OKIDATA ML393Plus Service Manual

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Page 1 Thank You for purchasing this Factory Service Manual on EBAY from PCTECHINFO! Click Here for more Factory Service Manuals for other Computer and Printer / Copier Manufacturers from PCTECHINFO!
Page 2 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.
Page 3: Table Of Contents
Table of Contents Page Service Guide ML393/ML393CPlus 0 About This Manual Front Cover Copyright 1 Specifications 1.1 Overview - General Information/Specifications 1.2 Physical Specifications 1.3 Power Requirements 1.4 Environmental Conditions 1.5 Agency Approvals 1.6 Operational Specifications - Character Matrix Sizes ..1.6.02 Characters Per Line ..1.6.03 Character Pitches ..1.6.04 Character Sets...
Page 4 Table of Contents Page ..2.1.08 Alarm Circuits ..2.1.09 Paper End Detection Circuit ..2.1.10 Power Supply 2.2 Mechanical Operation - Printhead Mechanism ..2.2.02 Spacing ..2.2.03 Ribbon Drive ..2.2.04 Paper Feed ..2.2.05 Paper-End Detection ..2.2.06 Paper Park ..2.2.07 Automatic Paper Loading 3 Maintenance 3.1 Maintenance - General Information 3.2 Disassembly/Assembly Procedures - General Information ..3.2.01 Preliminary Items, Printhead...
Page 5 Table of Contents Page ..3.2.25 Ribbon Guide : Microline 393C-Plus - Color Model Only ..3.2.26 Bail Open Cam and Bail Open Gear : Microline 393C-Plus - Color Model Only ..3.2.27 Ribbon Shift Cam and Ribbon Shift Gear : Microline 393C-Plus - Color Model Only ..3.2.28 Ribbon Shift Cam Lever Assembly : Microline 393C-Plus - Color Model Only ..Cut Sheet Feeder - Option : Sections 3.2.29 Through 3.2.35...
Page 6 Table of Contents Page 4.1 Overview 4.2 Reporting Problems 4.3 Troubleshooting Updates 4.4 Troubleshooting Tips - Preliminary Checks ..4.4.02 Problem Categories ..4.4.03 START HERE Flowchart ..4.4.04 Tips for Preventing Image Problems ..4.4.05 Common Problems ..Epson / IBM, Self Test Revision 1.16 (FCO 7681) ..Missing Spaces When Printing Wide Reports (FCO 7693) ..Self Test Revisions 1.07 and 1.10 (FCO 7730) ..Parallel Timing Specification Changes...
Page 7 Table of Contents Page A.1 Overview - General Information A.2 Index To Charts ..A.2.01 Main Control Board (LQEM) ..A.2.02 Power Supply ..A.2.03 Interface Board (LQPN) ..A.2.04 Sensor Board (LQEW or LPRW) ..A.2.05 Operator Panel Board (LQSX) B Illustrated Parts Listing B.1 Overview - General Information ..B.1.02 Definition of Terms ..B.1.03 Parts Ordering Information...
Page 8: About This Manual
Chapter 0 About This Manual Microline 393 / 393C-Plus Service Handbook This document may not be reproduced without the 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.
Page 9: Specifications
The printers are capable of emulating the Epson LQ-2550 and the IBM Proprinter XL24 printers. Both an RS232-C Serial Interface and a Centronics Parallel Interface are standard. 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)
Page 10: Physical Specifications
Depth: 19 inches (48.3 centimeters) Height: 8 inches (20.3 centimeters) 1.2.02 Printer Weight 37 pounds (16.8 kilograms) UPS Shippable 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)
Page 11: Power Requirements
1.3.02 Power Consumption Operating: 180 VA Idle: 50 VA 1.3.03 Power Frequency 50/60 Hz +/- 2% 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)
Page 12: Environmental Conditions
While in storage: -40 to 158 degrees Fahrenheit ( - 40 to 70 degrees Celsius) Storage humidity: 5% to 95% RH 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)
Page 13: Agency Approvals
UL No: UL Standard No. 478 CSA No: CSA Standard C22.2 (220) FCC: FCC Class B 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)
Page 14: Operational Specifications - Character Matrix Sizes
9 x 17 @ 12 cpi High Speed Draft 520 cps 7 x 17 @ 15 cpi 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)
Page 15: Characters Per Line
Chapter 1 Specifications 1.6.02 Characters Per Line Characters Per Line Characters Per Inch (Maximum) 17.1 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)
Page 16: Character Pitches
Page: 10 Service Guide ML393/ML393CPlus Chapter 1 Specifications 1.6.03 Character Pitches 10, 12, 15, 17.1, 20 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)
Page 17: Character Sets
16 Foreign Language Sets Zero / Slashed Zero DLL - 2 Sets of 128 characters 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)
Page 18: Emulations
Service Guide ML393/ML393CPlus Chapter 1 Specifications 1.6.05 Emulations NOTE: The emulations are co-resident Epson LQ IBM XL24 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)
Page 19: Fonts
Chapter 1 Specifications 1.6.06 Fonts Standard Courier Swiss Roman Orator Optional Font Cartridges Prestige Letter Gothic 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)
Page 20: Front Panel Switches
SELECT Paper Park / Top of Form Quiet (Menu) Mode Font Selection Line Feed Pitch Selection FORM FEED Print Quality Selection 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)
Page 21: Graphics Resolution
60 (horizontal) x 60 (vertical) dots per inch (DPI) minimum 360 (horizontal) x 360 (vertical) dots per inch (DPI) maximum 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)
Page 22: Interface
Service Guide ML393/ML393CPlus Chapter 1 Specifications 1.6.09 Interface Standard Centronics Parallel 19.2K Super-Speed Serial RS232C 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)
Page 23: Line Feed Increments
8 lines per inch (lpi) [0.125 inch (3.175 millimeters)] Variable n/60 inch n/72 inch n/180 inch n/216 inch n/360 inch 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)
Page 24: Line Feed Time
8.0 IPS (inches per second) slew rate @ gap 1,2 6.0 IPS (inches per second) slew rate @ gap 3+ 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)
Page 25: Menu Mode
Selects Group Function Item Selects Item Selects Item Value Exit Exits Menu Mode Enters Select 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)
Page 26 Pull Tractor (Bottom) Cut Sheet Feeder (Top) CSF 30001 - Single Bin CSF 30002 - Dual Bin 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)
Page 27 Bottom Feed (by using an Optional feed mechanism) Special Features Paper Park Forms Tear Off 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)
Page 28 Refer to the Setup Guide or Section 2.2 of this Service Handbook for information on paper loading. 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)
Page 29 Rear Feed: 2.3 inches (5.84 centimeters) Bottom Feed: .94 inches (2.388 centimeters) Cut Sheet: .93 inches (2.362 centimeters) 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)
Page 30 Service Guide ML393/ML393CPlus Chapter 1 Specifications 1.6.17 Paper Tear Capabilities Tear Bar (for Forms Tear-Off) 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)
Page 31 Page: 25 Service Guide ML393/ML393CPlus Chapter 1 Specifications 1.6.18 Print Method Printhead Type General Information Impact: Dot Matrix 24 pin printhead .0078 inch (0.20 millimeter) diameter pins Overheat Protection When printhead temperature reaches 115 to 125 degrees Celsius, the printer stops bi-directional printing. Uni-directional printing begins.
