Fujitsu M3097G User Manual

M3097G

IMAGE SCANNER

50FH5043E>02

OEM MANUAL

REVISION RECORD

Edition

01 Apr., 1993

02 Feb., 1996 Gray scale added

Date published Revised contents

Specification No.: 50FH5043E

The contents of this manual is subject to change
without prior notice.

All Rights Reserved,
Copyright ” 1993, 1996 FUJITSU LIMITED

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This page is intentionally left blank.

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CONTENTS

page

CHAPTER 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 $ 1

1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 $ 1

1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 $ 3

1.3 Part Names and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 $ 4

1.3.1 Exterior view of image scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 $ 4

1.3.2 Functions of each part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 $ 5

CHAPTER 2 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 $ 1

2.1 Function Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 $ 1

2.2 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 $ 3

2.3 Optional Circuit Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 $ 4

2.3.1 Image processing circuit ¬ (IPC ¬) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 $ 4

2.3.1.1 Dynamic threshold function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 $ 4

2.3.1.2 Image processing function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 $ 5

CHAPTER 3 CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 $ 1

3.1 Outer Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 $ 1

3.2 Circuit Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 $ 3

3.3 Operator panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 $ 4

CHAPTER 4 INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 1

4.1 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 3

4.2 SCSI Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 6

4.2.1 System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 6

4.2.2 Bus signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 7

4.2.3 Bus signal drive conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 8

4.3 Bus Phases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 9

4.3.1 BUS FREE phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 12

4.3.2 ARBITRATION phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 13

4.3.3 SELECTION phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 15

4.3.4 RESELECTION phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 16

4.3.5 INFORMATION TRANSFER phases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 17

iii

4.4 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 20

4.4.1 RESERVE UNIT command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 22

4.4.2 RELEASE UNIT command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 24

4.4.3 INQUIRY command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 25

4.4.4 REQUEST SENSE command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 29

4.4.5 SEND DIAGNOSTIC command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 34

4.4.6 TEST UNIT READY command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 36

4.4.7 SET WINDOW command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 37

4.4.8 SET SUBWINDOW command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 56

4.4.9 OBJECT POSITION command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 64

4.4.10 SEND command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 68

4.4.11 READ command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 73

4.4.12 MODE SELECT (6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 79

4.4.13 MODE SENSE (6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 84

4.5 Status: STATUS phase (target Æ initiator) . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 88

4.6 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 89

4.6.1 ATN detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 89

4.6.2 Message types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 89

4.7 Command Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 97

4.7.1 Initial sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 97

4.7.2 Command sequence to read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 98

4.7.3 READ command sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 99

4.7.3.1 Single READ (without CMP II option: disconnect disabled) . . . . . . . . . . . 4 $ 99

4.7.3.2 Single READ (with CMP II option: disconnect disabled) . . . . . . . . . . . . . . 4 $ 100

4.7.3.3 Single READ (with CMP II option: disconnect enabled) . . . . . . . . . . . . . . 4 $ 101

4.7.3.4 Multiple READ (with CMP II option: disconnect disabled) . . . . . . . . . . . . 4 $ 102

4.7.3.5 Multiple READ (with CMP II option: disconnect enabled) . . . . . . . . . . . . 4 $ 103

4.8 Status Transition of Logical Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 105

4.9 Error Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 106

4.10 Items for Specifying Window and Subwindow . . . . . . . . . . . . . . . . . . . . . . . 4 $ 107

iv

APPENDIX A PAPER SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 1

A.1 Paper Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 2

A.2 Paper Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 3

A.2.1 Paper type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 3

A.2.2 Ream weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 3

A.2.3 Paper quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 3

A.2.4 ADF document feeder capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 4

A.3 Paper Limitations (for ADF Reading Only) . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 5

A.3.1 Areas that must not be perforated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 5

A.3.2 Reverse unprintable areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 6

A.4 Grounding Color Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 7

A.5 Job Separation Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 8

A.5.1 Shape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 8

A.5.2 Paper conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 8

APPENDIX B ADF SCANNING SPEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B $ 1

APPENDIX C DROP>OUT COLOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C $ 1

C.1 Print Density Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C $ 1

C.2 Drop>out Color . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C $ 2

APPENDIX D DIFFERENCES BETWEEN THE M3097G AND

M3096G IMAGE SCANNERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 1

D.0 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 1

D.1 Enhanced Functions and Functional Differences . . . . . . . . . . . . . . . . . . . . D $ 2

D.1.1 Functions added . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 3

D.1.1.1 Paper size detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 3

D.1.1.2 Job separation sheet detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 5

D.1.1.3 Error diffusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 8

D.1.1.4 Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 8

D.1.1.5 Gamma correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 8

D.1.1.6 Dynamic threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 9

D.1.1.7 Lamp timer function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 10

D.1.1.8 Added sense code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 10

D.2 Supplement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 11

D.2.1 Unified terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 11

D.2.2 Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 11

v

D.2.3 Notes on compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 12

D.2.3.1 Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 12

D.2.3.2 Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 13

D.2.3.3 Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 13

D.2.3.4 Downloaded dither pattern and Brightness . . . . . . . . . . . . . . . . . . . . . . . . . D $ 13

D.2.3.5 Simplified DTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 14

vi

FIGURES

page

1.1 M3097G outer view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 $ 2

1.2 M3097G part names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 $ 4

3.1 Outer dimensions of M3097G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 $ 2

3.2 Function block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 $ 3

3.3 M3097G operator panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 $ 4

4.1 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 5

4.2 Phase sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 10

A.1 Paper size specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 2

A.2 Areas that must not be perforated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 5

A.3 Reverse unprintable areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 6

A.4 Grounding color area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A $ 7

C.1 Spectrum band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C $ 2

D.1.1 Command sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 3

vii

TABLES

page

2.1 Function specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 $ 1

2.2 Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 $ 3

2.3 Image processing function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 $ 5

3.1 Lamp functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 $ 4

4.1 SCSI physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 4

4.2 Bus phases vs. signal drive sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 8

4.3 Method of driving the interface signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 9

4.4 Signal delay times definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 10

4.5 INFORMATION TRANSFER phase type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 17

4.6 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 $ 21

D.1.1 Added functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 2

D.1.2 Functional differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D $ 2

viii

CHAPTER 1 GENERAL

1.1 General

1.2 Features

1.3 Part Names and Functions

1.1 General

M3097G image scanners produce excellent electronic images from documents using
the high quality optical image scanning technology and output to the host system.

The M3097G can scan a single page (including a page of a book) of a double>letter
size (17 in.¥11 in.) or A3 size (420 mm¥297mm) in maximum on the standard flat>
bed. The M3097G has an Automatic Document Feeder (ADF) that can
accommodate up to 100 pages.

The M3097G outputs only binary data on the Small Computer System Interface
(SCSI).

Figure 1.1 shows outer view of this scanner.

1 $ 1

Figure 1.1 M3097G outer view

1 $ 2

1.2 Features

(1) Fast reading

This scanner can read data about twice as fast as the M3096G.
For flatbed reading: 1.3 seconds (A4, 200 dpi) (M3096G: 2.3 seconds)
For ADF reading: 36 pages per minute (A4, 200 dpi) (M3096G: 18 pages per
minute)

(2) Large

>capacity document feeder

Up to 100 pages (A4, 55>kg continuous forms) can be loaded into the document
feeder. (M3096G: Up to 50 pages)

(3) High

>quality image

This scanner uses a compact optical system that provides sharper focus.
Furthermore, the use of new LSI chips produces finer images.

(4) New image processing

The standard version of this scanner has error diffusion function. Dithering or error
diffusion can be applied to those areas judged to be photographs by automatic
separation (image processing ¬ option).

(5) Compact

This scanner is small and light. (Its size is almost the same as that of the M3096G)

1 $ 3

1.3 Part Names and Functions

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This section shows the exterior view of image scanner. This section also provides
names of each part and describes their functions.

1.3.1 Exterior view of image scanner

The image scanner can read a document of A3 or double>letter size at maximum.

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Document cover

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Automatic document

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feeder (ADF)

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Extension

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Extension

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Stacker

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ADF paper chute

aaaaaaaaaaaaaaaaaaa

Operator panel

aaaaaaaaaaaaaaaaaaa

ADF lever

aaaaaaaaaaaaaaa

Document

aaaaaaaaaaaaaaa
aaaaaaaaaaaaaaa
aaaaaaaaaaaaaaa

holding pad

aaaaaaaaaaaaaaa

aaaaaaaaaaaaa
aaaaaaaaaaaaa

Document

aaaaaaaaaaaaa
aaaaaaaaaaaaa
aaaaaaaaaaaaa

bed

aaaaaaaaaaaaa

aaaaaaaaaaaaaaa

Power switch

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a
a
a
a
a

1 $ 4

aaaaaaaaaaaaaaaaa

Power inlet

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Figure 1.2 M3097G part names

a
a

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Interface connectors

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a
a

1.3.2 Functions of each part

Document cover: Closed over and holds a document to be read.

Document bed: A document to be read is placed on the bed also

Document holding pad: Presses a document to the document bed.

Automatic document feeder (ADF):

Stacker: Stacks the read documents.

Extension: Keeps the stacked documents from overhanging.

Power switch: Turns the power on or off.

called Flatbed (FB).

Automatically feeds documents to the reading
position.

Operator panel: Used to control image scanner operations. See the

next section for details of the functions.

ADF paper chute: Holds the documents to be fed by the automatic

document feeder.

ADF lever: Opens or closes the automatic document feeder to

remove documents jammed in the feeder.

Power inlet: To be connected to an AC power outlet with the

power cable.

Interface connectors: To be connected to the host system with interface

cables.

1 $ 5

This page is intentionally left blank.

1 $ 6

CHAPTER 2 SPECIFICATIONS

2.1 Function Specifications

2.2 Physical Specifications

2.3 Optional Circuit Feature

2.1 Function Specifications

Table 2.1 Function specifications (1/2)

Item

No. Specification

Technology

1

23Operating method

Document size

Light source

4 Green fluorescent lamp

5 ADF capacity MAX 100 (55 kg/continuous forms, A4 paper)

Resolution

6 Horizontal scanning 400 dpi

Gray scale

7

Interface

8

Scanning speed

9 A4/200 dpi: 1.3 s

Output resolution Standard10

CCD image sensor

Flatbed+ ADF (automatic document feeder)

Flatbed

ADF

Vertical scanning 400, 300, 240, 200 dpi

256 steps

SCSI>II

A3/400 dpi: 3.7 s

If the image
processing ¬
option is
installed

MAX 297 ¥ 432 mm

MAX 297 ¥ 432 mm
MIN 105 ¥ 148 mm

400, 300, 240, 200 dpi
(For horizontal scanning and vertical
scanning)

50 dpi to 1600 dpi
(Horizontal scanning and vertical
scanning are independent.)

2 $ 1

Table 2.1 Functional specifications (2/2)

No. Item Specification

11

Binarization and

Standard

halftone function

Fixed binarization (Line art)
Dither (Halftone)
Error diffusion (Halftone)

12

Compression

13

Image memory

Image
processing II
option
installed

Standard

CMP II option
installed

Standard

CMP II option
installed

Automatic separation
Image emphasis
Outline extraction
Mirror image
Reverse image
Simplified dynamic threshold

Dynamic threshold
Smoothing
Filtering
Noise removing

Non

MH, MR, or MMR

Non

4 MB

2 $ 2

2.2 Physical Specifications

Table 2.2 Physical specifications

ItemNo.

