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LED Page Printers Service Manual
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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
OL400e / OL410e / OL410e-PS Series
LED Page Printers
Adobe Acrobat printable reference copy of the OKIDATA Service Training Manual. 09/17/97
Note: This Adobe Acrobat version of the Okidata Service Training Manual was built with the pictures rendered at 300 dpi, which is ideal for printing, but does not view on most displays well.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Table of Contents
Page
Service Manual for OL400e/OL410e/OL410e-PS
0A Introduction Front Cover Overview Recommendations Information Updates Notices Where To Send Testing Materials Missing Items Or Missing Pages Course Path Service Training Requirements ....General Description ....Installation ....Principles Of Operation ....Failure Analysis ....Appendices A And B ....Maintenance ........Disassembly / Assembly ........Adjustments And Service Checks ........Cleaning ........Lubrication ........Shipping Instructions Service Authorization ....Certification Test ....Course Critique 1 Product Specifications 1.1 General Description 1.2 Product Specifications 1.3 Paper Specifications 1.4 Physical Specifications 1.5 Power Requirements 1.6 Environmental Conditions 1.7 Agency Approvals 1.8 Options 1.9 Consumables 1.10 Memory Specifications 1.11 Reliability Specifications 2 Principles of Operation 2.1 Printer Overview 2.2 Control Process ....2.2.02 Block Diagrams 400E ....2.2.02 Block Diagrams 410E ....2.2.02 Block Diagrams 410E/PS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
Table of Contents 2.2.03 Main Controller Board (OLCW) Overview ....Main Controller Board Functions ........Reception Control ........Command Analysis Processing ........Font Processing ........Main Controller Board Buffer Read Operation ........Engine Control Functions ............Operation Panel Control ............Operation Panel Functions ........Sensor Control & Location Diagrams ............Inlet Sensor 1 ............Inlet Sensor 2 ............Inlet Sensor 3 / Paper Sensor ............Outlet Sensor ............Paper Supply Sensor ............Toner Sensor ........Print Operation 2.2.04 Expanded Ram Board(410E Only) 2.2.05 Expansion Ram Board(400E) 2.2.06 Expansion Ram Board(410E) 2.2.07 Font Cards 2.2.08 Postscript Board 2.3.01 Basic Principals - Electrostatic Printing ....2.3.02 Engine Functions ....2.3.03 Eeprom Operation ....2.3.04 Power Supply Board ....2.3.05 Fusing Unit ....2.3.06 Registration Motor ....2.3.07 Drum Motor ....2.3.08 LED Head 2.4 Printing Process General Information ....2.4.02 Hopping ....2.4.03 Feeding ....2.4.04 Charging ....2.4.05 Exposing ....2.4.06 Developing ....2.4.07 Transfer ....2.4.08 Fusing ....2.4.09 Cleaning ....2.4.10 Printing 2.5 Sensors And Switches ....Sensor Location Diagram ....2.5.01 Paper Jam Detection ........Paper Inlet Jam
Page 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83
Table of Contents ........Paper Feed Jam ....2.5.02 Toner Low Sensor ....2.5.03 Paper Path 3 Maintenance & Disassembly ....3.1.01 Maintenance General Information ....3.1.02 Maintenance Items ....3.1.03 Maintenance Precautions 3.2 Disassembly/Assembly Procedures ....3.2.01 Preliminary Items ....3.2.02 Upper Cover Assembly ........Upper Cover Assembly Re-Installation ....3.2.03 Font Card Cover ....3.2.04 Face-Up Stacker Assembly ....3.2.05 Bias Springs And Exit Rollers ....3.2.06 Operator Panel Assembly ....3.2.07 LED Head Unit ....3.2.08 Eject Roller Assembly ....3.2.09 Main Stepper Motor ....3.2.10 Registration Stepper Motor ....3.2.11 Lower Base Unit ....3.2.12 Motor Assembly ....3.2.13 Hopping Roller Shaft Assembly ....3.2.14 Face-Down Stacker Assembly ....3.2.15 Registration Roller ....3.2.16 Transfer Roller ....3.2.17 Fusing Unit Assembly ....3.2.18 Pressure Roller ....3.2.19 Inlet Sensor Plate ....3.2.20 Toner Sensor Plate ....3.2.21 Outlet Sensor Plate ....3.2.22 Manual Feed Guide Assembly ....3.2.23 Paper Supply Sensor Plate ....3.2.24 Main Controller Board ........Main Controller Board Re-Installation ....3.2.25 Power Supply ....3.2.26 Transformer ....3.2.27 Cassette Guide (Left) ....3.2.28 Cassette Guide (Right) ....3.2.29 Base Plate ....3.2.30 Multi-Purpose Feeder Unit - Link ....3.2.31 Multi-Purpose Feeder Unit - Separator ....3.2.32 Multi-Purpose Feeder Unit - Board (OLEV) ....3.2.33 Multi-Purpose Feeder Unit - Stepping Motor ....3.2.34 Multi-Purpose Feeder Unit - Planet Gear
Page 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126
Table of Contents ....3.2.35 Multi-Purpose Feeder Unit - Rollers A And B ....3.2.36 Second Paper Feed Unit - Hopping Stepper Motor ....3.2.37 Second Paper Feed Unit - Board (OLEV) ....3.2.38 Second Paper Feed Unit - Hopping Roller Shaft 3.3 Adjustments And Service Settings ....3.3.01 User's Maintenance Mode ........Menu Reset / Menu Print ............Menu Settings - Level 1 ............Menu Settings - Level 2 ............Sample Menu - OL400E ............Sample Menu - OL410E ............Sample Menu - OL410E/PS ........Hex Dump ........Drum Counter Reset ........Operator Panel Menu Enable / Disable ........X Adjust ........Y Adjust ....3.3.02 System Maintenance Mode ........Page Count ........Page Count Printing Enable / Disable ........Continuous Print Test ........Serial Interface Loop Test ........EEPROM Reset (Printer Initializes) ........EEPROM Reset (Printer Does Not Initialize) ....3.3.03 Engine Maintenance Mode ........LED Head Drive Time ........Print Start Position ........Drum Count Total Display ........Drum Count ........T2 Tbl 1 ........T2 Tbl 2 ........EF Tbl 1 ........EF Tbl 2 ........Engine Reset 3.4 Cleaning General Information ....3.4.02 Printer Unit ....3.4.03 Covers ....3.4.04 LED Head Unit ....3.4.05 Cleaning Cycle Initialization 3.5 Lubrication General Information 3.6 Shipping Instructions - Return For Service ....3.6.02 All Other Returns 4 Failure & Repair Analysis 4.1.01 Troubleshooting Steps
