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 ML380 0 About This Manual Front Cover Manual Copyright 1 Product Specifications 1.1 Overview 1.2 Physical Specifications 1.3 Power Requirements 1.4 Environmental Conditions 1.5 Agency Approvals 1.6 Operational Specifications 1.7 Paper Specifications 1.8 Memory Specifications 1.9 Consumables...
Page 4 Table of Contents Page ..3.2.05 Ribbon Feed Gear Assembly ..3.2.06 Mini-Pitch (Space) Belt ..3.2.07 Head Connector Assembly ..3.2.08 Main Control Board (UMMB) ..3.2.09 Operation Panel ..3.2.10 Line Feed Motor ..3.2.11 Photosensor Assembly (Paper End) ..3.2.12 Bail Arms ..3.2.13 Carriage Frame ..3.2.14 Platen Assembly ..3.2.15 Pressure Roller Assembly ..3.2.16 Paper Pressure Guide...
Page 5 Table of Contents Page ..4.2.02 Problem Lists ..4.2.03 Reporting Methods 4.3 Troubleshooting Updates General Information 4.4 Troubleshooting Tips ..4.4.02 Problem Categories ..4.4.03 START HERE Flowchart ..4.4.04 Tips for Preventing Image Problems ..4.4.05 Common Problems 4.5 Abnormal Output 4.6 Fault Alarms - General Information ..4.6.02 Fault Alarm Lamp Display 4.7 Repair Analysis Procedures (RAPS) - Using The RAPS ..4.7.02 RAP Index...
Page 6 Table of Contents Page ..B.1.03 Parts Ordering Information B.2 Charts ..B.2.01 Printer ..B.2.02 Covers ..B.2.03 Printer Unit ..B.2.04 Printer Mechanism (1 of 3) ..B.2.05 Printer Mechanism (2 of 3) ..B.2.06 Printer Mechanism (3 of 3) ..B.2.07 Option Parts ..B.2.08 Consumables ..B.2.09 Packaging ..B2.10 Documentation ..B.2.11 Service Training Kit Revision List...
Page 7: About This Manual
Chapter 0 About This Manual Manual Copyright 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. Okidata is not responsible for errors beyond its control.
Page 8: Product Specifications
A Centronics Parallel interface is standard. An RS232-C serial module is available as an option. 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 9: Physical Specifications
NOTE: Dimensions DO NOT INCLUDE the platen knob, acoustic cover, and paper separator. 1.2.02 Weight 17.9 pounds (8.1 kilograms) 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: Power Requirements
1.3.03 Power Frequency 120 VAC: 50/60 Hz +/- 2% 220/240 VAC: 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 11: Environmental Conditions
Operating: 0.3 G (5 to 150 Hz) or less (except at resonating frequency) Non-Operating: 1 G (5 to 150 Hz) or less (except at resonating frequency) 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: Agency Approvals
VDE: VDE 0806, 0875 Class B, and 0836 BS: BS 5850 / 6204 IEC: 435 / 380 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: Operational Specifications
Page: 8 Service Guide ML380 Chapter 1 Product Specifications 1.6 OPERATIONAL SPECIFICATIONS 1.6.01 Character Matrix Sizes Table of Print Speed and Character Matrix Mode Utility HS Utility Speed 63 cps (12 cpi) 192 cps (12 cpi) 240 cps (15 cpi)
Page 14 Letter Quality Courier Letter Gothic Prestige Orator Roman Helvette Draft Utility Special Font Effects Emphasized / Enhanced Outline Shadow Double Height Double Width 1.6.07 Front Panel Switches SELECT / Exit FEED / Group TOF / PARK / Item FONT / Set PITCH / Print 1.6.08 Graphics Resolution Graphics Resolution...
Page 15 Standard Friction Feed (Top) Push Tractor (Rear) Optional Pull Tractor (Bottom / Rear) Single-Bin Cut Sheet Feeder (Top) CSF 3800 1.6.14 Paper Feed Paths Top Feed (Standard) Rear Feed (Standard) Bottom Feed (by using an Optional feed mechanism) Special Features Paper Park Semi-Automatic Sheet Feeding Paper Tear Off...
