
with

fanfold

parts

control.

Set
paper

related

to

control.

Attach

paper

Lead

sensor.

wire

soldering.

Section

3-2.

-44-

Phenomenon 8.

Is

there

an

on

abnormal

the

inlet?

paper

I

oad

feed-in

NO

Is

release lever

tion

correct?

YES

Check

Phenomenon

Phenomenon 9.

Paper feed pitch

posi-

6.

Density

is

abnormal.

of

characters varies

across

YES

•

line.

Is PTS signal
period

Does

cartridge

smoothly

Check
Phenomenon

regular?

YES

move

by

hand?

NO

NO

YES

Is PTS signal
level

normal?

t

Check

parts

with

control.

output

YES

related

NO

Is

+

5V

to

PTS

Is

it

normal

waveform

changed?

supplied
sensor?

YES

~

if

amp

PTS

is

NO

YES

Check

with

Check
with

parts related

power

supply

parts related

control.

.

NO

Is

contact

of

lead

PTS

wire

YES

PTS

2.

sensor
alright?

sensor.

NO

Wire

in section 4-2.

......._

as

Replace

as

in section 4 .

~

-45-

Phenomenon 10-1 Printing position of 1st digit deviates. (With fanfold paper)

YES

Is

position

paper

A

re

both
sprocket
securely

Is

HP

sensor

fastened?

correct?

YES

right

lock

levers

locked?

YES

securely

YES

of

and

left

NO

NO

NO

Paper deviates
while.
Paper

deviated

less

of

adjustment.

Check

synchronization

with

PTS.

•

after

regard-

a

t----.-------t

NO

0

Synchronized
PTS?

Check

Phenomenon

with

YES

NO

9.

Phenomenon 10-2 Printing position of

Is

position

correct?

Does
spring

Is HP sensor securely
fastened?

paper

come

of

paper

YES

feeding

off?

NO

NO

YES

NO

1st

digit

deviates.

(With

sheet

Check

paper)

YES

Paper deviates
while.
Paper deviates regard·

less

of

adjustment.

Deviates again

while.
Deviates regard-

less

of

adjustment.

YES

synchronization

after

after

with

a

PTS.

NO

Check
ing

rollers.

Section

paper

feed-

5-2.

Synchronized
PTS?

Check

Phenomenon

YES

YES

with

NO

r---------

9.

--------------

--------~

-46-

Phenomenon 11. Printing

paper

is

dirtied by ink ribbon.

Is

ink

ribbon

loose?

NO

Is

ink

ribbon

path

correct?

YES

Is

ribbon

attached

Is clearance

print

correct?

mask

correctly?

YES

Is scale pressing 1

paper

firmly?

YES

between

head

and

platen

YES

YES

NO

NO

NO

~

NO

After

a

tim~

dirty

with

does

again?

correct

adjusting

after

it

get

YES

.

Is clearance
adjusting
lever?

YES

NO

NO

Is

it

corrected
cartridge
changed?

Is

pa~r

A

put

1n

Is paper
correctly?

Is paper

standards?

when

ribbon

NO

guide

plate

correctly?

YES

put

in

YES

within

I

YES

NO

NO

j

.,.

~

is

-47-

Phenomenon 12. Printing

is

light.

Is

ink

ribbon

used up?

NO

Is

the

cartridge

put

in

correctly?

YES

Is

ribbon

carriage moves
and

Is clearance
tip
plat

fed

right?

of

print

en

correct?

Is

paper

within

standards?

almost

ribbon

when

left

YES

between

head and

YES YES

YES

NO

NO·

NO

NO

t----c

Check
Phenomenon

4.

Does
become

YES

Is clearance
after
adjusting

it

immediately

light

correct

adjusting

lever?

NO

again?

with

Phenomenon 13. Printing

Is clearance
tip

of

platen

print

correct?

YES

between

head

and

is

light

NO

and

dark.

· Is clearance
adjusting

lever?

Does
printing

NO

with

light

correct

after

adjusting

YES

and

dark

disappear?

t--Y_E_s

_____

oot

-48-

Phenomenon 14.

Same

dots

only

are

usually

(sometimes) omitted.

contact

Is
connector

correct

Is

signal

Is
bent?

driving

Is

head

head

of

alright?