Page 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169
Table of Contents 4.2 Reporting Problems - General Information 4.3 Troubleshooting Updates 4.4 Troubleshooting Tips - Preliminary Checks ....4.4.02 Tips For Preventing Image Problems ....4.4.03 Common Problems ....4.4.04 Audible Roller Noises ....4.4.05 Audible Noise / Input Jams From Paper Cassette ....4.4.06 Pinch Roller Clip Problems ....4.4.07 Paper Jams Under The Fuser Roller ....4.4.08 Dirty LED 4.5 Abnormal Output - Output Samples & Repair Procedures 4.6 Error Messages - Using The Error Message Charts ....Front Panel Messages: Normal Daily Status ....Front Panel Messages: Paper, Cover Open, Buffer Overflow ....Front Panel Messages: Buffer Overflow, Interface, Paper Size ....Front Panel Messages: Jam, Cover Open, EEPROM, ROM, Card ....Front Panel Messages: Controller Errors ....Front Panel Messages: Additional OL410E-PS 4.7 Repair Analysis Procedures (RAPS) - Index ....RAP 01: Printer Does Not Initialize ....RAP 02: Paper Input Jam ....RAP 03: Paper Feed Jam ....RAP 04: Paper Exit Jam ....RAP 05: Paper Size Error ....RAP 06: Fusing Unit Error (Error 71) ....RAP 07: Fan Error (Error 70) ....RAP 08: Light Or Blurred Output ....RAP 09: Dark Background ....RAP 10: Blank Output ....RAP 11: Vertical Black Streaks ....RAP 12: Evenly Spaced, Repeating Marks ....RAP 13: Missing Print ....RAP 14: Poor Fusing ....RAP 15: Vertical White Streaks 4.8 Printer Tests - Font Sample Test ........Font Sample Test: OL400E ........Font Sample Test: OL410E ........Font Sample Test: OL410E-PS ....4.8.02 Continuous Print Test ....4.8.03 Serial Interface Loopback Test ....4.8.04 Menu Print ........Sample Menu: OL400E
Page 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211
Table of Contents ........Sample Menu: OL410E ........Sample Menu: OL410E-PS ....4.8.05 Demo Page Print ........Demo Page Sample: OL400E ........Demo Page Sample: OL410E ........Demo Page Sample: OL410E-PS 4.9 Resistance Check Points - Registration Motor, Drum Motor, And Fusing Unit ....4.9.02 Resistance Check Points - Transformer And Fan Motor A Reference Charts A.1 Board Diagrams & General Information A.2 Index To Charts ....A.2.01 Main Controller Board (OLCW) ....A.2.02 Postscript Board (OLPT) ....A.2.03 Ram Expansion Board (OLCB) ....A.2.04 Operator Panel Board ....A.2.05 Power Supply Board (OLAA) A.3 Interconnect Diagram B Illustrated Parts Listing Illustrated Parts Listing - Overview & General Information ....B.1.02 Definition Of Terms ....B.1.03 Parts Ordering Information B.2 Listing Of Illustrated Parts Breakdown Charts ....B.2.01 Lower Base Unit (1 Of 2) ....B.2.02 Lower Base Unit (2 Of 2) ....B.2.03 Upper Cover ....B.2.04 Base Unit (1 Of 2) ....B.2.05 Base Unit (2 Of 2) ....B.2.06 Options ....B.2.07 Multi-Purpose Feeder Unit ....B.2.08 Second Paper Feed Unit (Option) [ST-250] ....B.2.09 Second Paper Feed Unit (Option) Cabinet [ST-250] ....B.2.10 Packaging ....B.2.11 Consumables
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220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242
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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
OVERVIEW Okidata developed this course in order to provide the information necessary to install and maintain the OL400e, OL410e, and OL410e/PS LED Page Printers. Upon successful completion of this training course, you will be able to do the following. - Install and operate the printer - Locate the major assemblies of the printer - Identify fault indications - Perform corrective and preventive maintenance The Service Handbook is the primary reference manual for this course. You cannot, however, successfully complete this course by referring only to this manual. Take the time to familiarize yourself with all of the documentation in the training kit. This additional information will greatly simplify working with the product. NOTE: Whenever this manual references the OL400e, the information will also apply to the OL410e and OL410e/PS. Information unique to the OL410e and OL410e/PS will be listed as such!
Okidata's Technical Training Program is designed to build a knowledgeable and efficient service and support group for Okidata products. One step in becoming an Authorized Okidata Service Center is obtaining a training kit for the appropriate product. This acquisition allows the Dealership to have reference materials available during service jobs. Having, and using, these reference materials will minimize the time and money spent on repairs. Technicians complete Certification Tests as part of Okidata's Authorization process. Testing familiarizes the technician with the product and reference materials. This training course provides assembly level repair information to the field technician. No attempt is made to provide basic training in being a technician. This kit strives to train a technician to service the product. Okidata views service technicians as representatives of Okidata. Through this course, Okidata seeks to provide the means and the motivation that will make good service a reality. Remember Component level servicing is provided only at Okidata Service Repair Depots!
