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Maintenance Manual

Printronix P7000 Series of Line Matrix Printers

P7000 Series of Line Matrix Printers Maintenance Manual

177705-001B

Trademark Acknowledgements

Trademark Acknowledgements
ANSI is a registered trademark of American National Standards Institute, Inc. Centronics is a registered trademark of Genicom Corporation. Chatillon is a trademark of John Chatillon & Sons, Inc. Code V is a trademark of Quality Micro Systems. Dataproducts is a registered trademark of Dataproducts Corporation. EIA is a registered service mark of Electronic Industries Association.

ENERGY STAR® is a registered trademark of the United States Environmental Protection Agency. As an ENERGY STAR® Partner, Printronix has determined that this product meets the ENERGY STAR®
guidelines for energy efficiency. IBM is a registered trademark of International Business Machines Corporation. IEEE is a registered trademark of the Institute of Electrical and Electronics Engineers. IGP is a registered trademark of Printronix, Inc. Intelligent Printer Data Stream and IPDS are trademarks of International Business Machines Corporation. Java is a trademark of Sun Microsystems. LinePrinter Plus is a registered trademark of Printronix, Inc. Linux is a registered trademark assigned to Linus Torvalds. MS-DOS and Microsoft Windows (3.1x, 95, 98, Me, NT, 2000, and XP) are trademarks of Microsoft Corporation. PC-DOS is a trademark of International Business Machines Corporation. PGL is a registered trademark of Printronix, Inc. PrintNet is a registered trademark of Printronix, Inc. Printronix is a registered trademark of Printronix, Inc. PSA and PSA3 are trademarks of Printronix, Inc. QMS is a registered trademark of Quality Micro Systems. SureStak is a trademark of Printronix, Inc. Torx is a registered trademark of Camcar/Textron Inc. UNIX is a registered trademark of The Open Group. Utica is a registered trademark of Cooper Power Tools.

Warranty And Copyright Information

Warranty And Copyright Information
Printronix, Inc. makes no representations or warranties of any kind regarding this material, including, but not limited to, implied warranties of merchantability and fitness for a particular purpose. Printronix, Inc. shall not be held responsible for errors contained herein or any omissions from this material or for any damages, whether direct, indirect, incidental or consequential, in connection with the furnishing, distribution, performance or use of this material. The information in this manual is subject to change without notice. This document contains proprietary information protected by copyright. No part of this document may be reproduced, copied, translated or incorporated in any other material in any form or by any means, whether manual, graphic, electronic, mechanical or otherwise, without the prior written consent of Printronix, Inc. All rights reserved. Copyright © 2005, Printronix, Inc.

ENERGY STAR

The Environmental Protection Agency ENERGY STAR Computers program is a partnership effort with manufacturers of data processing equipment to promote the introduction of energy-efficient personal computers, monitors, printers, fax machines, and copiers to help reduce air pollution and global warming caused by electricity generation. Printronix, Inc. participates in this program by introducing printers that reduce power consumption when they are not being used. As an ENERGY STAR Partner, Printronix has determined that this product meets the ENERGY STAR guidelines for energy efficiency.

NOTE: The ENERGY STAR emblem does not represent EPA endorsement of any product or service.

Communication Notices
Federal Communications Commission (FCC) Statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed

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Communication Notices

and used in accordance with the instructions, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Properly shielded and grounded cables and connectors must be used in order to meet FCC emission limits. Printronix is not responsible for any radio or television interference caused by using other than recommended cables and connectors or by unauthorized changes or modifications to this equipment. Unauthorized changes or modifications could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Fules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

European Union (EU) Conformity Statement

Printronix cannot accept responsibility for any failure to satisfy the protection requirements resulting from a non-recommended modification of the product, including the fitting of option cards not authorized by Printronix. This product has been tested and found to comply with the limits for Class A Information Technology Equipment according to European standard EN 55022. The limits for Class A equipment were derived for commercial and industrial environments to provide reasonable protection against interference with licensed communication devices. WARNING This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Properly shielded and grounded cables and connectors must be used in order to reduce the potential for causing interference to radio and TV communications and to other electrical or electronic equipment. Such cables and connectors are available from Printronix authorized dealers. Printronix cannot accept responsibility for any interference caused by using other than recommended cables and connectors.

Industry Canada Compliance Statement
This Class A digital apparatus complies with Canadian ICES-003.

Communication Notices

Cet appareil numérique de la classe A conform á la norme NMB-003 du Canada.

Statement of CISPR 22 Edition 2 Compliance
Attention: This is a Class A Product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Japanese VCCI Class A

Taiwan

Warning: This is a Class A product. In a domestic environment this product may cause radio interference in which case the user will be required to take adequate measures.

Australia/New Zealand
Attention: This is a Class A Product. In a domestic enviroment this product may cause radio interference in which case the user may be required to take adequate measures.

Communication Notices

Korea

China
Declaration: This is a Case A Product. In a domestic environment this product may cause radio interference, in which case the user may be required to take practical actions.

German Conformity Statement
Zulassungsbescheinigung Gesetz über die elektromagnetische Verträglichkeit von Geraten (EMVG) vom 30. August 1995 Dieses Gerät ist berechtigt in Übereinstimmung mit dem deutschen das EGKonformitätszelchen - CE - zu führen. Der Außteller der Konformitätserklärung ist die Printronix......(1) Informationen in Hinsicht EMVG Paragraph 3 Abs. (2) 2: Das Gerät erfüllt die Schutzanforderungen nach EN 55022 und EN 55024 Klasse A. EN 55022 Klasse A Geräte bedürfen folgender Hinweise: Nach dem EMVG: "Geräte dürfen an Orten, für die sie nicht asreichend entstört sind, nur mit besonderer Genehmigung des Bundesminesters für Post und Telekommunikation oder des Bundesamtes für Post und Telekommunikation betrieben werden. Die Genehmigung wird erteilt, wenn keine elektromagnetischen Störungen zu erwarten sind." (Auszug aus dem EMVG, Paragraph 3, Abs. 4) Dieses Genehmigungsverfahren ist nach

European Union (EC) Electromagnetic Compatibil-

Paragraph 9 EMVG in Verbindung mit der entsprechenden Kostenverordnung (Amtsblatt 14/93) kostenpflichtig. EN 55022: Dieses ist eine Kategorie A Vorrichtung. Betrieb in den Wohnbereichen kann elektrische Störung verursachen. Es ist die Verantwortlichkeit des Benutzers, passende Gegenmaßnahmen zu ergreifen. EN 55024: Begrenzung Werte für Gebrauch in bevölkerten Bereiche, kommerziellen und Industriegebieten sind innen Übereinstimmung mit den spezifizierten Anforderungen Hinsichtlich Störfreiheit. Anmerkung: Um die Einhaltung des EMVG sicherzustellen sind die Geräte, wie in den Handbüchern angegeben, zu installieren und zu betreiben.

