Texas Instruments OMNi810 User manual

OMNi 800
electronic data terminals
MAINTENANCE MANUAL FOR
MODEL 810 PRINTER
MANUAL NO. 994386-9701 Rev. B
Revised 1 June 1978
TEXAS INSTRUMENTS
INCORPORATED

Copyright 1978 by Texas Instruments Incorporated
All Rights Reserved - Printed In USA
The information and/or drawings set forth in this document and all rights in and to
inventions disclosed herein and patents which might be granted thereon disclosing or
employing the materials, methods, techniques or apparatus described herein are the
exclusive property of Texas Instruments incorporated.
No copies of the information or drawings shall be made without the prior consent of
Texas Instruments Incorporated.
r----------------------.. INSERT LATEST CHANGED PAGES.DESTROY SUPERSEDED PAGES
LIST 0 F EFFE CT IV EPA GES INote: The portIon of the text affected by the changes is indicated by a vertical bar
In the outer margins of the page.
Maintenance Manual for Model 810 Printer
Manual No. 994386-9701
Original Issue: 15 July 1977
Revision
A: 15 March 1978 ECN 432918
T otdl nurnher of pages In this publication is 342 consisting of the following:
Page
Change
Page
Change
No. No.
No. No.
Cover 0
A-I-A-8 0
A 0 B-I-B-2 0
iii-xii 0
C-I-C-6
0
1-1-1-4 0
D-I-D-22 0
2-1--2-8 0
E-I-E-18 0
3-1-3-2
0
F-I-F-27
0
4-1-4-54 0 Index
-1- Index·8 0
5-1-5-25 0 User Response Sheet 0
6-1-6-134 0 Business Reply 0
7-1-7-37 0 Cover Blank 0
Cover 0
CHANGE NOTICES
I
Revision ECN
Page
No.
Letter
Date
Number Level
Description
A 3/15/78 432918 D Update drawings, add preventive
maintenance information
B 6/1/78
432332
D Correct errors; add Line Buffer Option Drawings and
Installation Instructions.
A
Change
No.

PREFACE
This manual provides operation, installation,'and maintenance information for the Model81 0 Printer
manufactured by Texas Instruments Incorporated. The manual is organized into the following
sections:
Section I - describes
the standard features of the Model 810 and lists specifications and available
options and accessories.
Section II -presents installation instructions, including unpacking, interface cabling,
and initial
preparation and testing.
Section III -provides descriptions of the control panels and indicators, operating instructions, self-
help procedures, interface
information, and software commands.
Section IV -explains principles
and theory of operation of the mechanism and electronics.
Section V - describes maintenance, including troubleshooting, assembly removal
and replacement,
and preventive maintenance.
Section VI -contains assembly drawings
and associated parts lists.
Section VII -presents logic diagrams
and electrical schematics.
iii

Various options available for the Model810 Printerare identified throughoutthis manualby a three-
letter configuration code. The options installed in your printer can be determined from the
configurationlabel
on theunderside of the access door. We suggestyoucopythis informationontothe
figure for ready reference to the user
of this manual. The code is defined in the table below.
CONFIGURATION
PRINTER
INTERFACE
CHARACTER
OPTION
SET
BSC
__
EIA
FUL __
UKF __
FLC __
TTY ___
UKL __ DNF __
VFC __
PLT
DNL __ SWF __
FCO __
LBE
SWL __ GRF __
VCO __
BRO __
GRL __
KAT __
DSC __
EXP __
KTS __
PROCESSOR IRC
___
OPTIONS
DNB __
NDE __
GDS __
NOTES:
DNB __
GED __
IRC __
LBP
LB __
DSC __
BRO __ GDS __
LBT
HDP __
BRO __
DSC __
GDS __
DEFINITIONS OF PRINTER CONFIGURATION CODE
BRa - Baud Rate Option
KAT -
Katakana & Full US ASCII
BSC -Basic KTS
Katakana plus Six Special Characters, Full
DNB - Data Terminal Not Busy US ASCII
DNF - Denmark/Norway Full ASCII LB Line
Buffer
DNL -
Denmark/Norway Limited ASCII LBE Line
Buffer bd, EIA IfF
DSC
Decode Carriage Return
LBP Line
Buffer bd, Par l/F
EIA
Serial Data
LBT Line Buffer
bd, TTY I/F
EXP
Expanded Domestic U.S. NDE -Non-Delete
Recognition
FCO
Forms Length & Compressed Print
PLT
Par Input TI-compatible
FLC
Forms Length Control
SWF
Sweden/Finland Full ASCII
FUL
Full ASCII Domestic U.S.