Page 16 85 cps 100 cps Utility 150 cps 180 cps 112.5 cps 128.25 cps 150 cps 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: Paper Specifications
Page: 9 Service Guide ML380 Chapter 1 Product 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 Length: 3 to 14 inches (76.2 to 356 millimeters) Number of Copies: Original Paper Feed Path: Bottom Printhead Gap Information: Refer to the Printhead Gap Information, Section 1.6...
Page 18 Weight: 12 to 24 lbs. (45 to 90 g/m 2 ) Width: 8.5 to 11 inches (216 to 280 millimeters) Thickness: 0.004 inches (0.1 millimeters) 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: Memory Specifications
32 Kbyte Located on the main control board Used as Receive Buffer Printer Buffer Scratch Pad 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: Consumables
Life (On average, at 10 characters per inch, Utility Mode) Black Ribbon 2 million 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 21: Options
Page: 12 Service Guide ML380 Chapter 1 Product Specifications 1.10 OPTIONS 1.10.01 Cut Sheet Feeders CSF-3800 Single Bin with envelope capability Paper Width: 7.2 to 8.5 inches 182 to 216 millimeters Paper Length: 10.1 to 11.7 inches 257 to 297 millimeters Capacity: 50 sheets (20 lb.)
Page 22 When the serial interface module is installed, the printers parallel interface connector is NOT accessible. 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: Reliability
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 24: Principles Of Operation
The power to the 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 25: Microprocessor And Peripheral Circuits
Page: 15 Service Guide ML380 Chapter 2 Principles of Operation 2.1.02 Microprocessor and Peripheral Circuits Microprocessor (Q5: 83C154GS-551-V1K) The microprocessor is the nucleus of the control circuit. Its peripheral circuits operate under program control by this microprocessor. The I/O ports of the microprocessor are connected to the address bus, data bus, and control lines.
Page 27: Initialization
Interface signals (output level of ACK, BUSY, etc.), switches the SELECT indicator ON, and informs 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 28: Interface Control
The BUSY signal is also switched ON when the printer is not able to receive data (buffer is full, printer is deselected or an error condition exists). 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: Printhead Drive Circuit
The RC circuit compensates for the fluctuation of drive voltage (+35 vdc). 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: Spacing Drive Circuit
Q16 and Q17 ON, setting up the proper phase relationship of analog space motor drive signals (SP Phase 1 through SP Phase 4). These signals are then sent to 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 31: Line Feed Circuit
LFMO Phase 1 through LFMO 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 32: Alarm Circuits
When the signal DC LOW-P is active, printing is accomplished by using twelve of the twenty-four printwires in a dual-pass print. 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: Paper End Detection Circuit
PAPER END is detected by a photosensor. When the printer detects an out-of-paper condition, the PEN signal goes low, printing is stopped, and the ALARM LAMP is switched 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 34: Power Supply
Converts the AC Voltage input to + 8 vdc, + 5 vdc and + 35 vdc and supplies it to the control board. This circuit also regulates the + 5 vdc. 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: Mechanical Operation - Printhead Mechanism
Page: 24 Service Guide ML380 Chapter 2 Principles of Operation 2.2 MECHANICAL OPERATION 2.2.01 Printhead Mechanism The Microline 380 uses a highly efficient stored energy type printhead. Power is not consumed until the printwires are activated, thereby extending the printhead life to approximately 200 million characters.
Page 38: Spacing
Page: 25 Service Guide ML380 Chapter 2 Principles of Operation 2.2.02 Spacing Spacing is performed when the main shaft (installed in parallel with the platen), and carriage (mounted on the space rack) are driven by the pulse motor. Spacing involves the parts listed below.
Page 40: Ribbon Drive
The feed direction of the ribbon is maintained by switching the rotational direction of the gears in the ribbon drive assembly. This ensures uni-directional ribbon movement when bi-directional printing is used. 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: Paper Feed
Page: 27 Service Guide ML380 Chapter 2 Principles of Operation 2.2.04 Paper Feed Paper feeding is performed by turning the platen and the pin tractor. The tractor is driven by the line feed pulse motor. The paper feed mechanism consists of the following items.
