Oki ML395, ML395C Series free download

File name Okidata - ML395, ML395C Series Service Manual.pdf

Page: 1 Service Guide ML395/395C Chapter 0 About This Manual ML395 // ML395C 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 ML395/395C 0 About This Manual Front Cover ...Manual Copyright 1 Product Specifications 1.1 Overview - General Information 1.2 Product Specifications 1.3 Paper Specifications 1.4 Physical Specifications 1.5 Power Requirements 1.6 Environmental Conditions 1.7 Agency Approvals 1.8 Options 1.9 Consumables 1.10 Memory Specifications 1.11 Printer Reliability 2 Principles of Operation 2.1Electrical Operation - General Information ...2.1.02 Microprocessors (MPUs) and Peripheral Circuits ...2.1.03 Initialization ...2.1.04 Interface Control ...2.1.05 Printhead Drive Circuit ...2.1.06 Spacing Drive Circuit ...2.1.07 Line Feed Circuit ...2.1.08 Alarm Circuits ...2.1.09 Paper End Detection Circuit ...2.1.10 Power Supply 2.2 Mechanical Operation ...2.2.02 Spacing ...2.2.03 Ribbon Drive ...2.2.04 Paper Feed ...2.2.05 Paper-End Detection ...2.2.06 Automatic Paper Loading ...2.2.07 Paper Park 3 Maintenance & Disassembly 3.1Maintenance - General Information ...3.1.02 Maintenance Items ...3.1.03 Maintenance Precautions 3.2 Disassembly/Assembly Procedures - General Information ...3.2.01 Preliminary Items Printhead ...3.2.02 Ribbon Guide ...3.2.03 Ribbon Protector ...3.2.04 Upper Cover Assembly 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 ...3.2.05 Operator Panel Assembly ...3.2.06 Control Board (TFCB) ...3.2.07 Interface Connector Board (TFIF or LQPN) ...3.2.08 Printer Mechanism ...3.2.09 Platen Assembly ...3.2.10 Line Feed Motor ...3.2.11 Head Cable Assembly ...3.2.12 Sensor Board ...3.2.13 Ribbon Feed Assembly ...3.2.14 Space Motor Assembly ...3.2.15 Space Belt ...3.2.16 Cooling Fan ...3.2.17 Bail/Ribbon Motor Assembly ...3.2.18 Paper Bail Assembly ...3.2.19 Carriage and Carriage Shaft ...3.2.20 Paper Pressure Guide ...3.2.21 Printhead Gap / Release Lever Microswitches ...3.2.22 Push Tractor Assembly ...3.2.23 Power Supply Unit ...3.2.24 Ribbon Shift Arm Spring / Ribbon Shift Arm ...3.2.25 Roller Lever ...3.2.26 Ribbon Guide ...3.2.27 Bail Open Cam and Bail Open Gear ...3.2.28 Ribbon Shift Cam and Ribbon Shift Gear ...3.2.29 Ribbon Shift Cam Lever Assembly ...3.2.30 Printer Unit ...3.2.31 BTFD Printed Circuit Board ...3.2.32 Tension Spring ...3.2.33 Sheet Guide ...3.2.34 BTF Front Door Assembly ...3.2.35 Drive Pulley and Mini-pitch Belt ...3