SWL
Sweden/Finland Ltd. ASCII
GDS
Gated Data Strobe
TTY
20 rnA Current Loop
GED -
Gated EIA Data
UKF -
United Kingdom Full ASCII
GRF -
Germany Full ASCII UKL -
United Kingdom Ltd. ASCII
GRL -
Germany Limited ASCII VCO -Vertical
Format Control and
HDP
Half Duplex Operation
Compressed Print
IRC
-Inverted/Reverse Channel
VFC -Vertical
Format Control
iv

TABLE OF CONTENTS
Paragraph Title Page
SECTION I. GENERAL DESCRIPTION
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-1
1.2 Description ............................................ 1-3
1.3 Configuration .... '. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-3
1.4 Modification Features ..................................... 1-3
1.5 Optional Features ........................................ 1-4
1.6 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-4
SECTION II. INSTALLATION
2.1 Introduction ............................................ 2-1
2.2 Space Requirements ...................................... 2-1
2.3 Unpacking and Setting Up .................................. 2-1
2.4 Cabling and Grounding Information ............................ 2-2
2.4.1 Serial Interface Cable
.................................... 2-3
2.4.2 Parallel Interface Cable ................................... 2-5
2.4.3 TTY Interface Cable ..................................... 2-5
2.5 Initial Preparation ........................................ 2-6
2.5.1 Line Voltage Selection
................................... 2-6
2.5.2 Supplies Installation
.................................. 2-7/2-8
2.5.3 Operational Checkout
................................. 2-7/2-8
SECTION III. OPERATION AND INTERFACE INFORMATION
3.1 Introduction ............................................ 3-1
3.2 Control Panel Controls and Indicators .......................... 3-2
3.2.1
Paper Out Indicator .............................. '....... 3-2
3.2.2
Error Indicator ........................................ 3-2
3.2.3
On Line Switch and Indicator ............................... 3-2
3.2.4
Reset/Tab Switch ...................................... 3-3
3.2.5 Form Align ./Tab Set Switch ............................. 3-3
3.2.6 Form Align'" /Tab Clear Switch ........................... 3-3
3.2.7 Form Feed/Set ,Top of Form Switch .......................... 3-3
3.2.8 Line Feed/Line Feed Switch ............................... 3-3
3.2.9 Power Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-3
3.3 Auxiliary Control Panel Controls and Indicators ..................... 3-3
3.3.1
Normal/Test/YFC Switch (BSC,FLC,VFC,FCO,YCO) .............. 3-5
3.3.2 Pencil Switches (BSC,FLC,YFC,FCO,YCO) ..................... 3-5
3.3.3 8 LPI Switch and Indicator (BSC,FLC,VFC) ..................... 3-5
3.3.4 Form Length Rotary Switch (FLC,FCO) ....................... 3-5
v

Paragraph
3.3.5
3.3.6
3.3.7
3.3.8
3.4
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.4.7
3.4.8
3.4.9
3.4.10
3.4.11
3.4.12
3.4.13
3.4.14
3.4.15
3.4.16
3.4.17
3.4.18
3.4.19
3.5
3.6
3.6.1
3.6.2
3.6.3
3.6.3.1
3.6.3.2
3.7
3.7.1
3.7.2
3.8
3.8.1
3.8.2
3.9
3.9.1
3.9.2
3.9.3
3.9.4
3.9.5 .