Page 43: Paper-End Detection
Page: 28 Service Guide ML380 Chapter 2 Principles of Operation 2.2.05 Paper-End Detection Continuous Sheet Paper-End When continuous sheet paper is installed, the paper moves the continuous sheet paper-end lever to A1 and the sensor is switched ON. When out of continuous sheet paper, the paper-end lever moves to position B1 and the sensor is switched OFF indicating a paper-end condition.
Page 45: Semi-Automatic Sheet Feeder (Sasf)
5. Once the paper bail arm is closed, a reverse line feed of about 0.18 inches is performed. This moves the paper to the print start position. 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 46: Paper Park
3. When the PAPER-END condition exists, the printer retracts 0.49 inches of paper. The paper is still installed on the push tractor, but cut sheet paper may now be fed. 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: Maintenance & Disassembly
Proper performance of maintenance and cleaning will help to achieve the best possible print quality from the 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 48: Maintenance Tools
Clean, soft, and lint-free Cloth All-Purpose Cleaner Contact Kleen (Okidata P/N 51802301) Platen Cleaner Machine Grease Machine Oil 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: Maintenance Precautions
Refer to Section 3.3 of this Service Handbook. Space Belt (3.2.06) Space Motor Assembly (3.2.22) 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: Disassembly/Assembly Procedures - General Information
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 51: Paper Separator
4. Lift the paper separator to detach the guide pins (5) from the printer mechanism (6). P/N N/A AC Cable B.2.03 P/N 53511401 Separator: Paper RSPL B.2.03 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 52 Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 53: Printhead
Page: 36 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.02 Printhead 1. Move the bail lever (1) to back of the printer. 2. Remove the ribbon cartridge (2). 3. Grasp the tab of the head clamp (3), lift up and swing it 90° in the direction of Arrow A to unlock the printhead (4).
Page 55: Upper Cover Assembly
Page: 37 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.03 Upper Cover Assembly 1. Perform this procedure: 3.2.01. 2. Remove the platen knob (1). 3. Raise the sheet separator (2), and pull it out diagonally in the direction of Arrow A.
Page 58: Space Rack
Page: 38 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.04 Space Rack 1. Perform this procedure: 3.2.02. 2. Remove the two screws (1) on the carriage plate (2). Do not remove the ribbon feed gear assembly. 3. Slide the carriage frame (3) in the direction of Arrow A, leaving the carriage plate in place.
Page 60: Ribbon Feed Gear Assembly
Page: 39 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.05 Ribbon Feed Gear Assembly 1. Perform this procedure: 3.2.02. 2. Release the four claws (1). 3. Insert a screwdriver into the grooves (2) and pry the claws away from the carriage plate (3).
Page 62: Mini-Pitch (Space) Belt
Page: 40 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.06 Mini-Pitch (Space) Belt 1. Perform these procedures: 3.2.02 and 3.2.05. 2. Use pliers to remove the belt tension spring (1). 3. Loosen the screw (2). 4. Remove the belt (3) from the idle pulley (4).
Page 64: Head Connector Assembly
Page: 41 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.07 Head Connector Assembly 1. Perform these procedures: 3.2.01 , 3.2.02 , 3.2.03 , 3.2.05 , and 3.2.06 . 2. Remove the two head cables (1) from the connectors (2) on the control board. When cable clamp (3) is lifted, the head cables can be removed.
Page 66: Main Control Board (Ummb)
Page: 42 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.08 Main Control Board (UMMB) 1. Perform these procedures: 3.2.01 and 3.2.03 . 2. Remove the five connectors (1) connected to the control board (2). 3. Remove the five screws (3).
Page 68: Operation Panel
2. Use a screwdriver to release the six claws (1) on the operation panel (2) and remove the operation panel from the control board (3). P/N 53524301 Sheet: Operation Panel RSPL B.2.03 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 69: Line Feed Motor
After installation, check that the platen gear (5) engages firmly and rotates smoothly. P/N 56507801 Motor: Line Feed RSPL B.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 70: Photosensor Assembly (Paper End)
2. Pull the paper end sensor (1) from the sensor guide (2). P/N 56106901 Photosensor: (Assembly) RSPL B.2.04 Paper End 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 71: Bail Arms
Page: 46 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.12 Bail Arms 1. Perform these procedures: 3.2.01 , 3.2.02 , 3.2.10 , and 3.2.11 . 2. Use pliers to remove the left bail arm spring (1). 3. Push claw (2) downward, pull it out of guide hole (3) of main frame and remove the left bail arm (4).