Page 32 3 - 4 Two-part forms 4 - 5 Three-part forms Four-part forms 5 - 9 Envelopes 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)
Page 33 Chapter 1 Specifications 1.6.19 Print Modes Letter Quality Near Letter Quality Utility High Speed Draft 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)
Page 34 20 cpi 300 cps 200 cps cpi - Characters Per Inch cps - Characters Per Second 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)
Page 35 Page: 28 Service Guide ML393/ML393CPlus Chapter 1 Specifications 1.7 PAPER SPECIFICATIONS CAUTION: Use Bottom Feed and/or optional Pull Tractor for card stock and labels. 1.7.01 Types Card Stock Weight: 100 lbs. (375 g/m 2 ) Maximum Width: 5 to 14 inches (12.7 to 35.6 centimeters) Length: 3 to 17 inches (7.62 to 43.18 centimeters) Thickness: .014 inches (0.36 millimeters) Paper Feed Path: Bottom...
Page 36 Single Feed Minimum: 6.5 x 3.6 inches (16.5 x 9.1 centimeters) Maximum: 9.5 x 4.1 inches (24.1 x 10.4 centimeters) Continuous Non-overlap type Thickness: .014 inches (.325 millimeters) Maximum Paper Feed Path: Bottom Printhead Gap Information: Refer to the Printhead Gap Information, Section 1.6. Labels Weight: N/A Width: 3.5 to 15.5 inches (8.8 to 41.9 centimeters)
Page 37 The recommended width is specific to paper type. Paper Minimum: 3.5 inches ( 8.8 centimeters) Maximum: 16 inches (40.6 centimeters) 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)
Page 38 IBM I/F Buffer 0 Kbytes (minimum) DLL Buffer 0 to 32 Kbytes 1.8.03 EEPROM Internal Control, Menu = 256 bits 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)
Page 39 400K Characters at 10 cpi in letter quality mode CAUTION: Using a non-Okidata ribbon may damage the printhead and void any warranties. 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)
Page 40 Paper Types: Continuous Feed and Labels 1.10.03 RAM Buffer Expansion Card 32 kbytes 1.10.04 Font Cartridges Prestige Gothic 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)
Page 41 1.11.06 Warranty (Limited) One year, parts, labor, and printhead 1.11.07 Service Authorized Okidata Service Centers 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)
Page 42 Control Board is supplied by the power supply unit. The power to the other electrical parts is distributed via the connectors on the Control Board. 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)
Page 43 Page: 34 Service Guide ML393/ML393CPlus Chapter 2 Principles of Operation 2.1.02 Microprocessors (MPUs) and Peripheral Circuits Microprocessors (Q16: 83C154UGS and Q11: 80C154VGS) The Microprocessors are the nucleus of the control circuit. The peripheral circuits operate under program control by these microprocessors. The Master MPU (Q16) controls the interface, code processing and the Slave MPU.
Page 44 Correction for head gap setting Interface LSI (Q12: MSM60306) The MSM60306 is an external interface LSI and controls the following functions. Interface Control Controls both the parallel and serial interface functions Pin 4 of this LSI enables selection of the serial or parallel interface Address Latch (for lower 8 bits of the master MPU) MMU (Memory Management Unit) LSI (Q13: MSM73003) This LSI is connected between the Master and Slave MPUs and performs these functions.
Page 46 SELECT lamp ON to inform the host computer that the printer is ready to receive data. 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)
Page 47 Page: 36 Service Guide ML393/ML393CPlus Chapter 2 Principles of Operation 2.1.04 Interface Control The printer is capable of serial or parallel operation. The desired interface method is selected by sliding the interface cover to expose the desired connector. When this is done, the interface select switch is turned ON or OFF to inform the Interface Control LSI (Q12) of the selected interface.
Page 48 TTL levels to RS232-C levels by the line driver (Q2) and sent to the serial interface connector. 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)
Page 49 An RC circuit is also used to compensate for the fluctuation of drive voltage (+38 vdc).2-1-04B.pcx 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)
Page 50 Control LSI detects the edge pulses from these signals and divides the frequency to output the MO LSI IPT signal for use in Dot Timing. 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)
Page 51 The signals LF Phase 1 through LF Phase 4 establish the proper phase relationship for driving the motor. 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)
Page 52 The Slave MPU relays the switch status to the Master MPU. The Master MPU will halt printing at the completion of the current line and light the ALARM Lamp. 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)
Page 53 When the printer detects an out of paper condition, the PE-N signal goes low. Printing stops. The ALARM LAMP is turned ON. 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)
Page 54 Page: 42 Service Guide ML393/ML393CPlus Chapter 2 Principles of Operation 2.1.10 Power Supply This switching power supply converts the AC input voltage to +5 vdc, +/-8 vdc and +38 vdc for use throughout the printer. Voltage / Signal Table Voltage/Signal Purpose +5 vdc IC Logic Levels - LED Drive Voltage...
Page 56 Page: 43 Service Guide ML393/ML393CPlus Chapter 2 Principles of Operation 2.2 MECHANICAL OPERATION 2.2.01 Printhead Mechanism The printer uses a highly efficient stored energy type printhead. Power is not consumed until the printwires are activated. This extends printhead life to approximately 200 million characters. The printhead uses 24 printwires (two columns of 12 wires each).
Page 57 2. Printhead Gap Adjust This is a manual adjustment performed by the end-user. It is performed by moving the blue head gap lever, located on the right side of the printer. The settings are 1, 2, 3, 4, 5, 6, 7, 8, 9 1 is the smallest (narrowest) gap.
Page 59 Page: 44 Service Guide ML393/ML393CPlus Chapter 2 Principles of Operation 2.2.02 Spacing Spacing is performed when the space motor drives the carriage along the carriage shaft, parallel to the platen. The spacing mechanism consists of the items listed below. Space Motor Drive Pulley Idle Pulley Carriage Shaft...
Page 61 Page: 45 Service Guide ML393/ML393CPlus Chapter 2 Principles of Operation 2.2.03 Ribbon Drive The ribbon drive mechanism moves the ribbon in synchronization with the space motor operation. The ribbon drive mechanism consists of the items listed below. Ribbon Drive Assembly Ribbon Cartridge Ribbon Cartridge An endless ribbon with a single direction feed is used.
Page 63 Page: 46 Service Guide ML393/ML393CPlus Chapter 2 Principles of Operation 2.2.04 Paper Feed Paper feeding is performed by turning the platen and the pin tractor, which is driven by the line feed pulse motor. The paper feed mechanism consists of the items listed below. Pulse Motor (with gears) Idler Gear Change Spring...
Page 65 Page: 47 Service Guide ML393/ML393CPlus Chapter 2 Principles of Operation 2.2.05 Paper-End Detection Cut-Sheet Paper-End When the release lever is in the SHEET FEED position, the photosensor located in the paper pressure guide is active. If sheet paper is installed, the paper is detected by the sensor and the sensor is activated (ON).
Page 66 When rear feed paper is installed, pressure is placed on the microswitch, located in the left push tractor. Since the switch is turned ON, paper is detected. 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)
Page 67 Page: 48 Service Guide ML393/ML393CPlus Chapter 2 Principles of Operation 2.2.06 Paper Park General Information Paper park allows the user to switch from continuous feed paper to single-sheet paper without removing the continuous feed paper from the printer. The continuous feed paper will be retracted from the platen and down into the printer housing without disengaging it from the built-in tractor.