YES

driving

head

outputted?

YES

'

re

wi

dot

NO

inside

coil

disconnected?

NO

side.

Check head

3210

and

parts

Check

control.

with

connector

cable

related

board

j

Head cable

side.

NO

Terminal

NO

YES

YES

1

1---......,a...----~~

A.

-49-

Phenomenon 15. The ribbon winds but becomes loose.

Is

printing

within

Is clearance between
tip

platen

Phenomenon 16. Go/return time

Does carriage
smoothly

Do
and PTS signal

paper

standards?

of

print

correct?

phase

of

YES

head and

move

by

hand?

YES

HP signal NO

match?

NO

NO

NO

t-------c

for

the carriage

varies.

Check
Phenomenon

after

YES

NO

Does

ribbon

feed

correctly?

NO

Is

clearance
adjusting
adjust

2.

lever?

YES

correct

with

head

• Practical Method of Repair

Repair 1 PTS

signal

is

bad, HP

(1) Check points and method

1)

Check

+5V.

2)

Test

wheth

PTS sensor

~,__

signal

[Standard]

er

LEDs

,-

1

I
I

I

I

-

is

bad

+5V

±5%

are

normal

or

not

.

----

-

< PTS signal I

---,

--

-

__j

5

~o

I

I

I

I

__

_j

-

50-

3)

Check

the

waveform

"'·

output

by

opening

and

intercepting

the

light

shaft

-......

,,

to

the

sensor

plate.

'

/l

HP

sensor

side

PTS

sensor

side

(2)

Repair

Method

1)

Check

2)

If

3)

If

2

of

there

there

Timing

(1)

(2)

Repair

the

parts

is

no

is

no

Check

1)

Check

2)

Check

Method

1)

Adjust

2)

H

related

continuity
continuity

belt

does

points

the
meshing

of

damage,

not

and

backlash

Repair

the

or

with

the

between
between

move

method

of

gears

backlash.

wear,

+5V

a-b,

b-e,

of

the

1Refer

to

the

+5VI

GND-

power

exchange
exchange

gears

between

to

gears,

-

supply.

on

the

belt

page

etc.

_j____J

the

PTS

the

HP

belt

driven

29.)
are

found,

sensor

sensor

driving

pulley,

rep

I

board

board

pulley

planetary

.lace

the

assembly.

assembly.

and

timing

pinion

parts

and

belt

motor

and

ribbon

readjust.

shaft.

driving

gear.

Repair

Repair

With

3

4

fanfold

paper

Ribbon

(1)

Check

1)

2)

(2)

Method

1

Paper

(1)

Check

1)

2)

{

3)

driving

When

{a)

When

(a)

{b)

),

2):

feed-in

Check
Ch

ec

Check

gear

points

ribbon

Check

ribbon
Check
Check

of

repair

If

damage,

inlet

Points

if

k

.f

1
if

does

and

method

driving

meshing

driving
meshing
the

reversed

or

is

normal

and

Method

the

right

h h

t e

paper

the

paper

not

turn

gear

of

gear

of

wear,

but

and

left

Id"

o mg

holding

does

gears

of

turns

planetary

revolution

to

the

paper

positions

cover
cover

not

turn

ribbon

when

lever

of

gears,

does

. h

1s

spring

by

driven

carriage

assembly

the

etc.

not

of

the

Id"

o

mg
is

-51-

hand

pulley,

moves

planetary

are

found,

feed

sprocket

h

t

e

damaged

and

paper

planetary

either

planetary

lever.

replace

wheel

correct

or

fallen

left

are

pinion.

the

fixed

I

y.

off.

pinion
to

right

parts

·and

ribbon

or

right

and

readjust.

correctly.

driving

to

left.

gear.

{

paper

sheet

With

(2)

Repair 5 Paper feed

Check

( 1)

Check

1)

platen

Method

(2)

If

1)

Repair 6

Scale does

(1) Check Points

Check

1)

Check

4)
Check

5)
Check

6)

Method

Correct

1)

4),

3),

2),
Install

6)

gets

motor

and

Points

the

gear~

repair

of

,

damage

hold

not

and

if scale springs

the

if

paper

the
whether

repair

of

sprocket

5):
paper

the

hot

Method

backlash

sprocket

wear,

or

paper

Method

sprocket

feeding

or

wheel

Replace

feeding

paper

and

of

reduction

the

to

.

correctly.