3.9.6
3.9.7
TABLE OF CONTENTS (Continued)
Title
Page·
VFC Switch (VFC,VCO) .................................. 3-5
Store/Recall Switch (VFC,VCO)
.............................. 3-5
16.5 CPI/8 LPI Switch and Indicators (FCO,VCO) ................ 3-5
Elapsed Time Indicator (Optional) ............................ 3-6
Operating Procedures . . . . . . . . . . . . . ~ . . . . . . . . . . . . . . . . . . . . . . .. 3-6
Ribbon Installation (All Printers) ............................ 3-6
Paper Loading (All Printers) ............................... 3-7
Turn-On Procedure (All Printers) ............................ 3-9
Top of Form Adjustment (All Printers) ....................... 3-10
Printhead Adjustment (All Printers) .......................... 3-11
Self-Test Diagnostic (All Printers) ............. 0 • • • • • • • • • • • •• 3-12
Lines Per Inch Spacing (All Printers) ......................... 3-12
Characters Per Inch Spacing (FCO, VCO) ..................... 3-13
Baud Rate/Parallel Input Selection (All Printers) ................. 3-13
Parity Selection (All Printers) .............................. 3-14
Automatic Line Feed Override (All Printers) .................... 3-14
Automatic Perforation Skip Override (All Printers) . . . . . . . . . . . . . . .. 3-14
Vertical Tab Setting (All Printers) ........................... 3-14
Vertical Tab Clearing (All Printers) .......................... 3-15
Fixed Form Length Selection (FCO, FLC) ..................... 3-15
Programming Form Length (FCO, FLC) ...................... 3-16
Storing Vertical Format (VFC, VFO) ......................... 3-16
Recalling Vertical Format (VFC, VFO) ....................... 3-17
Turn-Off Procedure (All Printers) ........................... 3-18
Self-Help Procedures ..................................... 3-18
Serial Interface ........................................ 0 3-19
Baud Rate .......................................... 3-20
Signal Levels and Terminations . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-20
Asynchronous Data Format ............................... 3-21
Timing ........................................... 3-21
Parity ............................................ 3-21
Parallel Interface (Optional) ................................ 3-21
Signal Levels and Terminations . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-23
Timing ............................................. 3-23
TTY Current Loop Interface (Optional) ......................... 3-23
Signal Levels and Terminations . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-23
Timing .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-25
Software (Remote Control) ................................. 3-25
Software Commands .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-25
Software Form Length Setting ............................. 3-25
Software Horizontal Tab Setting ............................ 3-29
Software Line Width Setting .............................. 3-29
Software Vertical Format Recall ......... -. . . . . . . . . . . . . . . . . .. 3-30