Page 69 If the paper does not advance after the line feed motor has fed the equivalent of 2.4 inches of paper, the Auto-Load process stops. This situation is treated like an ordinary paper-end condition. 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)
Page 70 7 mm open-ended wrench Ruler (capable of measuring 1/16 inch increments) 3/32 inch socket with driver Feeler Gauge Digital Multimeter Cleaning / Lubrication Shop Vacuum Cloth (soft and lint-free) All-Purpose Cleaner Platen Cleaner Contact Kleen (Okidata P/N 51802301) Machine Grease...
Page 71 Machine Oil 3.1.03 Maintenance Precautions 1. Do not disassemble the unit if it is operating normally. 2. Before starting disassembly and assembly, always power OFF the unit and detach the AC power cord. 3. Detach the interface cable, if installed. 4.
Page 72 Carriage Shaft (3.2.18 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)
Page 73 This section contains the printer disassembly procedures. Only the removal procedures are explained here. Reverse the procedure for the installation. At the bottom of each procedure is a listing of the parts covered in that procedure. The Okidata part number, item description, comment (RSPL, Option, Consumable) and cross-reference to Appendix B is provided for each part.
Page 74 Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 75 Page: 52 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.01 Preliminary Items, Printhead WARNING: The printhead will be HOT immediately after printing. 1. Power OFF the printer and detach the AC power cord (1). 2. Detach the interface cable, if installed. [ Not Shown ] 3.
Page 77 3. Lift the ribbon guide (2) and remove it. P/N 53055901 Guide: Ribbon (Black) RSPL B.2.12 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)
Page 78 4. Lift the ribbon protector (2) and remove it. P/N 53527001 Protector: Ribbon RSPL B.2.12 , B.2.13 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)
Page 79 Page: 55 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.04 Upper Cover Assembly Procedure 1. Disconnect the interface cable (1). 2. Remove the font cartridge or buffer expansion cartridge (2) if installed. 3. Detach the two platen knobs (3). 4. Remove the two cover mounting screws (4) at the rear of the printer. 5.
Page 81 Page: 56 Service Guide ML393/ML393CPlus Chapter 3 Maintenance Parts List P/N 70000803 Kit: Parallel Interface Plug n Play Option B.2.14 Accessory (Cable) P/N 70012801 Kit: RS232-C Serial Interface Cable Option B.2.14 P/N 70010201 Gothic Font Cartridge Option B.2.03 , B.2.14 P/N 70010101 Prestige Font Cartridge Option B.2.03 , B.2.14 P/N 70016401 Cartridge: 32 Kbyte RAM Expansion Option B.2.03...
Page 83 Page: 57 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.05 Operator Panel Assembly 1. Remove the upper cover assembly (3.2.04 2. Disconnect the operator panel cable (1) from CN10 (2) on the control board. 3. Remove the two mounting screws (3). 4.
Page 85 Page: 58 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.06 Control Board (LQEM) 1. Remove the upper cover assembly (3.2.04 2. Remove the ribbon cartridge. 3. Release the lock of connector CN10 (1) and detach the operator panel cable (2). 4. Remove the five shield cover mounting screws (3). 5.
Page 87 Page: 59 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.07 Interface Connector Board (LQPN) NOTE: To allow easier access to the mounting screw and cables, configure the interface connector board to use the serial interface connector. 1. Remove the upper cover assembly (3.2.04 2.
Page 89 Page: 60 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.08 Printer Mechanism 1. Remove the upper cover assembly (3.2.04 2. Remove the control board (3.2.06 3. Detach connectors CN102 (1) and CN103 (2) from the interface connector board. 4. Remove the three mounting screws (3) at the rear of the printer mechanism (4). 5.
Page 91 Page: 61 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.09 Platen Assembly 1. Remove the upper cover assembly (3.2.04 2. Loosen the three 7 mm line feed motor mounting bolts (1). 3. Move the line feed motor (2) closer to the platen (3) and detach the line feed mini-pitch belt (4). 4.
Page 93 P/N 56508401 Motor: Line Feed Assembly RSPL B.2.06 , 09 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)
Page 94 Page: 63 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.11 Printhead Cable Assembly 1. Detach the printhead (3.2.01 2. Remove the upper cover assembly (3.2.04 3. Remove the printer mechanism (3.2.09 4. Work from the bottom of the printer mechanism and loosen the two mounting screws (1). 5.
Page 96 Page: 64 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.12 Sensor Board 1. Remove the upper cover assembly (3.2.04 2. Remove the printer mechanism (3.2.09 3. Raise the front of the printer mechanism. 4. Disconnect cables CN2 (1) and CN3 (2) from the sensor board (3). 5.
Page 98 Page: 65 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.13 Ribbon Feed Assembly 1. Remove the upper cover assembly (3.2.04 2. Remove the printer mechanism (3.2.08 3. Remove the left shoulder screw [color] (1A) and right should screw [color] (1B). 4. Detach the cartridge bracket (2). 5.
Page 100 Page: 66 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.14 Space Motor Assembly 1. Remove the printhead (3.2.01 2. Remove the upper cover assembly (3.2.04 3. Remove the ribbon feed assembly (3.2.13 4. Loosen the two belt pulley bracket mounting screws (1). 5.
Page 102 Page: 67 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.15 Space Belt 1. Remove the printhead (3.2.01 2. Remove the upper cover assembly (3.2.04 3. Remove the head cable assembly (3.2.11 4. Remove the space motor assembly (3.2.14 5. Remove the mounting screw (1). 6.
Page 104 P/N 56506301 Motor: Step (Bail Arm) Assembly RSPL B.2.07 , B.2.10 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)
Page 105 Page: 69 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.17 Paper Bail Assembly 1. Remove the upper cover assembly (3.2.04 2. Remove the printer mechanism (3.2.08 3. Remove the bail/ribbon motor assembly (3.2.16 4. Detach the left bail arm spring (1A) and right bail arm spring (1B). 5.
Page 107 Page: 70 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.18 Carriage and Carriage Shaft Procedure 1. Remove the printhead (3.2.01 2. Remove the upper cover assembly (3.2.04 3. Loosen the screw (1) and slide it towards the back of the printer. This screw affects the placement of the slide guide (1A).
Page 109 B.2.12 P/N 50069401 Carriage: Color Assembly , B.2.13 B.2.12 , B.2.13 P/N N/A Spacer: Round 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)
Page 110 Page: 72 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.19 Paper Pressure Guide 1. Remove the printhead (3.2.01 2. Remove the upper cover assembly (3.2.04 3. Remove the two paper chute springs (1) located on each side of the paper chute assembly (2). 4.
Page 112 P/N 56209901 Switch: Micro (Adj and Rel Lever) RSPL B.2.06 , B.2.09 P/N 53063801 Bracket: PH Gap Indication RSPL B.2.07 , B.2.09 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)
Page 113 Page: 74 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.21 Push Tractor Assembly Procedure - Disassembly 1. Remove the upper cover assembly (3.2.04 2. Remove the lower center guide A(1A) and lower center guide B (1B). 3. Separate the claws (2) and remove the drive gear A (3A) and drive gear B (3B) from the right side of the printer mechanism.