European Union (EC) Electromagnetic Compatibility Directives
This product conforms to the protection requirements of EC Council Directive 89/336/EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility. Printronix cannot accept responsibility for any failure to satisfy the protection requirements resulting from a nonrecommended modification of the product, including the fitting of option cards not authorized by Printronix. Dieses Gerät ist berechtigt in Übereinstimmung mit dem deutschen EMVG vom 9.Nov.92 das EG-Konformitätszeichen zu furhren. Properly shielded and grounded cables and connectors must be used to reduce the potential for causing interference to radio and TV communication and to other electrical or electronic equipment. Printronix cannot be responsible for any interference caused by using other than recommended cables and connectors. This product has been tested and found to comply with limits for Class A Information Technology Equipment according to CISPR 22/European Standard EN 55022. The limits for Class A equipment were derived for commercial and industrial environments to provide reasonable protection against interference with licensed communication equipment. Warning: This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. Dieses Gerät erfüllt die Bedingungen der EN 55022 Klasse A. Für diese Klasse von Geräten gilt folgende Bestimmung nach dem EMVG: Geräte dürfen an Orten, für die sie nicht ausreichend entstört sind, nur mit besonderer Genehmigung des Bundesminesters für Post und Telekommunikation oder des Bundesamtes für Post und Telekommunikation betrieben werden. Die Genehmigung wird erteilt, wenn keine elektromagnetischen Störungen zu erwarten sind. (Auszug aus dem EMVG vom 9.Nov.92, Para.3, Abs.4) Hinweis: Dieses Genehmigungsverfahren ist von der Deutschen Bundespost noch nicht veröffentlict worden.

Chapter

Table Of Contents

1 Maintenance Overview ....................................... 17
Printronix P7000 Printers..................................................................... 17 Order The Correct Spares............................................................. 18 How To Identify A P7000 Printer ................................................... 18 H-Series Printers ........................................................................... 20 Zero Tear Pedestal (ZTP) Printers ................................................ 20 Printer Configuration Code............................................................ 20 Forms Handling ............................................................................. 21 Important Maintenance Notes.............................................................. 22 Notices .......................................................................................... 22 About This Manual............................................................................... 23 How To Use This Manual .............................................................. 24 Safety Notices...................................................................................... 25 Hinweise zur Sicherheit ....................................................................... 25 Controls And Indicators ....................................................................... 26 Electrical Controls ......................................................................... 26 Mechanical Controls...................................................................... 28 Tools And Test Equipment .................................................................. 30 Plugging In The Printer ........................................................................ 31 Printronix Customer Support Center.................................................... 31 Printronix Supplies Department..................................................... 32 Maintenance Training For Printronix Products .................................... 32

2 Preventive Maintenance ..................................... 33
Cleaning The Printer............................................................................ 33 Cleaning The Outside Surfaces........................................................... 33 Cleaning The Shuttle Frame Assembly ............................................... 35 Cleaning The Card Cage Fan Assembly ............................................. 36

3 Troubleshooting.................................................. 37
Introduction .......................................................................................... 37 Troubleshooting Aids ........................................................................... 37 Start Here... ......................................................................................... 38 Troubleshooting Display Messages..................................................... 39 List Of Messages .......................................................................... 39 Troubleshooting Other Symptoms ..................................................... 107

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Table of Contents

General Symptom List................................................................. 108 Communications Failures .................................................................. 132 Diagnostic Printer Tests..................................................................... 134 Selecting And Running Diagnostic Printer Tests ........................ 135 Boot Diagnostics Menu...................................................................... 140 Factory Menu..................................................................................... 143 Hex Code Printout ............................................................................. 146 How To Print A Hex Dump .......................................................... 147 ASCII Character Set .......................................................................... 149 Soft vs. Hard Reset............................................................................ 150 The Power On Sequence .................................................................. 151 Controller Board Handshake Sequences .................................... 152 DC Software Initialization And Power Up .................................... 155

4 Adjustments and Tests ..................................... 157
Introduction ........................................................................................ 157 Adjustments and Tests................................................................ 157 Preparing The Printer For Maintenance ............................................ 158 Returning The Printer To Normal Operation...................................... 159 Belt, Paper Feed Timing, Adjustment ................................................ 160 Belt, Platen Open, Adjustment........................................................... 162 Paper Scale Alignment ...................................................................... 164 Platen Gap Adjustment...................................................................... 166 Ribbon Guide Alignment.................................................................... 168 Paper Out Adjustment ....................................................................... 170 Hammer Phasing Adjustment ............................................................ 173 Loading Flash Memory ...................................................................... 175 Loading Software With The Firmware Download Utility .............. 175 Loading Through Parallel Or Serial Port Using DOS .................. 177 Loading Software If Flash Contains Only Boot Code.................. 178 Loading Software Through The NIC ........................................... 180 Reprogramming the Security Key...................................................... 182 How To Reprogram The Security Key ........................................ 182 Coil Temperature Adjustment ............................................................ 184 Dynamic Paper Tension Adjustment ................................................. 185 Tractor Belt Tension Adjustment ....................................................... 187 Shuttle Electrical Short Check ........................................................... 188 Hammer Bank Power Cable Shorts Test........................................... 189 Cable Shorts Test .............................................................................. 190 Main Wire Harness Test Diagnostic .................................................. 192 Power Supply Operational Check...................................................... 193