Land

not

the

the

gears,

lock

spring

the

p'
parts

roller

does

gear

R are

lever

for

paper

ositions.

transformation,

if

correctly.

not

on

and

gear

are

etc.

and

off

securely

is

damage,

feeding

(Refer

feed

the

sprocket

found,

if

roller

to

paper

there

locked.

set,

is

page

feeding

gear.

replace

wear,

is

coming

installed

24.)

wear,

motor,

the

etc.

off,

etc.

parts

etc.

correctly.

found

are

sprocket

readjust.

and

parts.

any

in

transmission

gear,

repair

damage,

If

of

(2) Method

1)

Repair 7 Paper guide plate A

(1) Check Points

paper

if

Check

1)

repair

(2)

Method

1)

2)

of

guide

paper

If

guide

paper

Replacement

Remove

1.

Loosen

2.
Remove

3.

frame
Remove

4.

Separate

5.
Replace

6.

the

Paint

7.

8. While

LB

assys

Install

9.

fasten

After

10.

(Refer

Pay

Notes:

(1)

(2)

scale

to

etc.

bad.

is

Method

and

guide

plate

A.

plate

procedure

sprocket

the

tension

belt

the

set

the

B.

assy

wire

the

frame

the

paper

the

to

screw

R B

and

timing

tension

belt

section

not

Do

assembly

Exercise

not

Do

not

Do

the

the

fastening

the

the

adjusting

to

attention

lndisassembly

1)

In

1)

2)

3)

spring

plate

deformed

is

A

screws

bundle

assys

guide

lock

wire

the

to

belt

belt

8-2.)

the

to

damage

care

damage

pinch

Land

twisted

is

A

(Refer

unit.

plate.

(2.5mm

the

of

LB

plate

it.

bundle

base

the

on
plate.

tension,

following

leads

to

not

new

timing

the

R

or

x 2)

motor

and

A.

frame.

belt

(Refer

and

unfasten

paper

is

and

if

to

R B

the

of

driving

fix

points

others

belt

found,

there

if

is

there

section

fastening

from

set

the

from

motor

(2.5mm

pulley

section

to

screw

the

the

in

by

the

plate

guide

between

them

change

space

a

is

between

space

a

1-1.)

frame

teh

base

the

frame

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between

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unit

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REPLACEMENT PARTS LIST

REF.
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NOTES:

* * *

Be
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PART

CPU

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IC1

}

IC2
IC3

IC4
IC5
IC6 RH­IC7
IC8 RH-iX01
IC9
IC10

IC11
IC15

IC12
IC13

IC14}
IC

IC16
IC17
IC18
IC1
IC21
IC22

IC16

to

Available in

type

RH-iX0295PAZZ

}

RH ­RH-iX01

RH-iX0134PAZZ

RH
RH-iX0086PA

}

RH-iX0123PAZZ
RH

RH-i
RH

20

(Option)
RH-iX0296PAZZ
RH-

RH-iX0293PAZZ

9

RH-i
DPROM0026PAZZ

(CG-

ROM

be

ordered

of

the

applicable host

Host

computer

MZ-80B
MZ-80K
MZ-80A

development)

(Under

iX0292PAZZ

iX0272PAZZ

-iX

0078PAZZ

-iX0249
X0294PAZZ

-iX0250

iX0074PAZZ

X0248PAZZ

separately.

the

TRANSISTORS

01

l

VS2SD9861

~16

017)

018
019

020
021

VS2SB74

}

VS2SA1015

To

have

sure

to

use

maintaining

MODEL

NO.

BOARD

ZZ

CIRCUITS

02

P

AZZ

04PAZZ

?Z

PA

ZZ

PAZZ

&

IC13

control)

following

MZ-8BP5R
MZ-8KP5R
MZ-8AP5R

I

1-1

31

I

1

-1

II

-1

"HOW

your

order

filled

1.

MODEL

3.

