Centronics 101A Manuel utilisateur

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MODEL101A

PRINTER

MAY

1978

Centronics No. 37400020

Rev.

I:EnTROnll:S

. data computer corp.

HUDSON,

NEW

HAMPSHIRE

03051

TELEPHONE

(603)

88_3

-0111

MODEL 101A PRINTER

MAY

1978

REVJSION K

THE

INFORMATION CONTAINEO HEREIN

PROPRIETARV

AND

NOT

BE.RELEASED

REPRODUCED

WITHOUT

WRITTEN

PER-

MiSSiON OF CENTRONICS data computer

COJp.

I:EnTRDnl1:5

data computer corp.

HUDSON

NEW

HAMPSHIRE

03051

TELEPHONE

(603)

883

-0111

TABLE

CONTENTS

Section

1.1

1.2

1.3

SECTION

INTRODUCTION

GENERAL

DESCRIPTION

(FIGURE

1-1).

lOGIC

FLOW

DIAGRAM

(FIGURE

1-2) .

PRINTER

OPERATION.

. . . . . .

1.3.1 Character Printing (Figures 1-3, 1-4) .

1.3.2

Paper

Movement

(Figure 1-5). .

1.4

1.5

SPECIfICATIONS

SUMMARY.

PHYSICAL

DESCRIPTION

SECTIONS

AND

INSTALLATION

AND

OPERATION

·2.1

SITE

PREPARATION

(FIGURE

2-1).

2.2

SHIPPING

CRATE.

. . • . . .

2.3

PAPER

GUIDE

AND

STACKER

ASSEMBLY.

SECTION

THEORY

OPERATION

4.1

INTRODUCTION

(FIGURES

4-1

AND

4-2) · ·

4.2

BASIC

TIMING

(SEE

FIGURE

4-3). ·

4.3

INITIALIZING

THE

PRINTER

· · ·

. ·

· · ·

1-2

1-3

· . 1-3

1-4

1-5

· . .

1-7

· 2

2-2

• • 2

3/2-4

4-1

4-3

4.3.1

Prime

Circuit (Figure 4-4,

Timing;

Figure 4-5,

Circuit).

. . . . • . · · · · · ·

4-4

4.3.2 Select Circuit (Figure 4-6). · ·

4-6

4.4

DATA

. . . . · · · · · · · ·

4-9

4.4.1 .

General

(Figure 4-7/4-8). · · · · · ·

4-9

4.4.2

Data

Strobe . . · · · · · · ·

4-9

4.4.3

Acknowledge

(Figure 4-9). . · · · · ·

4-12

-i-

--REV.

TABLE

CONTENTS

(cont'd)

Section

4.4.4

Busy

Timing

(Figure 4-10, Timing; Figure 4-11,

Circuit)

• . . . . . . . .

. 4-12

4.4.5 Clocking Input

Data

into the Buffer (Figure

4-7, 4-12). . . . . . . . 4-14

4.4.6 Function

Decoder

(Figure 4-12) . . 4-16

4.5

CHARACTER

PRINTING

(FIGURE

4-13) . ·

4-17

4.6

4.5.1

Initiating

the'Printing

Operation (Figure 4-14)"".

4-17

4.5.2

Head

Motion

(Figure

4~14;

Schemattc -

Section 7). . . . . . . . . . . . . . 4-19

4.5.3 Character Registration

and

Timing

(Figure 4-15,

Timing;

Figure 4-16, Circuit)

.'.

4-19

4.5.4 Character Generator

(ROM

-Figure.4-16) .

4-23

4.5.5 Print

Head

Operation (Figures 4-18,

4-19).

. 4-24

4.5.6

Power

Driver Circuits (Schematic, 'Section

4-26

4.5.7 Terminating the Printing Operation. .

4-27

PAPER

MOVEMENT

. · 4-28

4.6.1

tine

Feed

(Figure 4-21,

Circuit;

Figure 4-22,

Timing)

. · · . ·

· · · · ·

4-28

4.6.2

Form

Feed

(Figure

4-2~r,

Circuit;

Figure 4-24,

Timi

ng)

. · · . · . · · · · · . 4-30

4.6.3 Vertical

Tab

(Figure 4-23,

Circuit;

Figure 4-24;

Timi

ng)

. · · . . . .

. 4-32

4.6.4 Vertical

Format

Unit

,;.'

4-33

. · . · · · · ·

4.6.5 Paper

Time

Out

Circuit. (Figure 4-21)

." · ',,4-34

4.6.6

Line

Feed

Solenoid Driver (Schematic -Section 7). 4-34

4.7

SPECIAL

FUNCTIONS.

· 4-34

4.7.1 Bell (Figure

4-.25)

4.7.2 Delete

....

". .

4.7.3 Paper

Empty

(Figure 4-26).

4.7.4

Motor

Control

(Optiopal).

4.7.5 Fault Circuit (Figure 4-30) ·,

· 4-34

4-34

· 4-36

· 4-40

4.8

POWER

SUPPLIES

(FIGURE

4-31,

SCHEMATICS

-.SECTION.