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Table of Contents

5 Replacement Procedures And Illustrated Parts Lists...................................... 197
Organization Of This Chapter ............................................................ 197 Section I: Replacement Procedures .................................................. 198 List Of Removal / Installation Procedures ................................... 198 Belt, Paper Feed Timing ............................................................. 200 Belt, Platen Open ........................................................................ 201 Circuit Breaker ............................................................................ 202 Connector Coupling Shrouds ...................................................... 203 Control Panel Assembly .............................................................. 205 Controller Board .......................................................................... 206 Cover Assembly, Hammer Bank / Ribbon Mask ......................... 208 Cover Assembly, Shuttle ............................................................. 209 Cover Assembly, Top, Pedestal Models ..................................... 210 CT Board ..................................................................................... 211 Dashpot ....................................................................................... 212 Fan Assembly, Cabinet Exhaust ................................................. 213 Fan Assembly, Card Cage .......................................................... 214 Fan Assembly, Hammer Bank..................................................... 215 Hammer Spring Assembly........................................................... 216 Integrated Print Management Sensor ......................................... 218 Magnetic Pickup (MPU) Assembly .............................................. 219 Memory and Security Key ........................................................... 220 NIC (Network Interface Card) Assembly ..................................... 222 Paper Feed Motor ....................................................................... 223 Paper Ironer ................................................................................ 224 Paper Path .................................................................................. 225 Platen .......................................................................................... 226 Platen Open Motor ...................................................................... 230 Platen Stop Assembly ................................................................. 232 Power Supply Board ................................................................... 233 Resistors, Terminating ................................................................ 234 Ribbon Drive Motor ..................................................................... 236 Ribbon Guide Assembly (L/R)..................................................... 237 Shaft, Splined .............................................................................. 238 Shaft, Support ............................................................................. 240 Shuttle Frame Assembly ............................................................. 241 Spring, Extension, Hammer Bank ............................................... 243 Static Brush, Pedestal Printer ..................................................... 244 Switch Assembly, Paper Detector ............................................... 246 Switch Assembly, Platen Interlock .............................................. 247

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Table of Contents

Tractor (L/R) ................................................................................ 248 Section II: Illustrated Parts Lists ........................................................ 249 Illustrations of Printer Components ............................................. 249

6 Principles Of Operation..................................... 291
Line Matrix Printing ............................................................................ 291 Printing Rates .................................................................................... 294 Printing Mechanism ........................................................................... 294 Shuttle Frame Assembly.................................................................... 295 Hammer Bank Assembly............................................................. 295 Shuttle Drive Motor ..................................................................... 295 Paper Transport System.................................................................... 297 Ribbon Transport System .................................................................. 298 Integrated Print Management System ............................................... 299 Operation .................................................................................... 299 The Ribbon Log........................................................................... 302 Logical Control Of The Printer ........................................................... 303 Control Panel ..................................................................................... 304 Controller Board................................................................................. 305 Data Controller ............................................................................ 307 Engine Controller ........................................................................ 309 Power Supply Board .......................................................................... 311 AC Power .................................................................................... 311 DC Power .................................................................................... 311 Printer Interface ................................................................................. 312 Graphics ............................................................................................ 312

A Wire Data ......................................................... 313 B Abbreviations.................................................... 359 C Metric Conversion Tables ................................ 367 D SureStakTM Power Stacker .............................. 369
Contents ............................................................................................ 369 Introduction ........................................................................................ 370 Stacker Operation.............................................................................. 370 Stacker Problems .............................................................................. 375 Stacker First Inspection............................................................... 375 Stacker Confidence Check.......................................................... 376 Stacker Motor Check................................................................... 377 Removing The Power Stacker ........................................................... 380 Installing The Power Stacker ............................................................. 386

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Table of Contents

Replacing The Constant Force Spring............................................... 397 Replacing The Timing Belts............................................................... 399 Replacing The Roller Drive Shaft ...................................................... 402 Illustrated Parts Breakdown............................................................... 405 List of Illustrations ....................................................................... 405

E Zero Tear Pedestal (ZTP) ................................ 417
Contents ............................................................................................ 417 Overview............................................................................................ 417 Performance Limitations .................................................................... 417 Control Panel Menus ......................................................................... 419 Operation ........................................................................................... 420 Adjust The Paper Guides ............................................................ 420 Load Paper.................................................................................. 421 Set The Tear Bar Distance.......................................................... 422 Set The Top Of Form .................................................................. 423 Position The Paper Out Sensor .................................................. 424 Illustrated Parts Lists ......................................................................... 425 Illustrations of ZTP Printer Components ..................................... 425

F Paper Specifications And Forms Design.......... 441
Introduction ........................................................................................ 441 General Paper Specifications ............................................................ 442 Paper Guidelines ............................................................................... 443 Terms And Definitions ................................................................. 443 Environmental Considerations .................................................... 445 Form Types ................................................................................. 445 Form Weight................................................................................ 445 Form Thickness........................................................................... 445 Form Evenness ........................................................................... 445 Tractor Pin Engagement ............................................................. 445 Methods Of Forms Attachment ................................................... 446 Chaff Content .............................................................................. 447 Form Design Checklist....................................................................... 448 Summary ........................................................................................... 451 Storage And Handling ................................................................. 451

G Maintenance Manuals For P5000 Printers ...... 453

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Table of Contents

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Maintenance Overview

Printronix P7000 Printers
P7000 printers are the latest Printronix line matrix printers to feature PSA3TM (Printronix System Architecture, third generation). This innovative printer architecture puts all data and printer control electronics on the PSA3 controller board. Up to 32 MB of flash memory on this board permits rapid access to stored printer control languages (emulations) and very fast processing of print data. A variable-speed shuttle and micro-step paper feed control enable P7000 printers to print a wide range of horizontal and vertical dot densities, making these printers ideal for high-volume print jobs. The controller board, card cage, and some parts of the ribbon drive system in P7000 printers are new designs and are not electrically or mechanically compatible with earlier Printronix line matrix printers. (For maintenance information about earlier Printronix printers, see page 453.) The principal differences among the various P7000 models are the number of hammers on the hammer bank, whether the printer is mounted on a pedestal or housed in a floor cabinet, and the maximum possible print speed. In this manual, all items described apply to all models except where noted. (See Table 1 on page 19.) Although technically sophisticated, a P7000 printer is easy to use. The mechanical controls that the operator can adjust are colored blue for quick identification. The operator can select every printer function either at the printer control panel or by sending control codes to the printer in the data stream from the host computer. For added security--and to protect special printer configurations--the operator can program which key combination locks and unlocks the ENTER key on the control panel.

Optional Features Enhance Graphics
The PGL and VGL Printronix emulations, bundled together as IGP , are easy to use but highly versatile graphics programming languages that load into the printer's memory and simplify the creation of graphic images. The PSA3 architecture enables multiple emulations and graphic options to be run without additional graphic processors or protocol converters. Depending upon the model, various types of paper stacker are available to handle any throughput requirements. (See "Forms Handling" on page 21.)