PART

regular parts

the

of

the

set_

UNIT

TD62003

SN74LS42N
SN74LS32N
SN75189N

SN74LS244N
TMP8155P

T
SN74LS273N

CG-ROM

SN74
SN74LS04N
TC40H004P
TMP80

ROM

model names according

computer.

Model

2SD986

2SB743

2SA1015

for

safety

MZ

DESCRIPTION

securing

of

the

-80P6

SECTION

Assembled CPU Board

(Not

replacement

SN74LS05N

TD62504P
SN74LS14N

NE555

MP8085A

is

of

(Under
(Under

P

&

LS

374N

39

P-6

&

IC21

not

standard and

ROM

development)
devel

(TR

(

TR

(CPU)

IC13

(CPU)

control

opment)

TO

ORDER

promptly

REPLACEMENT PARTS"

and correctly,

NAME

NO. 4.

the

set.

safety and re

Be

su

re

to

repl

CODE

* * *

Unit

item)

AE

Arry)

Arry)

cont

rol

needs

to

the

AK
AM

AK
AG
AH
AF
AN

AS
BA

AZ
AO

AN
AE
AF
BB
BB

AF

I

AF

AC

I

please

furnish the

2. REF. NO.
DESCRIPTION

liability

of

the

ace

these parts

REF.

I

NO.

set. Parts

with

specified ones

PART

DIODES

01

l

RH-DX8402YAZZ

d22

023

}

024
026
0

25

~DJ

Z05

ZD6

Z07

RESISTORS

R1
R2
R3
R6
R7
R4
R5 VRS-PU3DB821 J
R8

R9 )

R10
R20
R27

All

R34
R39
R12
R13
R19
R29
R30
R45

R14 }
R18

R15
R17

R32

R33
R35
R36

R16
R28

R21
R22
R31

R40
R42

VHD1

VHD1

l

VHD-1

VHD05Z4R7XI-1

VH005Z5R6U

VRW

}

}

-K

VRD-RU2EE122J

l

VRD-R

l

VRD-RU2EE472J

VR D-ST2H F 1

VRO-RU2EE151

~

VRD-RU2EE222J

~

VRD-RU2EE103J

}

VRD-RU2EE101J

VRO-RU2EE102J

~

S1555111 A

S95311/-1

Z2411/-1

V3HD121

U2EE332J

following

marked

NO.

I-1

J

02J

J .

information.

with".::!:."

for

maintaining

DESCRIPTION

S5277B

1

S·1555

1S953

1

Z24,

Zener

05Z4

.7

X,

05Z5.6LIU.

120

ohm

1.2K

ohm,

820

ohm,

3.3K

ohm,

4.7 K

ohm,

1 K

ohm

150

ohm,

2.

2K

ohm,

10K

ohm,

100

ohm,

1 K

ohm,

( - ) are

Zener

Zener

,

5W

%W

2W

%W

%W

, 'hW

%W

%W

%W

%W

%W

important

the

safety and

CODE

I

AB

AA

AB

AD

AB
AB

AC

AA

I

AB

I

AA

AA

AA

I

AA

I

AA

I

AA

I

AA

I

AA

-65

-

PARTS LIST

REF.

NO.

R44 J
R46

R23}

R24
R43

R25}

R37
R38
R26
R41
RA1
RA2
RA3
VR1

PART NO.