Page 115 Page: 75 Service Guide ML393/ML393CPlus Chapter 3 Maintenance Procedure - Installation Notes NOTES: When installing the push tractor assembly, follow the precautions listed below. 1. Install the friction piece in the upper center guide. If the upper center guide moves easily along the locking shaft, use a standard screwdriver to rotate the friction piece 45 degrees (12).
Page 117 Page: 76 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.22 Power Supply Unit 1. Remove the printer mechanism (3.2.08 2. Disconnect the two cables (1) from the left side of the power supply unit (2). 3. Remove the four power supply mounting screws (3). 4.
Page 119 Chapter 3 Maintenance 3.2.23 3.2.28 Sections through apply to the Microline 393C-Plus - Color Model Only 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)
Page 120 Page: 78 Service Guide ML393/ML393CPlus Chapter 3 Maintenance Microline 393C-Plus - Color Model Only 3.2.23 Ribbon Shift Arm Spring / Ribbon Shift Arm 1. Detach the printer access cover. 2. Remove the ribbon cartridge (1). 3. Remove the shift arm spring (2). 4.
Page 122 Page: 79 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.24 Roller Lever 1. Open the printer access cover. 2. Remove the ribbon cartridge. 3. Remove the shift arm spring (3.2.23 4. Remove the two 7 mm bolts (1) and detach the roller lever (2). P/N 53479001 Lever: Roller (Color) RSPL B.2.13 P/N N/A Screw B.2.13...
Page 124 Page: 80 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.25 Ribbon Guide 1. Remove the printhead (3.2.01 2. Loosen the 7 mm ribbon shift arm mounting bolt (1) and detach the ribbon shift arm (2) from projection A of the ribbon guide (3). 3.
Page 126 Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 127 Page: 81 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.26 Bail Open Cam and Bail Open Gear 1. Remove the printer mechanism (3.2.08 2. Detach the E snap ring (1). 3. Remove the bail open gear (2). 4. Remove the bail open cam (3). 5.
Page 129 Page: 82 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.27 Ribbon Shift Cam and Ribbon Shift Gear 1. Remove the printer mechanism (3.2.08 2. Detach the E snap ring (1). 3. Remove the ribbon shift gear (2). 4. Remove the washer. 5.
Page 131 Page: 83 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.28 Ribbon Shift Cam Lever Assembly 1. Remove the printer mechanism (3.2.08 2. Remove the ribbon shift cam and ribbon shift gear (3.2.27 3. Remove the mounting screw (1) 4. Detach the ribbon shift cam lever (2) from the cartridge bracket (3). NOTE: Installation Perform the color adjustment.
Page 133 Chapter 3 Maintenance 3.2.29 3.2.35 CUT SHEET FEEDER - OPTION Sections through apply to the 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)
Page 134 Page: 85 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.29 Friction Sheet 1. Power OFF the printer. 2. Remove the cut sheet feeder. 3. Remove the sheet supporter (1). 4. Move the paper lock lever (2) towards the back. 5. Remove the friction sheets (5) from the sheet guide A (3) and sheet guide B (4). NOTE: Installation When installing new friction sheets, remove the peel-off backing.
Page 136 Page: 86 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.30 Rear Bin 6. Power OFF the printer. 7. Remove the cut sheet feeder. 8. Remove the front sheet supporter (1). 9. Remove the rear sheet supporter (2). 10. Use a screwdriver (5) to push the lock levers (6) in the direction of arrow A. The levers are inside the left side cover (3) and right side cover (4) of the rear-bin unit (10).
Page 138 Page: 87 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.31 Side Cover 1. Power OFF the printer. 2. Remove the cut sheet feeder. 3. Disengage the rear-bin unit from the front-bin unit (3.2.30 4. Remove the three screws (1). 5. Remove the bolt (2). 6.
Page 140 Page: 88 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.32 Roller Supports and Rollers (H) 1. Power OFF the printer. 2. Remove the cut sheet feeder. 3. Disengage the rear-bin unit from the front-bin unit (3.2.30 (3.2.31 4. Remove the left and right side covers from the front and rear bin units 5.
Page 142 6. Remove the three screws (3). 7. Remove the two screws (4). 8. Remove the control board (5). 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)
Page 143 Page: 90 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.34 Connection Cord 1. Power OFF the printer. 2. Remove the cut sheet feeder. 3. Disengage the rear-bin unit from the front-bin unit (3.2.30 (3.2.31 4. Remove the left side cover from the front bin unit 5.
Page 145 Page: 91 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.2.35 Motor Assembly 1. Power OFF the printer. 2. Remove the cut sheet feeder. 3. Disengage the rear-bin unit from the front-bin unit (3.2.30 (3.2.31 4. Remove the left and right side covers from the front bin unit 5.
Page 147 Failure to perform these procedures may result in unnecessary service calls. 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)
Page 148 Page: 93 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.3.02 Printhead Gap Adjustment General Information Before performing this adjustment, always verify that the printhead is properly installed. Perform the printhead gap adjustment procedure when any of the following occur. Poor Print Quality Uneven Print Quality (darker on one side of the document).
Page 149 15. Install the ribbon protector, ribbon guide and printhead. CAUTION: Be sure to pull the printhead toward the stopper whenever it is installed. 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)
Page 150 4. Adjust the line feed motor (2) position to obtain a 1 /16 inch deflection at point B. 5. Tighten the three mounting bolts. 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)
Page 151 Page: 95 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.3.04 Color Adjustment (Microline 393C-Plus Printer) General Information Perform the color adjustment when any of the following occur. Colors "bleed" into one another Parts are replaced Ribbon Shift Cam and Ribbon Shift Gear (3.2.27 Ribbon Shift Cam Lever Assembly (3.2.28...
Page 153 PARK/TOF (Hold during power ON) Activate Rolling ASCII Test To end Rolling ASCII Test press SELECT 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)
Page 154 The Menu is made up of a number of Groups. Each Group has a list of Items. Each Item has several Settings. 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)
Page 155 Press EXIT to save any changes and exit Menu Mode. The printer will go ON-LINE. (SELECT will light.) 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)
Page 156: Menu Print
7. Press EXIT to save any changes and exit Menu Mode. 8. The printer will go ON-LINE. (SELECT will light.) 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)
Page 157: Sample Menu
Page: 100 Service Guide ML393/ML393CPlus Chapter 3 Maintenance Sample Menu 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)
Page 158: Menu Settings
Page: 101 Service Guide ML393/ML393CPlus Chapter 3 Maintenance Menu Settings Factory default settings are printed in Bold Italic . Group Item Setting Font Print Quality LQ NLQ Utility HSD Typestyle Courier Roman Helvette Orator Cartridge DLL Pitch 10 cpi 12 cpi 15 cpi 17.1 cpi 20 cpi Proportional Style Normal Italics...
Page 159 DTR Signal Ready on Power UP Ready on Select 200 mS 1 sec Busy Time 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)
Page 160: Menu Reset
3. Press SELECT and TOF while powering ON the printer. 4. The Menu is reset to Factory Defaults. 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)
Page 161: Limited Operation
7. Press EXIT to save any changes and exit Menu Mode. 8. The printer will go ON-LINE. (SELECT will light.) 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)
Page 162: Top Of Form
5. Release PARK. 6. Press SELECT and place the printer ON-LINE. (SELECT will be lit). 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)
Page 163: Paper Park
5. The paper will advance to the loading position. 6. Adjust the top of form (if necessary). 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)
Page 164: Forms Tear Off
Page: 106 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.3.09 Forms Tear Off General Information This feature (when activated) will automatically advance continuous feed paper to the tear-off position after it finishes printing the last page in the document. A few seconds after printing stops, the printer will move the paper up to the tear-off position, aligning the perforation with the serrated edge on the access cover.
