Olivetti JP 90 Manuale utente

JP 90

Printer

SERVICE MANUAL

Code 681640J-00

PUBLICATION ISSUED BY:

Olivetti Lexikon, S.p.A.

Documentation

77, Via Jervis - 10015 Ivrea (Italy)

1996, Olivetti

TRADEMARKS

CENTRONICS is a trademark of Centronics Data Computer Corporation.

EPSON and LQ 850 are trademarks of Epson Seiko Corporation.

HP, DeskJet and PCL III+ are trademarks of Hewlett-Packard Company.

IBM and Proprinter 4207 are trademarks of International Business Machine Corporation.

MS-DOS and MS-WINDOWS are trademarks of Microsoft Corporation.

Printed in Italy by:

681640J JP 90 - Service Manual iii.

PREFACE

This Service Manual gives the mechanical and electronic information needed to service the JP 90 ink-jet

printer.

Refer to this manual only if the failure has not been corrected after following the troubleshooting steps

explained in the User's Guide.

SUMMARY

This manual is divided into chapters.

The chapters are ordered in a way to develop an autonomous and gradual approach to the printer

functions.

Certain paragraphs in this manual are highlighted with a screen background so as to bring particularly

important information or procedures to your attention.

Disregarding the information explained in these paragraphs could cause printer failures.

SECTOR/RANGE PRODUCT: Q6 JP 90

DISTRIBUTION: General (G)

FIRST EDITION: October 1996

681640J JP 90 - Service Manual

TABLE OF CONTENTS

1. OVERVIEW

1-1 1.1 MAJOR CHARACTERISTICS

1-2 1.2 GENERAL BLOCK DIAGRAM

1-3 1.3 LOCATING THE FUNCTIONAL COMPONENTS

1-4 1.4 FIRMWARE AND CHARACTER GENERATORS

1-6 1.5 OPTIONS

1-6 1.6 ACCESSORIES

1-7 1.7 INK-JET PRINT HEAD OPERATION

1-11 1.8 COLOR INK-JET PRINT HEAD OPERATION

2. OPERATING COMMANDS

2-1 2-1 CONSOLE

3. INSTALLATION

3-1 3.1 GENERAL RULES

3-2 3.2 UNPACKING THE PRINTER

3-2 3.3 PLUGGING THE AC/DC ADAPTER TO THE ELECTRICAL POWER OUTLET

3-3 3.4 INSTALLING THE PRINT HEAD

3-5 3.5 INSERTING THE BATTERIES

3-6 3.6 INSERTING THE BATTERY PACK

3-7 3.7 LOADING PAPER

3-9 3.8 PRINT TEST

3-9 3.9 CONNECTING THE PRINTER TO THE SYSTEM

3-9 3.10 POWERING OFF THE PRINTER

4. SOFTWARE INSTALLATION AND USAGE

4-1 4.1 THE WINDOWS ENVIRONMENT

4-2 4.2 THE DOS ENVIRONMENT

5. AUTODIAGNOSTICS, TESTING PROCEDURES AND TROUBLESHOOTING

GUIDE

5-1 5.1 POWER ON DIAGNOSTICS

5-1 5.2 MONOCHROME PRINT TEST

5-2 5.3 DATASCOPE PRINTING (HEX DUMP)

5-3 5.4 TROUBLESHOOTING GUIDE

6. ELECTRICAL CONNECTIONS

6-1 6.1 MAJOR COMPONENTS ON THE XP28 CPU BOARD

6-2 6.2 POWER SUPPLY CIRCUIT

6-3 6.3 CONNECTOR SIGNALS

7. MAINTENANCE

7-1 7.1 CLEANING THE PRINT HEAD AN NOZZLES

vi 681640J

8. DISASSEMBLY/REASSEMBLY PROCEDURES

8-1 8.1 PRELIMINARY WARNINGS

8-2 8.2 PRINTER CASING

8-4 8.3 ASF ASSEMBLY

8-7 8.4 INTAKE UNIT

8-8 8-5 PAPER FEED SHAFT

8-9 8.6 MAIN BOARD

8-10 8.7 PAPER FEED MOTOR

8-11 8.8 BELT AND PRINT HEAD CARRIAGE

8-14 8.9 CARRIAGE MOTOR

8-15 8.10 PAPER DETECTION PHOTOSENSOR

8-16 8.11 CONSOLE

681640J 1-1

JP 90 - Service Manual

1. OVERVIEW

1.1 MAJOR CHARACTERISTICS

The JP 90 is an ink-jet printer that offers a high degree of reliability, an outstanding print quality and runs

runs very quietly.

Technical and Functional Characteristics of the Basic Machine

Print head: Bubble ink-jet with replaceable ink cartridge.

Matrix: 600 x 300 dpi.

