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Table of ContentsPage
Service Guide DOC-IT3000/4000
0 About This Manual
Front Cover1
Manual Revision & Copyright Information2
1 Product Specifications
1.0 General Description3
1.1 General Specifications4
1.2 DOC-IT Controller Specifications5
1.3 Printer Specifications6
1.4 Facsimile Specifications7
1.5 Scanner Specifications8
1.6 Copier Specifications9
1.7 Options10
1.8 Consumables11
1.9 Reliability Data12
1.10 Agency Approvals13
2 Principles of Operation
2.1 Electrical Principles Of Operation14
....2.1.01 Main Control Board15
........CPU (80C154)16
........Memory Map (on Master CPU Side)17
........Address Decoder18
........Program ROM19
........RAM20
........WRITE 1 Waveforms (OE Clock)21
........Image Control LSI22
........Memory Configuration23
........External RAM Access24
........Scanner Control LSI25
........Line Memory Read/Write Waveforms26
........Peripheral Interface Controller27
........Operator Panel28
........Serial Video Interface29
........Image Sensor Control Board30
2.2 Printer Control - Principal Hardware Components31
This document may not be reproduced without 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 our control.
Electric Industry Company, Ltd.; Marca Registrada, Oki Electric Industry Company, Ltd.
DOC-IT is a trademark of Oki Electric Industry Company, Ltd.
Apple, AppleTalk, LaserWriter, LaserWriter II, LocalTalk, and Macintosh, are registered
trademarks of Apple Computer, Incorporated.
Page: 2
Microsoft and MS-DOS are registered trademarks and Microsoft Basic, Windows, TrueImage, and
TrueType are trademarks of Microsoft Corporation.
Hewlett-Packard, HP, LaserJet, LaserJet+, LaserJet Series II, LaserJet IIIp, and ScanJet are
registered trademarks of Hewlett-Packard Company.
IBM, PC, PC-DOS, and Proprinter XL are registered trademarks of International Business
Machines Corporation.
Intel is a trademark of Intel Corportation.
Okiport is a trademark of Oki Electric Industry Company, Ltd.
PostScript is a trademark of Adobe Systems, Incorporated, which may be registered in certain
jurisdictions.
Copyright 1997, Okidata, Division 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: 3
Service Guide DOC-IT3000/4000
Chapter 1 Product Specifications
1.0 GENERAL DESCRIPTION
Designed for DOS and WINDOWS based personal computers, DOC-IT is a software controlled desktop
document processor. It integrates four key office functions: printing, faxing, scanning and copying into a
desktop system. This Desktop Document Processor is controlled by a PC-based graphical user interface
and software manager, called DOC-IT Manager. From the desktop, users can print documents, scan and
edit images, send and receive faxes (either electronically or in plain paper form) and make copies. These
tasks can take place while the user is running other applications.
The DOC-IT System is comprised of three major units:
· The DOC-IT Desktop Document Processor (DDP)
- The DOC-IT DDP houses an automatic document feed scanner (which also can
be used as a hand-held device), Okidatas innovative Light Emitting Diode
(LED)-based presentation quality print mechanism used for printing and copying,
and an easy to use Operator Control Panel.
- DOC-IT is available in two versions. DOC-IT 3000 provides presentation quality
printing (300 dpi) to meet the text and image printing needs of most offices.
DOC-IT 4000 supports an even higher quality level of printing (400 dpi).
- The DOC-IT Controller
- The DOC-IT Controller is a single PC add-in board that features a powerful Intel
32-bit i960 reduced instruction set computing (RISC) microprocessor. The DOC-IT
Controller, which requires a full-sized 16-bit Industry Standard Architecture (ISA)
slot, manages all functions in real time: scanning, faxing, printing and copying.
DOC-IT software and printer emulators are stored on the PC hard disk and
downloaded to the DOC-IT Controller as required. As a result, system functions
can be upgraded via software and easily downloaded without affecting hardware
requirements.