VRD

-RU2EE471 J

VRD-RU2EE153J

VRS-PU3DB681 J
VRD-RU2EE
RR-KZ0071
R

R-KZ0038PAZZ

R

R-KZ0037PAZZ

RVR

-M0

038PAZZ

CAPACITORS

C1
C6
C7
CS
C10

I

C13
C30
C2
C3
C4
C20
C21
C5
C19

C9

C14
C15 }

C16
C17
C18

C22 }
C

23
C24
C25
C31
C26
C27

C28
C29

VCTYPU1 BD1

VCKZPR1HF103P

I

VCKZPR1HF102Z

}

VCEAAU 1 CW476Y

VCSACU 1 VE334K
VCCCPU1

VCEAAU1CW106Y
VCOYKU1

VCCCPU 1 H31

VCEAAU 1 HW1

l

VCCSPR1 H622

}

VCOY

}

KU1 HM1

MISCELLANEOUS

1

X'TAL
X

'TAL
F1
F2
F3

CN
CN

RCRSA0013PAZZ

}

2

} OFS- J0001 PA

OFS-J

2

OSOCZ0017PAZZ

3

OPLGZ0086PAZZ

2

DSOCN0151
OLUGP0003PAZZ
0SOCZ001
OSOCZ0012PAZ

OPLGN0504CE

0002PAZZ

150J

PAZZ

04Z

H3220J

HM104K

OOD

05Y

1J

03K

ZZ

PAZ

OPAZZ

ZZ

DESCRIPTION

470

ohm,

15K

ohm,

680

ohm,

ohm,

15
Re

sis

tor
Resistor
Resistor
Variable Resistor, 22K

0.1

MFD, 12V,

0.01

MFD,

1,000

PF,

47

MFD,

0.33MFD,
22PF, 50 V, Ce

10

MFD,

0.1

MFD, 50V.

10 PF,

50V,

1

MFD,

220 PF,

0.

01 MFD,

Crystal, 6

Fuse, 1 A
F

use, 2A

28-Pin Socket
25-Pin

Z

Z

Terminal

ead

Wire w

L

1-Pin L

ug

Pi

n I C Socket

24­40-Pi n I C Socket
5-Pin

Terminal

'k.W

'k.

W

2W

'k.W

Arry

1.2K

Arrv

·3.

3K

Arry 3.3K

Ceramic

50V,

50V,

Ceramic

16V,

Aluminum

35V,

Tanta

ramic

16V,

Alumin

Film

Cer

amic

50V,

Aluminum

50V,

Ceramic

50V,

MHz

ith

9-Pin Socket

ohm
ohm
ohm

ohm

Cerami c

lum

um

Film

x 8
x 8
x 7

CODE

AA

AA

AB

AA
AD
AC
AC
AE

AB

AA

AA
AB

AC
AA

AB
AB

AA

AB

AA

AB

AP

AH
AH

AL
BF
AK

AA

AF
AH
AB

REF. PART

I

NO.

* * * SWITCH

3

DPWB-0290PAZZ

DIODES

D1

}

D2
D3

RH-PX0047PAZZ
RH-

PX0033PA

RESISTORS

R1

}

R2
R3

VRD-SC2EF121J
VRD-SC2EF271J

MISCELLANEOUS

SW1

l

SW2
SW3

BUZZER

OSW-P001 OPAZZ

PALMB0003PAZZ

4

DSOCN0152PAZZ

5

PSPAK0009PAZZ

* * * POWER SUPPLY

DB0XD0017PA

6

6

DBOXD0035PAZZ

INTEGRATED

IC101
J

C102

TRANSISTORS

0101
0102
BD101

BD102}
BD103

ZD101
ZD102

RESISTORS

R101
R102

CAPACITORS

~

C101

~

C102

C

103
C104
C105
C106
C107
C108

RH-iX0268PAZZ
RH-i

VS2SD833
RH-P
VH

DS2VB
VHDS4VB10
VH

E05Z
VH EEOB0126/-1

VRD
VRD-RU2EE561

}

RC-CZ0180PAZZ
VCEAAU1

VCEAA01
VCEAAU 1 CM688M 6,800MFO,
VCEAAU 1 VM338M
VCEAAU1 VW336M
VCEAAU1AW107M

NO.

PWB

UNIT

Assembled
(Not

LED

ZZ

LED

120

270

Top

ON /

Buzzer
L

ead Wire .with

LED

UN

ZZ

Assembled Power Supply
Unit
(for

Assembl

Unit
(for

CIRCUITS

X0269PAZZ

AND

///

-1

X200

1 Y

AZZ

1 0//- 1 S2V81 0, Bridge

//-F

6R8Z/1

-R U2EE

1 02J 1 K

HM108M
HC568Y

TA78015,

Si3552,

DIODES

2SD833
PC617 Pho

S4VB10,

A

05Z6R8Z,

EOB01-26, Zener

J

560

0.
Line
1

5,600MFD,

3,
33MFD, 35V,

1 OOMFD.

047MFO,

,OOOMF

300MFD,

DESCRIPTION CODE

SECTION * * *

Switch

PWB

replacement

(Green)
(Red)

ohm ,

'!..W

ohm,

'!..W

of

Form,

OFF

Line Switch

Spacer

IT

SECTION

(Not

replacement i

220V)

ed Power

(Not

replacement item)