Page 73: Carriage Frame
Page: 47 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.13 Carriage Frame 1. Perform these procedures: 3.2.01 , 3.2.02 , and 3.2.03 . 2. Open the supporting point A, and remove the head clamp (1). 3. Insert a screwdriver into the groove of carriage frame (2), and remove ribbon protector (3).
Page 75: Platen Assembly
Page: 48 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.14 Platen Assembly 1. Perform these procedures: 3.2.01 and 3.2.03 . 2. Pull lock levers (1) in the direction of arrow A, and raising them at an angle of 90°. This releases the platen assembly (2) from the main frame (3).
Page 77: Pressure Roller Assembly
Page: 49 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.15 Pressure Roller Assembly 1. Perform these procedures: 3.2.01 , 3.2.03 and 3.2.14 . 2. Remove the paper chute (1). Be careful not to damage the grounding strap. 3. Open the claw (2), and remove the paper release lever (3).
Page 79: Paper Pressure Guide
Page: 50 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.16 Paper Pressure Guide 1. Perform these procedures: 3.2.01 , 3.2.02 , 3.2.03 and 3.2.05 . 2. Working from the underside of the printer mechanism and using a screwdriver, detach the connection hole section (1) from the projection (2) of the main frame (3).
Page 81: Tractor Assembly
Page: 51 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.17 Tractor Assembly NOTE: Horizontal movement of the left tractor is restricted by a stopper on the lower cover. 1. Perform these procedures: 3.2.01 and 3.2.03 . 2. Remove the tractor drive shaft locking clamp.
Page 83: Microswitch Assembly (Sasf)
Page: 52 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.18 Microswitch Assembly (SASF) 1. Perform these procedures: 3.2.01 and 3.2.03 . 2. The microswitch assembly (1) is fastened to the frame on two pins. The first pin (2) is part of the switch.
Page 85: Microswitch Assembly (Home Position Switch)
4. Release the cables from the guides on the frame. 5. Remove the microswitch assembly. P/N 56211301 Microswitch: (Assembly) RSPL B.2.05 Home Position 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 86: Printer Mechanism
P/N 50071301 Cover: Lower (Assembly) RSPL B.2.03 P/N 53510601 Cover: Lower RSPL B.2.02 P/N 53452701 Foot: Rubber RSPL B.2.02 P/N 50071401 Chassis: Mechanism (Assembly) RSPL B.2.05 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 87 Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 88: Power Supply Unit
Page: 55 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.21 Power Supply Unit 1. Perform these procedures: 3.2.01 , 3.2.03 , and 3.2.20 . 2. Open the claws (1) and remove the AC power cord shock restraint (2). 3. Remove the two screws (3).
Page 90: Space Motor Assembly
Page: 56 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.2.22 Space Motor Assembly 1. Perform these procedures: 3.2.01 , 3.2.03 , and 3.2.20 . 2. Raise the printer mechanism (1), and remove the space motor cord (2) from the guides (3).
Page 92: Bottom Paper Guide Lever
When the paper chute (6) is installed, the cut-sheet paper end lever (7) must engage firmly with the bottom paper guide lever. P/N 53510901 Lever: Bottom Paper Guide RSPL B.2.05 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 93 Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 94: Printer Adjustments
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 95: Gap Between Platen And Printhead
Page: 59 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.3.02 Gap Between Platen and Printhead General Information The printhead gap adjustment should be performed when the following occur. 1. Print quality is darker on one side of the document.
Page 97: Space Belt Tension
2. Manually slide the carriage assembly back and forth across the entire length of the platen. 3. Tighten the screw. 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 98: Key Combinations
FEED (Hold during Power-ON) Activate Font Test SEL + TOF/PARK (Hold during Activate Hexadecimal Dump Test Power-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 99 There are two ways of entering the Menu Select Mode: from the Print Mode or when the unit is powered 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 100: From Print Mode
7. Press EXIT to save the change(s) and return to Print Mode. The SELECT lamp 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 101: From Power-Off
7. Press EXIT to save the change(s) and return to Print Mode. 8. The SELECT lamp 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 102: Printing The Menu
4. Press PRINT. 5. The Menu will print. 6. Press EXIT to exit Menu Mode. For more information regarding the menu, please refer to the Printer Handbook. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 103 Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 104: Sample Menu
Page: 66 Service Guide ML380 Chapter 3 Maintenance & Disassembly 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 105: Reset Menu To Factory Defaults
2. Power OFF the printer. 3. Press and hold SEL and FEED while powering ON the 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 106: Limited Operation
Page: 68 Service Guide ML380 Chapter 3 Maintenance & Disassembly Limited Operation General Information One of the menu selections that may be set by the end user is the operator panel function. Operator Panel Function is an item in the General Control Group of the menu. This item may be set to either Full Operation or Limited Operation.
