Oki OL840 free download

File name Okidata OL 840 Service Manual.pdf

Page: 1 Service Guide OL840 Chapter 0 About This Manual OL840 LED Page Printer 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 OL840 0 About This Manual Front Cover Copyright Manual Revision 1 Product Specifications 1.1 Overview 1.2 Product Specifications 1.3 Paper Specifications 1.4 Physical Specifications 1.5 Power Requirements 1.6 Environmental Conditions 1.7 Agency Approvals 2 Principles of Operation 2.1 Overview 2.2 Printer Overview ...2.2.02 Main Control Unit ...2.2.03 Main Controller Board (RPSS) ...2.2.04 Program ROM Board (RPSR) ...2.2.05 Connection Board (LNKZ) ...2.2.06 Expansion RAM Board (REXM) ...2.2.07 Font Card 2.3 Printer Control Unit ...2.3.02 Engine Driver Board (LLAB-2) ...2.3.03 Power Supply Unit ...2.3.04 Fuser Unit ...2.3.05 Main Motor (Drum Motor) ...2.3.06 LED Array ...2.3.07 Resist Motor ...2.3.08 DC Fan ...2.3.09 Operation Panel ...2.3.10 Second Paper Tray Mechanism (Option) ...2.3.11 Sensor Functions 3 Maintenance & Disassembly 3.1 Maintenance ...3.1.02 Maintenance Tools ...3.1.03 Maintenance Precautions 3.2 Disassembly/Assembly Procedures ...Sequence of Procedures ...3.2.01 Main Controller Board (RPSS) ...3.2.02 Program ROM Board (RPSR) ...3.2.03 Optional Expansion RAM Board (REXM) 3.3 Adjustments And Service Checks 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 Table of Contents 3.4 Cleaning 3.5 Lubrication 3.6 Consumables 4 Failure & Repair Analysis 4.1 OL840 Troubleshooting ...4.1.02 LCD Display Messages (PostScript Mode) A Reference Charts A.1 Overview A.2 Charts ...A.2.01 Main Control Board (RPSS) ...A.2.02 Program ROM Board (RPSR) ...A.2.03 RAM Board (REXM) (Option) B Illustrated Parts Listing Ol800/Ol820/Ol840 Parts Compatibility List ...Interchangeable Parts (OL800, OL820 and OL840) Page 39 40 41 42 43 44 45 46 47 48 49 50 Page: 2 Service Guide OL840 Chapter 0 About This Manual This document may not be reproduced without written permission of the Okidata® Technical Training Group. Every effort has been made to ensure the accuracy of the information contained in this training course. Okidata is not responsible for errors beyond its control. © 1994 by Okidata All rights reserved. First Edition, March 1992 Second Edition May, 1994 Written and produced by the Okidata Technical Training Group Please address any comments on this publication to: Technical Training Group Okidata 532 Fellowship Road Mount Laurel, NJ 08054-3499 Fax Number: (609) 235-2600, ext. 7034 Okilink Login Na