Print speed of the monochrome printer version (10 cpi)

DOS: DRAFT 180 cps

LQ 140 cps

Windows : Approximately 3 pages per minute (ppm)

Paper handling: ASF capable of holding 15, 80 g/m2 sheets of paper

Interface: Centronics parallel

Emulation: PCL III+ (HP DJ 500), IBM Proprinter X24, EPSON LQ 850

Power supply: 220-240 V, 110-120 V

Power absorption: < 15 W

Dimensions: Height: 67 mm, width: 300 mm, depth: 132 mm,

weight: 1.1 Kg (without the adapter)

Fig.1-1 JP 90 Printer

1-2 681640J

1.2 GENERAL BLOCK DIAGRAM

ERGONOMICAL INTERFACEERGONOMICAL INTERFACE

ERGONOMICAL INTERFACE

CABLECABLE

CABLE

PARALLEL INTERFACEPARALLEL INTERFACE

PARALLEL INTERFACE

(CENTRONICS)(CENTRONICS)

(CENTRONICS)

CONSOLECONSOLE

CONSOLE

CARRIAGECARRIAGE

CARRIAGE

MOTORMOTOR

MOTOR

POWER SUPPLY:POWER SUPPLY:

POWER SUPPLY:

-ALIALI

ALIALI

ALI 009009

009009

009 SOUTH AFRICASOUTH AFRICA

SOUTH AFRICASOUTH AFRICA

SOUTH AFRICA

-ALIALI

ALIALI

ALI 018018

018018

018 EUROPEEUROPE

EUROPEEUROPE

EUROPE

-ALIALI

ALIALI

ALI 012012

012012

012 G.B.G.B.

G.B.G.B.

G.B.

-ALIALI

ALIALI

ALI 013013

013013

013 AUSTRALIAAUSTRALIA

AUSTRALIAAUSTRALIA

AUSTRALIA

-ALIALI

ALIALI

ALI 014014

014014

014 UNITED STATESUNITED STATES

UNITED STATESUNITED STATES

UNITED STATES

BATTERY PACKBATTERY PACK

BATTERY PACK

-NICDNICD

NICDNICD

NICD

-NIMHNIMH

NIMHNIMH

NIMH

UNIVERSAL POWER SUPPLYUNIVERSAL POWER SUPPLY

UNIVERSAL POWER SUPPLY

ANDAND

AND

FAST BATTERY CHARGERFAST BATTERY CHARGER

FAST BATTERY CHARGER

PAPERPAPER

PAPER

DETECTIONDETECTION

DETECTION

PHOTOSENSORPHOTOSENSOR

PHOTOSENSOR

PAPERPAPER

PAPER

MOTORMOTOR

MOTOR

Note: The boxes with dotted outline indicate the options

CPUCPU

CPU

BOARDBOARD

BOARD

XP28XP28

XP28

CIGARETTE LIGHTERCIGARETTE LIGHTER

CIGARETTE LIGHTER

ADAPTER FORADAPTER FOR

ADAPTER FOR

AUTOMOBILESAUTOMOBILES

AUTOMOBILES

PRINT HEADPRINT HEAD

PRINT HEAD

681640J 1-3

JP 90 - Service Manual

1.3 LOCATING THE FUNCTIONAL COMPONENTS

Listed below are the printer's major components:

1 Casing

2 Console

3 Top cover

4 Paper support

5 Front cover

6 Head transport carriage

7 Sliding paper guide

8 AC/DC power socket

9 Parallel interface connector

10 Extractable battery holder/Battery pack compartment

11 Paper feed motor

12 Suction assembly

13 Head transport carriage motor

14 ASF assembly

1-4 681640J

1.4 FIRMWARE AND CHARACTER GENERATORS

Basic Emulation:

The basic firmware is stored in a 4 MB EPROM installed on the XP28 CPU board. It emulates the HP

Deskjet 500 (PCL III +), IBM Proprinter X24 and EPSON LQ 850 printers, with all the related character

generators.

The JP 90 selectes between these emulations via software.

Character Generator:

The character generator assigns a specific printable character to each code in the graphic set.

The first 128 codes in the ISO table (0-127) are standard and represent the USA ASCII character set.

National variants and semigraphic symbols are not included in this code group.

TheallocationofcodesfromthesecondISOcharactersettable(128-255)differsdependingonthecountry

and product.

Character Sets:

The following character sets are available in a PCL III+ emulated machine:

CP 437 International ROMAN 8 Turkish alphabet: CP 857; ISO 8859/9 PC

8 Denmark/Norway CP-850 Multilingual Cyrillic alphabet: CP 866; CP 855; ISO 8859/5

ECMA 94 LATINO 1 ISO Nb 4 United Kingdom Greek alphabet: CP 210; CP 851; ISO 8859/7

ISO Nb 21 Germany ISO Nb 69 France Hebrew alphabet: CP 862; ISO 8859/8

ISO Nb 15 Italia ISO Nb 60 Norway 1 PC Slovenia: CP 852; ISO 8859/2

ISO Nb 61 Norway 2 ISO Nb 11 Sweden: Names Windows 3.1 ANSI

ISO Nb 10 Sweden ISO Nb 17 Spain Windows 3.1 Eastern Europe

ISO Nb 6 USA (ASCII) ISO Nb 2 IRV Windows 3.1 Turkey

ISO Nb 16 Portugal ISO Nb 14 JIS ASCII Windows 3.1 Cyrillic

Legal CP 860 Portugal Windows 3.1 Greece

Denmark OPE 1 UNIX International

Denmark OPE 2 Spain 2

CP 863 French-Canadian

The following character sets are available in an IBM Proprinter X24 emulated machine:

International 1 International 2

Denmark OPE 1 Denmark OPE 2

Spain 2 CP 850

CP 860

The following character sets are available in an EPSON LQ 850 emulated machine:

ITALICS Table GRAPHICS Table:

USA France USA

Gernamy Great Britain Multilingual

Denmark 1 Denmark 2 Portugal

Sweden Italy French-Canadian

Spain 1 Spain 2 Norway

Japan Norway

Latin America Corea

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