Dimensions

1

(mm)

Weight (kg)

2 25

Power

3

requirements

Power consumption (VA) 150 or less

4

5 Surge current (A) 30 or less

6 Momentary power failure 100% 0.5 Hz

7 Leakage current (mA) 1 or less

8 Dielectric strength AC 1 KV or more for one minute or more

AC line noise9 Voltage 1.2 KV pulse duration 5 os

Height

Width

Depth

Voltage (VAC) 100 to 120, 220 to 240 VAC ±10%

Frequency 50/60 Hz +2% -4%

Specification

173

696

497

SinglePhase

(between FG and AG lines)

Temperature

10

(∞C)

Relative

11 Operating 20 to 80 (no condensation)

humidity (%)

Vibration (G)

12

Indication (%) Operating 5

13

ESD (KV) 8 or more14

Acoustic

15

noise (dBA)

Operating 5 to 35

Nonoperating -20 to +60

Nonoperating 8 to 95 (no condensation)

Operating 0.2

Nonoperating 0.4

Nonoperating 10

Operating 53 or less (ISO DIS 9296)

Nonoperating 40 or less (ISO DIS 9296)

2 $ 3

2.3 Optional Circuit Feature

The following option is provided for this scanner:

f Image processing circuit ¬ (M3097E0191)

For the details, refer to Subsection 2.3.1.

f CMP II (M3097G0196)

2.3.1 Image processing circuit ¬ (IPC ¬)

This option has the dynamic threshold function and image processing function.

2.3.1.1 Dynamic threshold function

The main purpose of this function is to read handwritten characters.

Handwritten character recognition preprocessing invalues specifying required
values for threshold curve setting, smoothing mode, and filtering mode.

Noise removal reduces noise often found in images after dynamic threshold
processing.

Threshold curve setting, smoothing mode, filtering mode, and noise removal are all
dynamic threshold circuit (DTC) functions.

(1) Threshold curve setting

The contrast level of the dynamic threshold circuit can be changed with setting 3
bits (8 levels).

(2) Smoothing mode

The convex portion of the segment is removed and the concave portion is filled up to
smooth the segment.

(3) Filtering mode

(a) Ball>point pen mode

This mode is used when this scanner is used as the input device of OCR system.
When using writing materials caused inter>ommission, e.g. ball>point pen, the
density of the omission portion is increased according to the density of
surrounding portion to get the picture does not have inter>omission.

(b) Normal mode

This mode is used when using writing materials other than above.

(4) Noise removal

Among black>dots in the binary picture code, the black>dot for the noise is changed
to white>dot.

2 $ 4

2.3.1.2 Image processing function

Table 2.3 Image processing function

No. Function name Details function

1 Automatic separation

Line>drawing/Photo
( )

automatic separation

Recognizes the photo area and Line>drawing
area in one scanning automatically, and outputs
data with applying dither processing or error
diffusion for the photo and the binarizing for the
line>drawing.

2 Outline extraction Extracts the outline of the Line>drawing such as

a thick character.

3 Image emphasis Emphasizes the black>white contrast to raise the

contrast.

4 Overlay (*1) Overlays the pattern on the scanned data and

make the overlayed black data to white data.

5 Reverse image

(White/black conversion)

Converts white into black and black into white
of read data (binary data).

6 Mirror image Turns over the both sides of read data.

7 Simplified dynamic

threshold

Changes the slice level of the binarizing
according to the density of the document.

8 Zooming Magnifies or reduces the image data in the range

between 25% and 400% with 1% step.

9 Subwindow 4 Subwindow can be specified on Main window.

The functions above are all image processing circuit (IPC) functions.

*1 M3097G does not support overlay function.

2 $ 5

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2 $ 6

CHAPTER 3 CONFIGURATION

3.1 Outer Dimensions

3.2 Circuit Configuration

3.3 Operator Panel

3.1 Outer Dimensions

Figure 3.1 shows the outer dimensions of M3097G.

3 $ 1

173

Unit: mm

497

696

Figure 3.1 Outer dimensions of M3097G

3 $ 2

3.2 Circuit Configuration

This scanner uses CCD image sensor scanning system. This scanner consists of
following sections;

f Optical system (including fluorescent lamp, lenses, and CCD sensor)

f Video circuit (including amplifier and A/D converter)

f Scanner driver (including stepping motor and motor driver circuit)

f Control circuit (MPU circuit)

f Power section

Figure 3.2 is the function block diagram of this scanner.

Controller

100 to 120 VAC

220 to 240 VAC

Control circuit

(MPU circuit)

CMPII

Power section

Power switch

(option)

Motor driver

circuit

Operator panel

Figure 3.2 Function block diagram

Video circuit

Image processing

circuit ¬ (option

Mechanism

section

Flatbed ADF

)

3 $ 3

3.3 Operator panel

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a

a

a

a

a

a

a

a

a

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a

a

a

a

a

a

a

Figure 3.3 shows the operator panel and Table 3.1 shows lamp functions.

" Power

LCD

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Mode1

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a
a
a
a

" Read

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a

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24 columns 2 rows

Mode2

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a
a

" Check

Figure 3.3 M3097G operator panel

Table 3.1 Lamp functions

Lamp name Color Functions

Power Green This lamp lights when the power is on.

Read Green This lamp lights during reading.

Check Yellow This lamp lights when an unrecoverable error

occurs.
This lamp brinks when a paper jam occurs in ADF.
After jammed paper is removed and ADF cover is
closed, this lamp goes off.

3 $ 4

CHAPTER 4 INTERFACE

4.1 Physical Specifications

4.2 SCSI Bus

4.3 Bus Phases

4.4 Commands

4.5 Status

4.6 Messages

4.7 Command Sequence

4.8 Status Transition of Logical Unit

4.9 Error Table

4.10 Items for Specifying Window and Subwindows

This image scanner and the host are connected via an 8>bit parallel interface. The interface
follows the ANSI (American National Standards Institute) SCSI 2 (Small Computer System
Interface 2) Revision 10c.

This chapter provides an overview of SCSI (minimum information necessary for
understanding this scanner), as well as descriptions peculiar to the scanner. For details of
SCSI, refer to the ANSI standard.

The following terms are needed to understand this section.

f SCSI device: A host adapter or a target controller that can be attached to the SCSI

bus

f Initiator: An SCSI device (usually a host system) that requests an I/O process to be

performed by another SCSI device (a target)

f Target: An SCSI device that performs an operation requested by an initiator

f Logical unit: A physical or virtual peripheral device that is addressable through a

target

Range of support

(1) System configuration

This scanner operates under the multiinitiator, multitarget environment. An
initiator function is not provided. This scanner incorporates an integrated target
and logical unit (image scanner).

4 $ 1

SCSI ID: 0 to 7, variable by EEPROM: default is 5.

Logical unit number (LUN): 000, fixed

(2) Bus phases

All phases are supported.

(3) Commands

The following commands are supported by this scanner:

f INQUIRY
f OBJECT POSITION
f MODE SELECT
f MODE SENSE
f READ
f RELEASE UNIT
f REQUEST SENSE
f RESERVE UNIT
f SEND
f SEND DIAGNOSTIC
f SET SUBWINDOW
f SET WINDOW
f TEST UNIT READY

A control byte is not supported. If the value other than X©00π is specified, an error
is generated.

(4) Statuses

The following statuses are supported by this scanner:

f BUSY
f CHECK CONDITION
f GOOD
f RESERVATION CONFLICT

4 $ 2

(5) Messages

The following messages are supported by this scanner:

f ABORT
f BUS DEVICE RESET
f COMMAND COMPLETE
f DISCONNECT
f IDENTIFY
f INITIATOR DETECTED ERROR
f MESSAGE PARITY ERROR
f MESSAGE REJECT
f NO OPERATION
f RESTORE POINTERS
f SAVE DATA POINTER

(6) Others

The bits and fields for which the word ™Reserved∫ is described are checked. For a
non>zero, an error is returned.

4.1 Physical Specifications

The devices linked to this interface are daisy>chained with each other. A
terminator is attached to the ends of the interface. Interface specifications are
shown below.

(1) Connection

SCSI device SCSI device SCSI device

Terminator

Note:

Use shielded interface cable to avoid unintentional errors.

Terminator

4 $ 3

(2) Physical specifications

Table 4.1 SCSI physical specifications

Item Specification

Driver/Receiver

Connector

Cable Max. cable length

Characteristic
impedance

Cable type

Stub wire

Signal

Terminator

level

Driver/receiver

Output
characteristics

Input
characteristics

Single>ended

50 Contact Shielded Low Density

6 m

132 ]

25 signal twisted pair

e 0. 1 mm (from main cable in scanner to internal
wiring)

See the figure under (3).

Open collector or three> state driver

Low level (true) = 0. 0 to 0. 5 VDC
High level (false) = 2. 5 to 5. 25 VDC
Output current = 48 mA (corresponding output
voltage e 0. 5 V)

Low level (true) = 0. 0 to 0. 8 VDC
High level (false) = 2. 0 to 5. 25 VDC
Input load = -0. 4 mA max. (at 0. 4 V input voltage)
Input hysteresis = 0. 2 VDC min.

Connector pin assignments
for signal lines

(3) Termination

See (4).

+5 V

220 ]

-signal

330 ]

4 $ 4

(4) Pin assignments

Signal name Pin number Signal name

GND 1 26 -DB (0)

GND 2 27 -DB (1)

GND 3 28 -DB (2)

GND 4 29 -DB (3)

GND 5 30 -DB (4)

GND 6 31 -DB (5)

GND 7 32 -DB (6)

GND 8 33 -DB (7)

GND 9 34 -DB (P)

GND 10 35 GND

GND 11 36 GND

Reserved 12 37 Reserved

(Open) 13 38 TERMPWR

Reserved 14 39 Reserved

GND 15 40 GND

GND 16 41 -ATN

GND 17 42 GND

GND 18 43 -BSY

GND 19 44 -ACK

GND 20 45 -RST

GND 21 46 -MSG

GND 22 47 -SEL

GND 23 48 -C/ D

GND 24 49 -REQ

GND 25 50 -I/ O

Note:

Reserved pins are connected to GND.

Figure 4.1 Pin assignment

4 $ 5

4.2 SCSI Bus

4.2.1 System configuration

(1) System configuration

The SCSI bus connects up to eight SCSI devices, each linked with a daisy chain. The
both ends of the daisy chain require a terminator.

Each SCSI device operates as an initiator or a target, so that a series of operations
are performed between a pair of initiator and target pair.

The system may be configured with any combination of initiators and targets as
long as the number of the initiators and targets combined does not exceed eight.

(2) Addresses of SCSI devices

Every SCSI device on the bus is assigned a unique address (SCSI ID) that
corresponds to the data bus bit number. ID#7 through ID#0 correspond to DB7
through DB0. The SCSI ID provides identification for specifying particular SCSI
device when an initiator selects a target or when a target reconnects an initiator.

SCSI ID also represents the priority for using the bus in the arbitration phase. (A
description regarding the bus phase is given later.) Priorities are given in the
descending order of data bus bit numbers (DBn), with the highest priority placed on
ID#7 (DB7) and the lowest priority on ID#0 (DB0).