Software Vertical Format Store ............................ 3-30
Software Vertical Tab Setting 3-30
vi

Paragraph
4.1
4.2
4.2.1
4.2.1.1
4.2.1.2
4.2.1.3
4.2.1.4
4.2.1.5
4.2.2
4.2.3
4.2.4
4.2.4.1
4.2.4.2
4.2.5
4.2.6
4.2.7
4.3
4.3.1
4.3.2
4.3.2.1
4.3.2.2
4.3.2.3
4.3.2.4
4.3.2.5
4.3.3
4.3.3.1
4.3.3.2
4.3.3.3
4.3.4
4.3.4.1
4.3.4.2
4.3.4.3
4.3.4.4
4.3.4.5
4.3.4.6
4.3.4.7
4.3.4.8
4.3.5
4.3.5.1
4.3.5.2
4.3.5.3
TABLE OF CONTENTS (Continued)
Title Page
SECTION IV. THEORY OF OPERATION
General ............................................... 4-1
Principles of Operation .................................... 4-1
Dot Matrix Printing Mechanism ............................. 4-1
Printhead Assembly .................. . . . . . . . . . . . . . . . . .. 4-2
Carriage Drive
....................................... 4-2
Paper Drive ......................................... 4-3
Ribbon Drive ........................................ 4-4
Dot Matrix Printing Mechanics ............................ 4-4
Electronic
Control Subsystem ............................... 4-6
Firmware
Program Overview ............................... 4-8
Printhead/ Carriage Subsystem .............................. 4-8
Printhead Drive ...................................... 4-9
Carriage Drive ....................................... 4-9
Paper Feed Subsystem .................................. 4-11
Power Supply ........................................ 4-12
Fuses
.............................................. 4-14
Theory
of Operation ..................................... 4-14
Overview ........................................... 4-14
Processor Board
...................................... 4-16
Microprocessor System
................................ 4-16
Communications Interfaces
.............................. 4-18
FIFO Buffer ....................................... 4-18
Printhead Carriage Control .............................. 4-18
Software .......................................... 4-22
Driver Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 4-29
Printhead Driver Circuits ............................... 4-29
Carriage
Motor Driver Circuit ............................ 4-32
Paper Feed Motor Driver Circuits ......................... 4-36
Power Supply ........................................ 4-42
AC Power Module ................................... 4-43
+30 Vde Supply ..................................... 4-44
+5 Vde Regulator .................................... 4-44
+8 SW ........................................... 4-47
±12 Vdc
and -5 Vdc Regulators ........................... 4-48
-75 Vdc Supply ..................................... 4-49
Overvoltage Protection Circuit ............................ 4-49
Power Good/Reset ................................... 4-50
Current Loop Option Board ............................... 4-52
Receiver Circuit ..................................... 4-52
Transmitter Circuit .................................... 4-53
Auxiliary Parallel Interface '............................... 4-53
vii

TABLE OF CONTENTS (Continued)
Paragraph Title Page