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
RECOMMENDATIONS Prerequisites Before beginning this course, you should know the following concepts. - Have an understanding of basic electronics - Be familiar with electrostatic principles - Be familiar with xerographic technology - Be familiar with the proper procedures for handling circuit boards, Read Only Memory (ROM), and Random Access Memory (RAM) - Be able to use basic tools - Be able to use a digital multi-meter (DMM) Equipment The following equipment is recommended for the successful completion of this training course. - OL400e/OL410e/OL410e-PS printer (optional) - Tools (optional - refer to Section Three of the Service Handbook) - PC (for Okilink II connection) - Modem (for Okilink II connection) - Communications Software (for Okilink II connection) - Telephone (for Faxable Facts connection) - Facsimile Machine (for Faxable Facts connection) Documentation You should have access to the following documentation while completing this course. - Okidata Service Center Reference Guide - OL400e/OL410e/OL410e-PS Service Handbook - OL400e/OL410e Printer Handbook - OL400e/PS Printer Handbook Supplement
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
INFORMATION UPDATES 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. Technical updates are made available to authorized Service Centers through the monthly technical mail. The monthly mail is distributed via Okidata's Bulletin Board, Okilink II. Additions and corrections to the training materials are available in the Training Section of Okilink II. Please sign on and check this section before beginning this course. For information on using Okilink II, please refer to the Service Center Reference 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)
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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
NOTICES Pay attention to all notices that appear throughout this training course. They are for your safety! Here are the definitions of the notices. NOTE: This notice refers to supplemental information. CAUTION: Deviation from the listed procedures may result in damage to the product. WARNING: Deviation from the listed procedures may result in personal injury.
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
WHERE TO SEND TESTING MATERIALS Refer to the Okidata Service Center Reference Guide for where to send the test materials. The Okidata Service Center Reference Guide is sent to your dealership along with the Okidata Service Contract materials. It is available from Okidata Dealer Service. It is also available through Okilink II.
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
MISSING ITEMS OR MISSING PAGES Missing Items When you receive the training kit, you MUST verify that the kit contains the items listed on the Read Me First sheet. If any items are missing, please contact Okidata Logistics at the appropriate number listed below. Facsimile Voice 1-609-424-7423 1-800-727-8654
You must provide the following information. - Okidata Authorization Number (Dealer Number) - Okidata Customer Number - Order Acknowledgment Number (on the invoice) - Part Number of kit
Missing Pages If you find that pages are missing from any item in this kit, please contact Okidata Technical Training. Please FAX your request or use Okilink II. Fax Number: (609) 235-2600, ext. 7034 Okilink Login Name: Technical Training You must provide the following information. - Okidata Authorization Number (Dealer Number) - Part Number of document with missing pages - Name of document with missing pages - Page numbers of missing pages If it is the Service Handbook, be sure to specify the section (i, 1, 2, 3, 4, a, or b). Your facsimile number (with area code) 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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
COURSE PATH Course Administration directs you through the training package. Each section covers a different part of the training. Tasks within each section direct you to the portions of the training materials that cover the subject you are studying. When you have completed one section, move on to the next. You must achieve a score of 80% or greater on your Certification Test to successfully complete this course. You must return your completed Certification Test Answer Sheet and Course Critique to Okidata within 30 days after the kit is received by your Dealership. If multiple technicians are training at your Dealership, only one technician must complete the testing during the 30 days. DO NOT STAPLE THE ANSWER SHEET TO THE COURSE CRITIQUE! Be sure to make a copy of the Answer Sheet for your records. Your Answer Sheet will be corrected within two days after it is received by Okidata. If you achieve a score of 80% or higher, you will receive a Certificate of Training. The Dealership you work for will become an Authorized Service Center for the products covered in this training package. Service Authorization is approved once Okidata processes the Answer Sheet. The Certificate of Training will be mailed to you after the Answer Sheet is corrected. You and your Dealership are responsible for returning the Answer Sheet and Course Critique within 30 days after receiving the training kit. Okidata strongly urges you to keep track of the date you return your Answer Sheet and Course Critique. Certification and Authorization are processed within two days after Okidata receives the testing materials. A certificate for successful completion of the training program will be sent to you within 21 days. If authorization is not updated within two days or a certificate received within 21 days, contact Okidata Dealer Service. Proceed through each section and perform the assigned tasks.
Learn from the Course and Good Luck!
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
SERVICE TRAINING Requirements You will need the following items. - Service Handbook - Printer Handbook - Printer Handbook Supplement Service Training is divided into the following six sections. - General Description - Installation - Principles of Operation - Failure Analysis - Appendices - Maintenance - Disassembly/Assembly - Adjustments and Service Checks - Cleaning - Lubrication - Shipping Instructions 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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
General Description This section describes the features and specifications of the printer.
Assigned Tasks - Read Section 1( ) of the Service Handbook. - Read the Introduction and Appendix C in the Printer Handbook. - Read Chapters 1 and 2 in the Printer Handbook Supplement.
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Installation In this section, you will install the printer. You will also perform various tests. Assigned Tasks - Read Chapters 1, 2, 3, 4, 5, 6, 7, and 8 and Appendices A, B, and D in the Printer Handbook. - Read Chapters 3, 4, 5, and 6 and Appendices A and B in the Printer Handbook Supplement. - If a product is available, perform the tests listed below. Refer to Chapter 4 in the Printer Handbook or Section 4 of the Service Handbook. - Demo Page - Font Page - Menu 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)
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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Principles of Operation This section describes the function of the major assemblies from an electrical and mechanical perspective. Assigned Tasks - Read Section 2 ( )of the Service Handbook.