(3) Peripheral equipment

With the basic specification, an initiator can designate up to eight peripheral
devices (logical units) belonging to a single target, where the peripheral devices are
used as the I/O units of the initiator. Logical units are identified and selected by
specifying their LUNs (logical unit numbers) in the IDENTIFY message or
command (CDB: command descriptor block).

This scanner is equipped with a target and a logical unit, and its LUN is 000.

4 $ 6

4.2.2 Bus signals

Signal name Type of signal

Initiator

Target

Data DB0

DB1
DB2
DB3
DB4
DB5
DB6
DB7
(Data Bus n)

DBP
(Data Bus
Parity)

Control
signals

BSY
(Busy)

SEL
(Select)

RST
(Reset)

C/ D
(Control/Data)
I/ O
(Input/Output)
MSG
(Message)

Eight data>bit signals, plus a parity>bit signal
that form a DATA BUS. DB(7) is the most
significant bit and has the highest priority during
the ARBITRATION phase. Bit number,
significance, and priority decrease downward to
DB(0).

A data bit is defined as one when the signal value
is true. A data bit is defined as zero when the
signal value is false. Data parity DB(P) shall be
odd. Parity is undefined during the
ARBITRATION phase.

An ™ORtied∫ signal that indicates that the bus is
being used

An ™ORtied∫ signal used either by an initiator to
select a target or by a target to reselect an
initiator

An ™ORtied∫ signal that indicates the RESET
condition

The C/D, I/O, and MSG signals are used to
distinguish between the different information
transfer phases.

REQ
(Request)

ACK
(Acknowledge)

ATN
(Attention)

During an information transfer phase, the target
uses this signal to request the initiator to transfer
data

A signal driven by an initiator to indicate an
acknowledgement for REQ/ACK data transfer
handshake

A signal driven by an initiator to indicate the
ATTENTION condition

4 $ 7

4.2.3 Bus signal drive conditions

SCSI devices drive signals of the SCSI bus. The types of SCSI devices are
summarized in the following table, showing the signals that they can drive for each
operating phase of the interface.

There are two kinds of signal driving methods, OR tied and NON>OR tied, as shown
in Table 4.2. During an interface operating sequence, the BSY signal could be
driven simultaneously by two or more SCSI units when the data bus is in the
ARBITRATION or RESELECTION phase. This situation also occurs with the RST
signal (Reset). These two signals must be ORtied. For the other signals, either of
the two methods may be used; further more, different drive methods may coexist for
a signal on the bus.

Table 4.2 Bus phases vs. signal drive sources (1/2)

!!!! Signal
Bus phase

BSY SEL I/ O C/ D

MSG

REQ ACK DB7 to 0

DBP

ATN RST

BUS FREE N N N N N N N N A

ARBITRATION A W N N N N ID N A

SELECTION I&T I N N N I I I A

RESELECTION I&T T T T T I T I A

COMMAND T N T T T I I I A

DATA IN T N T T T I T I A

DATA OUT T N T T T I I I A

STATUS T N T T T I T I A

MESSAGE IN T N T T T I T I A

MESSAGE OUT T N T T T I I I A

4 $ 8

N: The signal shall be released, since it is not being driven by any SCSI device.

A: The signal shall be driven by all SCSI devices that are actively arbitrating.

I: If driven, this signal shall be driven only the active initiator.

T: If the signal is driven, it shall be driven only by the active target.

W: The signal shall be driven by the one SCSI device that wins arbitration.

Table 4.2 Bus phases vs. signal drive sources (2/2)

ID: A unique data bit (the SCSI ID) shall be driven by each SCSI device that is

actively arbitrating. The other seven data bits shall be released (shall not
driven) by this SCSI device. The parity bit (DB(P)) may be released or
driven to the true state, but shall never be driven to the false state during
this phase.

I&T: The initiator and target drive the signal according to the interface operating

sequence. The RESELECTION phase includes a sequence in which the
initiator and target simultaneously drive the signal.

The signal shall be driven by the initiator, target, or both, as specified in the
SELECTION phase and RESELECTION phase.

Table 4.3 Method of driving the interface signal

OR connection

False

No signal is driven by any SCSI
device. Signal status is made false by
the termination resistor circuits.

True A SCSI device drives the signal true.

4.3 Bus Phases

The SCSI architecture includes the following eight distinct phases:

f BUS FREE phase
f ARBITRATION phase
f SELECTION phase
f RESELECTION phase
f COMMAND phase
f DATA phase
f STATUS phase
f MESSAGE phase

The SCSI bus can never be in more than one phase at any given time.

NON>OR connection

The signal is driven false by a certain
SCSI device (initiator or target), or is
not driven by any SCSI device.

INFORMATION TRANSFER phase

The following diagram shows how each phase transits to another.

4 $ 9

Reset

MESSAGE OUT

SELECTION

COMMAND

BUS FREE

ARBITRATION

DATA OUT

STATUS

RESELECTION

MESSAGE IN

Figure 4.2 Phase sequence

The signal delay times for each bus phase are defined as follows:

Table 4.4 Signal delay times definition (1/3)

No. Item Time Definition

DATA IN or

1 Arbitration

delay

2.4 os The minimum time an SCSI device shall wait from
asserting BSY for arbitration until the DATA BUS can
be examined to see if arbitration has been won. There is
no maximum time.

2 Assertion

period

3 Bus Clear

delay

4 $ 10

90 ns The minimum time that a target shall assert REQ (or

REQB) while using synchronous data transfers. Also,
the minimum time that an initiator shall assert ACK
while using synchronous data transfers.

800 ns The maximum time for an SCSI device to stop driving all

bus signals after:
(1) The BUS FREE phase is detected (BSY and SEL both

false for a bus settle delay)

(2) SEL is received from another SCSI device during the

ARBITRATION phase

(3) The transition of RST to true.

For the first condition listed, the maximum time for an
SCSI device to clear the bus is 1200 nanoseconds from
BSY and SEL first becoming both false. If an SCSI
device requires more than a bus settle delay to detect
BUS FREE phase, it shall clear the bus within a bus
clear delay minus the excess time.

Table 4.4 Signal delay times definition (2/3)

No. Item Time Definition

4 Bus free delay 800 ns The minimum time that an SCSI device shall wait from

its detection of the BUS FREE phase (BSY and SEL both
false for a bus settle delay) until its assertion of BSY
when going to the ARBITRATION phase

5 Bus set delay 1.8 os The maximum time for an SCSI device to assert BSY and

its SCSI ID bit on the DATA BUS after it detects BUS
FREE phase (BSY and SEL both false for a bus settle
delay) for the purpose of entering the ARBITRATION
phase

6 Bus settle

delay

7 Cable skew

delay

8 Data release

delay

9 Deskew delay 45 ns The minimum time required for deskew of certain

10 Disconnection

delay

11 Hold time 45 ns The minimum time added between the assertion of REQ

400 ns The minimum time to wait for the bus to settle after

changing certain control signals as called out in the
protocol definitions

10 ns The maximum difference in propagation time allowed

between any two SCSI bus signals measured between
any two SCSI devices

400 ns The maximum time for an initiator to release the DATA

BUS signals following the transition of the I/O signal
from false to true

signals

200 os The minimum time that a target shall wait after

releasing BSY before participating in an ARBITRATION
phase when honoring a DISCONNECT message from the
initiator

(or REQB) or ACK (or ACKB) and the changing of the
data lines to provide hold time in the initiator or target
while using synchronous data transfers. REQB and
ACKB timings only apply to optional wide data
transfers.

12 Negation

period

13 Power>on to

selection time

90 ns The minimum time that a target shall negate REQ (or

REQB) while using synchronous data transfers. Also,
the minimum time that an initiator shall negate ACK (or
ACKB) while using synchronous data transfers. REQB
and ACKB timings only apply to optional wide data
transfers.

10 sec
(recom>
mended)

The recommended maximum time from power
application until an SCSI target is able to respond with
appropriate status and sense data to the TEST UNIT
READY, INQUIRY, and REQUEST SENSE commands

4 $ 11

Table 4.4Signal delay times definition (3/3)

No. Item Time Definition

14 Reset to

selection
time

15 Reset hold

time

16 Selection

abort time

17 Selection

timeout
delay

18 Transfer

period

4.3.1 BUS FREE phase

The BUS FREE phase is used to indicate that no SCSI device is actively using the
SCSI bus, and that it is available.

250 ms
(recom­mended)

25 µs The minimum time over which RST must be kept asserted

200 µs The maximum time required from the moment when

250 ms
(recom­mended)

The recommended maximum time after a hard RESET
condition until an SCSI target is able to respond with
appropriate status and sense data to the TEST UNIT
READY, INQUIRY, and REQUEST SENSE commands

selection or deselection of an initiator or target is detected
until BSY is asserted

The minimum time required for an initiator or target in
the selection or deselection phase to wait for a BSY
response before it starts the timeout procedure

The minimum allowable period, during sync data
transfer, between the start of consecutive REQ pulses and
the start of consecutive ACK pulses

BSY

SEL

others

SCSI devices shall detect the BUS FREE phase after the SEL and BSY signals are
both false for at least a bus settle delay.

SCSI devices shall release all SCSI bus signals within a bus clear delay after the
BSY and SEL signals become continuously false for a bus settle delay.

bus clear delaybus settle delay

BUS FREE phase

4 − 12

4.3.2 ARBITRATION phase

The ARBITRATION phase allows one SCSI device to gain control of the SCSI bus so
that it can initiate or resume an I/O process. The procedure for an SCSI device to
obtain control of the SCSI bus is as follows:

— The SCSI device shall first wait for the BUS FREE phase to occur.

“ The SCSI device shall wait a minimum of a bus free delay after detection of the

BUS FREE phase (i.e. after the BSY and SEL signals are both false for a bus
settle delay) before driving any signal.

” Following the bus free delay in Step “, the SCSI device may arbitrate for the

SCSI bus by asserting both the BSY signal and its own SCSI ID, however, the
SCSI device shall not arbitrate (i.e. assert the BSY signal and its SCSI ID) if
more than a bus set delay has passed since the BUS FREE phase was last
observed.

‘ After waiting at least an arbitration delay (measured from its assertion) the

SCSI device shall examine the DATA BUS. If a higher priority SCSI ID bit is
true on the DATA BUS (DB(7) is the highest), then the SCSI device has lost the
arbitration and the SCSI device may release its signals and return to Step —. If
no higher priority SCSI ID bit is true on the DATA BUS, then the SCSI device
has won the arbitration and it shall assert the SEL signal. Any SCSI device
other than the winner has lost the arbitration and shall release the BSY signal
and its SCSI ID bit within a bus clear delay after the SEL signal becomes true.
An SCSI device that loses arbitration may return to Step —.

’ The SCSI device that wins arbitration shall wait at least a bus clear delay plus a

bus settle delay after asserting the SEL signal before changing any signals.

4 $ 13

bus settle
delay

BSY

ARBITRATION phase

bus free delay

SCSI

ID7

ID3

SEL

DB

BSY

SEL

DB(7)

BSY

SEL

DB (3)

bus set
delay

&

bus free
delay

bus set delay

bus free
delay

&

arbitration delay

bus clear delay

bus clear delay
+ bus settle delay

arbitration delay

BSY

ID1

&

SEL

DB (1)

bus free
delay

ID7: Succeeds in ARBITRATION

ID3: Detects the SEL signal of other SCSI unit

ID1: Detects the SCSI ID with higher priority than itself

&: The point at which the BUS FREE phase is detected by each SCSI unit.