Page 107 8. Press SET until FULL OPERATION prints. 9. Press EXIT to save the change and exit Menu Mode. 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 108: Menu Settings
Page: 69 Service Guide ML380 Chapter 3 Maintenance & Disassembly Menu Settings Factory default settings are printed in Bold Italic . Group Item Setting Font Print Mode LQ Courier LQ Swiss LQ Roman LQ Orator LQ Prestige LQ Gothic Utility Pitch 10 12 15 17.1 20 cpi Proportional...
Page 109 DTR Signal Ready on Power Up Ready on Select Busy Time 200 milliseconds 1 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 110: Top Of Form
Page: 70 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.3.06 Top of Form General Information Top of Form is the distance from the top edge of the paper to the first print position on the page (the highest vertical position on the page where the first line of printing will appear).
Page 111 4. Press TOF/PARK to store the top of form position in memory. 5. Press the SELECT button to select the printer. The SELECT lamp 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 112: Paper Park
3. The paper will advance to the loading position. 4. Push the bail lever back and 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 113: Paper Tear Off
To deactivate form tear off, the setting must be OFF. 7. Press SELECT to exit Menu Mode. 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 114: Resets
3. Press and hold SEL and FEED while powering ON the printer. NOTE: Refer to the Printer Handbook for a list of the factory default 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 115: Cleaning
Paper End Sensor Wipe or vacuum out the dust from the sensors. Platen Clean with platen 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 116: Lubrication
Page: 75 Service Guide ML380 Chapter 3 Maintenance & Disassembly 3.5 LUBRICATION 3.5.01 General Information This equipment is designed to be maintenance-free and oiling is unnecessary during operation. However, when assembly or cleaning of oiled parts occurs, lubricant is required.
Page 118: Shipping Instructions
Be sure to secure the printhead so it will not move during shipment. 1. Locate the original packaging or order replacement packaging from Okidata. (Refer to Appendix B) 2. Make sure the printhead is secured so it will not move during shipment.
Page 119: Failure & Repair Analysis
, lists methods for reporting problems. 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 120: Printer Serial Number Identification
Example Printer Serial Number: 401A0154693 Date Code 401 (4 = year; 01 = month) Revision A Serial Number 0154693 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 121: Firmware Revision Identification
(4), firmware part number (5), character generator revision number (6), and character generator part number (7). ML380 EPS A F/W 03.01 YR4077-xxxx RES 01.00 YR4084-xxxx 1 2 3 4 5 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 122: Reporting Problems - General Information
Technical Training Group realizes that service technicians have valuable experience, knowledge, and opinions. Okidata strongly encourages you to report any problems you may encounter when using the materials of this training kit. Please be as specific and detailed as possible. Your comments, suggestions, and criticisms are used to update and revise training kits.
Page 123: Problem Lists
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 124: Reporting Methods
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 125: Troubleshooting Updates General Information
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 126: Troubleshooting Tips
8. Are the printer drivers being used correct for the printer? 9. 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 127: Problem Categories
A slowly blinking SELECT lamp usually indicates a cover open, 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 128: Start Here Flowchart
NO Which port is NOT receiving data? Parallel Refer to RAP 05. Serial Refer to RAP 05. 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 129: Tips For Preventing Image Problems
3. Make sure that the printhead gap adjust lever is in the appropriate position for the paper being used. 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 130: Common Problems
Page: 88 Service Guide ML380 Chapter 4 Failure & Repair Analysis 4.4.05 Common Problems 1. Nothing happens at all when the operator powers ON the printer. The printer may not be plugged in. Check the power cord connection to the outlet. If you're using a power strip, make sure its turned on.
