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Now downloading free:oki oki ml320

oki oki ml320 free download

Service manuals and repair information about laser, dot matrix, label printer and ink jet printers of different makes: HP, Canon, Epson, Ricoh, Star, Xerox, Okidata

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File name:OKI ML320 ML321 Turbo.pdf
[preview oki ml320]
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Model:oki ml320 🔎
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Group:Electronics > Computer equipment > Printers
Uploaded:18-11-2010
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File name OKI ML320 ML321 Turbo.pdf

Page: 1 Service Guide ML320/321Turbo Chapter 0 About This Manual ML320 Turbo // ML321 Turbo Dot Matrix Printers Adobe Acrobat printable reference copy of the OKIDATA Service Training Manual. 09/17/97 Note: This Adobe Acrobat version of the Okidata Service Training Manual was built with the pictures rendered at 300 dpi, which is ideal for printing, but does not view on most displays well. Okidata is a registered trademark, and OkiPage is a trademark of Oki Electric Industry Co., Ltd. HP, LaserJet and PCL5e are trademarks of Hewlett-Packard Co. Adobe and Acrobat are trademarks of Adobe Systems Incorporated. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com) Table of Contents Page Service Guide ML320/321Turbo 0 About This Manual Front Cover 1 Configuration 1.1. Standard Printer Configuration 1.2 Options 2 Operation Description ...2.1.1 Summary ...2.1.2 Microprocessor and the Peripheral Circuit ...2.1.3 Initialization ...2.1.4 Parallel Interface Control ...2.1.5 Print Control ...2.1.6 SP/LF Motor Control ...2.1.7 Operation Panel ...2.1.8 Alarm Circuit ...2.1.9 Power Supply Circuit 2.2 Mechanical Operation ...2.2.2 Spacing Operation (See Figure 2-4.) ...2.2.3 Head Gap Adjusting (See Figure 2-5.) ...2.2.4 Ribbon Drive (See Figure 2-6.) ...2.2.5 Paper Feed Operation ...2.2.6 Paper Detection Mechanism (See Figure 2-15.) ...2.2.7 Automatic Sheet Feed ...2.2.8 Paper Park Function (Continuous sheet paper) 3 Parts Replacement 3. ASSEMBLY/DISASSEMBLY 3.1 Precautions for Parts Replacement 3.2 Service Tools 3.3 Disassembly/Reassembly Procedure ...3.3.1 Printhead ...3.3.2 Ribbon Protector ...3.3.3 Pull-up Roller Assy ...3.3.4 Upper Cover, Access and Sheet Guide Assy ...3.3.5 Gear Case Assy ...3.3.6 PC Connector ...3.3.7 Space Motor, Guide Roller Assy ...3.3.8 Space Rack ...3.3.9 Carriage Cable ...3.3.10 Backup Roller Holder Assy ...3.3.11 Platen Assy ...3.3.12 Driver Board (SDDV) ...3.3.13 LF Motor ...3.3.14 Operation Panel PCB (LEOP) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 Table of Contents ...3.3.15 Control/Power Supply Board (SDCT) ...3.3.16 Transformer Assy ...3.3.17 Change Lever and Gears ...3.3.18 Carriage Shaft ...3.3.19 Paper Pan ...3.3.20 Rear Tractor Assy ...3.3.21 Rear Pressure Assy ...3.3.22 Switch Lever 4 Adjustments 4. ADJUSTMENT 5 Periodical Maintenance 5.1 Cleaning 5.2 Lubrication 6 Troubleshooting 6.1 Items to Check Before Repair 6.2 Troubleshooting Table 6.3 Lamp Display 6.4 Connection Circuit Check for Printhead and SP/LF Motor 6.5 Troubleshooting Flow Chart A Centronics Parallel Interface A. PCB LAYOUT B Parts Listing Parts Listing Figure 11-1 Upper Cover Assy Figure 11-2 Printer General Assy Figure 11-3 Printer Unit Figure 11-4 Carriage Assy Figure 11-5 Option Spare Parts C Software Diagnostics and Adju

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