4 $ 14

4.3.3 SELECTION phase

The SELECTION phase allows an initiator to select a target for the purpose of
initiating some target function (e.g., READ or WRITE command). During the
SELECTION phase the I/O signal is negated so that this phase can be distinguished
from the RESELECTION phase.

— The SCSI device that won the arbitration has both the BSY and SEL signals

asserted and has delayed at least a bus clear delay plus a bus settle delay before
ending the ARBITRATION phase. The SCSI device that won the arbitration
becomes an initiator by not asserting the I/O signal.

“ The initiator shall set the DATA BUS to a value which is the OR of its SCSI ID

bit and the targetπs SCSI ID bit, and it shall assert the ATN signal.

” The initiator shall then wait at least two deskew delays and release the BSY

signal.

‘ The initiator shall then wait at least a bus settle delay before looking for a

response from the target.

’ The target shall determine that it is selected when the SEL signal and its SCSI

ID bit are true and the BSY and I/O signals are false for at least a bus settle
delay. The selected target may examine the DATA BUS in order to determine
the SCSI ID of the selecting initiator. The selected target shall then assert the
BSY signal within a selection abort time of its most recent detection of being
selected; this assertion is required for correct operation of the selection time>out
procedure.

The target shall not respond to a selection if bad parity is detected. Also, if more
than two SCSI ID bits are on the DATA BUS, the target shall not respond to
selection.

÷ No less than two deskew delays after the initiator detects the BSY signal is

true, it shall release the SEL signal and may change the DATA BUS. The
target shall wait until the SEL signal is false before asserting the REQ signal to
enter an information transfer phase.

SELECTION phase
bus clear delay
+ bus settle delay

I/O

BSY

SEL

DB

deskew
delay ¥ 2

deskew
delay ¥ 2

4 $ 15

4.3.4 RESELECTION phase

RESELECTION is an optional phase that allows a target to reconnect to an
initiator for the purpose of continuing some operation that was previously started
by the initiator but was suspended by the target (i.e., the target disconnected by
allowing a BUS FREE phase to occur before the operation was complete).

— Upon completing the ARBITRATION phase, the winning SCSI device has both

the BSY and SEL signals asserted and has delayd at least a bus clear delay plus
a bus settle delay. The winning SCSI device becomes a target by asserting the
I/O signal.

“ The winning SCSI device shall also set the DATA BUS to a value that is the

logical OR of its SCSI ID bit and the initiatorπs SCSI ID bit.

” The target shall wait at least two deskew delays and release the BSY signal.

‘ The target shall then wait at least a bus settle delay before looking for a

response from the initiator.

’ The initiator shall determine that it is reselected when the SEL and I/O signals

and its SCSI ID bit are true and the BSY signal is false for at least a bus settle
delay. The reselected initiator may examine the DATA BUS in order to
determine the SCSI ID of the reselecting target. The reselected initiator shall
then assert the BSY signal within a selection abort time of its most recent
detection of being reselected; this is required for correct operation of the time>
out procedure. The initiator shall not respond to a RESELECTION phase if bad
parity is detected. Also, the initiator shall not respond to a RESELECTION
phase if other than two SCSI ID bits are on the DATA BUS.

÷ After the target detects the BSY signal is true, it shall also assert the BSY

signal and wait at least two deskew delays and then release the SEL signal.
The target may then change the I/O signal and the DATA BUS. After the
reselected initiator detects the SEL signal is false, it shall release the BSY
signal. The target shall continue asserting the BSY signal until it relinguishes
the SCSI bus.

RESELECTION phase
bus clear delay
+ bus settle delay

I/O

BSY

SEL

DB

deskew
delay ¥ 2

TARG INIT

deskew
delay ¥ 2

TARG

INIT

4 $ 16

4.3.5 INFORMATION TRANSFER phases

Note:

The COMMAND, DATA, STATUS, and MESSAGE phases are all grouped
together as the information transfer phases because they are all used to transfer
data or control information via the DATA BUS. The actual content of the
information is beyond the scope of this section.

The C/D, I/O, and MSG signals are used to distinguish between the different
information transfer phases (see Table 4.5). The target drives these three signals
and therefore controls all changes from one phase to another. The initiator can
request a MESSAGE OUT phase by asserting the ATN signal, while the target can
cause the BUS FREE phase by releasing the MSG, C/D, I/O, and BSY signals.

Table 4.5 INFORMATION TRANSFER phase type

Phase C/D I/O MSG DB7 to 0, P Transfer direction
DATA OUT 0 0 0 Data INIT TARG
DATA IN 0 1 0 Data INIT TARG
COMMAND 1 0 0 Command INIT TARG
STATUS 1 1 0 Status INIT TARG
* 0 0 1
* 0 1 1
MESSAGE OUT 1 0 1 Message INIT TARG
MESSAGE IN 1 1 1 Message INIT TARG

0: False
1 True
INIT: Initiator
TARG: Target

* : Reserved for future standardization

4 – 17

INFORMATION

INFORMATION TRANSFER phase

Min. 0ns bus settle delaybus settle delay

BSY

SEL

C/D,
MSG, I/O

REQ

ACK

DB

TRANSFER phase

The INFORMATION TRANSFER phases use one or more REQ/ACK handshakes to
control the information transfer. Each REQ/ACK handshake allows the transfer of
one byte of information. During the INFORMATION TRANSFER phases the BSY
signal shall remain true and the SEL signal shall remain false. Additionally,
during the INFORMATION TRANSFER phases, the target shall continuously
envelope the REQ/ACK handshake (s) with the C/D, I/O, and MSG signals in such a
manner that these control signals are valid for a bus settle delay before the
assertion of the REQ signal of the first handshake. These control signals remain
valid until after the negation of the ACK signal at the end of the handshake of the
last transfer of the phase.

(1) Asynchronous information transfer

The target shall control the direction of information transfer by means of the I/O
signal. When the I/O signal is true, information shall be transferred from the target
to the initiator. When the I/O signal is false, information shall be transferred from
the initiator to the target.

a. Asynchronous transfer from target to initiator

If the I/O signal is true (transfer to the initiator), the target shall first drive the
DB(7>0, P) signals to their desired values, delay at least one deskew delay plus a
cable skew delay then assert the REQ signal. The DB(7>0, P) signals shall
remain valid until the ACK signal is true at the target. The initiator shall read
the DB(7>0, P) signals after the REQ signal is true then indicate its acceptance
of the data by asserting the ACK signal. When the ACK signal becomes true at
the target, the target may change or release the DB(7>0, P) signals and shall
negate the REQ signal. After the REQ signal is false, the initiator shall then
negate the ACK signal.

4 $ 18

After the ACK signal is false, the target may continue the transfer by driving
the DB(7>0, P) signals and asserting the REQ signal, as previously described.

BSY

SEL

C/D, MSG

I/O

REQ

ACK

DB

bus settle delay

deskew delay +
cable skew delay

deskew delay
+ cable skew delay

b. Asynchronous transfer from initiator to target

If the I/O signal is false (transfer to the target), the target shall request
information by asserting the REQ signal. The initiator shall drive the DB(7>0,
P) signals to their desired values, delay at least one deskew delay plus a cable
skew delay then assert the ACK signal. The initiator shall continue to drive the
DB(7>0, P) signals until the REQ signal is false. When the ACK signal becomes
true at the target, the target shall read the DB(7>0, P) signals then negate the
REQ signal. When the REQ signal becomes false at the initiator, the initiator
may change or release the DB(7>0, P) signals and shall negate the ACK signal.
The target may continue the transfer by asserting the REQ signal, as previously
described.

4 $ 19

BSY

SEL

C/D, MSG

I/O

REQ

ACK

DB

bus settle
delay

deskew delay +
cable skew delay

deskew delay
+ cable skew delay

4.4 Commands

Commands are directions issued from an initiator to a target. This image scanner
supports the following range of the commands specified by the SCSI standard.

(a) The identification number of logical unit (LUN: logical unit number) is B©000π.

If this scanner receives a value other than 000, it returns error information as
follows:

f Status key: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(b) Relative addressing is not supported.

If this scanner receives a relative address (RelAdr) = 1, it returns error
information as follows:

f Status key: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(c) A control byte is not supported.

If this scanner receives a control byte b X©00π , it returns error information as
follows:

4 $ 20

f Status key: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(d) A bit and field described as ™Reserved∫ are 0.

If this scanner receives a value other than 0, it returns error information as
follows:

f Status key: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

The commands supported by this scanner are listed below.

Table 4.6 Commands

Command

Operation

code (hex)

Description

RESERVE UNIT 16 Declares the exclusive use of a logical unit

RELEASE UNIT 17 Cancels the declaration of the execlusive use of a

logical unit

INQUIRY 12 Examines the information regarding the target and

logical unit

REQUEST SENSE 03 Requests a target for sense data

SEND

1D Requests a target for self>check

DIAGNOSTIC

TEST UNIT

00 Checks whether or not a logical unit is ready

READY

SET WINDOW 24 Sets a window

SET

C0 Sets subwindows

SUBWINDOW

SEND 2A Sends Dither Matrix

OBJECT

31 Controls the automatic document feeder

POSITION

READ 28 Requests transfer of image data

MODE SELECT 15 Selects operating mode of the device.

MODE SENSE 1A Requests operating mode of the device.

4 $ 21

4.4.1 RESERVE UNIT command

The following table shows the normal sequence of the RESERVE UNIT command
when used with this scanner.

Step Bus phase Initiator operation ¨ Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 MESSAGE OUT Selects logical unit Æ

5 COMMAND Specifies

Æ
RESERVE UNIT
(CDB)

6 STATUS ¨ Reports GOOD status

7 MESSAGE IN ¨ Reports message (Command

Complete)

Releases BSY signal

8 BUS FREE

(1) RESERVE UNIT command: COMMAND phase (initiator Æ target)

Where a logical unit can be accessed by two or more initiators, there could be
interferences with command sequences, data, etc. This situation can be avoided by
issuing the RESERVE UNIT command before initiating a series of operations.

Once a logical unit has properly accepted the RESERVE UNIT command, it will be
occupied by the initiator that issued the RESERVE UNIT command. If the 3rd
party reservation option is supported, the logical unit might be occupied by another
SCSI unit % one having an initiator function % which is specified TPID. In this
condition, called ™reserved,∫ the logical unit cannot be accessed from any other
initiators. The reserved condition remains effective until one of the following
events take place:

4 $ 22

— The reservation is replaced by a new RESERVE COMMAND from the same

initiator that has reserved the logical unit. (Issuing another RESERVE UNIT
command with the reservation still effective does not results in an error. The
previously established reservation is released as a result of “, ” or ‘ described
below.)

“ The RELEASE UNIT command is issued from the same initiator that has

reserved the logical unit.

” The BUS DEVICE RESET message is sent from any initiator.

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a

a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

‘ A hardware reset condition is detected.

The condition in effect after ” or ‘ is indicated by a sense key X©6π (UNIT
ATTENTION), which is returned in response to a subsequent command.

When a logical unit is already reserved by another initiator, if a command other
than RELEASE UNIT, INQUIRY, or REQUEST SENSE is issued, the target
returns the following status:

f Status: B©01100π (RESERVATION CONFLICT)

The initiator having reserved a logical unit can change the reservation by
issuing the RESERVE UNIT command to the same logical unit.