240V)

15V-R

5V-Regulator

to-

Bridge

Zener D iode

ohm,

'k.W

ohm,

'k.W

250V,

Capacitor

D,

50V,
50V,
16V, Aluminum
35V,

10V,

Lin

9-Pin Socket

coup

Aluminum

Aluminum

item)

e Feed,

* * *

tem)

Supp ly

egu

lat

or

ler

Diode
Diode

Diode

Aluminum
Aluminum

Aluminum

Unit

AD
AD

AA
AA

AD

AH
AK
AA

AK
AV

AL
AK
AG

AK
AB

AD

AA
AA

AH
AF

AP
AG
AG
AC
AB

-66-

PARTS LIST

REF.
NO.

C109
C110
C111

VCTYPU1
VCEAAU1
R

C-OZ0003P

MISCELLANEOUS

6

T101

T101

L101

~

F101

.6.

F1

.~

F105

~

F103}

L-

F104

SW101

~

S0101

7

8

9

10
11
12

13

RTRNP0048PAZZ

RTRNP0056PAZZ

RTRNZ0005PAZZ

}

02

OFS-C0005PAZZ

OFS-C2002T
OSW-C0003PAZZ

OSOCA0003PAZZ
DSOCN0159PAZZ
PRDAR0034PAZZ
OFSHA0001

LANG

PRDAR0043PAZZ
PSPAN0005VAZZ
OLUGP0005PAZZ
PZETN0009VAZZ

PSPAM0001

PSPAY0003PAZZ

* * *

14
15
16

17

18

19
20
21
22
23

24
25
26
27
28
29

30

31
32

33
34
35
36
37
38
39

40
41

GCABA8422PASA
GCABB8422PASA
GC0VA0012PASA
GCOVA0013PASA
HBDGD0007PASA
HBDGB1
DBTN-0004PASA

DKNB-0002PASA
PCDVS0133PAZZ
P K Y

U-0003PAZZ
PGiDW0003PAFC
PG

iDP0001
PGUMS1010PASA
PG

U M
PG

U M
PGUMZ0004PAZZ

GCOVA0007PASA

LSFTZ0011
LSFTZ0015PAZZ
LH

LDZ0012PAZZ
LANGF0060PAZZ
LANGF0061
LSTPF2018PAZZ

LSTPF2019PAZZ
LSTY

M0009PAZZ

LSTYM001
LFiX-0009PAZZ
LX-BZ0079PAZZ
LBNDC0001
LX

-

BZ0076PAZZ

0TiPZ0022PAZZ

PART

NO.

ED104Z

EM107M

AZ

AZZ

PAZZ

K0325PAZZ

VAZZ

OTHER

002CES/

PAZZ

Z0002P

A

Z0003P

AZZ

PAZZ

PAZZ

OPAZZ

PAZZ

0.1
100MFD,

0.1

Z

Power

(for
Power

(for
Line

Fuse,

Fuse.

A.C
Appliance

Lead Wire
Radiator

Fuse
Switch
Sub
PWB
Appliance
Insulating

Insulating Sheet

Insulating Cover

SECTION

Cabinet
Cabinet
Cover A
Cover
Badge

SHARP

Button

Knob
Cover
Sound-Deadening
Paper
Paper

Foot

ZZ

Rubber A
Rubber

Rubber
Connecting Cover
Stay
Stay
Holder

Angle
Angle
Stopper
Stopper
Hinge
Hinge
Hinge (R)

Frame
Cord
Screw (Special)
Tip
(CPU-FG

DESCRIPTION

MFD,

25V,

25V,

MFD,

1

OOV,

Supply

220V)

Supply

240V)

Coil

T1A

T2A

Switch

Inlet
with

Holder

Fixing

Radiator

Fixing

Spacer

Inlet

(for

(for

Washer

TA78015)

TA78015)

* * *

A

(bottom)

B (Upper)