Page 132: Abnormal Output
Page: 89 Service Guide ML380 Chapter 4 Failure & Repair Analysis 4.5 ABNORMAL OUTPUT 4.5.01 Output Samples...
Page 133 1. Power OFF the printer. Move the carriage assembly. The carriage should move smoothly. If it does not, remove the cause of the binding. 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 4. The Table will provide a Failure Description, Probable Cause and Recommended Action. 5. The Recommended Action will direct you to take action. 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 135: Fault Alarms Lamp Display
Page: 91 Service Guide ML380 Chapter 4 Failure & Repair Analysis 4.6.02 Fault Alarm Lamp Display When the printer detects an alarm condition, the LED's are used to display the status of the alarm. The following tables show the alarm status conditions.
Page 136 * The POW LED will be turned ON and the SELECT LED will be flashing. 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 137 4. All RAPs begin with a START statement, followed by questions or another type of statement. 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 138: Rap Index
Spacing Operation Does Not Operate Normally Wrong Character Or Missing Dots Line Feed Problems Data Receiving Failure 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 139: Rap 01: No Power
Is 9 VAC output between pins 3 and 4 on CN9? NO Replace the transformer assembly. YES Replace the control board. 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 140: Rap 02: Space Operation Does Not Operate Normally
Is condition corrected? YES End of procedure. NO Replace the space motor. 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 141: Rap 03: Wrong Character Or Missing Dots
Is condition corrected? YES End of procedure. NO Replace the head cable. 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 142: Rap 04: Line Feed Trouble
YES Is fuse F1 on the control board open? YES Replace fuse. NO Replace the line feed motor. 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 143: Rap 05: Data Receiving Failure
NO Set the serial interface parameters through the menu Refer to the Printer Handbook, Chapter Three. 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 144: Rolling Ascii Test
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 145 (4), firmware part number (5), character generator revision number (6), and character generator part number (7). ML380 EPS A F/W 03.01 YR4077-xxxx RES 01.00 YR4084-xxxx CAUTION Before running this test, make sure that continuous feed paper is loaded.
Page 146 4. The test will print. 5. To stop the test, press SELECT. Sample 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 147 (4), firmware part number (5), character generator revision number (6), and character generator part number (7). ML380 EPS A F/W 03.01 YR4077-xxxx RES 01.00 YR4084-xxxx CAUTION Running the test without paper loaded will allow the printhead to print on the platen. This will dirty the platen, cause excessive wear of the ribbon, and may damage the platen, ribbon, and printhead.
Page 149 Refer to the diagram in the next section for the connector 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 150: Loopback Connector Configuration Diagram
Pin 4 to Pin 5 Pin 8 to Pin 11 Pin 6 to Pin 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 151: Procedure
Page: 104 Service Guide ML380 Chapter 4 Failure & Repair Analysis Procedure 1. Load continuous feed paper. 2. Verify that the printer is selected (SELECT lamp is lit). 3. Press the FONT and PITCH buttons at the same time. This places the printer in Menu Mode.
Page 152 NOTE: If you do not set Diagnostic Test to no, the printer will enter the test mode at each power 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 153: Serial Cable Information
· Cannon DB-25P plug (or equivalent) with 25 pins · Cannon DB-C2-J9 (or equivalent) connector shell 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: Serial Interface Signal Requirements
Indicates that the printer is not ready Ready Printer to receive data 21 to Not Used 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: Commonly Used Serial Cable Configurations
Page: 107 Service Guide ML380 Chapter 4 Failure & Repair Analysis Commonly Used Serial Cable Configurations IBM 25-Pin Cable Configuration IBM 9-Pin Cable Configuration...