The command descriptor block (CDB) of this command is shown in the following
illustration.

Byte 0

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aaaaaaaaaaa

1

a

7

aaaaaaaaaaa

a

aaaaaaaaaaa

a

6

aaaaaaaaaaa

5

a

aaaaaaaaaaa

Logical unit number TP TPID

2

3

4

5

a. TP (third party) : Byte 1

As this scanner does not support the 3rd party reservation option, setting
this bit to 1 causes the target to return the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

b. TPID (third party device ID) : Byte 1

This scanner ignores TPID.

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aaaaaaaaaaa

a

4

aaaaaaaaaaa

3

a

aaaaaaaaaaa

Operation code X©16π

(Reserved)

Control byte

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2

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

aaaaaaaaaaa

0

aaaaaaaaaaa

(Reserved)

a
a

4 $ 23

4.4.2 RELEASE UNIT command

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a

a

a

a

a

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a

a

a

a

a

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a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

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a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

The following table shows the normal sequence of the RESERVE UNIT command
when used with this scanner.

Step Bus phase Initiator operation ¨ Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 MESSAGE OUT Selects logical unit Æ

5 COMMAND Specifies

Æ
RELEASE UNIT
(CDB)

6 STATUS ¨ Reports GOOD status

7 MESSAGE IN ¨ Reports message (Command

Complete)

Releases BSY signal

8 BUS FREE

(1) RELEASE UNIT command: COMMAND phase (initiator Æ target)

The RELEASE UNIT command releases a reserved status. If this command comes
from an initiator that has not declared reservation, the target ignores the command
and responds with the GOOD status (the reserved status is not released).

The CDB of this command is shown in the following illustration.

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aaaaaaaaaaa

a

7

aaaaaaaaaaa

a

aaaaaaaaaaa

a

6

aaaaaaaaaaa

5

a

aaaaaaaaaaa

aaaaaaaaaaa

4

aaaaaaaaaaa

a

aaaaaaaaaaa

3

a

aaaaaaaaaaa

aaaaaaaaaaa

2

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

Byte 0 Operation code X©17π

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0

aaaaaaaaaaa

a
a

1

Logical unit number

TP TPID

(Reserved)

2

3

(Reserved)

4

5

Control byte

4 $ 24

a. TP (third party) : Byte 1

As this scanner does not support the 3rd party reservation option, setting this
bit to 1 causes the target to return the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

b. TPID (third party device ID) : Byte 1

This scanner ignores TPID.

4.4.3 INQUIRY command

The following table shows the normal sequence of the INQUIRY command when
used with this scanner.

Step Bus phase Initiator operation ¨ Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 MESSAGE OUT Selects logical unit Æ

5 COMMAND Specifies INQUIRY

Æ
(CDB)

6 DATA IN ¨ Reports inquiry data

7 STATUS ¨ Reports GOOD status

8 MESSAGE IN ¨ Reports message (Command

Complete)

Releases BSY signal

9 BUS FREE

(1) INQUIRY command: COMMAND phase (initiator Æ target)

The INQUIRY command used to check information regarding a target and logical
unit.

The CDB of this command is shown in the following illustration.

4 $ 25

Byte 0

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a

a

a

a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

a

a

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a

a

a

a

a

a

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a

a

a

a

a

a

a

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aaaaaaaaaaa

7

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

6

a

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

5

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

a

aaaaaaaaaaa

a

4

aaaaaaaaaaa

3

a

aaaaaaaaaaa

Operation code X©12π

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aaaaaaaaaaa

2

aaaaaaaaaaa

a

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a

aaaaaaaaaaa

1

a

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aaaaaaaaaaa
aaaaaaaaaaa

0

aaaaaaaaaaa

a
a
a

1

2

3

4

5

Logical unit number

Page code

(Reserved)

Allocation length

Control byte

(Reserved)

a. EVPD (enable vital product data) : Byte 1

This scanner does not support EVPD. If this bit is set to 1, the scanner returns
the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

b. Page code: Byte 2

This scanner does not support page code. If this bit is set to 1, the scanner
returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

EVPD

c. Allocation length: Byte 4

This field specifies the storage area in bytes that the initiator allocates for
inquiry data. If a 0 is set here, inquiry data is not transferred, but this is not
regarded as an error. The target terminates the DATA IN phase when it has
transferred either the bytes of inquiry data specified in this field or all of
effective inquiry data.

4 $ 26

(2) Inquiry data: DATA IN pahse (target Æ initiator)

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a

a

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a

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a

a

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a

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a

a

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a

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a

a

a

a

a

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a

a

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a

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a

a

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a

a

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a

a

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a

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a

a

a

a

a

Byte 0

10

1F

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aaaaaaaaaaa

1

2

3

4

5

6

7

8

(MSB)

F

(MSB)

7

RMB

ISO version

AENC

RelAdr

a

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a

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a

6

aaaaaaaaaaa

5

a

aaaaaaaaaaa

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4

aaaaaaaaaaa

a

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3

a

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2

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

Peripheral device typePeripheral qualifier

Device type qualifier

ECMA version

(Reserved)

ANSI approved version

Response data format

Additional length (n>4)

(Reserved)

Wbus32 Wbus16 SYNC LINKED CACHE CMDQUE SftRst

Vendor identification

Product identification

0

(LSB)

(LSB)

a
a

20

(MSB)

23

24

5F

a. Peripheral qualifier: Byte 0

Indicates the connection status of the devices under control of the target. This
scanner returns B©000π.

b. Peripheral device type: Byte 0

Indicates the type of the devices under control of the target. This scanner
returns B©00110π (scanner).

Product revision level

(LSB)

(Reserved)

4 $ 27

c. Removable medium (RMB) : Byte 1

This scanner does not support RMB. This scanner returns B©0π.

d. Device type qualifier: Byte 1

This scanner does not support this field. This scanner always returns
B©0000000π.

e. ISO version, ECMA version, ANSI approved version: Byte 2

Indicates the version number of the governing standard. This scanner returns
X©02π (SCSI>2).

f. Asynchronous event notification capability (AENC) : Byte 3

This scanner does not support this field, so it returns B©0π.

g. Response data format: Byte 3

Indicates the standard, and its version number, that governs the format of
inquiry data. This scanner returns B©0010π (SCSI>2).

h. Additional length (n>4) : Byte 4

Specifies the number of bytes, from byte 5 to the last byte. This value will not
change with the allocation length value specified in CDB. This scanner returns
X©5Bπ (the 91 bytes from byte 5 to byte 5F).

i. RelAdr, Wbus32, Wbus16: Byte 7

This scanner does not support RelAdr/ Wbus32/ Wbus16. This scanner returns
B©000π.

j. SYNC (synchronous transfer) : Byte 7

This scanner returns B©0π (™synchronous transfer not supported∫ ).

k. Linked, cache, CMDQUE: Byte 7

This scanner does not support linked/cache/CMDQUE. This scanner returns
B©000π.

l. sftRst (Soft Reset) : Byte 7

This scanner performs Hardware Reset. This scanner returns B©0π.

m. Vendor identification: Bytes 8 to F

Indicates the vendor of the logical unit in ASCII code. The vendor name is left>
justified, with the blank filled with spaces (X©20π). This scanner returns
™FUJITSU∫.

4 $ 28

n. Product identification: Bytes 10 to 1F

Indicates the product name in ASCII code. The name is left>justified, with the
blank filled with spaces (X©20π). This scanner returns one of the following
names:

M3097G without option
M3097Gi with image processing II option
M3097Gm with CMPII option
M3097Gim with image processing II option and CMP II option

o. Product revision level: Bytes 20 to 23

Indicates the version number of the product in ASCII code. This number is left>
justified, with the blank filled with spaces (X©20π).

4.4.4 REQUEST SENSE command

The following table shows the normal sequence of the REQUEST SENSE command
when used with this scanner.

Step Bus phase Initiator operation ¨ Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 MESSAGE OUT Selects logical unit Æ

5 COMMAND Specifies

Æ
REQUEST SENSE
(CDB)

6 DATA IN ¨ Reports sense data

7 STATUS ¨ Reports GOOD status

8 MESSAGE IN ¨ Reports message (Command

Complete)

Releases BSY signal

9 BUS FREE

4 $ 29

(1) REQUEST SENSE command: COMMAND phase (initiator Æ target)

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a

a

a

a

a

a

a

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a

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a

aaaaaaaaaaaaa
a

a

a

a

a

a

aaaaaaaaaaaaa

a

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a

a

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a

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a

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a

a

a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

a

a

The REQUEST SENSE command requests the sense data that shows the status of a
logical unit. On receiving this command, the target sets the unitπs status in the
sense data and returns it to the initiator.

The CDB of this command is shown in the following illustration.

Byte 0

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aaaaaaaaaaa
aaaaaaaaaaa

1

a

aaaaaaaaaaa

a

7

aaaaaaaaaaa

a

aaaaaaaaaaa

a
a

6

a

Logical unit number

aaaaaaaaaaa
aaaaaaaaaaa

5

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

a

aaaaaaaaaaa

a

4

aaaaaaaaaaa

3

a

aaaaaaaaaaa

Operation code X©03π

2

(Reserved)

3

4

5

Allocation length

Control byte

a. Allocation length: Byte 4

Specifies the storage area in bytes that the initiator allocates for sense data. If a
0 is set here, sense data is not transferred, but this is not treated as an error.
The target terminates the DATA IN phase when it has transferred either the
bytes of sense data specified in this field or all of effective sense data.

(2) Sense data: DATA IN phase (target Æ initiator)

The target creates sense data if its status is B©00001π (CHECK CONDITION) or if a
BUS FREE error has occurred. This scanner creates sense data when any of the
errors described later is encountered.

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aaaaaaaaaaa

2

aaaaaaaaaaa

(Reserved)

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

0

aaaaaaaaaaa

a
a
a

The sense data on this scanner is shown in the following illustration.

4 $ 30

Byte 0

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a

a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

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a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

aaaaaaaaaaaaa
a

a

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a

aaaaaaaaaaaaa

a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

aaaaaaaaaaa
aaaaaaaaaaa

7

Valid

a

aaaaaaaaaaa

a

aaaaaaaaaaa

6

a

aaaaaaaaaaa

a

aaaaaaaaaaa

5

aaaaaaaaaaa
aaaaaaaaaaa

4

a

aaaaaaaaaaa

a

aaaaaaaaaaa

3

Error code

aaaaaaaaaaa
aaaaaaaaaaa

2

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

aaaaaaaaaaa
aaaaaaaaaaa

0

a
a

1

2

3

(MSB)

6

7

8 (MSB)

B

C

D

E

F

SKSV

10

11

FM

EOM ILI

Command>specific information byte

Segment number

(Reserved)

Information bytes

Additional sense length

Additional sense code

Additional sense code qualifier

Field replaceable unit code

Sense>key specific bytes

Sense key

(LSB)

(LSB)

a. Valid: Byte 0

Indicates whether or not the INFORMATION BYTES field is as specified by
ANSI. This scanner returns B©1π (™specified by ANSI∫ ).

b. Error code: Byte 0

Differentiates between current error or deferred error. This scanner returns
X©70π (™CURRENT ERROR∫ ).

c. Segment number: Byte 1

This scanner does not support SEGMENT NUMBER. This scanner returns
X©00π.

d. FM (file mark) : Byte 2

This scanner does not support FM. This scanner returns B©0π.

e. EOM (end of medium) : Byte 2

Indicates the completion of window reading: 1 when completed, 0 when not
completed

4 $ 31

f. ILI (incorrect length indicator) : Byte 2

Indicates that an error in logical block length has been detected

g. Sense key: Byte 2

Indicates the logical unit status using a sense key. This scanner supports the
sense keys shown in the following table:

Sense key Status of logical unit

!!0 NO SENSE

The logical unit has no information to be specifically described in a
sense key. This status occurs because either a command has succeeded,
or because a command has terminated in the CHECK CONDITION
status since the ILI bit has been set to 1.