B

Badge

Assy

with

Spring

for

Sprocket

Guide
Guide

B
C

A
B

for

Release
A
B

A

B
(Right)
(Left)

(L)

Ground

Keeper

with

Lead

Terminal)

Ceramic

Aluminum

Film

Transformer

Transformer

5-pin

Metal

Joint

Material

Roller

Lever

Fixing

Metal

Terminal

Wir

e

Socket

Pin

I

CODE

I

AB
AB
AB

BB

BB

AL

AE

AD
AO

AF

I

AG
AW
AA
AE
AG
AA
AA

AA

AA

AB

BC
BC

AU
AY
AD

AC
AO
AG
AE
AF

AX
AG
AC
AB
AC
AC
AG
AG
AG

AD

AC
AC

AG
AG
AE
AE

AB
AG
AC
AC
AB

REF.

NO.

DTiP-0052PAZZ

6
6

~

6

42
43
44
45
46

* * *

OACC
0ACCB0001

TLABH0002PAZZ

TSPCE0027PAZZ

TiNSE0035PAZZ
PMAGG0003PAZZ
LANGF0067PAZZ

MSPRP0080PAZZ
PZETV0019PAZZ
LSTYP0001

PRINTER

FRAME COMPONENTS

101
102

DRIVE

103
104
105

94

V F

94

V F

MECHANICAL

94VF303027000

94VF303026010

94VF303031000

DETECTING

106
107

108
109
110
111
112

94VF31
94

VF303007020

94

VF31

94VF303009010

94

V A

94

V F

94

V F

TRANSMISSION

113

114
115
116
117
118
119
120
121
122
123

124
125
126
127
128
129

,

130
131
132
133
134

135
136

94VF303014010
94

VF303017000

94

VB210151490
94VF30301801
94VF303018020
94

V F
94

V F
94

V F

94VF304004020

94

VB 1
94VB130103216
94

VF
94VF30300501
94

V F
94VF303001
94

VF303001
94

V F
94

VF30400701
94VF304008010
94

VF304008020
94

V F
94

V F
94VF303001

94VF303001092

-67-

PART

NO.

K0050AF

ZZ

PAZZ

PAZZ

MECHANICAL

304002000
304003000

MECHANICAL

0011000

0009020

170202501
304059000
303030000

MECHANICAL

0

30301

9000

304005000

3040040

303006000

303005020

30300

304008030
303001

01

251

1

060
070

1

490

010
020
030

0

0

0

DESCRIPTION

Braided Wire
ACCord
ACCord
Label

Specification

In

Magnet
Plate
Spring
Ins
Stay

(for

struct

ulating

for

for

UK,

(for

(for

AC

SESA)

ion

Magnet)

Sheet

CPU

UNIT

Frame Assy
Frame Assy

Timing

Belt

Motor

Heat

Paper Feeding

PE

Lever Assy A

PE

Lever
PE
PE
Reed
PTS Sensor
Home

Timing
Belt
Ball

Belt
Belt
Belt

Platen
Platen
Platen
Leaf Spring
Spring Pin
Carriage
Head
Head
Carriage

Carriage

Head

Paper
Scale
Paper

Paper
Scale Spring
Scale Spring R

Ribbon

Spring

Lever

Shaft

Board

Switch

Position Sensor

Belt

Driving

Bearing

Driven

Pulley

Driven

Pulley

Tension

Unit
Gear
Bearing

(6-0.15-11)

(</)2

Assy

Lock

Lever

Lock

Lever
Shaft
Shaft

Adjust

Holding

Shaft

Holding
Holding

Mask

UK,

SESA)

Cord

Panel

(for

UK)I

Manual (English)

Board

SECTION

LB
RB

Motor

Assy

Sinker

Motor

Assy

Board Assy

Assy

Pulley

Flange

Plate

(for

Platen)

x 14)

Spring
A
B

Lever

Lever

Roller

A

Spring

L

*

CODE

AT
AO
AO

I

AC

AE

BB
AE

AE
AE
AC
AB

* *

AZ
BA

BV
AR
BU

AO
AE

AD
AK
AK
BD

BE

BB
AH
AY
AH
AE
AT
BX

AG
AK

AB

AB
AZ
AK
AC
BD
BK
AN
AO
AX
AG
AE
AF
AF
A L

PARTS LIST

REF.
NO.