· DOC-IT Manager
- DOC-IT Manager is a Windows-based graphical user interface and software
manager that enables users to easily access and manage multiple functions
through pull-down menus, dialog boxes and icons. Users can access and
manage all scanning, printing and faxing functions via DOC-IT Manager.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Service Guide DOC-IT3000/4000
Chapter 1 Product Specifications
1.1 GENERAL SPECIFICATIONS
1.1.01 Physical Dimensions
· Width
- 17.75 inches (Approximately 450mm)
· Depth
- 16.9 inches (Approximately 430mm )
· Height
- 7.1 inches (Approximately 180mm)
· Weight
- 36 lbs. (Approximately 15kg)
1.1.02 Ambient Temperature and Relative Humidity (RH)
Page: 4
· While Operating:
- 50° to 89° F
- 10° to 32° C
- 20 to 80% RH
· While in Storage
- 14° to 122° F
- -10° to 50° C
1.1.03 Acoustic Rating
· During Operation
- Less than 50 dB
· At Standby
- Less than 45 dB
1.1.04 Power Requirement
· 115 vac (103 vac to 127 vac)
1.1.05 Power Consumption
· 800 W Maximum
1.1.06 LCD Display
· 2-line by 16 digit display
1.1.07 Automatic Document Feeder
· Maximum 25 sheets of 8.5 x 11 inch, 20 lb. bond paper
Note:
Documents must be placed face up on the Automatic Document Feeder (ADF) Tray.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
1.2 DOC-IT CONTROLLER SPECIFICATIONS
1.2.01 Processor Type
· INTEL i80960KB RISC Processor
1.2.02 Processor Speed
· DOC-IT 3000: 16 Mhz
· DOC-IT 4000: 20 Mhz
1.2.03 Memory
Note: All memory is 80 nanoseconds / Zero Wait State
· DOC-IT 3000
5 MB Standard
Expandable to 7 MB in 1MB increments
· DOC-IT 4000
7 MB Standard
Page: 5
Service Guide DOC-IT3000/4000
Chapter 1 Product Specifications
1.2.04 Computer Interface
· IBM PC/AT bus
1.2.05 DOC-IT Interface
· Video Interface
Printer Scanner Copier
· Asynchronous Serial Interface (9600 bps)
Facsimile
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
All items must be able to withstand the heat (150° F) of the fusing process.
FACE-UP rear delivery is recommended for envelopes and labels.
1.3.06 Print Resolution
· DOC-IT 3000
- 300 x 300 dots per inch
· DOC-IT 4000
- 400 x 400 dots per inch
1.3.07 Maximum Printing Width
· 7.98 inches (approximately 200mm)
1.3.08 Paper Cassette Capacity
· First Cassette
- 200 sheets
· Second Cassette (Requires the installation of an optional Second Paper Feed Unit)
- 200 sheets
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
1.4 FACSIMILE SPECIFICATIONS
1.4.01 Compatibility
· CCITT Group 3 ONLY
1.4.02 Telephone Line Requirement
· PSTN (Public Switched Telephone Network)
1.4.03 Communication Mode
· Half Duplex
1.4.04 Protocol
· CCITT Rec.T.30
1.4.05 Coding Schemes
· Modified Huffman (MH)
Page: 7
Service Guide DOC-IT3000/4000
Chapter 1 Product Specifications
1.4.06 Error Correction
· CCITT Error Correction Mode (ECM)
1.4.07 High Speed Modem
· CCITT Rev. V.29 (9600/7200bps)
· CCITT Rev. V.27 (4800/2400bps)
1.4.08 Low Speed Modem
· CCITT Rev. V.21 channel 2 (300bps)
1.4.09 Transmission Time
· 10 seconds (CCITT No.1 sample document at 9600bps)
1.4.10 Transmit Resolution
· Normal
- 200 x 100 dots per inch
· Fine
- 200 x 200 dots per inch
· DOC-IT 3000
- 400 x 400 dots per inch
Note:
Although DOC-IT 3000 transmission occurs at 400 dpi, printed output is 300 x 300
dots per inch.
· DOC-IT 4000
- 400 x 400 dots per inch
1.4.11 Photo/Halftone Transmit Methods
· Line Art
· Error Diffusion
· Gray Scale with Course Fatting Dither
· Gray Scale with Fatting Dither
· Gray Scale with Bayer Dither
· Gray Scale with Vertical Line Dither
1.4.12 Ringer Equivalence Number
· 0.68
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Service Guide DOC-IT3000/4000
1.5 SCANNER SPECIFICATIONS
1.5.01 Scanning Device
· 4,096 bit Charge Coupled Device (CCD)
1.5.02 Scanning Method
· Automatic Document Feeder (ADF)
· Handheld
1.5.03 Scanning Speed
· ADF: 4.4 seconds for a letter size sheet
1.5.04 Effective Reading Width
· Maximum: 10 inches (approximately 254 mm)
1.5.05 Scanning Resolution (Software Selectable)
· 200 x 200 dots per inch
· 300 x 300 dots per inch
· 400 x 400 dots per inch
Page: 8
Chapter 1 Product Specifications
1.5.06 Photo/Halftone Scanning Methods
· Line Art
· Error Diffusion
· Gray Scale with Course Fatting Dither
· Gray Scale with Fatting Dither
· Gray Scale with Bayer Dither
· Gray Scale with Vertical Line Dither
1.5.07 Special Scanning Effects
· Inverse Image
- Produces a "negative" of the scanned image
· Mirror Image
1.5.08 Scanned File Format
· Tag Image File (TIF/CCITT G3))
1.5.09 Image File Conversions
· Original File Formats
- TIF: Tag Image File
- PCX: ZSoft Image File
- BMP: WINDOWS Image File
- FAX: Class F TIFF
· Converted File Formats
- TIF: Uncompressed (TIFF)
- TIF: Packbits (TIFF)
- TIF: CCITT G3 (DOC-IT)
- FAX: Class F (TIFF)
- PCX: ZSoft Image File
- IMG: Digital Research (GEM) Image File
- BMP: WINDOWS Image File
- TIF: 16 Level Gray Scale
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
1.6 COPIER SPECIFICATIONS
1.6.01 Number of Copies
· From 1 to 99
1.6.02 Types of Original
· Normal
· Text
· Photo
1.6.03 Copy Methods
· Normal Copy
- The page placed on the ADF Tray is reproduced.