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Failure Analysis This section covers the methods used to identify and correct problems with the unit. Assigned Tasks - Read Chapters 9 and 10 in the Printer Handbook. - Read Section 4 ( ) of the Service Handbook. - Study the Board Diagrams Appendix A ( ) of the Service Handbook. - Check Okilink II for additional troubleshooting 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)
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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Appendices A and B These sections contain charts, illustrations, and an illustrated parts list to support you in servicing the printer. Appendix A Appendix A contains information about the printed circuit boards (PCBs). This appendix includes reference charts which present data regarding function, firmware, fuses, jumpers, switches, sensors, and test points. An illustration of each board is also included. Appendix B Appendix B is an illustrated listing of the parts for the printer. This listing is cross-referenced to Section 3 of the Service Handbook. Assigned Tasks - Look through Appendix A (
) and Appendix B (
) in the Service Handbook.
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Maintenance The Maintenance Section is divided into five sub-sections. - Disassembly / Assembly - Adjustments and Service Checks - Cleaning - Lubrication - Packing for Shipment
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Disassembly / Assembly
CAUTION: OKIDATA does not recommend performing the disassembly / assembly procedures on a product which is operating normally. Therefore, you are not required to perform the disassembly / assembly procedures to complete this training.
Assigned Tasks - Read Section 3.2 of the Service Handbook.( )
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Adjustments and Service Checks This section explains the adjustments performed after parts replacement. Hardware replacement may require adjustments to firmware settings. This section also explains viewing and resetting counters. Assigned Tasks - Read Section 3.3 ( ) of the Service Handbook. - If you have the product available, perform the adjustments and service checks listed in Section 3.3 ( ) of the Service Handbook. 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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Cleaning Assigned Tasks - Read Section 3.4 ( ) of the Service Handbook. - Review Chapter 9 in the Printer Handbook. - Perform the cleaning procedures ( ) on the printer (if available). 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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Lubrication Assigned Tasks - Read Section 3.5 ( ) of the Service Handbook.
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Shipping Instructions Assigned Tasks - Read Section 3.6 ( ) of the Service Handbook.
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
SERVICE AUTHORIZATION General Information Read through the instructions for completing the testing process before you begin. This section contains the Answer Sheet, Certification Test, and Course Critique for this service training package. These are the only copies of these items you will receive. DO NOT WRITE ON THESE ITEMS! PHOTOCOPY EACH ITEM! Use the photocopies to complete the testing process. Photocopy the Certification Test, Answer Sheet, and Course Critique as required for each technician being trained. The information provided on the Answer Sheet and Course Critique is used to update your Dealership's Okidata service warranty profile and to process your Certificate of Training. The critique information is used to respond to your questions regarding this training package. MAKE YOUR RESPONSES COMPLETE AND LEGIBLE! Feel free to reference the training material as you answer the test questions. Every attempt has been made to test your knowledge of the product and your ability to use the reference materials in this kit. No attempt has been made to write "trick questions". If you have a question about a specific test question or answer, please bring it to the attention of Okidata Technical Training. Refer to the Service Center Reference Guide for information on contacting Okidata Technical Training. In order to improve the quality of future training courses, Okidata welcomes your evaluation of this training program. Please complete the course critique for this training course. Before returning your completed testing materials, photocopy your completed Answer Sheet for your records. DO NOT ATTACH ANYTHING TO THE ANSWER SHEET! Where to Send Your Test Materials Refer to the Okidata Service Center Reference Guide for where to send the test materials. The Okidata Service Center Reference Guide is sent to your dealership along with the Okidata Service Contract materials. It is available from Okidata Dealer Service. It is also available through Okilink II.
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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Certification Test Requirements You must achieve a score of 80% or greater on your Certification Test to successfully complete this course. You will need the items listed below. - Service Handbook - Printer Handbook - Printer Handbook Supplement - #2 Lead Pencil - Assigned Tasks Read all instructions BEFORE completing the testing process. Photocopy the Certification Test and Answer Sheet provided in this kit. Use the photocopies to complete the testing process. Complete the top section of the Answer Sheet. Make your responses legible. Answer the Certification Test Questions by filling in the appropriate circle on the Answer Sheet. Use a Number 2 pencil and completely fill in the selected circle. Make a copy of the completed Answer Sheet for your records. 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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 0A Introduction
Course Critique Requirements You will need the following items. - Your photocopy of the Course Critique - Assigned Tasks - Complete the Course Critique. Return the Answer Sheet and Course Critique to Okidata Dealer Service. 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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 1 Product Specifications