137
138

PAPER

139
140
141
142
143
144
145
146
147
148
149
150
151
1

52
153
154

155
156
157
158

159
160

161

162
163

164

PART NO.

94VF3030011
94 VF401400000

FEEDING

94

V F 30400901 1
94 VF304009020
94VB
94

V F 30303601 0
94VF303011020
94

V F
94

VF303011
94VF303011040
94

VF303011
94

VF3041
94

V F 3041
94

VF
94VF3041 01020
94

V F
94

V F 303001

94VF303021001

94

V F 30303701 0

94VF303037020
94

VF304101

94VF304101

94

VF3041

94

V F

304 1 02000

94

VF3041

94VF3041

94

VF

304101

94

VF304001

00

MECHANICAL

130102916

303036020

060

050
04010
04020

304004020

30301 0020

080

030

060

01040

03000

01010

050

010

DESCRIPTION

Head

Sitting

Pr

int

Head

Unit

Outer

Paper Gutde

Inner Paper
Spring Pin
Sprocket
Sprocket

Paper H
G-Pin·

Paper
Sprocket
Sprocket
Sprocket
Sprocket

Sprocket

Paper
Sprocket
Paper
Sprocket
Paper
Sprocket
Sprocket

Spring
Sprocket
Sprocket

Assy A
Sprocket

Assy B
Sprocket
Paper Position

Plate

Sprocket

(cp2

Frame L

Wheel

olding

Holding

Lock Lever
Shaft
Gear
Bearing

Guide

Guide

Tran

Guide

Frame R

Holding

Mounting
Mounting

Mounting
Mounting

Mounting

Reduct ion Gear

Mounting

Plate

Guide

A

x 8)

Cover L

Cover Spring

Shaft

Roller

smission Gear

Plate A

Cover R

Lever L
Lever

Lever R
Plate

Plate

Adjusting

Shaft

I

CODE

I

AH
BU

BA

AV

AB
AX
AR
AO
AC
AD

AL
BF
AK
AK

AO

AT

AK

AZ

AX

AO

AF

AD

AF

AK

AL

AG

AN

AT

REF. PART NO.
NO.

165
166
167
168
169
170
171
172
173

RIBBON FEEDING

174
175

176

177

178
179
180
181
1

82
183
184
185

94

VF304001

94

V F

94

VF

94

V F
94VF310006010
94

VF304001

94

V F 304001
94VF304001
94VF31

94

V F

94

V F

94

VB10125219
94VF303014020
94

VF30335201
94

V F
94

V F
94

V F
94

V F
94VF303352070
94VF303352080
94

V F

050
30400 1 030
304001

040
3040060

020

060

070

0006020

30302

0000

303020020

303352030
303352040
303352050
303352060

303352090

1 0

Paper Feeding
Paper Feeding
Paper
Plat

0-ring

MECHANICAL

Planetary Lever Assy
Planetary

0

0

Cartridge

Ribbon

Ribbon
Ribbon
Ri
Ribbon

CONNECTOR COMPONENTS

1

86
187
188

189

INK

94

VF30405601
94VA260112001
94VF304057000
94

VF30302301

RIBBON

94VE

RC-04-1

94VER-041///

0

Terminal
Head
3310

0 Edge Cover

//

With

DESCRIPTION

Release Lever
Release Lever L
Release Lever R

en

Roll-in Protector

Leaf Spring
Ribbon

Ribbon

Ri

bbon

bbon

Connector
Cable A

Cartridge C

Non

Cartridge C

Shaft

Shaft

Feeding

Spring

Cover

Pinion

(~0.0

Driving

Case
Feeding
Pressure
Separ

ato
Separator B
Feeding Spring
Braking Spring

Label

Board

Roller

7-6

Gear

Lid

Knob

Roller
r A

ase

ase

I

)

CODE

AU
AG
AD
BB
AN
AE
AY
AD
AC

AN
AG
AC
AN
AX
AK
AK
AK
AK
AE
AE
AH

BF
AP
BM
AC

BB
AX

-68-

...

MZ-80P6H

IA810905Ksl

Printed

in

Japan