SECTION V. MAINTENANCE
5.1 General ........................ 0 0 0 • 0 • 0 •• 0 • 0 0 0 0 • 0 •• 0 0 0 0 5:-1
5.2 Preventive Maintenance 0 0 0 0 • 0 • 0 0 0 0 0 0 0 •• 0 0 • 0 • 0 •• 0 0 0 0 0 0 0 0 •• o. 5-1
5.3 Troubleshooting 0 0 0 0 0 0 0 • 0 0 0 0 0 0 0 • 0 • 0 • 0 ••• 0 ••••• 0 • 0 0 • 0 0 0 • o. 5-1
5.4 Removal and Replacement . 0 • 0 0 •• 0 • 0 • 0 0 •• 0 • 0 • 0 ••••• 0 •• 0 0 0 0 o. 5-3
5.4.1 Printed Circuit Boards 0 0 0 • 0 •• 0 •• 0 •••• 0 •• 0 ••• 0 •• 0 •• 0 • 0 • 0 0 0 5-3
5.4.2 Battery (996351-0001) .... 0 0 • 0 0 0 0 0 • 0 0 0 • 0 ••••••• 0 ••••••• 0 •• 5-5
5.4.3 AC Power Module (994373-0001) Removal and Replacement
.......... 5-5
5.4.4 Motherboard (994330-0001)
............. 0 • • • • • • • • • • • • • • • • •• 5-7
5.4.5
Fan Assembly (996275) .......... 0 ••••••••••• 0 0 •• 0 • • • • • • •• 5-8
5.4.6 Printhead (994258)
.......... 0 ••••••• 0 • 0 •• 0 •• 0 • 0 0 0 0 0 • • • •• 5-9
5.4.7
Paper Drive Motor Assembly (994183) 0 ••• 0 •••• 0 0 0 0 0 0 0 0 •• 0 0 0 • 0 5-10
5.4.8 Paper Tractor (996158-0001, 0002) o. 0 0 • 0 •• 0 • 0 ••••••••• 0 • 0 0 0 0 0 5-11
5.4.9 Ribbon Drive Assembly (994215) 0" 0 • 0 0 •••• 0 0 • 0 0 • 0 •••• 0 0 0 • 0 5-13
5.4.10 Control Panel (994251) 0" 0 0 0 0 0 • 0 0 '0 • 0 0 • 0 •• 0 • 0 • 0 0 • 0 0 0 0 • 0 0 5-14
5.4.11 Auxiliary Control Panel Assembly (994257) . 0 0
•• 0 • 0 • 0 • 0 0 • 0 • 0 0 0 0 • 0 5-15
5.4.12 Carriage Drive
Motor Assembly (994238) 0.' 0 0 0 •• 0 • 0 • 0 0 •• 0 0 0 0 • 0 5-16
5.4.13 Wire Rope
.. 0 0 0 0 0 ••• 0 •••• 0 •• 0 • • • • • • • • • • • • • • • • • • • • • •• 5-18
5.4.14 Carriage and
Paper Drive Assembly (994183) ...... 0 •• " • • • • • • • • •• 5-20
5.4.15 Secondary Fuse 0 ••••••••••• 0 •• 0 ••••••••••• 0 • • • • • • • • • •• 5-21
5.4.16 Power Line Fuse ................................ 0 • 0 •• 0 5-22
5.5 Adjustments ....... 0 ••• 0 •••••••• 0 ••••••• 0 • • • • • • • • • • • • •• 5-24
5.5.1 Ribbon Guide ............ 0 ••• 0 •••• 0 •••••••••••• 0 • • • •• 5-24
5.6 Testing
............... 0 ••••• 0 •• 0 •••••••••••••• 0 •• 0 • •• 5-24
SECTION VI. ASSEMBLY DRAWINGS AND LISTS OF MATERIAL
SECTION VII. SCHEMATIC DIAGRAMS
APPENDIX A. CHARACTER SET DOT MATRIX
APPENDIX B. ASCII CONTROL AND CHARACTER CODE
APPENDIX C. MODEL 810 PRINTER VERSIONS,
OPTIONS, AND ACCESSORIES
APPENDIX D. TMS 8080A MICROPROCESSOR
APPENDIX E. TMS 5501 I/O CONTROLLER
APPENDIX F. INSTALLATION OF OPTIONAL KITS
ALPHABETICAL INDEX
viii

LIST OF ILLUSTRATIONS
Figure Title Page
I-I Model 810 Printer ........................................ I-I
2-1 Printer Dimensions ........•.............................. 2-1
2-2 Rear View of Printer .........•............................ 2-2
2-3 Ground Jumper Location ................................... 2-3
2-4 Cable Options _.. . . . . . . . . . . • . . . . . . . . . • . . . . . . . . • . . . . . . . . .. 2-4
2-5 Line Voltage Selection
..................................... 2-5
3-1 Control Locations ........................................ 3-1
3-2 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-2
3-3 Auxiliary Control Panels