!!2 NOT READY

The specified logical unit cannot be accessed.

!!3 MEIDUM ERROR

A command has terminated because of a trouble with the medium.
Typical causes of this error with this scanner are that the ADF paper
chute is empty, paper is jammed in the ADF, or the ADF cover has been
opened.

!!4 HARDWARE ERROR

An unrecoverable error was detected.

!!5 ILLEGAL REQUEST

An illegal parameter exists either in a command (CDB), or in a group of
parameters sent in the DATA OUT phase following a command.

!!6 UNIT ATTENTION

The target has been reset.

!!B ABORTED COMMAND

The target has aborted a command.

h. Information bytes: Bytes 3 to 6

The information in this field is effective if ILI is 1. This scanner returns the
remainder (2πs complement for any negative value) so the requested transfer
amount subtracted by the actual transfer amount.

i. Additional sense length: Byte 7

Specifies the number of sense bytes that follows. Even if all additional sense
bytes cannot be tranferred because the allocation length in CDB is small, the
value in this field is not adjusted to indicate the remaining data. This scanner
always assumes X©0Aπ.

4 $ 32

j. Command>specific information bytes: Bytes 8 to B

On this scanner, this field is not supported and is fixed to X©00000000π.

k. Additional sense code, additional sense code qualifier: Bytes C and D

A combination of these fields specifies detailed information about the error
reported in the sense key. This scanner reports the following information:

Sense

key

Additional

sense code

Additional

sense code

qualifier

Description

0 00 00 No> sense

2 00 00 Not ready

2 80 01 Interlock switch is opened

3 80 01 Jam

3 80 02 ADF cover open

3 80 03 Document chuter empty of paper

3 80 04 Detects job separation sheet

(See Appendix A.5)

4 80 01 Blown fuse for FB motor

4 80 02 Blown fuse for heater

4 80 03 Blown lamp fuse

4 80 04 Blown fuse for ADF motor

4 80 05 Mechanical alarm

4 80 06 Optical alarm

4 44 00 Abnormal internal target

4 47 00 SCSI parity error

5 20 00 Invalid command

5 24 00 Invalid field in CDB

5 25 00 Unsupported logical unit

5 26 00 Invalid field in parameter list

5 2C 02 Wrong window combination

6 00 00 UNIT ATTENTION

B 43 00 Message error

B 80 01 Image transfer error

4 $ 33

l. Sense>key specific bytes: Bytes F to 11

This field is reserved on this scanner.

(X©00000000π must not be expected.)

4.4.5 SEND DIAGNOSTIC command

The following table shows the normal sequence of the SEND DIAGNOSTIC
command when used with this scanner.

Step Bus phase Initiator operation ¨ Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 MESSAGE OUT Selects logical unit Æ

5 COMMAND Specifies SEND

Æ Performs self>test
DIAGNOSTIC
(CDB)

6 STATUS ¨ Reports GOOD status

7 MESSAGE IN ¨ Reports message (Command

Complete)

Releases BSY signal

8 BUS FREE

(1) SEND DIAGNOSTIC command: COMMAND phase (initiator Æ target)

The SEND DIAGNOSTIC command is used by an initiator to request a target or
logical unit for self>test. Two types of self>diagnostic are: (a) the self>test performed
by the unit itself, and (b) the test conducted according to the instruction data from
the initiator.

This scanner supports the self>test only.

The results of self>test are reported using the status and sense data.

The CDB of this command is shown in the following illustration.

4 $ 34

Byte 0

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a

a

a

a

a

a

a

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a

a

a

a

a

a

a

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a

a

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a

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a

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a

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a

a

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a

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a

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a

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a

a

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a

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a

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a

aaaaaaaaaaa
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7

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

6

a

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a

aaaaaaaaaaa

a

aaaaaaaaaaa

5

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

a

aaaaaaaaaaa

a

4

aaaaaaaaaaa

3

a

aaaaaaaaaaa

Operation code X©1Dπ

aaaaaaaaaaa
aaaaaaaaaaa

2

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

0

aaaaaaaaaaa

a
a
a

1

2

3

Logical unit number

(MSB)

PF SLFTST D0 U0

(Reserved)

(Reserved)

Parameter list length

4

5

Control byte

a. PF (page format) : Byte 1

This scanner ignores PF.

b. SLFTST (self test) : Byte 1

This value is 1 on this scanner.

c. DO (device offline), UO (unit offline) : Byte 1

This scanner ignores DO and UO.

d. Parameter list length: Bytes 3 to 4

(LSB)

This scanner does not support parameter list length.

(2) Contents of self>test

The contents of self>test shall be an equivalent of NOP (Non Operation), provided
that CHECK CONDITION is reported if error information is withheld in the unit.

(3) Response

This scanner reports as follows:

a. Normal

The GOOD status is returned.

f Status: B©00000π (GOOD)
f Sense key: X©0π (NO SENSE)

b. Abnormal

If error information is being withheld, the following status is returned:

f Status: B©00001π (CHECK CONDITION)
f Sense key: Error information being withheld

4 $ 35

4.4.6 TEST UNIT READY command

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a

The following table shows the normal sequence of the TEST UNIT READY
command when used with this scanner.

Step Bus phase Initiator operation ¨ Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 MESSAGE OUT Selects logical unit Æ

5 COMMAND Specifies TEST

Æ
UNIT READY
(CDB)

6 STATUS ¨ Reports GOOD status

7 MESSAGE IN ¨ Reports message (Command

Complete)

Releases BSY signal

8 BUS FREE

(1) TEST UNIT READY command: COMMAND phase (initiator Æ target)

The TEST UNIT READY command checks whether a logical unit is ready. This
command does not request self>test. The acknowledgment of this command reported
using the status and sense data.

The CDB of this command is shown in the following illustration.

Byte 0

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a

7

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a

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a

6

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5

a

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4

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a

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3

a

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aaaaaaaaaaa

2

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a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

Operation code X©00π

aaaaaaaaaaa

0

aaaaaaaaaaa

a
a

1

Logical unit number

(Reserved)

2

3

(Reserved)

4

5

Control byte

4 $ 36

(2) Response

This scanner reports as follows:

a. Normal:

f Status: B©00000π (GOOD)
f Sense key: X©0π (NO SENSE)

b. Abnormal:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©0π, X©2π, X©3π, X©4π, X©5π, X©6π, or X©Bπ

4.4.7 SET WINDOW command

The following table shows the normal sequence of the SET WINDOW command
when used with this scanner.

Step Bus phase Initiator operation ¨Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 (MESSAGE OUT) Selects logical unit Æ

5

COMMAND

Specifies SET

Æ

Sets window

WINDOW (CDB)

6

DATA OUT

Specifies window

Æ

data

7 STATUS ¨ Reports GOOD status

8 MESSAGE IN ¨ Reports message

(Command Complete)

Releases BSY signal

9 BUS FREE

4 $ 37

(1) SET WINDOW command: COMMAND phase (initiator Æ target)

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a

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a

The SET WINDOW command is used to set a window.

The CDB of this command is shown in the following illustration.

Byte 0

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aaaaaaaaaaa

a

aaaaaaaaaaa

a

7

aaaaaaaaaaa

a

aaaaaaaaaaa

a

6

aaaaaaaaaaa

5

aaaaaaaaaaa
aaaaaaaaaaa

4

a

aaaaaaaaaaa

a

aaaaaaaaaaa

3

aaaaaaaaaaa
aaaaaaaaaaa

2

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

Operation code X©24π

1

Logical unit number

(Reserved)

2

(Reserved)

5

6 (MSB)

7

Transfer length

8

9

Control byte

a. TRANSFER LENGTH: Bytes 6 to 8

Specifies the number of window data bytes sent in the DATA OUT phase.
A zero (0) means that no data is to be transferred; this situation is not
considered an error.

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aaaaaaaaaaa

0

(LSB)

a
a

If the number of bytes is not enough (less than 48) to set a window, the scanner
returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

4 $ 38

(2) Window data: DATA OUT phase (initiator Æ target)

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a

a

a

a

a

Window data specifies the details of a window. Window data contains a head and
one or more window descriptor block. Each window descriptor block specifies the
attributes of a window (size, position, scan mode, etc.).

If a target receives the SET WINDOW command when it already has window data,
the target discards all of the current window data and validates the newly received
data.

a. Header

Window data (header) is shown in the following illustration.

Byte 0

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a

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a

7

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a

aaaaaaaaaaa

a

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a

6

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5

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

4

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a

aaaaaaaaaaa

a

aaaaaaaaaaa

3

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

2

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

(Reserved)

5

aaaaaaaaaaa

(MSB)

6

aaaaaaaaaaa

a
a

Window descriptor block length

7

(a) Window descriptor block length: Bytes 6 and 7

Specifies the length in bytes of a window descriptor block. Each block has
the same length. The allowable range of length is between 40 and 248
bytes. For a length outside this range, this scanner returns the following
error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

b. Window descriptor block

Window parameter data (window descriptor block) is shown in the following
illustration.

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0

aaaaaaaaaaa

aaaaaaaaaaa

(LSB)

aaaaaaaaaaa

a
a
a

a
a

4 $ 39

Byte 0

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a

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a

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aaaaaaaaaaaaa

a

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a

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a

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a

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a

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a

a

a

a

a

11

12

15

16

17

18

19

1A

1B

1C

1D

1E

1F

20

21

22

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

1

aaaaaaaaaaa

2

aaaaaaaaaaa

3

aaaaaaaaaaa

4

aaaaaaaaaaa

5

6

(MSB)

9

A

(MSB)

D

E

(MSB)

(MSB)

aaaaaaaaaaa
aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

7

(MSB)

(MSB)

(MSB)

RIF

(MSB)

a

aaaaaaaaaaa

a

aaaaaaaaaaa

6

a

aaaaaaaaaaa

a
a

a
a

a
a

a
a
a

a

aaaaaaaaaaa

a

aaaaaaaaaaa

5

a

aaaaaaaaaaa

(Reserved)

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

a

aaaaaaaaaaa

a

4

aaaaaaaaaaa

3

a

aaaaaaaaaaa

Window identifier

(Reserved)

X resolution

Y resolution

Upper left X

Upper left Y

Width

Length

Brightness

Threshold

Contrast

Image composition

Bit per pixel

Halftone pattern

Bit ordering

Compression type

Compression argument

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aaaaaaaaaaa

2

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

Padding type

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aaaaaaaaaaa

0

aaaaaaaaaaa

Auto

aaaaaaaaaaa

(LSB)

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

(LSB)

aaaaaaaaaaa

(LSB)

(LSB)

(LSB)

(LSB)

(LSB)

aaaaaaaaaaa

(LSB)

aaaaaaaaaaa

a
a
a

a
a

a
a
a

a
a

(Reserved)
27

28

Vendor unique parameter

n

4 $ 40

(a) Window identifier: Byte 0

Specifies a unique value that identifies a window. The value may be 0 to

255. If two or more window identifiers are specified for a single set of
window data, the most recently specified identifier is validated.