Page 165 11. Press EXIT to save any changes and exit Menu Mode. 12. The printer will go ON-LINE. (SELECT will light.) 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)
Page 166: Resets
9. Press TOF and SELECT while powering ON the printer. 10. The Menu is reset to Factory Defaults. 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)
Page 167: Cleaning
Page: 108 Service Guide ML393/ML393CPlus Chapter 3 Maintenance 3.4 CLEANING WARNING When cleaning the printer, power OFF the printer and detach the AC power cable from the printer and the AC outlet. 3.4.01 General Information An accumulation of paper dust is the most frequent cause of print quality problems in a dot matrix printer. Small pieces of paper can cause paper jams.
Page 168 Wipe clean with soft cloth and platen cleaner Printer Cover Clean with soft cloth and all-purpose cleaner 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)
Page 169: Lubrication - General Information
These codes are defined below. 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)
Page 170: Lubrication Schedule
Chapter 3 Maintenance 3.5.02 Lubrication Schedule Once a year Every 600 hours of operating time. 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)
Page 171: Lubrication Types And Amounts
GEP - B Moly-lube grease or equivalent Small Apply and wipe off GEP - C 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)
Page 172: Areas Not Lubricated
Space Motor Printed Circuit Board Electrical Contacts and Connections Teeth of the gears in the Gear Case Assembly 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)
Page 173: Lubrication Points (Monochrome And Color)
Page: 113 Service Guide ML393/ML393CPlus Chapter 3 Maintenance Lubrication Points (Monochrome and Color) Left and Right Sides of Printer Type Amount Diagram Designation Abundant PM- A Machine Oil Medium: 3 - 4 Drops PM - B 10w-30 or equivalent Small: 1 Drop PM - C Grease Abundant...
Page 175: Platen, Carriage Shaft, Idle Gear
Page: 114 Service Guide ML393/ML393CPlus Chapter 3 Maintenance Platen, Carriage Shaft, Idle Gear Type Amount Diagram Designation Abundant PM- A Machine Oil Medium: 3 - 4 Drops PM - B 10w-30 or equivalent Small: 1 Drop PM - C Grease Abundant GEP - A Alvania grease #2 EP...
Page 177: Ribbon Feed Assembly
Page: 115 Service Guide ML393/ML393CPlus Chapter 3 Maintenance Ribbon Feed Assembly Type Amount Diagram Designation Abundant PM- A Machine Oil Medium: 3 - 4 Drops PM - B 10w-30 or equivalent Small: 1 Drop PM - C Grease Abundant GEP - A Alvania grease #2 EP Medium Thin coating(.008 inches) GEP - B...
Page 179: Lubrication Points (Color)
Page: 116 Service Guide ML393/ML393CPlus Chapter 3 Maintenance Lubrication Points (Color) Type Amount Diagram Designation Abundant PM- A Machine Oil Medium: 3 - 4 Drops PM - B 10w-30 or equivalent Small: 1 Drop PM - C Grease Abundant GEP - A Alvania grease #2 EP Medium Thin coating(.008 GEP - B...
Page 181: Lubrication Points (Options)
Page: 117 Service Guide ML393/ML393CPlus Chapter 3 Maintenance Lubrication Points (Options) Type Amount Diagram Designation Abundant PM- A Machine Oil Medium: 3 - 4 Drops PM - B 10w-30 or equivalent Small: 1 Drop PM - C Grease Abundant GEP - A Alvania grease #2 EP Medium Thin coating(.008 GEP - B...
Page 183: Shipping Instructions
3. Make sure the printhead is secured so it will not move during shipment. 4. Pack the unit, using the materials from Step 1. 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)
Page 184: Failure Analysis
If you encounter a situation that is NOT addressed by the documentation in this kit, please report the problem to Okidata, using one of the methods listed. Refer to the Service Center Reference Guide for information on contacting Okidata.
Page 185 6. Character Generator Revision Number 01.00 7. Character Generator Part Number Not Shown 1 2 3 4 5 6 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)
Page 186 Errors and corrections in the training materials are listed in the Training Section of Okilink II. The Technical Service Bulletins (also known as Okidata's Monthly Mail) are available via Okilink II. Situations that are NOT addressed in the reference documentation, technical service bulletins, or round-tables may be reported to the Dealer Service and Support Engineers (Contact Technical Support) or the Technical Training Group.
Page 187 Firmware Revision Level Description of Problem Document Name (with page number or procedure) with error or problem. 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)
Page 188 Technical Service Bulletins 4.3.02 Okilink II Okilink II is Okidata's Bulletin Board Service. This service is available to all Okidata Certified Service Technicians. Okilink II provides troubleshooting and service information. Technicians can download files, ask questions of Okidata's technical support personnel, and participate in round table discussions about Okidata products and services.
Page 189 9. Are the correct printer drivers being used for the printer? 10. Is the printer driver being used the latest (current) release? 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)
Page 190 A solid ALARM Lamp usually indicates a cover open, a paper jam, or paper-end (out of paper) condition. 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)
Page 191 Refer to Section 4.6 NO The problem occurs during printing. Refer to the RAP Index - Section 4.7 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)
Page 192 3 - 4 Two-part forms 4 - 5 Three-part forms Four-part forms 5 - 9 Envelopes 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)
Page 193: Front Cover
Page: 126 Service Guide ML393/ML393CPlus Chapter 4 Failure Analysis 4.4.05 Common Problems 1. Nothing happens when the printer is powered ON. Make sure the printer is plugged in. Check the power cord connection to the printer and the outlet. If a power strip is being used, make sure the strip is powered ON. 2.
Page 194 In cold, dry weather, static charges can build up on continuous-form paper. This can make the paper cling to the paper separator. If this problem occurs during high-volume printing jobs, try moving the single sheet paper guides on the separator together so that the paper rests on the guides rather than on the separator itself.
Page 195 Verify that any embedded commands in the software were correctly entered. 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)
Page 196 This FCO may be ordered through Okidata's Order Processing Center. The part number for the FCO is 58218201. NOTE: FCO 7693 replaces FCO 7681. 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)
Page 197 This FCO may be ordered through Okidata's Order Processing Center. The part number for FCO 7693 is 58218401. NOTE: FCO 7693 replaces FCO 7681. 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)
Page 198 120 V Black 007A0019018 220 V Color 007A0002028 120 V Black 007A0000115 220 V Color 007A0000061 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)
Page 199 · "Paper End" message on the computer screen · Hesitation problems · No printed data 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)
Page 200 Microline 393 E/I (Color) 120 V Black 0011A0003052 and above Microline 393 E/I (Color) 220 V Color 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)
Page 201 Microline 393 E/I (Color) 120 V Black 102A0003724 and above Microline 393 E/I (Color) 220 V Color 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)
Page 202 Page: 133 Service Guide ML393/ML393CPlus Chapter 4 Failure Analysis Modifications to Q6, Main Control Board NOTE: This information is also provided in Technical Service Bulletin 3213. The main control board has been modified. EPROM socket location Q6 accepts four additional pins. Either a 28 pin EPROM or a 32 pin Masked ROM may be installed with no changes and full compatibility.