Page 157: Hexadecimal Dump Mode
ASCII format. In the ASCII format, all non-printable codes will be represented by a period. 7. To return to normal printing, power OFF the printer. Then, power 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 158 The charts on the following pages provide information needed to determine if the printhead and motors used in the printer are defective. 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 159: Main Control Board (Ummb) Voltage Check Points
Service Guide ML380 Chapter 4 Failure & Repair Analysis 4.9.02 Main Control Board (UMMB) Voltage Check Points 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: Connectors Block Diagram
Page: 111 Service Guide ML380 Chapter 4 Failure & Repair Analysis 4.9.03 Connectors Block Diagram 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: Connector Location
Page: 112 Service Guide ML380 Chapter 4 Failure & Repair Analysis 4.9.04 Connector Location 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: Resistance Diagrams - Printhead
Page: 113 Service Guide ML380 Chapter 4 Failure & Repair Analysis 4.9.05 Resistance Diagrams Printhead 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: Space And Line Feed Motors
Page: 114 Service Guide ML380 Chapter 4 Failure & Repair Analysis Space and Line Feed Motors 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: Head Cable Connection
Page: 115 Service Guide ML380 Chapter 4 Failure & Repair Analysis 4.9.06 Head Cable Connection 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 165 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 166: Index To Charts
The current board contains three jumpers (SP4, 6 and 7). Refer to A.2.02 for jumper placement information. 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: A.2.01 Main Control Board (Ummb) Original
Page: 118 Service Guide ML380 Chapter A Board Diagrams A.2.01 Main Control Board (UMMB) Original Firmware Q2 - Control Program (PROM) Q3 - Character Generator (CG ROM) - soldered on the UMMB Fuses F1: 2.5 Amp 125V F2: 1.6 Amp 125V F1: 3.15 Amp 125V (Power Supply Filter Board)
Page 168 SW4: Fonts SW5: Character Pitch Test Points Check the voltages at the testpoints shown + 8 vdc (Line Feed, Space Motor, Printer Alarm Circuitry) + 35 vdc (Print Wire Drive) + 5 vdc (Printer Logic) Main Control Board (UMMB) Original Jumper Location Test Points...
Page 170: A.2.02 Main Control Board (Ummb) Current
Page: 119 Service Guide ML380 Chapter A Board Diagrams A.2.02 Main Control Board (UMMB) Current Firmware Q2 - Control Program (PROM) Fuses F1: 2.5 Amp 125V F2: 1.6 Amp 125V F1: 3.15 Amp 125V (Power Supply Filter Board) Jumpers SP4: A Side = 1MB/512K ROM in Q2 B Side = 256K ROM in Q2...
Page 171 SW3: TOF/Park SW4: Fonts SW5: Character Pitch Test Points Check the voltages at the testpoints shown + 8 vdc (Line Feed, Space Motor, Printer Alarm Circuitry) + 35 vdc (Print Wire Drive) + 5 vdc (Printer Logic) Main Control Board (UMMB) Current Jumper Location Test Points...
Page 173: Rs232-C Serial Module (Umrs)
Page: 120 Service Guide ML380 Chapter A Board Diagrams A.2.03 RS232-C Serial Module (UMRS) Firmware Q3 - Control Program PROM Fuses NONE Jumpers Side 1+ 2 = External ROM Side 2+ 3 = Internal ROM Sensors NONE Switches NONE Testpoints...
Page 175: B Illustrated Parts Listing
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 176 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 177: Definition Of Terms
A consumable is a supply item which has a specified life and must be periodically replaced. It is purchased and installed by the end user. Okidata machines are designed to work exclusively with Okidata consumables. By using genuine Okidata consumable products, the investment made in the equipment is protected.
Page 178 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 179: Parts Ordering Information
, and follow these procedures. Service Authorization for a specific product must be obtained before a Dealer can submit warranty claims. Direct questions regarding the Service Center Reference Guide to Okidata Dealer Service. Refer to the Service Center Reference Guide for information on contacting Okidata.
Page 180 · 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 181: Charts
Page: 124 Service Guide ML380 Chapter B Illustrated Parts Listing B.2 CHARTS Below is an index to the illustrated parts breakdown charts. Description Section Printer B.2.01 Covers B.2.02 Printer Unit B.2.03 Printer Mechanism (1 of 3) B.2.04 Printer Mechanism (2 of 3) B.2.05...
