Oki ML590, ML591 Series free download

File name Okidata - ML590, ML591 Series Service Manual.pdf

Page: 1 Service Guide ML590/ML591 Chapter 0 About This Manual ML590 // ML591 Dot Matrix Printers Adobe Acrobat printable reference copy of the OKIDATA Service Training Manual. 09/17/97 Note: This Adobe Acrobat version of the Okidata Service Training Manual was built with the pictures rendered at 300 dpi, which is ideal for printing, but does not view on most displays well. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com) Table of Contents Page Service Guide ML590/ML591 0 About This Manual Front Cover Copyright Part Number & Manual Revision 1 Product Specifications 1.1 General Information 1.2 Physical Specifications 1.3 Power Requirements 1.4 Environmental Conditions 1.5 Agency Approvals 1.6 Operation Spec's - Print Speed and Character Matrix ...1.6.02 Characters Per Line ...1.6.03 Character Pitches ...1.6.04 Character Sets ...1.6.05 Printer Emulations 1.6.06 Fonts 1.6.07 Front Panel Switches 1.6.08 Graphics Resolution 1.6.09 Interface ...1.6.10 Line Feed Increments ...1.6.11 Line Feed Time 1.6.12 Menu Mode ...1.6.13 Paper Feed Methods ...1.6.14 Paper Feed Paths ...1.6.15 Paper Loading ...1.6.16 Paper Out Detection ...1.6.17 Paper Tear Capabilities ...1.6.18 Print Method ...Printhead Gap Information ...1.6.19 Print Modes ...1.6.20 Print Speed 1.7 Paper Specifications 1.8 Memory Specifications 1.9 Consumables 1.10 Options ...1.10.01 Cut Sheet Feeders ...1.10.02 Pull Tractor Kit ...1.10.03 Color Ribbon Kit ...1.10.04 Bottom Push Tractor Kit ...1.10.05 Serial Interface ...1.10.06 Roll Paper Stand ...1.10.07 Bitstream Facelift 2.0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Table of Contents ...1.10.08 OKISmart Typer Utility ...1.10.09 OKISmart Panel Utility 1.11 Reliability 2 Principles of Operation 2.1 Electrical Operation ...2.1.02 Main Control Board ...Block Diagram ...Program ROM ...RAM ...Character Generator ROM (CG ROM) ...Electrically Erasable Programmable ROM (EEPROM) ...LSI ...2.1.03 Initialization ...2.1.04 Parallel Interface Control ...2.1.05 Print Control ...LSI/Printhead Interface ...Gap Adjust Control ...Print Compensation Control ...2.1.06 Space and Line Feed (SP/LF) Motor Control ...Line Feed Motor Control ...Space Motor Control ...Encoder Disk ...2.1.07 Operation Panel ...2.1.08 Alarm Circuit ...Head Drive Time ...Print Speed ...Head Overheat Alarm Processing ...2.1.09 Power Supply Circuit 2.2 Mechanical Operation ...2.2.01 Printhead Mechanism ...Interconnect Diagram: Control Board to Printhead ...Line Feed Motor Resistance ...Space Motor Resistance ...Printhead Operation ...2.2.02 Spacing Mechanism ...2.2.03 Head Gap Mechanism ...2.2.04 Ribbon Drive Mechanism ...Color Ribbon Shift Mechanism