Page 204 Page: 134 Service Guide ML393/ML393CPlus Chapter 4 Failure Analysis 4.5 ABNORMAL OUTPUT 4.5.01 Output Samples Light Print on the Entire Page Possible Causes · Ribbon is "dried out". Replace the ribbon. · Head gap lever is in the incorrect position. Place the lever in correct position. ·...
Page 205 · Make sure that the space belt tension is within specification. If it is not, tighten the belt. 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)
Page 206 Page: 135 Service Guide ML393/ML393CPlus Chapter 4 Failure Analysis 4.6 FAULT ALARMS 4.6.01 General Information When an error condition exists, the ALARM LAMP will flash. The operator panel is used to display printer error conditions. The type of error condition can be determined by decoding the operator panel lamps. Refer to the Alarm Codes Table in this section to identify both the error condition and the recommended corrective action for each condition.
Page 207 External Replace RAM Error cartridge Command Replace FIFO control Check board Error Print Pass Replace Error control board Position Replace Sense control Error board Print Over Replace Run Error control board Print Stop Replace Error control board Head Refer to Homing RAP 03 Error...
Page 208 Problem Data Refer to Receiving RAP 10 Problem Ribbon Refer to Shift RAP 11 Problem 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)
Page 209 Page: 136 Service Guide ML393/ML393CPlus Chapter 4 Failure Analysis 4.7 REPAIR ANALYSIS PROCEDURES (RAPs) 4.7.01 Using the RAPs When using the Repair Analysis Procedures, follow these steps. 1. Go to the RAP Index. 2. Find the RAP which is associated with the printers problem. 3.
Page 210 Data Receive Problem Alarm Light Lit Color Ribbon Shift Problems 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)
Page 211 YES Replace the control board. Has the problem been resolved? NO Contact Okidata Technical Support. YES End of procedure. 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)
Page 212 NO Connect them correctly. Has the problem been resolved? YES End of procedure. NO Replace the space motor. 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)
Page 213 NO Replace the space motor. Has the problem been resolved? YES End of procedure. NO Contact Okidata Technical Support. 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)
Page 214 NO Replace the bail/ribbon motor. Has the problem been resolved? YES End of procedure. NO Replace the control board. 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)
Page 215 NO Replace the sensor board. Has the problem been resolved? YES End of procedure. NO Replace the bail/ribbon motor. 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)
Page 216 NO Check the MENU Settings related to the interface. Baud Rate Character Format Protocol BUSY Signal output selection 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)
Page 217 YES Check that the ribbon feed shaft is correctly engaged with the ribbon feed roller of the ribbon cartridge. 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)
Page 218 NO Replace the line feed motor. After replacing the line feed motor, adjust the belt tension. 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)
Page 219 YES Replace the operator panel. Has the problem been resolved? YES End of procedure. NO Replace the control board. 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)
Page 220 YES Are you using a parallel interface? YES Refer to RAP 10B. NO Refer to RAP 10C. 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)
Page 221 1. Replace the interface connector board. 2. Replace the cable connected to CN6 on the control board. 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)
Page 222 1. Replace the interface connector board. 2. Replace the cable connected to CN6 on the control board. 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)
Page 223 Page: 149 Service Guide ML393/ML393CPlus Chapter 4 Failure Analysis RAP 10D: Data Receive Failure (Alarm Light Lit) START Remove the upper cover. Press and hold the cover open microswitch while powering ON the printer. Does the alarm lamp come on? NO Perform the operations listed below.
Page 224 YES Replace the control board. Has the problem been resolved? YES End of procedure. NO Contact Okidata Technical Support. 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)
Page 225 Page: 150 Service Guide ML393/ML393CPlus Chapter 4 Failure Analysis RAP 11: Color Ribbon Shift Problem START Does the ribbon shift mechanism operate properly? NO Go to A. YES Is BLACK RIBBON set on the menu? NO Go to B. YES Set another color. Has the problem been resolved? NO Go to B.
Page 226 NO Correct the installation or replace the defective assembly. Has the problem been resolved? YES End of procedure. NO Replace the control board. 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)
Page 227 The Serial Interface Loopback Test checks the operation of the serial interface board. The Hexadecimal Dump Mode checks the data transfer between the computer and printer. 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)
Page 228 At the top of the printout, you will see the Printer Model, Emulation, Country Code, Interface Selection and Firmware Revision Level. This information is often required when performing service or when contacting Okidata. Have this test available during your service call. Procedure CAUTION: If 13.6 inch Paper Width is selected in the Menu, and you run this test with 8.5 inch wide paper loaded, the...
Page 230 At the top of the printout, you will see the Printer Model, Emulation, Country Code, Interface Selection and Firmware Revision Level. This information is often required when performing service or when contacting Okidata. Have this test available during your service call. Procedure 1.
Page 232: Menu Mode
Page: 154 Service Guide ML393/ML393CPlus Chapter 4 Failure Analysis 4.8.04 Serial Interface - Loopback Test NOTE: In order to run this test, a serial loopback test connector must be attached to the printers serial port. Procedure 1. Place the printer in the Serial Diagnostic Mode Set the DIAGNOSTIC TEST menu item to YES.
Page 233 Loopback Connector Configuration 1. Jumper the following pins together. Pin 2 to Pin 3 Pin 4 to Pin 5 Pin 8 to Pin 11 Pin 6 to Pin 20...
Page 234 Serial Cable Information The information in this section will help you make a serial cable to connect between the printer and computer. Refer to the computer documentation to determine the cable requirements on the computers end. The printer has the following cable requirements. ·...
Page 235 Transmit Data From Printer Serial data transmitted to the system Receive Data To Printer Serial data received by the printer Request to Send From Printer Always set to low (mark) Not Used Data Set Ready To Printer Indicates that data can be sent Signal Ground Ground...
Page 236 IBM 9-Pin Cable Configuration 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)
Page 237 Page: 155 Service Guide ML393/ML393CPlus Chapter 4 Failure Analysis 4.8.05 Hexadecimal Dump General Information Hexadecimal Dump Mode allows you to test the data being sent from the computer to the printer. When the printer is in Hex Dump Mode, all data received (including text and printer commands) will be printed in both hexadecimal and ASCII format.
Page 239 Page: 156 Service Guide ML393/ML393CPlus Chapter 4 Failure Analysis 4.9 RESISTANCE CHECKS 4.9.01 General Information The following resistance charts are included in this section. Printhead Resistance Line Feed Motor Resistance Space Motor Resistance Ribbon Motor Resistance...
Page 241 Chapter 4 Failure Analysis 4.9.02 Printhead Resistance Check The resistance of each coil should be about 4.5 ohms. 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)
Page 242 4.9.03 Line Feed Motor Resistance Check The resistance of each coil should be about 5.6 ohms. 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)
Page 243 4.9.04 Space Motor Resistance Check The resistance of the motor should be about 11.4 ohms. 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)
Page 244 4.9.05 Ribbon Motor Resistance Check The resistance of each coil should be about 34 ohms 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)
Page 245 Switches Test Points Where an item is not applicable, the word NONE will be listed. 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)
Page 246 Page: 162 Service Guide ML393/ML393CPlus Chapter A Board Diagrams A.2 INDEX TO CHARTS Description Board Designation Section Main Control Board LQEM A.2.01 Power Supply A.2.02 A.2.03 Interface Connection Assembly LQPN Sensor Board LQEW or LPRW A.2.04 Operator Panel Board LQSX A.2.05...