General Information The OL400e, OL410e, and the OL410e/PS are compact Light Emitting Diode (LED) page printers. The printers utilize an LED head for the exposure method. Dry electrophotography is used as the development method. The print resolution is 300 x 300 dots per inch. The OL410e and the OL410e/PS (in PCL Mode) can print at 300 x 1200 dots per inch. The printers have a continuous print speed of up to 4 sheets per minute. All three products include both a Centronics parallel interface and a 9-pin RS232 serial interface as standard features. The OL410e/PS includes an LocalTalk interface, which can only be used in PostScript mode. Theprinters have automatic interface switching capabilities, a power-saving standby mode, free-paper sizing (which allows printing on custom size paper), and graphic compression capabilities (for full-page business graphics). The OL400e utilizes 512 Kbyte of standard Random Access Memory (RAM). An optional expansion memory board can be installed. Up to 4 Mbyte of RAM (in 1 Mbyte increments) can be installed on the expansion board, providing up to 4.5 Mbyte of total RAM in the OL400e. The OL410e utilizes 2 Mbyte of standard Random Access Memory (RAM). The main controller board contains 1 Mbyte of RAM. The standard expanded memory board contains 1 Mbyte. An optional expansion memory board can be installed in place of the standard expanded memory board. The optional board contains 2 Mbyte of RAM. However, up to 4 Mbyte of RAM (in 1 Mbyte increments) can be installed, providing up to 5 Mbyte of total RAM in the OL410e. The OL410e/PS utilizes 2 Mbyte of standard Random Access Memory (RAM). 1 Mbyte is on the main control board. 1 Mbyte is on the PostScript Board. The PostScript board will accept and additional 3 Mbytes of RAM, providing up to 5 Mbyte of total RAM in the OL410e/PS. A universal / letter cassette is included with each printer. Legal, executive, and A4 trays are available. The printers will print on a variety of paper types, labels, and transparencies. 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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 1 Product Specifications
1.2
PRODUCT SPECIFICATIONS
1.2.01 Print Specifications Exposure Method Stationary LED Head Development Method Dry Electrophotography 1.2.02 Print Speed Continuous Print 4 sheets per minute Warm-up Time Approximately 60 seconds with standard memory Approximately 90 seconds with the memory expansion board installed 1.2.03 Print Resolution Standard Printing Mode 300 x 300 dots/inch Enhanced Printing Mode(OL410e and OL410e/PS in HP LaserJet III mode) 300 x 1200 dots/inch (600 dpi Class Printing) 1.2.04 Symbol Sets 40 Symbol Sets 1.2.05 Paper Feed Method Automatic Feed Manual Feed 1.2.06 Paper Delivery Methods Face down Face up 1.2.07 Interface Capabilities OL400e/OL410e Interfaces Centronics Parallel Interface RS232 Serial Interface OL410e/PS Interfaces (with Auto-switching) RS232 Serial Interface Centronics Parallel Interface LocalTalk (PostScript only) 1.2.08 Emulations OL400e HP LaserJet IIP OL410e HP LaserJet III (HP PCL 5)
OL410e/PS HP LaserJet III (HP PCL 5) Adobe PostScript Level 2 NOTE: When operating under the DOS environment, the OL410e/PS supports auto-emulation switching by means of the Oki-Switch software, which is included with the printer.
1.2.09 Available Fonts The OL400e and OL410e printers contain four resident bit mapped typefaces which can be printed in both landscape and portrait orientations. Courier Swiss Line (LN) Printer Dutch The OL410e contains three scalable typefaces, in addition to the four bitmapped typefaces. CG Times Univers Courier The OL410e/PS contains the following fonts. Resident Fonts Adobe PostScript 35 (Type 1 Fonts) 2 (Multiple Master Fonts) - for use with Adobe ATM 3.0 and Adobe Acrobat PCL5 12 Scalable Fonts Bit mapped Fonts/Typefaces 2 Line Printer Fonts USPS Barcode Fonts The OL400e and OL410e use twenty bit mapped fonts from the four typefaces. Courier Courier Courier Courier Courier Courier LN Printer Swiss Swiss Dutch Dutch Dutch Dutch Dutch Dutch Dutch Dutch Dutch Dutch Dutch 10 cpi 10 cpi 10 cpi 12 cpi 12 cpi 12 cpi 16.67 cpi Proportional (B) Proportional (F) Proportional (B) Proportional (B) Proportional (B) Compressed (B) Compressed (B) Compressed (B) Proportional (F) Proportional (F) Proportional (F) Proportional (B) Compressed (B)
Bold Italic Bold Italic Bold Bold Bold Italic Bold Italic Bold Italic
NOTE: cpi = Characters Per 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)
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1.3
PAPER SPECIFICATIONS
CAUTION: All paper (all types) should be designed for xerographic printing. Envelopes, labels, and transparencies should only be fed from the top paper tray or manually. Use the face-up paper ejection path. DO NOT use the optional second paper feed mechanism for these items.
1.3.01 Paper Types Letter Size: 8.5" x 11" (216 mm x 279 mm) Feed: Automatic or Manual Weight Minimum: 16 lbs. (60 g / m2) Maximum: 24 lbs. (90 g / m2) Recommended: 20 lbs. (75 g / m2) Legal Size:8.5" x 13" (216 mm x 330 mm) 8.5" x 14" (216 mm x 356 mm) Feed: Automatic (with optional paper tray) Weight Minimum: 16 lbs. (60 g / m2) Maximum: 24 lbs. (90 g / m2) Recommended: 20 lbs. (75 g / m2) Executive Size: 7.25" x 10.5" (184 mm x 267 mm) Feed: Automatic (with optional paper tray) or Manual Weight Minimum: 16 lbs. (60 g / m2) Maximum: 24 lbs. (90 g / m2) Recommended: 20 lbs. (75 g / m2) A4 Size: 8.27" x 11.69" (210 mm x 297 mm) Feed: Automatic (with optional paper tray) Weight Minimum: 16 lbs. (60 g / m2) Maximum: 24 lbs. (90 g / m2) Recommended: 20 lbs. (75 g / m2)
A5 Size: 5.83 " x 8.27" (148 mm x 210 mm) Feed: Automatic (with optional paper tray) Weight Minimum: 16 lbs. (60 g / m2) Maximum: 24 lbs. (90 g / m2) Recommended: 20 lbs. (75 g / m2) A6 Size: 4.13" x 5.83" (105 mm x 148 mm) Feed: Automatic (with optional paper tray) Weight Minimum: 16 lbs. (60 g / m2) Maximum: 24 lbs. (90 g / m2) Recommended: 20 lbs. (75 g / m2) B6 Size: 7.17" x 10.12" (182 mm x 257 mm) Feed: Automatic (with optional paper tray) Weight Minimum: 16 lbs. (60 g / m2) Maximum: 24 lbs. (90 g / m2) Recommended: 20 lbs. (75 g / m2) Envelope Size Minimum: 3.5" x 7.5" (89 mm x 191 mm) Maximum: 7.2" x 10.1" (183 mm x 257 mm) Feed: Automatic (with optional paper tray) or Manual Weight Minimum: 16 lbs. (60 g / m2) Maximum: 24 lbs. (90 g / m2) Recommended: 20 lbs. (75 g / m2) Labels Manual feed / Face up delivery only Use labels designed specifically for xerographic printing Transparencies Manual feed / Face up delivery only Must be able to withstand the heat of the fusing process 1.3.02 Free Paper Size The Free Paper Size menu feature allows the end user to print on custom size paper without a paper size error. Normally, if the paper is loaded in the paper tray is NOT the same size selected in the software, a PAPER SIZE error will be displayed when a print job is sent. Enabling the Free Paper Size menu
feature will override this operation. Free Paper Size Dimensions Width Size: 3.4" x 8.5" (86.4 mm x 216 mm) Length Size: 5.5" x 14" (140 mm x 355.6 mm) Feed Automatic (with optional paper tray) Manual Weight Minimum: 16 lbs. (60 g / m2) Maximum: 24 lbs. (90 g / m2) Recommended: 20 lbs. (75 g / m2) To enable Free Paper Size, follow this procedure. - Place the printer OFF-LINE. - Press LAST / Paper Size for two seconds. - Press NEXT + repeatedly until FREE is displayed on the operator panel. - Press ENTER to select FREE as the default setting. - Press ON-LINE to exit the menu. - Place the custom size paper stock in Tray 1, the Manual Feed Tray, Tray 2, or the Multi-Purpose Feeder. - Run the print job.