................................... 3-4
3-4 Ribbon Installation
....................................... 3-6
3-5
Paper Loading .......................................... 3-8
3-6 Asynchronous Data Format ................................ 3-21
3-7 Parallel Interface Character Timing
........................... 3-24
4-1 Model 810 Printer Simplified Block Diagram ...................... 4-2
4-2 Model 810 Printer
Print head Assembly .......................... 4-3
4-3 Printing the Letter
"E" ..................................... 4-5
4-4 Electronic Control Subsystem Block Diagram
...................... 4-7
4-5 Printhead/Carriage Subsystem Block Diagram
........... ~ . . . . . . . .. 4-9
4-6 Carriage
Motor Shaft Encoder Phase Relationship for
Left-to-Right Carriage Motion
.....•....................... 4-10
4-7 Carriage Velocity Profiles Print Mode .......................... 4-11
4-8
Paper Drive System Block Diagram ........................... 4-12
4-9 Model 810 Printer Power Supply Block Diagram
.................. 4-13
4-10 Model 810 Printer Simplified Electronics Block Diagram ............. 4-15
4-11 Processor
PC Board, Detailed Block Diagram .................... 4-17
4-12
FIFO Memory Write Cycle, Timing Diagram ..................... 4-19
4-13 Carriage
Motor Shaft Encoder State Diagram .................... 4-20
4-14 Carriage Speed Control Counter Timing Diagram .................. 4-21
4-15 Forming the Character
"W" ................................ 4-22
4-
16 Printhead Solenoid Timing Diagram ........................... 4-23
4-17 Normal
Print Mode Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-24
4-18 Printer Subroutine
EI00 Accept States State Diagram ............... 4-26
4-19 Test Mode Flow
Chart .................................... 4-27
4-20 Printhead Carriage State Diagram .......... :................. 4-27
4-21 Driver Board Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 4-30
4-22 Printhead Solenoid Current Pulse Profile ........................ 4-31
4-23 Printhead Power Driver Simplified Schematic
.............. . . . . . .. 4-32
4-24 Printhead Carriage Driver Simplified Schematic
................... 4-33
ix

LIST OF ILLUSTRATIONS (Concluded)
Figure Title Page
4-25 Printhead Carriage Driver Circuit Forward Command ............... 4-34
4-26
Print head Carriage Motor Current Waveforms ................. 0 •• 4-35
4-27 Variable Reluctance,
Paper Feed Stepper Motor . 0 • 00 0 ; .• ' ••• 0 • oC 0 0 • •• 4-36
4-28 Stepper
Motor Drive Circuit Simplified Diagram ..... 0 ••• 0 0 •• 0 • 0 0 0 4-39
4-29
St~pper Motor Drive Circuit, Phase A 0 0 0 • 0 • 0 •••• " • 0 0 ••• 0 • • • • •• 4-40
4-30 Stepper
Motor Circuit Waveforms ... 0 ••• 0 0 • 0 ~ ••••••••••• ". • • •• 4-41
4-31 Paper Feed Stepper Motor Currents ................ 0 •••••••• 0 0 4-43
4~32 Stepper Motor Line Feed Cycle . 0 0 0 0 0 0 0 • 0 0 0 •• 0 0 0 • 0 •• 0 • 0 • 0 0 0 • 0 4-44
4-33 Power Supply Functional Block Diagram o. 0 • 0 0 0 • 0 0 0, 0 •••• 0 0 ••• 0 0 4-45
4-34 Power Transformer Primary
Tap Arrangements 0 0 • 0 • 0 0 • 0 0 •••• 0 0 •• 0 4-46