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Printronix P7000 Printers

Order The Correct Spares
When you replace worn or damaged printer components, make sure you order the correct spares for the model you are servicing. The next section shows you how to identify a P7000 printer.

How To Identify A P7000 Printer
A P7000 printer has a black or gray finish and the PSA3 logo on the printer cover. Every printer also has a model number, which is an alphanumeric code that identifies the printer type, its housing, and its maximum rated print speed. The model number and serial number of the printer are on the identification label next to the input/output ports at the rear of the printer. Figure 1 shows how to inpret a model number.

Housing Code: 0 = Pedestal 2 = Floor Cabinet Printronix Line Matrix Printer P7000 Printer

P7003H

H = H-Series printer ZT = Zero Tear Pedestal (option)

Speed Rating: 03 = 300 lines per minute (lpm) 05 = 500 lpm 06 = 600 lpm 08 = 800 lpm 10 = 1000 lpm 15 = 1500 lpm 20 = 2000 lpm

Figure 1. How to Interpret a Model Number

Table 1 lists the models in the P7000 series. Remember that the speeds listed are the highest attainable under controlled test conditions. The speed of printing for "real world" print jobs is affected by the interaction of many variables and varies from print job to print job. For more information, see "Printing Rates" on page 294.

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How To Identify A P7000 Printer

Table 1. P7000 Printers Model Number P7003H P7003HZT P7203H P7005 P7005ZT P7205 P7006H P7006HZT P7206H P7008H P7208H P7010 P7010ZT P7210 P7015 P7015ZT P7215 P7220 Maximum Print Speed 300 lpm 300 lpm 300 lpm 500 lpm 500 lpm 500 lpm 600 lpm 600 lpm 600 lpm 800 lpm 800 lpm 1000 lpm 1000 lpm 1000 lpm 1500 lpm 1500 lpm 1500 lpm 2000 lpm Enclosure Pedestal Zero Tear Pedestal Cabinet Pedestal Zero Tear Pedestal Cabinet Pedestal Zero Tear Pedestal Cabinet Pedestal Cabinet Pedestal Zero Tear Pedestal Cabinet Pedestal Zero Tear Pedestal Cabinet Cabinet Hammer Bank 60 Hammers 60 Hammers 60 Hammers 28 Hammers 28 Hammers 28 Hammers 102 Hammers 102 Hammers 102 Hammers 126 Hammers 126 Hammers 60 Hammers 60 Hammers 60 Hammers 102 Hammers 102 Hammers 102 Hammers 126 Hammers

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Printronix P7000 Printers

H-Series Printers
H-Series models print the ideogrammic symbols used in China, Hong Kong, South Korea, and Taiwan. (See Table 2.) These Kanji/Hanzi/Hangul printers are indicated by the letter H in the model number suffix. (See Figure 1 and Table 1.) H-Series printers have specially designed platens and unique shuttle assemblies which are not interchangeable with any other Printronix printers. Table 2. H-Series Character Sets Character Set GB BIG-5, with an additional 3000 Cantonese characters BIG-5 TCA DCI (1st and 2nd segments) DCI (3rd segment) CNS KSC 5601 Where Used China Hong Kong

Taiwan

South Korea

Zero Tear Pedestal (ZTP) Printers
Zero Tear Pedestal (ZTP) printers are pedestal models equipped with special hardware and software that permits them to print small jobs or single sheets without losing a sheet between print jobs. The printer automatically presents the current print line to a tear bar when it finishes printing and presents the perforation of the last form printed to the tear bar. When it receives more data from the host computer, the printer pulls the form down to the print station and resumes printing. ZTP printers are covered in Appendix E (see page 417).

Printer Configuration Code
Every printer also has a configuration code which specifies the printer's cabinet type, controller board revision level, V8 ASIC revision level, and MECA ASIC revision level. The configuration code is included in the configuration printout. Figure 2 shows how to interpret the printer's configuration code.
V8 ASIC Revision Level

Cabinet Type: F = Floor Cabinet P = Pedestal Model

FH05AF

MECA ASIC Revision Level Controller Board Revision Level. H = PSA3 board

Figure 2. How to Interpret the Printer's Configuration Code

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Forms Handling

Forms Handling
Pedestal Models
Pedestal models provide access to printed forms from the top cover with a tear-at-perforation edge for ejected forms or a paper exit at the rear of the top cover. Pedestal printers also have a wireform paper tray attached to the front of the pedestal and a wireform catch basket attached either to the back of the pedestal or to the back of the printer top cover.

Cabinet Models
Cabinet models can be equipped with four kinds of paper stacking device:

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The fixed paper fence is a wireform divider that separates the source paper stack from the printed output stack, and is used in combination with hanging chains that guide printed forms downward. For improved performance at higher print speeds, the chains are used with a moveable fence called the "passive paper stacker," which can be positioned to match the form's length. The front access paper stacker consists of a shelf that holds the input paper and a sliding tray that receives the printed forms. The sliding tray pulls forward, permitting the user to both load and unload paper from the front of the printer. This option is helpful in locations where access to the rear of the printer is limited or impossible. For more demanding applications, an optional power stacker is available. (The power stacker is covered in Appendix D on page 369.)

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These devices are summarized in Table 3.

Table 3. Paper Stackers Used On Cabinet Models Fixed Paper Fence Standard Not Used Not Used Not Used Passive Paper Stacker Option Standard Standard Standard Front Access Stacker Option Option Option Option Power Paper Stacker Option Option Option Option

Printer P7205 P7210 P7215 P7220

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Important Maintenance Notes

Important Maintenance Notes
To ensure the best performance of the printer, remember these maintenance principles when you service it. Failure to observe these guidelines can result in damage to the equipment:

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Do not adjust the platen gap unless 1) the original shuttle assembly or platen has been replaced with a new or rebuilt unit, or 2) you are instructed to do so in a troubleshooting procedure. Never bend or try to adjust ("tweak") the hammer springs. The hammer springs are precisely aligned and the hammer tips are delicate. Always handle hammer springs by the thick mounting base. Use only the ribbons specified in the User's Manual. Using ribbons not made by Printronix can lead to degraded print quality, expensive damage to the printer, and can void the owner's warranty. Never close the forms thickness lever (platen lever) too tightly. Closing the forms thickness lever too tightly can lead to smeared print, degraded print quality, paper jams, and damage to the platen and shuttle assembly.