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1.4
PHYSICAL SPECIFICATIONS 1.4.01 Outside Dimensions Width: 12.6 inches (320 mm) Height: 6.3 inches (160 mm) Depth: 14.17 inches (360 mm) 1.4.02 Printer Weight 24 lbs. (11 kg) 1.4.03 LED Array 1.4.03 LED Array Number of LED Elements: 2560
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1.5
POWER REQUIREMENTS 1.5.01 Input Power 120 VAC + 5.5% - 15% 220/240 VAC +/- 10% 1.5.02 Power Consumption Peak Approximately 600 Watts Operation (typical) Approximately 80 Watts Idle Approximately 40 Watts Power Save Approximately 15 Watts
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1.6 ENVIRONMENTAL CONDITIONS 1.6.01 Ambient Temperature Operation 50 to 90 degrees Fahrenheit 10 to 32 degrees Celsius Storage 14 to 110 degrees Fahrenheit -10 to 43 degrees Celsius
1.6.02 Printer Noise Level Operation 50 dBA (A) or less Standby 45 dBA (A) or less 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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1.7
AGENCY APPROVALS
Radio Frequency Interference (RFI) FCC Part 15, Class B Canadian Department of Communications Radio Interference Regulations CDCRIR 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)
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1.8
OPTIONS
1.8.01 Memory Expansion OL400e Expansion RAM Board: contains 1 Mbyte. Can be expanded up to 4.5 Mbyte in 1 Mbyte increments OL410e Expansion RAM Board: Contains 2 Mbyte. Can be expanded up to 5 Mbyte in 1 Mbyte increments OL410e/PS Resident RAM - 2 MByte Optional RAM - 3 MByte (in 1 Mbyte increments) Maximum RAM - 5 Mbyte 1.8.02 Font Cards Bit mapped (OL400e and OL410e) OKIPRO 65 Bar Codes Plus MICRO DOCS Tax Scalable (OL410e and OL410e/PS in PCL5 emulation) Distinctive Documents Perfect Presentations Wordperfect II Scalable 1.8.03 Paper Trays 100 Sheet Letter Tray 100 Sheet Legal Tray
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1.9 Consumables 1.9.01 Image Drum Cartridge Kit Contents Image Drum Cartridge 1.9.02 Toner Cartridge Kit Contents Toner Cartridge LED Lens Cleaner Toxicity No carcinogens are contained. 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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1.10
Memory Specifications
1.10.01 ROM Main Controller Program ROM OL400e 512 Kbyte OL410e 1 Mbyte 1.10.02 RAM OL400e Standard: 512 Kbyte Expansion: Up to 4.5 Mbyte (in 1 Mbyte increments) OL410e Standard: 2 Mbyte (1 Mbyte on the main controller and 1 Mbyte on the expanded memory board) Expansion (on the expansion memory board, which replaces the 1 Mbyte expanded memory board) Up to 5 Mbyte (in 1 Mbyte increments) OL410e/PS Standard - 2 MByte (1 Mbyte on the main controller and 1 Mbyte on the PostScript board) Expansion - 3 MByte (in 1 Mbyte increments) on the PostScript board Maximum RAM - 5 Mbyte 1.10.03 EEPROM NOTE: EEPROM = Electrically Erasable Programmable Read Only Memory Main Controller EEPROM 1024 x 1 bit serial input/output
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1.11 Reliability Specifications 1.11.01 Mean Pages Between Failure (MPBF) Approximately 24,000 pages 1.11.02 Mean Time To Repair (MTTR) Approximately 20 minutes 1.11.03 Estimated Toner Cartridge Life Approximately 2,000 pages at 5% density 1.11.04 Image Drum Life Approximately 20,000 pages: Continuous print at 5% density Approximately 18,000 pages: at 7 pages per print job 1.11.05 Printer Duty Cycle Approximately 6,000 pages per month 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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Chapter 2 Principles of Operation
2.1 PRINTER OVERVIEW 2.1.01 General Information This section describes the operation of the product in the order listed below. Control Process Mechanical Operation Printing Process Sensors and Switches 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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2.2
CONTROL PROCESS
2.2.01 General Information The control process involves regulating the reception of data from the host system interface, receiving data and commands from the host system, and generating bit-image data. The control process also includes sending data and commands to the print engine where the print process is performed. The control process is performed by the following hardware components. Main Controller Board Expanded RAM Board (OL410e ONLY) Expansion RAM Board Option Font Card Option Configuration Diagram
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2.2.02 Block Diagrams OL400e
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2.2.02 Block Diagrams OL410e
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2.2.02 Block Diagrams OL410eps
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2.2.03 Main Controller Board Overview The principal components of the main controller board are listed below. - 16 Mhz Oscillator - ASIC (with a built-in RISC microprocessor) - PROM (contains printer control program) - ROM (contains the bit-mapped fonts) - EEPROM - Dynamic RAM (DRAM) OL400e 512 Kbyte OL410e 1 Mbyte with an additional 1 Mbyte contained on the Expanded RAM Board OL410e 1 Mbyte with an additional 1 Mbyte contained on the PostScript Board Driver Circuitry RS232 Serial Interface Port Centronics Parallel Interface Port Both the print engine functions and the control functions are integrated on the main controller board. Most of the logic needed to perform print engine functions and control functions is integrated internally in the microprocessor. 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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Main Controller Board Functions General Information The functions of the main controller board are listed below. - Reception Control..................................... ( ) - Command Analysis Processing................... ( ) - Font Processing....................................... ( ) - Buffer Read Operation.............................. ( ) - Engine Control......................................... ( ) - Operation Panel Control...................... ( ) - Operation Panel Functions.................. ( ) - Sensor Control......................................... ( ) - Print Operation........................................ ( ) - Electrophotographic Processing Action........ ( ) - LED Array Operation................................. ( ) - Fuser Lamp Operation.............................. ( ) - Registration Motor Operation..................... ( ) - Drum Motor Operation.............................. ( ) - DC Fan Operation 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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Chapter 2 Principles of Operation