This scanner allows only one window to be set. Therefore, only 0 may be
specified in this field. If a value other than 0 is specified, this scanner
returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(b) Auto: Byte 1

This scanner does not support Auto. If a value other than 0 is specified, this
scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(c) X, Y resolution (XR, YR) : Bytes 2 to 3 and 4 to 5

Specified here are the resolutions in the horizontal (X) and vertical (Y)
scanning directions, in pixels per inch. If 0 is specified, the default value
(400 dpi) is assumed.

If the image processing option is not equipped, the acceptable resolution
value is limited to 0, 400, 300, 240 or 200. If the option is equipped, the
acceptable value is in the range from 50 to 1600 dpi in steps of 1 dpi. If a
value is specified that does not comply with these conditions, this scanner
returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(d) Upper left X, Y (ULX, ULY) : Bytes 6 to 9, A to D

Specified here are the X and Y coordinates of the upper>left corner of the
window. The coordinates are expressed in units of 1/1200 inches relative to
the upper>left corner of the maximum scan area.

If the ULX or ULY value is outside the maximum scan area of this scanner,
this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

4 $ 41

(e) Width, length (W, L) : Bytes E to 11, 12 to 15

Specifies here are the width and length of the window, in units of 1/1200
inches. If the W or L value is outside the maximum scan area of this
scanner, the following error information is returned:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

The same error is also returned if this scanner is set to less than one raster
line for vertical scanning or to less than two bytes for horizontal scanning.

Notes:

1. ULX, ULY, W, L versus maximum scan area:

0 < (ULX + W) e 14592 (in 1/1200 inches)

0 < (ULY + L) e 20736 (in 1/1200 inches)

2. Conditions for horizontal scanning:

9 e [XR ¥ W/1200] e 4864 (dot)

(Values under 0 in [ ] are omitted.)

3. Conditions for vertical scanning:

1 e [YR ¥ L/1200] e 6912 (line)

(Values under 0 in [ ] are omitted.)

4. Conditions for horizontal and vertical scanning (in 1/1200 inches):

13200 (11∫) < (ULX + W) e 14592

When this condition is satisfied, following condition must also be
satisfied (only for CMPII option equipped).

0 < (ULY + L) e 19842 (A3 length)

4 $ 42

(f) Brightness: Byte 16

Specifies the brightness for halftone (Byte 19=X©01π) output.

Value (Hex) Brightness

00 Default: same as value X©80π.

01

80

FF

Brightest

Normal

Darkest

(g) Threshold: Byte 17

Specifies the threshold value for the line art (Byte 19=X©00π).

Value (Hex) Threshold

00 Default:

f without IPCII option

- Same as value X©80π.

f with IPCII option

- Dynamic threshold, or simplified
dynamic threshold

01

80

Brightest

Normal

FF

Darker

(h) Contrast: Byte 18

Specifies the contrast value for the line art or the halftone.

Value (Hex) Contrast

00 Default: same as value X©80π.

01

80

FF

Mostly soft

Normal

Mostly sharp

4 $ 43

(i) IMAGE COMPOSITION: Byte 19

Value (Hex) Image output

00 Line art (Binary image)

01 Halftone (Binary image)

02 Gray scale

03 to FF (Reserved)

If reserved value is specified, this scanner returns the following error
information as follows:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(j) Bit per pixel: Byte 1A

Specifies the number of bits per pixel.

This scanner supports X©01π, and reserves X©00π and X©02π to X©FFπ.

If reserved value is specified, this scanner returns the following error
information as follows:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(k) Halftone type: Byte 1B

Value (Hex) Halftone method

00 Default This scanner applies dither.

01 Dither

02 Error diffusion

03 to FF (Reserved)

If reserved value is specified, this scanner returns the following error
information as follows:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

4 $ 44

(k) Halftone Pattern: Byte 1C

Value (Hex) Halftone pattern

00 Dither pattern 0

01 Dither pattern 1

02 Dither pattern 2

03 Dither pattern 3

04 to 7F (Reserved)

80 to 84 User down>load pattern

85 to FF (Reserved)

If reserved value is specified, this scanner returns the following error
information as follows:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(l) RIF (reverse image format) : Byte 1D, bit 7

This bit is used when the binary image data output is being reversed.

0: Output is not reversed
1: Output is reversed

If a 1 is specified for this scanner without the image processing II option,
this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(m) Padding type: Byte 1D, bits 0 to 2

This scanner does not support Padding type. If a value other than B©000π is
specified, this scanner returns following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(n) Bit ordering: Bytes 1E to 1F

This scanner does not support bit ordering. If a value other than X©0000π is
specified, this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

4 $ 45

(o) Compression type, argument: Bytes 20 to 21

Specifies the compression method that is applied before the read data is sent
to the initiator

TYPE (Byte 20) argument (Byte 21)

00 % Not compressed Reserved
01 % MH Reserved
02 % MR K parameter
03 % MMR Reserved

When the CMPII option is not connected, if a value other than the ™Not
compressed∫ is specified, this scanner returns the following error
information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

4 $ 46

28
29

2A

2B
2C

2D

2E
2F

30
31
32
33
34
35
36

39

3A

3D

3E
3F

(p) Vender unique parameter (byte 28 and after)

Specifies, in byte 28 and after, a vender unique parameter, including items
such as subwindow list, outline, emphasis, automatic separation, mirroring,
and paper size, as required. This parameter is specified in the following
format. This parameter does not need data until byte 3F. (It is unnecessary
to transfer the unnecessary parameter, but the intermediate parameter
cannot be omitted.)

7 6 5 4 3 2 1 0

Vender unique identification code

pattern

Outline extraction

Image emphasis

Automatic separation

Mirror image

Variance rate

DTC mode

Not supported

White level follower mode

(MSB)

(MSB)

(MSB)

Subwindow list

Paper size

Paper width X

Paper length Y

DTC selection

Reserved

(LSB)

(LSB)

(LSB)

• Vender unique identification code: byte 28
Specifies a vender unique identification code. For this scanner, X‘00’

must be specified. If other value is specified, this scanner returns the
following error information:

• Status: B‘00001’ (CHECK CONDITION)

• Sense key: X‘5’ (ILLEGAL REQUEST)

4 – 47

f d pattern: Byte 29

Specifies the d pattern number for the line art or the halftone.

Value (Hex) d pattern

00 Default This scanner applies ™Normal∫.

01 Normal

02 Soft

03 Sharp

04 to 7F (Reserved)

80 to 84 User down>load d pattern

85 to FF (Reserved)

If reserved value is specified, this scanner returns the following error
information as follows:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

f Outline extraction: Byte 2A

Value (Hex) Meaning

00 Default This scanner not applies outline

extraction.

01 to 7F (Reserved)

80 Enable outline extraction. See note 1.

81 to FF (Reserved)

If reserved value is specified, this scanner returns the following error
information as follows:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

Note 1: If image processing II option is not provided, this scanner

will report as error.

4 $ 48

f Image emphasis: Byte 2B

This scanner is limited to three levels of emphasis and one level of
smoothing. These levels are specified as follows:

Value (Hex) Meaning

00 Without emphasis and smoothing

01 to 2F Low emphasis

30 to 4F Medium emphasis

50 to 7F High emphasis

80 to FF Smoothing

When the image processing II option is not provided, and this parameter
is specified, this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

f Automatic separation: byte 2C

Specifies the automatic separation for the window. When the automatic
separation is performed, X©80π is specified. When the automatic
separation is not performed, X©00π is specified. When the image
processing II option is not provided, and X©80π is specified, this scanner
returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

f Mirror image: byte 2D

Specifies the mirroring for the window. When the mirroring is
performed, X©80π is specified. When the image processing option II is not
provided and this parameter is specified, following error information is
responded:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

4 $ 49

f Variance rate: byte 2E

Specifies variance rate for simplified dynamic threshold.

Value (Hex) Variance rate

00 Default

01 to 1F Small

20 to 3F Small

40 to 5F

60 to 7F

80 to 9F Normal

A0 to BF

C0 to DF

E0 to FF Large

4 $ 50

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a

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

a

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f DTC mode: byte 2F

X©A6π is set when the power is turned on.

This byte is valid when IPC ¬ option is installed, and byte 3E is X©40π.

LSBMSB

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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

DTC

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Threshold curve

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

000 Light

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

001 For OCR

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

010 (Darken more and more)

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

011

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

100

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

101 Dark

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

110 Dark

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

111 Light

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Gradation

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

00 Ordinary image

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

10 High contrast image (Ex. Newspaper)

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Smoothing mode

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

00 For OCR

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

01 For Image scanner

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

10

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Not defined

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

11

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Filtering

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

0 : Ball>point pen mode

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

1 : Ordinary mode

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

For Image scanner

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4 $ 51

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0

f DTC mode: byte 30

X©20π is set when the power is turned on.

This byte is valid when the IPC ¬ is installed, and byte 3E is X©40π.

LSBMSB

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(Dynamic threshold mode setting)

4 $ 52

*1 When this bit is ™0∫, the output video data is black if the gradation of the video

data is equal to or larger than threshold. When this bit is ™1∫, the output video
data is white if the gradation of the video data is equal to or larger than
threshold.

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Binary data when the threshold equals video

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

data to be binary>coded. (*1)

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

0 : Output binary data is ™1∫ (Black)

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

1 : Output binary data is ™0∫ (White)

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Noise removing of 2¥2 matrix

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

0 : OFF

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

1 : ON

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Noise removing of 3¥3 matrix

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

0 : OFF

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

1 : ON

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Noise removing of 4¥4 matrix

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

0 : OFF

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

1 : ON

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Noise removing of 5¥5 matrix

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

0 : OFF

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

1 : ON

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Enables the noise removing bits (bits 1>4

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

when this bit is active).

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

0 : ON

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

1 : OFF

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

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f White level follower: byte 32

Value (Hex) Meaning

00 Default. White level follower depends on the

IMAGE COMPOSITION.

IMAGE

COMPOSITION

White level follower

Line art (X©00π) Enables white level follower

Halftone (X©01π) Disable

01 to 7F (Reserved)

80 Enables white level follower.

81 to BF (Reserved)

C0 Disables white level follower.

C1 to FF (Reserved)

If reserved value is specified, this scanner returns the following error
information as follows:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

f Subwindow list: bytes 33 and 34

Specifies the subwindow identifier for a subwindow included in the
window according to the specification in bytes 33 and 34. (For example;
X©0001π for subwindow 0, X©0002π for subwindow 1, X©0006π for
subwindows 1 and 2.)

On this scanner, four subwindows can be included in one window. Thus,
bits 0 to 3 of byte 34 can be specified. If other subwindows are specified,
this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

f Paper size: bytes 35

Specifies a paper size when the ADF is used. This parameter is valid
when the ADF is used. When the flat>bid being used, this parameter is
ignored.

When the ADF is used invalidate the paper size specification by
specifying X©00π in this parameter.