Page 183: B.2.01 Printer
Parallel (120V) Epson/LQ Comp. 62407902 N/A Printer: ML380 Refer to B.1.02 Parallel (220V) Epson/LQ Comp. 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: B.2.02 Covers
Page: 126 Service Guide ML380 Chapter B Illustrated Parts Listing B.2.02 Covers Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 185 RSPL 3.2.20 2PP4094-1085P1 53510601 Cover: Lower RSPL 3.2.20 1PP4094-1074P1 53452701 Foot: Rubber RSPL 3.2.20 4PB4025-1137P1 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: B.2.03 Printer Unit
Page: 127 Service Guide ML380 Chapter B Illustrated Parts Listing B.2.03 Printer Unit Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 187 220/240V 56304101 Fuse: 125V 3.15A RSPL 3.2.21 540A2046M1322 56304501 Fuse: 250V 1.25A RSPL 3.2.21 540A2058T2132 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 Page: 128 Service Guide ML380 Chapter B Illustrated Parts Listing B.2.04 Printer Mechanism (1 of 3) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 189 Item Okidata P/N Description Comments Disassembly Oki-J P/N Refer to B.1.02 Procedure 53510801 Rack: Space RSPL 3.2.04 3PP4043-3755P1 50904801 Spring: Coil RSPL 3.2.06 LB-193000-1 Screw: Self Tapping 3.2.06 4PP4050-2621P1 51219201 Pulley: Idle RSPL 3.2.06 3PP4043-3683P1 53330301 Bracket: Idle Pulley RSPL 3.2.06...
Page 190 Code: Earth 3.2.13 4YS4011-1607G2 50061305 Platen: (Assembly) RSPL 3.2.14 3PA4025-2811G5 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 Page: 129 Service Guide ML380 Chapter B Illustrated Parts Listing B.2.05 Printer Mechanism (2 of 3) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 192 56507901 Motor: Space RSPL 3.2.22 3PB4043-3762P1 (Assembly) 53510901 Lever: Bottom RSPL 3.2.23 3PP4043-3690P1 Paper Guide 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 Page: 130 Service Guide ML380 Chapter B Illustrated Parts Listing B.2.06 Printer Mechanism (3 of 3) Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. Item Okidata P/N Description Comments Disassembly Oki-J P/N Refer to B.1.02...
Page 194 3.2.17 4PA4043-3778G1 (Assembly) 51109503 Shaft: Drive RSPL 3.2.17 4PB4043-3865P1 51110601 Shaft: Lock RSPL 3.2.17 4PP4043-3784P1 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 195: B.2.07 Option Parts
Page: 131 Service Guide ML380 Chapter B Illustrated Parts Listing B.2.07 Option Parts Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information.
Page 196 Item Okidata P/N Description Comments Refer to Disassembly Oki-J P/N B.1.02 Procedure...
Page 197 Unit: Tractor Option Part of 8 3PA4025-2971G1 53510501 Cover: Tractor Option Part of 8 1PP4094-1084P1 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: Consumables
Okidata P/N Description Comments Disassembly Oki-J P/N Refer to B.1.02 Procedure 52104001 Ribbon: Consumable 3.2.02 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 199: Packaging
Page: 133 Service Guide ML380 Chapter B Illustrated Parts Listing B.2.09 Packaging Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. Item Okidata P/N Description Comments Disassembly Oki-J P/N Refer to B.1.02...
Page 200 53529702 Foam: End Cap (Left) 53529701 Foam: End Cap (Right) Bag: Printer Bag: Accessories 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 Page: 134 Service Guide ML380 Chapter B Illustrated Parts Listing B.2.10 Documentation Part numbers are subject to change. Refer to Okilink II for current part numbers and pricing information. Item Okidata P/N Description Comments Disassembly Oki-J P/N Refer to B.1.02...
Page 202 * 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 203 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. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business...
Page 204: Service Training Kit Revision List
Page: 135 Service Guide ML380 Chapter B Illustrated Parts Listing B.2.11 Service Training Kit Revision List P/N 58217701 Microline 380 Service Training Kit This kit was replaced by P/N 58217702. Items in the training kit (except for the Printer Handbook) are NOT available separately.
Page 205 Document 58055203 Sheet: Read Me First Document 59238703 Handbook: Service Document 59235903 Handbook: Printer Document 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)

OKIDATA ML380 Service Manual

About this Manual

1 Product Specifications

2 Principles of Operation

3 Maintenance & Disassembly

4 Failure & Repair Analysis

B Illustrated Parts Listing

Quick Links

Troubleshooting

Related Manuals for OKIDATA ML380

Summary of Contents for OKIDATA ML380

Table of Contents