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Notices
For your safety and to protect valuable equipment, always read and comply with all information highlighted under notices. The heading of a notice indicates the kind of information it contains, as explained below:

WARNING CAUTION IMPORTANT

Describes a condition that could hurt you. Describes a condition that could damage equipment. Information vital to proper operation and maintenance of the printer. NOTE: Tips for efficient operation, maintenance, and troubleshooting.

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About This Manual
This is a field service maintenance manual, intended for use by trained service personnel. It is designed so that you can quickly locate the maintenance information you need to restore the printer to operation. This manual does not explain how to install, operate, or configure the printer. For that information, refer to the Quick Setup Guide and the User's Manual. This manual does not explain how to program application software for operation with the printer. Programming information for the printer languages used by the printer is in the appropriate programmer's reference manual:

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Character Sets Reference Manual Information about and examples of the character sets available in Printronix line matrix printers. Network Interface Card User's Manual Information about network protocols, configuration, and network operation. Coax/Twinax Programmer's Reference Manual Defines host control codes and character sets for the optional coax/twinax emulation (CT). ANSI Programmer's Reference Manual Defines host control codes and character sets for the ANSI emulation. IPDS Twinax Emulation Programmer's Reference Manual An overview of Intelligent Printer Data StreamTM (IPDS) features, commands, and diagnostics. IGP /PGL Programmer's Reference Manual Describes the optional IGP Printronix emulation. The IGP Printronix emulation allows the user to create and store forms; generate logos, bar codes, and expanded characters; create other graphics, and merge graphics with alphanumeric data as a document is printed. IGP/VGL Programmer's Manual Describes the optional Code VTM Printronix emulation. The Code V Printronix emulation allows the user to create and store forms; generate logos, bar codes, and expanded characters; create other graphics, and merge graphics with alphanumeric data as a document is printed.

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LinePrinter Plus Programmer's Reference Manual Defines host control codes for the LinePrinter Plus emulations.

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About This Manual

How To Use This Manual
Taking a systematic approach to maintenance tasks will help you restore the printer to operation as quickly as possible: 1. Locate the procedure or information you need in the Table of Contents or Index. 2. Read the entire procedure before you do it. 3. Gather the parts and tools you will need. 4. Make sure you understand all notices before you start a task. (Notices are defined on page 22.)

Printing Conventions In This Manual
Control panel keys and indicators are highlighted in UPPERCASE BOLD PRINT. Example: Press the CANCEL key, then press the ON LINE / CLEAR key. Messages that appear on the LCD (Liquid Crystal Display) are set off by quotation marks (" "). Example: Press the ON LINE / CLEAR key. "OFF LINE" appears on the LCD. Control panel key combinations are indicated by the + (plus) symbol. Example: Press = + >. means press the key and the key at the same time.

IMPORTANT

The Safety Notices on page 25 apply at all times when you are working on a P7000 printer. Please read them now.

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Safety Notices
WARNING
Always disconnect the AC power cord from the printer or power source before performing any maintenance procedure. Failure to remove power could result in injury to persons or damage to equipment. If you must apply power during maintenance, you will be instructed to do so in the maintenance procedure. Always disconnect the AC power cord before cleaning the printer. To prevent injury from electric shock, wait at least one minute after shutting off power before removing the power supply circuit board. Wear a properly grounded static wrist strap when handling the power supply board. Handle the board by the sides. Do not touch components or flex the board during removal/installation. Over time, the upper edge of the paper ironer can become sharp. To avoid cutting yourself, handle the paper ironer on the sides. Hold the printer cover securely while disengaging the dashpot.

WARNING WARNING

WARNING WARNING

Hinweise zur Sicherheit
VORSICHT
Bevor Sie anfällige Wartungsarbeiten durchführen, müssen Sie zuerst immer das Netzkabel aus der Steckdose ziehen. Wird das Netzkabel nicht herausgezogen, können Verletzungen oder Geräteschäden entstehen. Falls die Wartungsarbeit Stromzufuhr erfordert, wird im Wartungsablauf darauf hingewiesen. Ziehen Sie das Netzkabel aus der Steckdose, bevor Sie den Drucker reinigen. Um Verletzungen durch Elektroschocks zu vermeiden, warten Sie mindestens eine Minute nach Stromausschaltung, bevor Sie die elektrische Schaltkarte entfernen. Bitte immer einen geerdeten, statischen Handgelenkriemen tragen, wenn Sie die elektrische Schaltkarte handhaben. Halten Sie die Karte nur an den seitlichen Auswurfshebeln. Während des Herausnehmens/Installierens dürfen die Komponenten der Karte nicht berührt oder gebogen werden. Die obere Kante der Papierschiene wird mit der Zeit scharf. Halten Sie die Schiene deshalb an den Seiten, damit Sie sich nicht schneiden. Behalten Sie die Druckerabdeckung sicher im Griff, wenn Sie das Gasfederpaket entfernen.

VORSICHT VORSICHT

VORSICHT VORSICHT

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Controls And Indicators

Controls And Indicators
Electrical Controls
Switch or Indicator
Power Switch Status Indicator

Function
Turns printer on and off: 1 = on, 0 = off. This switch is also a circuit breaker. On when the printer is online, off when the printer is offline. Flashes to indicate a fault or warning. Liquid Crystal Display. Displays printer status messages, fault messages, and menus which permit user to set various configurations. Toggles the printer online and offline. Clears the printer after a fault is corrected and returns the printer to offline state. Pressing CLEAR silences the audible alarm (if enabled). Prints any data in the buffer then moves paper to the next Top Of Form as defined by the currently active form length. Cabinet: moves last data printed to the tractor area for viewing. "Printer in View" displays. Press UP or DOWN key to move paper vertically in 1/72 inch increments. (Refer to the Up and Down key functions.) Press VIEW/EJECT again to move the paper back to the adjusted print position. Pedestal: moves bottom of last printed form to the tear bar position. "READY TO TEAR/ EJECT TO RETURN" displays. Press UP or DOWN key to move the paper vertically in 1/72 inch increments. (Refer to the Up and Down key functions.) Press VIEW/EJECT again to move the paper to the top of the next available form. Clears all data from the print buffer (if enabled in the MAINT/MISC menu). Displays next higher level of a configuration menu. In VIEW mode, moves paper up 1/72 inch. (See VIEW / EJECT key.) Displays next lower level of a configuration menu. In VIEW mode, moves paper down 1/72 inch. (See VIEW / EJECT key.) Displays the next option in a configuration menu. Displays the previous option in a configuration menu.