· 2-Up Copy
- Two pages from the ADF Tray are scanned, reduced, then reproduced (side by side) on
one sheet of paper.
Page: 9
Service Guide DOC-IT3000/4000
Chapter 1 Product Specifications
· Merge Copy
- Multiple pages placed on the ADF Tray are scanned and stored in memory. The
operator is then directed to LOAD ADF PAPER OR PRESS STOP TO FINISH.
The stored images are then merged and reproduced (actual size) on a single sheet of
paper.
1.6.04 Copier Resolution
· DOC-IT 3000
- 300 dots per inch
· DOC-IT 4000
- 400 dots 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)
1.7 OPTIONS
1.7.01 Memory
· Additional memory can be installed on the DOC-IT Controller for the purpose of:
- Providing additional emulation capability
- Complex image requirements
1.7.02 Paper Trays
· Letter
· Legal
· Executive
· Envelope
· A4
· Universal
1.7.03 Second Paper Feed Unit
· The Second Paper Feed Unit is a mechanism which provides the DOC-IT Operator the
capability to install an additional paper tray. An additional paper tray is NOT included with
the feed unit. It must be purchased separately.
Page: 10
Service Guide DOC-IT3000/4000
Chapter 1 Product Specifications
1.7.04 Printer Emulations
· Refer to Section 1.3.02 for available emulations
Copyright 1997, Okidata, Division 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
Service Guide DOC-IT3000/4000
Chapter 1 Product Specifications
1.8 CONSUMABLES
· Toner Cartridge Kit
- Toner Cartridge
- Fuser Cleaner Pad
- LED Lens Cleaner Pad
· Image Drum Cartridge Kit
- Image Drum
- Ozone Filter
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Service Guide DOC-IT3000/4000
1.9 RELIABILITY DATA
1.9.01 Automatic Document Feeder Jam Rate
· Approximately one for every 500 operations
1.9.02 Lithium Battery Life (Menu Data)
· Approximately 5 years
1.9.03 Image Drum Life
· One Page Print Jobs
Approximately 7,500 pages
· Multiple Page Print Jobs
Approximately 15,000 pages
1.9.04 Toner Cartridge Life
· First Toner Cartridge placed in an Image Drum Assembly
Approximately 1,500 pages
· Replacement Toner Cartridge
Approximately 2,500 pages
Page: 12
Chapter 1 Product Specifications
1.9.05 Fuser Cleaner Pad Life
· Approximately 2,500 pages
1.9.06 Estimated Fuser Life
· Approximately 180,000 pages
1.9.07 Mean Time Between Failure (MTBF)
· Approximately 17,250 hours
1.9.08 Mean Time To Repair (MTTR)
· Approximately 30 minutes
Copyright 1997, Okidata, Division 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
Service Guide DOC-IT3000/4000
Chapter 1 Product Specifications
1.10 AGENCY APPROVALS
· Safety
- UL1950, version 3
- CSA C 22.2, NO.950
· Electro-Magnetic Interference (EMI)
- FCC Part 15, Class B
· Communication
- FCC Part 68
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page: 14
Service Guide DOC-IT3000/4000
Chapter 2 Principles of Operation
2.1 ELECTRICAL PRINCIPLES OF OPERATION
{doclinks}
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Service Guide DOC-IT3000/4000
Chapter 2 Principles of Operation
2.1.01 Main Control Board
The main control board controls reception of the data through a host I/F, processes command
analysis, controls the scanner unit, outputs data, and controls the operation panel.
The hardware configuration of the main control board is as follows.
CPU (80C154)
- The CPU 80C154 is a one chip controller linked to many CPU peripheral units. The
Controller uses an INT Timer
- Interrupt Controller: INT0 and INT1 are used to request an interrupt. The interrupt
Controller has been programmed so that proper processing is selected when a signal is
input according to an internal table of the CPU.
Page: 15
Memory Map
The memory layout of the Doc-It Engine is shown below.
(on Master CPU Side)
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Service Guide DOC-IT3000/4000
Chapter 2 Principles of Operation
CPU (80C154)
- The CPU 80C154 is a one chip controller linked to many CPU peripheral units. The
Controller uses an INT Timer
- Interrupt Controller: INT0 and INT1 are used to request an interrupt. The interrupt
Controller has been programmed so that proper processing is selected
when a signal is input according to an internal table of the CPU.
Page: 16
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Service Guide DOC-IT3000/4000
Chapter 2 Principles of Operation
Memory Map
The memory layout of the Doc-It Engine is shown below.
(on Master CPU Side)
Page: 17
Copyright 1997, Okidata, Division 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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