4-35 30 Vdc Supply
o. 0 0 • 0 ••• 0 0 0 0 •• 0 0 0 0 0 •• 0 0 • 0 0 0 0 • 0 •• 0 ..... 0 •• 4-46
4-36
+5 Vdc Regulator ... 0 0 0 • 0 0 0 0 • 0 0 • 0 0 0 • 0 0 0 0 • 0 0 0 0 • 0 0 0 0 ••• 0 • 0 4-47
4-37 +8 SW Line .. 0 0 •• 0 •• 0 • 0 0 0 0 0 • 0 • 0 0 0 0 0 0 • 0 •• 0'0 ••••• 0 • 0 0 0 •• 4-48
4-38 ±12 Vdc and
-5 Vdc Regulators .. 0 •• 00 0 0 0 0 • 0 • 0 • 0 • 0 0 0 ••••••• 0 •• 4-48
4-39
-75 Vdc Supply . 0 0 • 0 • 0 • 0 • 0 0 •• 0 0 0 0 • 0 •• 0 0 0 0 0 0 • 0 0 0 0 •• 0 • 0 •• 4-49
4-40 Overvoltage Protection Circuit 0 0 ••• 0 0 ... 0 • 0 • 0 • 0 • 0 0 0 •• 0 • 0 • 0 0 0 •• 4-50
4-41 Powergood/Reset Signal Profiles 0 ••• 0 •• 0 • 0 0 0 0 •• 0 0 • 0 • 0 • 0 • 0 • 0 •• 4-51
4-42 Powergood/Reset Circuit Block Diagram 0 0 • 0 0 0 • 0 ••• 0 • 0 ••• 0 • 0 0 0 • 0 4-51
5-1 Lubrication Points ............... 0 ••• 0 0 • 0 • • • • • • • • • • • • • • • • • 5-1
5-2 Electronics Cover Removal ................ 0 • 0 ••••••• 0 ••••••• 5-4
5-3 Battery Replacement . 0 • 0
•• 0 ••••• 0 0 •••• 0 0 0 0 0 0 0 •••••••• 0 ••• 0 5-5
5-4 AC Power Module 0
•••••• 0 0 ••• 0 •• 0 0 ••• 0 • 0 • 0 0 •• 0 •• 0 • 0 • 0 0 •• 5-6
5-5 Motherboard .... 0 ••• 0 • 0 •••••• 0 •• 0 ••• 0 • 0 0 ••• 0 0 •• 0 •••• 0 •• 5-7
5-6 Fan, Card Guide
and Bracket 0 0 ••• 0 0 •• 0 ••• 0 0 ••••• 0 •• 0 • 0 0 • 0 ••• 5-8
5-7 Printhead Being Removed 0 • • 0 0 • • • 0 0 0 • • • 0 • 0 0 • • 0 • • • • • 0 0 • • • 0 •
•• 5-9
5-8
Paper Drive Motor with Gear, Connector and Shaft
Removed . 0 • 0 • 0 • • • 0 • 0 0 0 0 • • 0 0 • 0 • 0 • 0 0 0 0 0 0 0 0 0 0 0 0 0 • 0 • • 0 0 5-10
5-9 Left Paper Advance Bearing 0 0 0 0 ••• 0 • 0 0 0 0 • 0 0 • 0 0 0 0 0 0 0 0 0 0 0 0 0 • 0 5-12
5-10 Paper Tractors Removal 0 0 0 0 • 0 0 •• 0 ••• 0 • 0 0 0 0 • 0 0 0 0 0 •• 0 • 0 0 0 0 • 0 5-12
5-11 Ribbon Drive Assembly 0 0 0 0 0 0 0 ••• 0 0 • 0 0 0 0 0 0 • 0 •• 0 •• 0 0 0 • 0 • 0 o. 5-13
5-12 Ribbon Drive Assembly Removal
o. 0 •• 0 • 0 • 0 0 0 •• 0 •••••• 0 0 • 0 • 0 o. 5-14
5-13 Control Panel Assembly 0 ••••• 0 • 0 •• 0 0 • 0 • 0 •• 0 0 ••• 0 • 0 • 0 • 0 • • •• 5-15
5-14 Auxiliary Control Panel 0
••• 0 ••• 0 • 0 0 0 •••••• 0 0 0 ••• 0 • 0 • • • • • •• 5-16
5-15 Carriage Drive
Motor . 0 ••••• 0 •• 0 0 0 0 0 • 0 0 0 0 •• 0 0 • 0 0 • 0 • 0 0 0 0 o. 5-17
5-16 Idler Pulley 0 0 0 0 0 0 0 0 0 0 0 0 • 0 ••• 0 0 0 • 0 • 0 0 0 0 •••• 0 0 0 ~ 0 0 0 0 0 • o. 5-18
5-17 Wire Rope Detail
o. 00 • • 0 0 • • 0 • 0 0 0 0 • • 0 0 • 0 0 0 0 0 • • 0 0 0 0 0 0 0 • 0 • 0 5-19
5-18 Carriage
and Paper Drive Assembly 0 0 0 •• 0 0 • 0 0 0 0 0 0 0 0 0 0 • 0 0 •••• o. 5-20
5-19 Paper-Out Switch 0 0 •• 0 0 • 0 •• 0 •• 0 0 0 0 0 • 0 0 0 0 0 0 0 0 0 0 •• 0 0 0 0 0 0 o. 5-21
5-20 Secondary Fuse Area 0 0 0 • 0 0 •••••• 0 0 • 0 0 0 0 • 0 0 • 0 0 0 0 ••• 0 • 0 • 0 0 0 5-22
5-21 Power Plug
at Rear of Printer . 0 0 0 0 0 0 • 0 0 0 •• 0 •••• 0 ••• 0 • 0 • 0 • o. 5-23
5-22 Test Barber Pole Printout 0 0 0 0 0 0 • 0 0 • 0 0 0 0 0 0 0 • 0 0 0
•• 0 0 0 0 ••••• o. 5-25
6-1 Model 810 Printer Major Assemblies .•... 0 0 0 -. 0 0 0 0 0 •• 0 0 0 0 •• 0 0 0 0 • 0 6-3
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