Active Online

Active Offline

LCD

ON LINE / CLEAR PAPER ADVANCE VIEW / EJECT

CANCEL

SET TOF

Moves paper downward from TOF (Top Of Form) alignment mark to the print station and sets this as the first line of print on a page, independent of forms length. If there are data in the buffers, the printer slews to the page position where printing left off and prints the data. Prints the current printer configuration. Allows selection of the active configuration or print mode (typeface) of the printer. The functionality of this key depends on the current setting of the "Job Select/Print Mode" under the "MAINT/MISC" menu. (Refer to the User's Manual.) Enters an option displayed on the LCD into the printer's non-volatile memory. Starts and stops printer tests, sets a value, or prints the configuration. This key is locked and unlocked by a user-selectable key combination. (Refer to the User's Manual.) When pressed in offline state, if data are in the printer buffer the printer goes online, prints one page, then returns to offline. Can be repeated until the end of a print job. Only one page prints each time you press + ON LINE. If no data are in the printer buffer, the printer is placed in online mode. (This key combination does not work if the printer is in the fault state.) Resets the printer by reloading the power-up configuration and resetting the internal state.

PRT CONFIG JOB SELECT

ENTER

+ ON LINE

(IPDS emulation only)

< ;

+

26

=

=

Electrical Controls

A

Rotated 180 Degrees

B

C
A

C B

(Off)

(On)

A

Power Switch

Arrow Keys

LCD

Status Indicator

B
SET TOF PRT CONFIG JOB SELECT ENTER VIEW/ ON LINE/ PAPER CLEAR ADVANCE EJECT CANCEL

Figure 3. Electrical Controls

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Controls And Indicators

Mechanical Controls

Control or Indicator Paper Supports Forms Thickness Lever

Function Help prevent paper jams by supporting inner sections of paper. They are positioned manually by sliding them along the shafts. Sets the platen for paper and forms of different thicknesses. This lever must be fully opened (raised) to load paper, unload paper, and move paper with the vertical position knob. Indicates the relative thickness of forms and paper. Align pointer with A for thin (single-part) forms, B for thicker forms, and so on. The forms thickness lever closes the platen to the relative thickness of the paper. The platen stop returns the platen to the lever adjustment made by the user. Hold and feed paper. Used to set side margins and position the paper horizontally. Lock tractors in position. Used to set top of form or the first line to be printed. Open the forms thickness lever and rotate this knob to move paper vertically. Instructions showing how to load the ribbon correctly. A horizontal scale graduated in tenths of an inch, useful for setting paper margins and counting text columns. (See below.)
1 inch

Forms Thickness Pointer and Scale Forms Thickness Lever and Platen Stop Tractors (2) Tractor Locks (2) Vertical Position Knob Ribbon Loading Path Diagram Paper Scale

1

10

20

0.1 inch

Column Number

28

Paper Supports Right Tractor Left Tractor Tractor Lock Tractor Lock Vertical Position Knob Forms Thickness Lever and Scale

Platen Stop Assembly Ribbon Loading Path Diagram

Figure 4. Mechanical Controls

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Tools And Test Equipment

Tools And Test Equipment
For field level maintenance of the printer, you will need these tools: Alcohol, anhydrous Allen Wrench, 1/16 inch Allen Wrench, 3/32 inch Allen Wrench, 5/32 inch Allen Wrench, 7/64 inch Allen Wrench, 5/64 inch ESD Wrist Strap Feeler Gauge, Flat, 0.010 inch Feeler Gauge, Flat, 0.011 inch Feeler Gauge, Flat, 0.012 inch Feeler Gauge, Flat, 0.013 inch Feeler Gauge, Flat, 0.040 inch Field Kit, Tester, P5 Power Supplies, Generic, (P/N 178083-001) Force Gauge, "Fish Scale" type, 0-16 oz. Hardware Kit, P5XXX Mech, ZTP (P/N 178573-001) Hex bit, 3/16 in., torque screwdriver Hex bit, 3/32 in., torque screwdriver Hex bit, 5/32 in., torque screwdriver Hex bit, 5/64 in., torque screwdriver Lubricant, Bearing (Printronix P/N 101805-001) Nut Driver, 1/4 inch Nut Driver, 5/16 inch Nut Driver or Open End Wrench, 7/32 inch Open End Wrench, 5/16 inch Pliers, Grip Ring, External Screwdriver, flat tip Screwdriver, Phillips, #1 Screwdriver, Phillips, #2 Screwdriver, Torque, Utica TS-35 Tie Wraps, 4 inch and 8 inch Torx T-10, T-15 Driver Force Gauge, (Chatillon NY, Gauge-r, 0-20 lb., CAT 719-20)

30

®

Adapter, 1/4 in. hex to 1/4 in. square, Utica

HW-18

TM

®

Plugging In The Printer
In compliance with international safety standards, a P7000 printer is equipped with a three-pronged electrical plug on the power cord. When this power cord is plugged into a correctly wired AC power outlet, the ground conductor ensures that the printer chassis is at ground (earth) electrical potential.

WARNING

Failure to properly ground the printer can result in electrical shock to the operator. Never use adapter plugs that have no grounding prong. Never remove the grounding prong from the power cable plug. If an extension cord is required, make sure it is a three-wire cable with a properly grounded plug.

Printronix Customer Support Center
The Printronix Customer Support Center offers technical support with:

· · · · · IMPORTANT

Installation Configuration and setup Loading supplies and operating the printer Specifications of the proper ribbons, forms, and paper Answers to post-sale service support questions

Please have the following information available before you call the Printronix Customer Support Center:

· · · · · · ·

Model number of the printer Serial number (located on the back of the printer) Installed options (i.e., interface and host type if applicable to the problem) Configuration printout (Press PRT CONFIG on the control panel, then press ENTER) Is the problem with a new installation or an existing printer? Description of the problem (be specific) Good and bad samples that clearly show the problem (faxing of these samples may be required) (714) 368-2686 (31) 24 6489 410 (65) 6548 4114

Americas Europe, Middle East, and Africa Asia Pacific

http://www.printronix.com/public/servicessupport/default.aspx

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Maintenance Training For Printronix Products

Printronix Supplies Department
Contact the Printronix Supplies Department for genuine Printronix supplies. Americas Europe, Middle East, and Africa Asia Pacific (800) 733-1900 (33) 1 46 25 1900 (65) 6548 4116 or (65) 6548 4182

http://www.printronix.com/public/supplies/default.aspx

Maintenance Training For Printronix Products
Printronix offers Product Maintenance Training Classes designed to enhance the knowledge of service personnel. Taught by experienced professional instructors, these classes include:

· · · ·

Theory of operation Hands-on work with the products Diagnosis of equipment failures Preventive and corrective maintenance requirements and procedures

Customized classes designed to meet specific needs are also available upon request. Call Customer Training at (714) 368-2332 or visit the Printronix web page at www.printronix.com.