. . 4-40

REV.

4.8.1

+5V

Regulator (Schematic

#63011143)

. . . .

4.8.2+12V

and.-12V

Regulptors (Schematic

#63002308).

4.8.3

+35V

Power

Supply, Unregulated. . .

-ii-

4-43

· 4-44

TABLE

CONTENTS

(cont'd)

Section

SECTION

REMOVAL,

REPLACEM~NT

AND

ADJUSTMENT

PROCEDURES

5.1

INTRODUCTION.

5-1

5.2

MECHANICAL

ASSEMBLIES.

5-1

5.2.1

Cover

(Figure

A).

. . . . . .

5-1

5.2.2 Carriage

Mechanism

(Figure HA). . . . . . . 5-2

5.2.3 Driving

Mechanism

(Figure 8-4

and

Figure

8-5).

. 5-6

5.2.4 Spring

Drum

(Figure

HC)

. .

5-16

5.2.5

Damper

(Figure

HD)

. .

5-17

5.2.6

Frame

(Figure

HE)

. . .

5-18

5.2.7 Paper

Feed

Mechanism

(Figure

HF)

. .

5-24

5.2.8

Feed

Unit (Figure 8-8)

. .

5-26

5.2.9

Form

Feed

Mechanism

(Figure

HH).

5-31

5.2.10

Ribbon

Feed

Mechanism

(Figure

HI)

. .

5-35

5.2.11 Electrical

Hardware

(HJ)

. .

5-44

5.2.12

Paper

Stacker

and

Guide

5-45

5:2.13 Print

Head

and

Associated Assemblies. .

5-45

SECTION

MAINTENANCE

6.1

ELECTRICAL

ADJUSTMENTS

(MODEL

101/101A).

6.1.1

Video

Amplifier Adjustment (Series

100)

6.2

MECHANICAL

ADJUSTMENTS

6.3

PREVENTIVE

MAINTENANCE

(P.M.)

6.4

TROUBLESHOOTING

GUIDE

6.5

RECOMMENDED

TOOLS.

SECTION

ELECTRICAL

DRAWINGS

lAND

LISTS

MATERIALS

SECTION

DRAWINGS

AND

PARTS

LISTS,

MECHANICAL

-iii-

6-1

· 6-2

· 6-4

· 6-6

7-1

· 8-1

REV.

Figure

1-1

1-2

1-3

1-4

1-5

1-6

1-7

1-8

1-9

2-1

4-1

4-2

4-3

4-4

4-5

4-6

4-7

4-8

4-9

4-10

4-11

4-12

4-13

4-14

4-15

4-16

4-17

4-18

4-19

4-20

4-21

LIST

ILLUSTRATIONS

Model

lOlA

Printer

(Front

Cover

Removed).

Basic

Block

Diagram.

Printing the Letter

(H)

Head

Components

Paper

Movement

Mechanism.

Left Front

View

lOlA

Printer.

Right Front

View

lOlA

Printer

Rear

View

lOlA

Printer.

Rear

View

(lOlA

Electronics Cavity

Removed).

Printer

Dimensions

Model

lOlA

Functional

Block

Diagram

Functional

Flow

Chart .

Basic

Timing

Circuit

Prime

Timing

Prime

Circuit.

Select Circuit .

Input

Data

Timing

Busy

Condition.

Data

Input Circuit .

Acknowledge

Circuit.

Input

Data

Causing

Busy

Circuit.

Function

Decoder.

Character Printing

Block

Diagram

Forward

and

Reverse Clutch Drive Circuits

Character Timing.

Character Registration

and

Timing

Circuit

Normal

and

Elongated Characters.

Solenoid Positions, 1 through 7.

Head

Timing

Power

Driver

Waveform

Line

Feed

Circuit

-iv-

Page

· 1-2

· 1-3

· 1-4

· 1-8

· 1-9/1-10

1-9/1-10

2-1

· 4-1

· 4-2

· 4-3

· 4-4

· 4-5

4-7

· 4-9

· 4-10

4-11

· 4-12

· 4-13

· 4-15

· 4-17

· 4-18

· 4-20

· 4-21

· 4-24

· 4-25

· 4-26

· 4-29

Figure

4-22

4-23

4-24

4-25

4-26

4-27

4-28

4-29

4-30

4-31

5-1

5-2

5-3

LIST

ILLUSTRATIONS

(cont'd)

Line

Feed

Timing.

Form

Feed

and

Vertical

Tab

Circuit.

Form

Feed

and

Vertical

Tab

Timing

Bell

Circuit.

Paper

Empty

Motor

Control

Mounting.

Motor

Control

Board

Interconnection

Diagram.

Motor

Control

Timing

Fault

Circuit.

Power

Distribution

Diagram

Series

101

Drive Train.