Page 248 Page: 163 Service Guide ML393/ML393CPlus Chapter A Board Diagrams A.2.01 Main Control Board (LQEM) Firmware Q6 - Program ROM of Master MPU Q7 - Character Generator ROM Q17 - Program Rom of Slave MPU Fuses F1 2.0 Amp 125V Jumpers SP1: OPEN - Internal ROM SHORTED - External ROM SP3 OPEN - Monochrome Model...
Page 250 Pin 6 +8vdc Pin 7 -8vdc Pin 4 +5vdc Pin 2 Signal Ground Pin 3 Signal Ground 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)
Page 251 Page: 165 Service Guide ML393/ML393CPlus Chapter A Board Diagrams A.2.03 Interface Board (LQPN) Fuses NONE Jumpers SP101 A Side: Auto Feed XT signal of Centronics interface valid B Side: Auto Feed XT signal of Centronics interface invalid SP102 A Side: I-Prime Signal of Centronics interface is valid B Side: I-Prime Signal of Centronics interface is invalid SP103 A Side: +5 vdc is output to pin 18 of Centronics interface.
Page 253 Page: 166 Service Guide ML393/ML393CPlus Chapter A Board Diagrams A.2.04 Sensor Board (LQEW or LPRW) Firmware NONE Fuses NONE Jumpers NONE Sensors Bottom Paper Sensor Bail Arm Sensor Ribbon Shift Sensor Located on sensor board in color model only Connector for Friction Feed Paper Photosensor (located on the Paper Pressure Guide) Switches NONE Test Points...
Page 255 A.2.05 Operator Panel Board (LQSX) Firmware NONE Fuses NONE Jumpers NONE Sensors NONE Switches NONE Test Points NONE 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)
Page 256: Consumables
N/A will appear where a part number is not available. Current Part Numbers Okidata has made every effort to include current part numbers in this Service Handbook at the time of publishing . However, technical information frequently changes. These changes often include new or modified parts, with new or modified part numbers.
Page 257 Okilink II, Faxable Facts, and Technical Information. Refer to the Service Center Reference Guide for information on accessing these resources. 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)
Page 258: Options
Parts in assemblies will say "Part of xx" under the Comments section of the tables. Blank Okidata does not recommend stocking this item. This item should be purchased on an As Required Basis only . The availability of this item is NOT guaranteed by Okidata.
Page 259 The TSBs contain the latest information on firmware revisions, procedure changes, and technical information updates. Okidata distributes the TSBs through Okilink II. The TSBs are issued monthly. 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)
Page 260 · Your Purchase Order Number · Okidata Part Number(s) Use this Appendix, Okilink II, Faxable Facts, or contact Okidata Technical Support to find the correct part number. Refer to the Service Center Reference Guide for information on contacting Okidata. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 261 Pull Tractor Unit Assembly (Option) B.2.15 Packing Materials B.2.16 Consumables B.2.17 Documentation B.2.18 Service Training Kit Revisions B.2.19 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)
Page 262: Printer Unit
Page: 172 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.01 Printer Unit Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02...
Page 263 393-Plus Black 220 62408301 Printer: Microline 393C-Plus Color 120 62408302 Printer: Microline 393C-Plus Color 220 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)
Page 264: Upper Cover Assembly
Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.02 Upper Cover Assembly Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. Item Okidata P/N Description Comments Refer Disassembly Oki-J P/N to B.1.02...
Page 265 2PA4016-4723G26 (ML393C+) 53482901 Lever: Bail 3.2.04 51001901 Separator: Paper 3.2.04 53482801 Guide: Sheet 3.2.04 Insertion 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)
Page 266: Printer Unit General Assembly (1 Of 2)
Page: 174 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.03 Printer Unit General Assembly (1 of 2) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 267: Power Supply
Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02 Procedure 50054202 Printhead: (Mylar RSPL 3.2.01 4YA4023-1100G1 Comp) 53478601 Knob: Platen RSPL 3.2.04 3PP4043-2501P1 12 * 55050411 PCB: Main RSPL 3.2.06 4YA4042-1460G11 (LQEM-1) Black 55034501 PCB: RSPL 3.2.07 4YA4042-1293G11...
Page 269: Printer Unit General Assembly (2 Of 2)
Page: 175 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.04 Printer Unit General Assembly (2 of 2) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 270: Options
When removing PROMs and EEPROMs, you MUST follow standard Electrostatic Sensitive Device (ESD) safety precautions or you may damage the components. 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)
Page 271 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.05 Operator Panel Assembly Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02...
Page 272 53535301 Lever: Cover Open 3.2.05 3PP4016-5387P1 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)
Page 273 Page: 177 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.06 Printer Mechanism - Monochrome (1 of 3) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 274 Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02 Procedure 55050501 PCB: Sensor RSPL 3.2.12 4YA4042-1462G1 (LQEW or LPRW) 56619101 Cable: Sensor RSPL 3.2.12 4YS4011-4321P1 Board Connection 56506201 Motor: Space RSPL 3.2.14 3YX4043-2550G1 Assembly 56508401 Motor: Line Feed RSPL 3.2.10...
Page 276 Page: 178 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.07 Printer Mechanism - Monochrome (2 of 3) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 277 3.2.17 4PA4043-2711G1 Shaft 53478501 Arm: Left Bail RSPL 3.2.17 3PP4043-2509P1 53478502 Arm: Right Bail RSPL 3.2.17 3PP4043-2510P1 51214701 Cam: Bail Open RSPL 3.2.17 3PP4043-2764P1 (Black) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 278 Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 279 Page: 179 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.08 Printer Mechanism - Monochrome (3 of 3) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 280 Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02 Procedure 50512923 Rubber Grommet (in RSPL 3.2.08 5K-2542-23 base) 50703701 Collar: Eccentric RSPL 3.2.18 4PP4043-2507P1 (Carr. Rail) Head Adjustment 53478801 Block: Release RSPL 3.2.19 4PP4043-2460P1 Lever Guide Rear Guide 3.2.19...
Page 281 B.2.13 Pressure Bar 3.2.19 Locking Shaft 3.2.21 Upper Drive Shaft 3.2.21 Lower Drive Shaft 3.2.21 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)
Page 282 Page: 180 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.09 Printer Mechanism - Color (1 of 3) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 283 Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02 Procedure 56619101 Cable: Sensor RSPL 3.2.12 4YS4011-4321P1 Board Connection 56506201 Motor: Space RSPL 3.2.14 3YX4043-2550G1 Assembly 56508401 Motor: Line Feed RSPL 3.2.10 3PB4043-3853P1 Assembly 51302790 Belt: Mini Pitch (Line RSPL 3.2.09...
Page 284 55034801 Sensor: Cut-Sheet RSPL 3.2.19 4YX4043-2576G1 Paper-End 51214401 Gear: Idle (Release RSPL 3.2.09 4PP4043-2458P1 Lever) 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)
Page 285 Page: 181 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.10 Printer Mechanism - Color (2 of 3) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 286 Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02 Procedure 50910305 Spring: Idle Gear RSPL 3.2.09 4LB-190600-6 51214201 Gear: Drive - A RSPL 3.2.21 4PP4043-2456P1 51214301 Gear: Drive - B RSPL 3.2.21 4PP4043-2457P1 50054301 Assembly: Ribbon RSPL 3.2.13...