Main Controller Board Reception Control As data is received from the host system, the CPU sets the BUSY-P signal to ON and reads the parallel data lines (DATA 1 - DATA 8). The I-PRIME signal (Enable/Disable) of the parallel interface port can be specified through the menu. The serial data from the host system is received by the built-in serial controller of the microprocessor. Both the parallel and serial interface ports can receive data. The port that receives data first will be activated.
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Chapter 2 Principles of Operation
Main Controller Board Command Analysis Processing - The OL400e emulates the HP LaserJet Series IIP. - The OL410e emulates the HP LaserJet Series III. - The OL410e/PS emulates the HP LaserJet Series III and also contains a PostScript (Level 2) Interpreter
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Main Controller Board Font Processing OL400e - Bit mapped fonts are available for the HP LaserJet Series IIP emulation. OL410e - Bit mapped and scalable fonts are available for the HP LaserJet Series III emulation. OL410e/PS - Scalable fonts are available for the HP LaserJet Series III emulation. - PostScript Fonts are contained on the PostScript Board.
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Main Controller Board Buffer Read Operation Bit images written in the raster buffer (registers) are converted to serial data. The contents of the registers are transferred to the engine control section of the microprocessor (MPU) on the main controller board.
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Main Controller Board Engine Control Functions Engine control functions are executed when the CPU receives a print request signal.
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Chapter 2 Principles of Operation
Main Controller Board Operation Panel Control General Information The operation panel consists of the following circuits. - MPU Interface Integrated Circuit - LCD Control Driver - LCD Display - LED - Operation Panel Sheet - Contact Switches (There are eight contact switches). 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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Chapter 2 Principles of Operation
Main Controller Board Operation Panel Functions The operation panel LCD displays the printer's operational status and error messages. The operation panel is also used to modify the printer menu. The operation panel is connected to the main controller board through connector CN1 of the contact switch board and CN5 of the main controller board. The LCD control driver board is connected to the contact switch board. The connector on the contact switch board is CN2, and the connector on the control drive board is CN3. The operation panel is controlled by the CPU of the main controller board. The LSI chip on the contact switch board is connected to a clock-synchronous serial port of the CPU. This port controls the switch data input, LED data output, and LCD data. The CPU sends a 2-byte (16-bit) command to the LSI. Upon receiving a command from the CPU, the LSI returns a 2-byte command response to the CPU. 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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Sensor Control & Location Diagrams General Information There are six sensors in the printer. - Inlet Sensor 1.............. ( ) - Inlet Sensor 2.............. ( ) - Inlet Sensor 3.............. ( ) - Outlet Sensor.............. ( ) - Paper Supply Sensor.... - Toner Sensor.............. ( )
(also known as the Paper Sensor)
( )
The same part is used in three locations for the three inlet sensors.
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Inlet Sensor 1 Inlet sensor 1 detects the leading edge of the paper and regulates the timing of switching from the hopping operation to the feeding operation. This sensor also controls the timing of the paper feed process and the paper size according to the paper detection time and running time. Refer to Sensor Diagram ( ) for exact location.
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Inlet Sensor 2 Inlet sensor 2 detects the form width. Refer to Sensor Diagram ( ) for exact location.
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Inlet Sensor 3 / Paper Sensor Inlet sensor 3 detects the leading edge of the paper and controls the timing of the paper feed process. This sensor is also referred to as the paper sensor. Refer to Sensor Diagram ( ) for exact location.
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Outlet Sensor The outlet sensor controls the paper feed and size based on the time the sensor detects the paper and the time of passage of the paper. Refer to Sensor Diagram ( ) for exact location.
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Paper Supply Sensor The paper end sensor detects an out-of-paper condition. Refer to Sensor Diagram ( ) for exact location.
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Toner Sensor The toner sensor detects a low-toner condition. Refer to Sensor Diagram ( ) for exact location.
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Print Operation Both the control function (data reception and bit-image data generation) and the print engine function (LED head, registration motor, and drum motor) are integrated. Both functions are controlled by the main controller board. The peripheral logic is integrated into one chip, an ASIC microcomputer (RISC-based microprocessor) chip. Data is received through either the Centronics parallel interface or the RS232 serial interface. These two interfaces are located on the main control board. The LocalTalk interface is located on the PostScript Board. The data is then stored in the receive buffer. The data is transferred from the receive buffer to a processing section of the main controller. In this processing section, control codes and printing codes are assigned. Once the font is determined, the data is written to the page buffer. The microprocessor then executes the print routine. The data is extracted from the page buffer, synchronized to the printing operation, and written to the band buffer. While performing the engine functions, the microprocessor sends the data from the band buffer to the LED array head.