Main

Motor

Drive

and

Drive Belt

Arrangements

Determining Backlash Adjustments, Shaft

(HB-27)

Page

4-30

4-31

4-32

4-35

4-37

4-38

4-40

4-41

4-42

5-6

5-8

5-14

5-4

Use

of Feeler

Gauge

for Backlash Adjustment,

(HB-30,22)

5-14

5-5

5-6

5-7

5-8

5-9

5-10

5-11

5-12

5-13

5-14

5-15

5-16

5-17

5-18

7-1

Bushing

End-Play Adjustment for Preload Clutch Shaft

(HB-50)

Flexible

Timing

Fence

Mounting,

Series

101

Fence

Adjustment

'and

Optic Housing.

Vertical

and

Horizontal Alinement of Single

Channel

Optics

Housing

Location of Left

Reed

Switch

(Top

View)

Removal

of Belt

(32)

Idler

Slide (28),

and

Drive

Pulley (26)

Adjustment for Paper Holder

Gate

Maintaining 5/8-in. (15.9

mm)

Nominal

Margin

Two

Adjustments,

Gear

with Stop

Cam

(HH-23)

and

Inside

CAM

(HH-14)

Ribbon

Feed

Mechanism

(Rear of

Printer,

Left Side)

Backlash Adjustment,

Bevel

Gear

(HI-43,

59)

Driving Slide Shaft A - Adjustment.

Ribbon

Reversing

Rod

Adjustment

Ribbon

Reverse

Timing

Schematic

Diagram,

Electronic'

Card

(Sheet 1 of 2).

-v-

5-16

5-20

5-21

5-22

5-23

5-28

5-29

5-30

5-34-

5-40

5-41

5-42

5-43

7-1

REV.

Figure

7-2

7-3

7-4

7-5

7-6

7-7

7-8

7-9

7-10

7-11

7-12

7-13

7-14

7-15

7-16

7-17

7-18

7-19

7-20

7-21

7-22

7-23

7-24

7-25

7-26

7-27

7-28

7-29

8-1

8-2

8-3

REV.

LIST

ILLUSTRATIONS

(cont'd)

Schematic

Diagram,

Electronic

Card

(Sheet 2 of 3).

Schematic

Diagram,

Electronic

Card

(Sheet 3 of

3).

Schematic

Diagram,

Electronic

Card

(Sheet 1 of 3).

Schematic

Diagram,

Electronic

Card

(Sheet 2 of 3).

Schematic

Diagram,

Electronic

Card

(Sheet 3 of

3).

Schematic

Diagram,

Power

Driver

Board

(Sheet 1 of 2).

Schematic

Diagram,

Power

Driver

Board

(Sheet 2 of 2).

Schematic

Diagram,

Video

Amplifier.

Schematic

Diagram,

+5V

Volt Regulator.

Schematic

Diagram,

!12

V~lt

Regulator.

Multitap 50/60

Transformer .

Wiring

Diagram,

Printer

Mechanism

Interconnection

Diagram,

Connector

Board.

Schematic

Diagram,

Motor

Control (Optional).

Schematic

Diagram,

LED

Tape

Reader

(Optional) .

Component

Board

Assembly,

Electronic

Card

,#1

Component

Board

Assembly,

Electronic

Card

Component

Board

Assembly,

Power

Driver

Board

Component

Board

Assembly,

Video

Amplifier .

Component

Board

Assembly,

Volt Regulator.

Component

Board

Assembly,

~12V

Regulator

Component

Board

Assembly,

Connector

Card

Component

Board

Assembly,

Motor

Control (Optional)

Harness

Assembly,

Motor

Control.

Electronic

C~vity

Assembly

Harness

Assembly

Cable

Assembly,

Computer

Input

Power

Cable

Assembly

Mechanical

Subassemblies Series

101

Cover

Assembly

- A .

Carriage

Mechanism

-vi-

Page

7-3

7-4

7-5

7-6

7-7

7-8

7-9

7-10

7-11

7-12

7~13

7-14

7-15

7-16

7-17/7-18

7-19

7-21

7-23

7-25

7-27

7-29

7-31

7-33

7-35

7-37

7-39

7-41

7-43

8-3

8-5

8-7

Figure

8-4

8-5

8-6

8-7

8-8

8-9

8-10

8-11

8-12

8-13

8-14

LIST

ILLUSTRATIONS

{cont'd}

Page

Drive

Mechanism

(Part

1),

Series 101. . . 8-9

Drive

Mechanism

(Preload Clutches)(Part

2),

Series

101

. 8-11

Spring

Drum

8-13

Damper

HD.

Frame

Paper

Feed

Mechanism

Feed

Mechanism

(Left

and

Right) -

Form

Feed

Mechanism

Ribbon

Feed

Mechanism

HI.

Electrical

Hardware

Head

and

Associated

Assemblies

Note

Refer

the

Engineering

Change

Notice

(ECN)

sheets

shipped

with

the

printer

for

changes

made

the

printer

which

have

not

yet

been

incorporated

into

the

drawings

this

technical

manual.

Al-

ways

keep

these

Engineering

Change

Notice

sheets

with

the

manual.

-vii-

· . 8-15

· . 8-17

· . 8-19

· . 8-21

8-23

· . 8-25

· . 8-27

· .

8-28

REV.

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