Page 287 Spring: Brake - A RSPL 3.2.27 4PB4043-3240P1 50911001 Spring: Brake - B RSPL 3.2.26 4PP4043-2783P1 (Color) 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)
Page 288 Page: 182 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.11 Printer Mechanism - Color (3 of 3) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 289 Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02 Procedure 50512923 Rubber Grommet (in RSPL 3.2.08 5K-2542-23 base) 50703701 Collar: Eccentric RSPL 3.2.18 4PP4043-2507P1 (Carr. Rail) Head Adjustment 53478801 Block: Release RSPL 3.2.19 4PP4043-2460P1 Lever Guide Rear Guide 3.2.19...
Page 290 3.2.13 Pressure Bar 3.2.19 Locking Shaft 3.2.21 Upper Drive Shaft 3.2.21 Lower Drive Shaft 3.2.21 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)
Page 291 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.12 Carriage Assembly - Monochrome Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02...
Page 292 50057601 Carriage: Black RSPL 3.2.18 2YX4043-2610G3 Assembly Spacer: Round 3.2.18 51005501 Guide: Slide 3.2.18 4PP4044-1340P1 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)
Page 293 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.13 Carriage Assembly - Color Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02...
Page 294: Ribbon Guide
Post: Ribbon Guide RSPL 3.2.25 4PP4043-2615P1 (Color) Spacer: Round 3.2.18 51005501 Guide: Slide 3.2.18 4PP4044-1340P1 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)
Page 295: Parts List
Page: 185 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.14 Options Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 296 Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02 Procedure 70011701 Pull Tractor Option 2PA4016-4722G4 Assembly w/ Acoustic Cover 70010201 Gothic Font Option 3.2.04 4YA4042-1301G101 Cartridge 70010101 Prestige Font Option 3.2.04 4YA4042-1301G102 Cartridge 70016401 Cartridge: 32 Kbyte Option 3.2.04...
Page 297 70012801 Kit: RS232-C Serial Option Both 3.2.01 Interface 3.2.04 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)
Page 298: Parts List
Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.15 Pull Tractor Assembly (Option) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02...
Page 299 Frame: Side (Right) 2PP4043-2687P1 53535601 Frame: Side (Left) 2PP4043-2686P1 54123306 Screw +P(SW+W)3-6-23D 51223501 Gear: Drive 4PP4043-2689P1 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)
Page 300 Page: 187 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.16 Packing Materials Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 301 Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02 Procedure 53460209 Overpack ML393+ 53477201 Box: ML393 Epson...
Page 302 End Cap (Right) ML393+ 53532001 Box: ML393+ 53532101 Box: ML393+ Color 53532501 Foam Spacer ML393+ 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)
Page 303 3.2.01 (Black) 52103701 Cartridge: Ribbon Consumable 3.2.01 (Color) 52103801 Cartridge: Film Consumable 3.2.01 Ribbon (Black) 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)
Page 304 Page: 189 Service Guide ML393/ML393CPlus Chapter B Illustrated Parts Listing B.2.18 Documentation Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. Item Okidata P/N Description Comments Refer to Disassembly B.1.02 Oki-J P/N...
Page 305 * To order Marketing Literature, complete an Okidata Marketing Literature Order Form. Fax the completed form to Okidata Marketing Communications. * * Obtain this form by faxing a request to Okidata Marketing Communications. Refer to the Service Center Reference Guide for information on contacting Okidata.
Page 306 * To order Marketing Literature, complete an Okidata Marketing Literature Order Form. Fax the completed form to Okidata Marketing Communications. * * Obtain this form by faxing a request to Okidata Marketing Communications. Refer to the Service Center Reference Guide for information on contacting Okidata.
Page 307 This kit was replaced by P/N 58218602. Except for the Customer Service, Reference, and Setup Guides and the Cut Sheet Feeder Maintenance Manual, items in the training kit are NOT available separately. Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02...
Page 308 P/N 58218602 Microline 393-Plus / 393C-Plus Service Training Kit This kit replaces P/N 58218601. Except for the Reference and Setup Guides, items in the training kit are NOT available separately. Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02...
Page 309 Microline 390/391 P/N 59230701B Microline 393 P/N 58214701D Except for the Customer Service, Reference, and Setup Guides and the Cut Sheet Feeder Maintenance Manual, items in the training kit are NOT available separately. Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02...
Page 310 This kit was replaced by P/N 59230702. Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02 Procedure 59230701B Kit: Service Training Document Includes 2 Microline 390/391 - 8 Z 58045401 Cover Letter: Document Part of 1 Z Microline 390/391...
Page 311 Document Part of 1 Microline 393 59227402 Manual: Document Part of 1 M-520565 2D Maintenance Cut-Sheet Feeder 3001/3002 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)
Page 312 The printers are capable of emulating the Epson LQ-2550 or the IBM XL24 printers. Both an RS232-C Serial Interface and a Centronics Parallel Interface are standard. 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)
Page 313: C.2 Printer Specifications
Page: 192 Service Guide ML393/ML393CPlus Chapter C Microline 393/393C Specifications C.2 PRINTER SPECIFICATIONS C.2.01 Interface Methods Both are available Centronics Parallel Interface RS232-C Serial Interface C.2.02 Line Feed Increments 1/6" 1/8" n/60" n/180" n/360" C.2.03 Line Feed Time 55 ms @ 6 LPI 8.0 IPS (inches per second) slew rate @ gap 1,2 6.0 IPS (inches per second) slew rate @ gap 3+ C.2.04 Paper Feed Method...
Page 314 IBM Character Set I and Set II IBM Proprinter All Character Set International Characters Line Graphics 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)
Page 315: C.3 Paper Specifications
12 - 24 lb. 16 - 24 lbs (Cut Sheet Feeders) C.3.03 Number of Copies 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)
Page 316: C.4 Physical Specifications
C.4 PHYSICAL SPECIFICATIONS C.4.01 Printer Dimensions Width: 16.42" Height: 7.09" Depth: 22.44" C.4.02 Printer Weight 37 lbs. 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)
Page 317: C.5 Power Requirements
120 VAC +10%, -15% 220/240 +10%, -15% Frequency 50/60 hz. +/-2% C.5.02 Power Consumption 180 VA during Self-Test 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)
Page 318: C.6 Environmental Conditions
C.6.02 Printer Noise Level (10 cpi - LQ Mode) Standard noise level: 58 dba Quite mode noise level: 55 dba 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)
Page 319: C.7 Agency Approvals
North America FCC Class B UL 478 (Office Machines and Business Equipment) CSA 22.2 154 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)
Page 320: C.8 Options
The Pull Tractor Assembly is required for bottom feeding. A Pull Tractor Assembly must be used to feed labels 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)
Page 321: C.9 Consumables
Cyan: 1.8 million characters Ribbon Life Magenta: 1.8 million characters Ribbon Life Yellow: 1.3 million characters Ribbon Life 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)
Page 322: C.10 Memory Specifications
DLL Buffer = 0 to 32 Kbytes C.10.03 EEPROM Internal Control, Menu = 256 bits 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)
Page 323: C.11 Printer Reliability
200 Million Characters (average) @ 10 cpi Draft Mode @ 25% Duty Cycle, 35% Page Density 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)

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