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2.2.04 Expanded RAM Board(OL410e Only) The expanded RAM board contains 1 Mbyte of RAM and along with the 1 Mbyte of RAM on the main controller board, increases the standard RAM capacity to 2 Mbyte. The RAM capacity is identified during power-ON. It can be verified by requesting a MENU PRINT operation. 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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2.2.05 Expansion RAM Board(OL400e) The expansion RAM board can contain up to 4 Mbyte of RAM in 1 Mbyte increments. This board can increase the OL400e RAM capacity up to 4.5 Mbyte. The RAM capacity is identified during power-ON. It can be verified by requesting a MENU PRINT operation. 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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2.2.06 Expansion RAM Board(OL410e) The expansion RAM board is an option installed in place of the expanded RAM board. This board can contain up to 4 Mbyte of RAM in 1 Mbyte increments. This board can increase the OL410e RAM capacity up to 5 Megabyte. The RAM capacity is identified during power-ON. It can be verified by requesting a MENU PRINT operation. 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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2.2.07 Font Cards An optional font card can be used with the printer. The printer must be OFF-LINE (the READY lamp is OFF) when the card is either inserted or removed. If the font card is inserted or removed while the printer is ON-LINE (the READY lamp is ON), a CARD REMOVED ON-LINE message will appear on the operator panel display. 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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2.2.08 PostScript Board The PostScript Board contains the LocalTalk interface, a program ROM and Font Rom (2 MB each), 1 MByte of Dynamic RAM, and a 4 KBit EEPROM. Sockets are provided for an additional 3 Mbyte of DRAM.
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2.3.01 Basic Principals - Electrostatic Printing A -1.3 Kvdc charge is placed on the charge roller. The charge roller is in direct contact with the surface of the image drum. The printer engine section enables the LED array in conformance with the data received from the host via the interface on the main controller board. Once the charged drum is exposed to this light, an electrostatic image is formed on the drum surface. This latent image is developed with toner.
Charging The surface of the image drum is uniformly negatively charged by the application of a negative charge to the charge roller. Exposure Light emitted from the LED head irradiates the negatively charged surface of the image drum. The electrostatic potential of the irradiated part of the image drum surface is lowered, so that an electrostatic latent image associated with the print image is formed.
Developing When the negatively charged toner is brought into contact with the image drum surface, it is attracted to the electrostatic latent image by static electricity, making the latent image visible. At the same time, the residual toner on the image drum is attracted to the developing roller by static electricity. Transfer Paper is placed over the image drum surface. A positive charge (opposite in polarity to the toner) is applied to the reverse side of the paper by the transfer roller. The toner is attracted by the positive charge. The image formed on the image drum is transferred to the paper. Cleaning The toner remaining on the image drum after transfer is temporarily attracted to the cleaning roller by static electricity. This residual toner is accumulated in the image drum cartridge until the drum is replaced. Fusing The toner image transferred to the paper is fused to the paper by heat and pressure. 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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2.3.02 Engine Functions The engine control section of the microprocessor on the main controller board enables the fuser lamp and activates the preliminary print circuits. Upon completion of the preliminary print functions, the engine control section enables the LED array in conformance with the signals received from the host, and commands output from the control section of the CPU. The LED illuminates, leaving a latent image on the photosensitive drum. The engine control section also controls paper feed, paper transfer and the electrophotographic printing process.
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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 2 Principles of Operation
2.3.03 EEPROM Operation The 1024 x 1 bit Electrically Erasable Programmable Read-Only-Memory (EEPROM) is loaded with the data listed below. - Menu Data - Various Counter Data - LED Head Drive Time - Print Start Position - Paper Feed Duration 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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 2 Principles of Operation
2.3.04 Power Supply Board The power supply board consists of an AC filter circuit, a low-voltage power supply circuit, a high-voltage power supply circuit, a fuser drive circuit and photosensors. Low-Voltage Power Supply Circuit The following voltages are generated by the low-voltage power supply circuit. + 5 vdc: Logic circuit supply voltage + 38 vdc: Motor / fan drive voltage and source voltage for the high-voltage supply + 8 vdc: RS232 line voltage - 8 vdc: RS232 line voltage and analog circuit voltage High-Voltage Power Supply Circuit This circuit uses the + 38 vdc to generate voltages for the electrophotographic process. The control sequence for enabling these voltages is issued by the main controller board. When the cover-open state is detected, the + 38 vdc is turned off. Turning the +38 vdc off disables all high-voltage outputs. The high-voltage power circuit generates the voltages listed below. - 1.3 Kvdc: applied to the charging roller - 300 vdc: applied to the developing roller - 450 vdc: applied to the toner supply roller + 1.6 Kvdc: applied to the transfer roller + 500 vdc: applied to the cleaning roller 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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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 2 Principles of Operation
2.3.05 Fusing Unit The fusing unit consists of a halogen lamp, a fusing roller, a thermistor and a thermostat. An AC voltage from the power supply board is applied to the halogen lamp under the control of the HEAT ON signal from the main controller board. This AC voltage is applied to the 400 watt halogen lamp. The main controller board controls the fusing roller temperature via the thermistor, and regulates the fusing roller temperature at 150 degrees Celsius by switching the lamp ON/OFF. If the roller temperature rises abnormally, the thermostat in the fusing unit will cut the AC voltage supply 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)
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Service Manual for OL400e/OL410e/OL410e-PS
Chapter 2 Principles of Operation
2.3.06 Registration Motor The registration motor is a DC stepping motor (48 steps/rotation). This motor drives the hopping roller and the registration roller via two one-way clutches. The direction that th