32

2

Preventive Maintenance

Cleaning The Printer
The printer is designed to require very little maintenance. Aside from normal replenishment of paper and ribbons, the only preventive maintenance necessary is periodic cleaning. Periodic cleaning, especially of the ribbon guides and ribbon path, contributes to increased printer life and reliability, and helps sustain superior print quality. Because operating conditions vary so widely, the user must determine how often to clean the printer. But, since there is no guarantee that the user will clean the printer regularly, you should clean the printer every time you are called to service it. NOTE: A cabinet model printer is illustrated in this chapter, but the cleaning procedures presented here pertain to all models.

WARNING CAUTION

Always disconnect the AC power cord before cleaning the printer. Do not use abrasive cleaners, particularly on the window. Do not drip water into the printer. Damage to the equipment will result. Do not spray directly onto the printer when using spray solutions. Spray a cloth, then apply the dampened cloth to the printer. Do not vacuum circuit boards.

Cleaning The Outside Surfaces
1. Set the printer power switch to O (Off). 2. Disconnect the AC power cord from the printer or the power source. 3. Remove the paper. 4. Remove the ribbon. 5. Dampen a clean, lint-free cloth with water and a mild detergent or window cleaning solution. Make the cloth damp, not wet. Wipe down the outside surfaces of the printer. 6. Dry the outside surfaces with a clean, lint-free cloth. 7. Open the printer cover. 8. Using a soft-bristled, non-metallic brush (such as a toothbrush), brush paper dust and ribbon lint off the tractors, shuttle cover assembly (air shroud), base casting, and ribbon guides. Vacuum up the residue. (Figure 5.) 9. Wipe the splined shaft with a soft cloth.

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Cleaning The Outside Surfaces

CAUTION

To avoid corrosion damage, use only alcohol when cleaning printer mechanical elements and make sure the cleaning solution contains no water. 10. Using a cloth dampened (not wet) with alcohol, clean the ribbon guides. 11. Vacuum up dust and residue from the lower cabinet. 12. Wipe the interior of the lower cabinet with a clean, lint-free cloth dampened with water and a mild detergent or window cleaning solution. 13. Dry the cabinet interior with a clean, lint-free cloth. 14. Clean the shuttle frame assembly, as described in the next section.

Tractors

Splined Shaft

Shuttle Cover Assembly (Air Shroud)

Base Casting

NOTE: A cabinet model is shown here, but the procedure is the same for pedestal models.

Forms Thickness Lever Ribbon Guide

Figure 5. Where to clean inside the cabinet or top cover.

34

Cleaning The Shuttle Frame Assembly
1. Remove the shuttle cover assembly (page 209). 2. Remove the shuttle frame assembly (page 241). 3. Remove the paper ironer(s) (page 224).

WARNING

Over time, the upper edge of the paper ironer can become sharp. To avoid cutting yourself, handle the paper ironer on the sides. 4. Moisten a clean, soft cloth with alcohol. Wipe the paper ironer(s) to remove lint, ink, and paper residue. 5. Install the paper ironer(s) (page 224). 6. Remove the hammer bank / ribbon mask cover assembly (page 208).

CAUTION

The ribbon mask is easily bent. When handling and cleaning the ribbon mask be careful not to crease or kink it. 7. Moisten a clean, soft cloth with alcohol. Wipe the hammer bank cover and ribbon mask to remove lint, ink, and paper residue. Clean the holes in the cover strips.

CAUTION

Do not use solvents or liquids to clean the hammer tips. Clean the hammer tips gently--too much pressure can chip them. 8. Using a stiff, non-metallic brush (such as a toothbrush), gently brush the hammer tips to remove lint and ink accumulations. (Figure 6.) Vacuum up any residue.

Hammer Tip

Figure 6. Cleaning the Hammer Tips

CAUTION

The hammer bank contains a strong magnet. To prevent damage to the hammer tips, do not let the hammer bank cover assembly snap into place as the hammer bank magnet attracts it. Any impact of the cover against the hammer bank can break hammer tips. 9. Install the hammer bank / ribbon mask cover assembly (page 208). 10. Install the shuttle frame assembly (page 241). 11. Install the shuttle cover assembly (page 209). 12. Clean the card cage fan assembly, as described in the next section.

35

Chapter

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Cleaning The Card Cage Fan Assembly

Cleaning The Card Cage Fan Assembly
1. Cabinet Models: Remove the paper path (page 225). Pedestal Models: Remove the top cover assembly (page 210). 2. Vacuum the card cage fan assembly and surrounding areas to remove paper particles, dust, and lint. (Figure 7.) 3. Install the ribbon. 4. Cabinet Models: Install the paper path (page 225) Pedestal Models: Install the top cover assembly (page 210). 5. Return the printer to normal operation (page 159).

NOTE: A cabinet model is shown here, but the procedure is the same for pedestal models.

Card Cage Fan

Figure 7. Cleaning the Card Cage Fan Assembly

36

3
Introduction

Troubleshooting

This chapter lists fault messages and general symptoms, and provides procedures for troubleshooting printer malfunctions. NOTE: Because you must operate the printer to check its performance and sometimes you may have to reconfigure it, always have the User's Manual handy when you troubleshoot. This manual does not cover printer operation or configuration.

Troubleshooting Aids
Troubleshooting is faster and more effective if you understand the equipment and make use of all available tools. This manual has a number of troubleshooting aids to help you isolate printer malfunctions:

· · · · · · · · · · · · ·

"Start Here" Logic Tree ............................................................... page 38 Troubleshooting Display Messages............................................ page 39 Message List............................................................................... page 39 Troubleshooting Other Symptoms ............................................ page 107 General Symptom List .............................................................. page 108 Communications Failures ......................................................... page 132 Diagnostic Printer Tests............................................................ page 134 Boot Diagnostics Menu............................................................. page 140 Factory Menu............................................................................ page 143 Hex Code Printout .................................................................... page 146 ASCII Character Set ................................................................. page 149 The Power On Sequence ......................................................... page 151 Appendix A: Wire Data ............................................................. page 313

37

Chapter

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Start Here...

