Canon iR2800i Manual de servicio - Página 5

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Contents

CHAPTER 1 GENERAL DESCRIPTION

Specifications ................................. 1-1S

1.1 Main Body ............................... 1-1S

1.1.1

1.1.2

1.1.3

1.1.4

1.2 Side Paper Deck-L1 ................. 1-8S

Names of Parts ............................... 1-9S

2.1 External View ........................... 1-9S

2.2 Cross Section ......................... 1-11S

System Configuration .................. 1-13S

3.1 Functional Construction ........ 1-13S

CHAPTER 2 MAIN CONTROLLER

Basic Construction ......................... 2-1S

1.1 Functional Construction .......... 2-1S

1.2 Outline of the Electrical

1.2.1

1.2.2

1.2.3

1.3 Start-Up Sequence .................... 2-4S

1.3.1

1.3.2

Digital Image Processing ................ 2-7S

2.1 Outline ...................................... 2-7S

2.2 Input Image Processing ............ 2-8S

2.2.1

2.2.2

2.2.3

2.2.4

2.2.5

fineline6

Type ................................... 1-1S

Systems .............................. 1-1S

Functions ........................... 1-2S

Others ................................ 1-5S

Circuitry ................................... 2-2S

Outline ............................... 2-2S

Main Controller PCB ......... 2-2S

HDD .................................. 2-2S

Outline ............................... 2-4S

Start-Up Sequence ............. 2-5S

Image Data from the

Reader Unit ........................ 2-8S

Enlargement/Reduction

(main scanning direction) ... 2-8S

Edge Emphasis ................... 2-8S

Editing ................................ 2-8S

Density Conversion

(LUT) ................................. 2-8S

3.2 Outline of the Electrical

Circuitry ................................. 1-14S

3.2.1

Construction of the

Electrical Circuit ............... 1-14S

3.3 Inputs to and Outputs from

the Major PCBs ...................... 1-15S

3.3.1

Wiring Diagram of the

Major PCBs ..................... 1-15S

3.4 Configuration with

Accessories ............................ 1-17S

3.4.1

Accessories for Original/

Paper Feeding .................. 1-17S

3.4.2

Accessory Boards ............ 1-18S

2.2.6

Binary Processing (error

diffusion method T-BIC) .... 2-9S

2.2.7

Binary (dither screen

method) .............................. 2-9S

2.3 Image Memory Control ............ 2-9S

2.3.1

Compression/De-Compression,

Rotation, and Enlargement/

Reduction ........................... 2-9S

2.3.2

SDRAM ............................ 2-9S

2.3.3

HDD .................................. 2-9S

2.4 Output Image Processing ....... 2-10S

2.4.1

Smoothing ........................ 2-10S

2.4.2

Binary-Binary Density

Conversion (read image

output only) ...................... 2-10S

Soft Counters ................................ 2-11S

Controlling the Power Supply ...... 2-15S

4.1 Outline .................................... 2-15S

4.2 Power Supply Modes ............. 2-15S

4.3 Standby Mode

(normal operation) .................. 2-15S

4.4 Sleep Mode 1 ......................... 2-15S

CANON iR2200/iR2800/iR3300 REV.1 JAN. 2002

CONTENTS

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