Start Here...
Are you here because of an error message? YES NO Power on the printer and observe the control panel for the following sequence of events (retry as required): 1. All black squares appear on the display. 2. Display goes blank. 3. The following messages YES appear on the display, in this order: B00 STATUS: SDRAM DETECTION 33MHZ B01 STATUS: 8245 SDRAM TEST 32MB B51 STATUS: XX% LOADING B30: STATUS INITIALIZING... Power on the printer. Did steps 1, 2, and 3 occur? NO Did the fans come on after YES 10 seconds? NO Press ON LINE. Press PRT CONFIG. Press ENTER. YES Does machine configuration print? NO The Control Panel is not functioning (Table 5 page 108) --OR-- Printer does not initialize, page 114. Go to Troubleshooting Display Messages, page 39.

After about 10 seconds did YES the fans come on? NO

Did the status indicator lamp come on and ONLINE appear on the display? (If YES default is OFFLINE, status indicator will not come on.) NO

Printer initialized successfully. Other symptoms are listed in Table 5 page 108.

Go to Printer does not initialize, page 114.

Go to the Control Panel section of Table 5 page 108.

Did ANY of steps 1 thru 3 YES occur? NO Go to No power, and control panel is blank, and card cage fan is not running, page 113.

Are there black squares on the YES control panel? NO

Go to Black squares on control panel display, page 111.

Go to Printer does not initialize, page 114.

38

List Of Messages

Troubleshooting Display Messages
WARNING
Always disconnect the AC power cord from the printer before doing a maintenance procedure. Failure to do so could result in injury to you or damage to equipment. If you must apply power during maintenance, you will be instructed to do so in the maintenance procedure. Three kinds of messages appear on the Liquid Crystal Display (LCD):

· · ·

Status messages Configuration menus with associated options Fault messages

Most fault messages are cleared from the LCD by correcting the fault condition then pressing the CLEAR key. Some fault messages can only be cleared by shutting down and restarting the printer. These fault messages are indicated by an asterisk (*) after the message. If printer logic circuits detect a fault condition, three things happen:

· · ·

The status indicator on the control panel flashes on and off. The audible alarm beeps if it is enabled. (Press CLEAR to silence the alarm.) The control panel LCD displays a fault message.

List Of Messages
Find the message in the Message List below and follow the suggested procedure. After correcting an error, press the CLEAR key to clear the message and place the printer in the offline state. If an error is not cleared, the printer will try to print again but will display the error message until the error is cleared. Table 4. Message List Message
06 HOST REQUEST

Explanation Status message: in the CT emulation, the host computer or printer controller requires attention. Status message: in the CT emulation, the printer was offline more than 10 minutes and the "Intervention Required" parameter is set to "Send to Host."

Solution Not a printer problem.

08 HOLD PRINT TIMEOUT

Press ON LINE.

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Chapter

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Troubleshooting Display Messages

Table 4. Message List Message
8.5V POWER FAIL *

Explanation 8.5 Volt Power Failed. Internal power failure.

Solution 1. Cycle power. If the message appears, do the power supply operational check (page 193). If the power supply fails the check, replace it. If it passes the check, go to the next step. 2. Power on the printer. If the message appears, replace the controller board. Record the message and return it with the defective board. 3. Power on the printer. If the message appears, replace the shuttle frame assembly.

15 COMM CHECK

Communication Check: a message that appears in the CT emulation meaning the line is not active on a twinax interface.

1. Power off the printer. Reseat the twinax host data cable connection and twinax I/O cable connection at the CT board. 2. Disconnect the twinax autotermination cable from the printer. Test the cable for the resistances shown in Appendix A. If the resistances are incorrect, replace the twinax auto-termination cable. 3. Power on the printer. Send a print job to the printer. Verify that all other devices on the twinax line are working properly. (Refer to line problem determination procedures, as recommended by the host system.) 4. If the message is gone, the host has reestablished communication with the printer. If all other twinax devices work properly and the message still appears, replace the CT board. Record the message and return it with the defective board.

40

List Of Messages

Table 4. Message List Message
15V CTL FAIL*

Explanation Controller Voltage Failure.

Solution 1. Cycle Power. Run the print job again. If the message appears, remove the hammer bank logic cable, inspect it for damage, and test it for continuity. (See Appendix A.) Replace the hammer bank logic cable if it is damaged or fails the continuity test. 2. Cycle Power. Run the print job again. If the message appears, download the emulation software again (page 175). 3. Cycle power. Run the print job again. If the message appears, replace the flash memory. 4. Power on the printer. Run the print job again. If the message appears, replace the controller board. Record the message and return it with the defective board. 5. Check the resistance of connectors P106/LRIB M and P107/RRIB M. (Refer to the Main Wire Harness Test Tables in Appendix A.) If ribbon motor resistance is not correct, replace the motor and/or the intermediate cable, if installed. 6. Power on the printer. Run the print job again. If the message appears, do the power supply operational check (page 193). If the power supply fails the check, replace it. If it passes the check, go to the next step. 7. Power on the printer. If the message appears, replace the shuttle frame assembly.

22 INVALID ADDR

Invalid Address: poll timeout on the twinax interface indicating the unit address is not recognized by printer.

Have the system administrator make sure the printer address is correct.

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Chapter

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Troubleshooting Display Messages

Table 4. Message List Message
23.5V CTL FAIL*

Explanation 23.5 Volt Controller Failed: a voltage failure on the controller board.

Solution 1. Cycle Power. Run the print job again. If the message appears, download the emulation software again (page 175). 2. Cycle power. Run the print job again. If the message appears, replace the flash memory. 3. Power on the printer. Run the print job again. If the message appears, replace the controller board. Record the message and return it with the defective board. 4. Power on the printer. Run the print job again. If the message appears, do the power supply operational check (page 193). If the power supply fails the check, replace it. If it passes the check, go to the next step. 5. Power on the printer. If the message appears, replace the shuttle frame assembly.

31 PAPER OUT TIMEOUT

In t