4 $ 53

7 6 5 4 3 2 1 0

0

Standard document size

0000 Undefined
0001 Undefined
0010 Undefined
0011 A3
0100! A4
0101 A5
0110! Double letter
0111! Letter
1000! Undefined
1001! Undefined
1010! Undefined
1011! Undefined
1100! B4
1101! B5
1110! Undefined
1111! Legal

Orientation

0: Portrait
1: Landscape

Document selection

00: Undefined
01: Undefined
10: Standard document size (bits 4 to 0 effective)
11: Nonstandard document size (bytes 36 to 3D effective)

If undefined value is specified this scanner return the following error
information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

f Paper width X, paper length Y: bytes 36 to 39, 3A to 3D

These parameters are valid when the nonstandard size is specified in
the paper size parameter (byte 35).

The paper width and length is specified in 1/1200 inches unit.

4 $ 54

Notes:

1. If the ADF is used and this parameter has not been specified, the paper is
scanned on the default paper size (A3) of this scanner.

2. The paper size specified here concerns the sheets loaded in the ADF.
The area specified by the WINDOW bytes 6 to 15 in the window data should
be equal to or smaller than the specified paper size.

3. The ADF for this scanner positions paper relative to the center.
Therefore, if paper size is not specified in the window data bytes 6 to 15, the
window cannot be accurately positioned for the paper.

4. This parameter is only effective for reading with the ADF.

f DTC SELECTION: byte 3E

DTC SELECTION BYTE

Byte 3E

b7 b6 b2b4 b3 b1 b0

b5

Reserved

DTC SELECTION

00: Default; Simplified DTC, if IPC II optioned.
01: Dynamic threshold
10: Simplified DTC, if IPC II optioned.
11: Reserved

If reserved value is specified, this scanner returns the following error
information as follows:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

Note:

Reserved

If simplified dynamic threshold is selected. (Byte 3E=X'00' or X'80'), variance
rate (byte 2E) is valid.

If dynamic threshold is selected (byte 3E=X'40'), DTC mode (byte 2F and 30)
are valid.

4 $ 55

4.4.8 SET SUBWINDOW command

The following table shows the normal sequence of the SET SUBWINDOW command
when used with this scanner.

Step Bus phase Initiator operation ¨Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 MESSAGE OUT Selects logical unit Æ

5

COMMAND

Specifies SET

Æ

Sets subwindow
SUBWINDOW
(CDB)

6

DATA OUT

Specifies

Æ

subwindow data

7 STATUS ¨ Reports GOOD status

8 MESSAGE IN ¨ Reports message

(Command Complete)

Releases BSY signal

9 BUS FREE

4 $ 56

(1) SET SUBWINDOW command: COMMAND phase (initiator Æ target)

aaaaaaaaaaaaa

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The SET SUBWINDOW command is used to set subwindows. If this command is
issued more than once, only the one issued directly before the READ command
becomes effective.

The SET SUBWINDOW command only works if the image processing II option is
equipped. If this command is received by a scanner without the image processing II
option, this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

The CDB of this command is shown in the following illustration.

Byte 0

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

a

aaaaaaaaaaa

a

7

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

a

6

aaaaaaaaaaa

5

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

4

aaaaaaaaaaa

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aaaaaaaaaaa

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aaaaaaaaaaa

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a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

2

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

Operation code X©C0π

1

Logical unit number (Reserved)

2

(Reserved)

5

6

(MSB)

7

Transfer length

8

9

Control byte

a. Transfer length: Bytes 6 to 8

Specifies the number of subwindow data bytes sent in the Data Out phase. A 0
means no data is to be transferred; it is not considered an error.

aaaaaaaaaaa
aaaaaaaaaaa

0

aaaaaaaaaaa

(LSB)

a
a
a

If the number of bytes is not enough to set a single subwindow, an error occurs.

(2) Subwindow data: DATA OUT phase (initiator Æ target)

Subwindow data specifies details of a subwindow.

Subwindow data contains one header and one or more subwindow descriptor blocks.
Each subwindow descriptor block specifies the attributes of a subwindow (such as
size, position, scan mode).

4 $ 57

Up to four subwindows

aaaaaaaaaaaaa

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#2#1 #4

Byte 0

Header

Subwindow descriptor block

a. Header

Subwindow data (header) is shown in the following illustration.

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

a

aaaaaaaaaaa

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7

aaaaaaaaaaa

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aaaaaaaaaaa

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aaaaaaaaaaa

a

6

aaaaaaaaaaa

5

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

4

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

3

a

aaaaaaaaaaa

(Reserved)

5

aaaaaaaaaaa

(MSB)

6

aaaaaaaaaaa

a
a

Window descriptor block length

7

(a) Subwindow descriptor block length: Bytes 6 and 7

Specifies the length in bytes of a subwindow descriptor block. Each block
has a same length. The allowable range of length is between 40 and 64
bytes. For a length outside this range, this scanner returns the following
error information:

aaaaaaaaaaa
aaaaaaaaaaa

2

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

0

aaaaaaaaaaa

aaaaaaaaaaa

(LSB)

aaaaaaaaaaa

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4 $ 58

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

b. Subwindow descriptor block

Subwindow data (window descriptor block) is shown in the following
illustration.

aaa
aaa
aaa
aaa
aaa
aaa
aaa

Byte 0

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11

12

15

16

17

18

19

1A

1B

1C

1D

1E

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

1

5

6

(MSB)

9

A

(MSB)

D

E

(MSB)

(MSB)

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

7

(MSB)

a

aaaaaaaaaaa

a

aaaaaaaaaaa

6

a

aaaaaaaaaaa

a
a
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a

aaaaaaaaaaa

a

aaaaaaaaaaa

5

a

aaaaaaaaaaa

(Reserved)RIF

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

a

aaaaaaaaaaa

a

4

aaaaaaaaaaa

3

a

aaaaaaaaaaa

Subwindow identifier

(Reserved)

Upper left X

Upper left Y

Width

Length

Brightness

Threshold

Contrast

Image composition

Bit per pixel

Halftone pattern

aaaaaaaaaaa
aaaaaaaaaaa

2

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

Padding type

aaaaaaaaaaa
aaaaaaaaaaa

0

aaaaaaaaaaa

(LSB)

(LSB)

(LSB)

(LSB)

aaaaaaaaaaa

(LSB)

aaaaaaaaaaa

a
a
a

a
a

(Reserved)

27

28

Vender unique parameter

n

(a) Subwindow identifier: Byte 0

Specifies a unique value that identifies a subwindow. If two or more
subwindow identifiers are specified for a single set of subwindow data, the
most recently specified identifier is validated.

This scanner allows up to four subwindows for each main window to be set.
Therefore, a value 0 to 3 is specified in this field. If a value 4 or greater is
specified, this scanner returns the following error information:

4 $ 59

f Status: B©00001π (CHECK CONDITION)

aaaaaaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

a

f Sense key: X©5π (ILLEGAL REQUEST)

(b) Upper left X, Y (ULX, ULY) : Bytes 6 to 9, A to D

Specified here are the X and Y coordinates of the upper>left corner of the
subwindow. The coordinates are expressed in units of 1/1200 inches relative
to the upper>left corner of the maximum scan area.

(c) Width, length (W, L) : Bytes E to 11, 12 to 15

Specified here are the width and length of the subwindow, in units of 1/1200
inches.

Notes:

1. If the area specified for any subwindow does not fit in the area of the main
window, the portion of the area outside the main window area is ignored.
Only the portion where the main and subwindow overlap (shown hatched) is
processed.

Main Window

Sub Window

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

Sub window

aaaaaaaaaaa
aaaaaaaaaaa

a
a
a
a
a
a

2. If subwindows in a main window overlap with each other as a result of the
values ULX, ULY, W and L specified here, this scanner returns the
following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

Example:

Main Window

Sub
window

¨ Overlapped portion

Sub
window

4 $ 60

(d) Brightness: Byte 16

Specifies the brightness for half tone. For details, see the SET WINDOW
command.

(e) Threshold: Byte 17

Specifies the threshold value for line art. For details, see the SET
WINDOW command.

(f) Contrast: Byte 18

Specifics the contrast value for half tone or line art. For details, see the SET
WINDOW command.

(g) Image composition: Byte 19

Specifies the type of image to be read. The following values are supported by
this scanner:

X©00π : Line art
X©01π : Half tone

If a value X©02π or greater is specified, this scanner returns the following
error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(h) Bit per pixel: Byte 1A

Specifies the number of bits per pixel. On this scanner, X©01π (1 bit) is
specified since only binary data is valid for subwindows. If any other value
is specified, this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(i) Half tone pattern: Byte 1B and 1C

Specify the halftone method and dithered pattern. For details, see the SET
WINDOW command.

(j) RIF (reverse image format): Byte 1D

This bit is used to reverse the binary image data output.

0: Output is not reversed
1: Output is reversed

4 $ 61

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a

aaa

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28

aaa
aaa
aaa
aaa

29

aaa
aaa
aaa
aaa

2A

aaa
aaa
aaa
aaa

2B

aaa
aaa
aaa
aaa
aaa

2C

aaa
aaa
aaa
aaa

2D

aaa
aaa

2E

aaa
aaa
aaa

2F

aaa
aaa
aaa

30

aaa
aaa

31

aaa
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aaa

32

aaa
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33

aaa
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34

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35

aaa
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36

aaa
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37

aaa
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38

aaa
aaa

39

aaa
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3A

aaa
aaa

3B

aaa
aaa
aaa

3C

aaa
aaa
aaa

3D

aaa
aaa
aaa
aaa

3E

(k) Vender unique parameter: byte 28 and after

Specifies, in byte 28 and after, a vender unique identification parameter,
including items such as outline, emphasis, and automatic separation, as
required. This parameter is specified in the following format. This
parameter does not need data until byte 3E. (It is unnecessary to transfer
the unnecessary parameter but the intermediate parameter cannot be
omitted.)

Vender unique identification code

d Pattern number

Outline extraction

Image emphasis

Automatic separation

Reserved

Variance rate

Reserved

DTC selection

f Vender unique identification code: byte 28

Specifies a vender unique identification code. For this scanner, X©00π

4 $ 62

must be specified. If other value is specified, this scanner returns the
following error information:

f Status: 00001 (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

f d pattern: byte 29

Specifies d pattern number for subwindow. For details, see the
explanation of the SET WINDOW command.

f Outline extraction: byte 2A

Specifies the outlining for the subwindow. For details, see the
explanation of the SET WINDOW command.

f Image emphasis: byte 2B

Specifies the emphasis for the subwindow. For details, see the
explanation of the SET WINDOW command.

f Automatic separation: byte 2C

Specifies the automatic separation for the subwindow. For details, see
the explanation of the SET WINDOW command.

f Variance rate: byte 2E

Specifies variance rate for simplified dynamic threshold. For details,
see the explanation of the SET WINDOW command.

f DTC selection: byte 3E

Simplified DTC parameter

Byte 3E

b7 b6 b2b4 b3 b1 b0

b5

Reserved

Reserved

DTC SELECTION

00: Default; Simplified DTC, if IPC II optioned.
01: Reserved
10: Reserved
11: Reserved

Note:

Dynamic threshold cannot select for subwindow.

4 $ 63

4.4.9 OBJECT POSITION command

The following table shows the normal sequence of the OBJECT POSITION
command when used with this scanner.

Step Bus phase Initiator operation ¨ Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 MESSAGE OUT Selects logical unit Æ

5 COMMAND Specifies OBJECT

Æ Loads/unloads paper (ADF)

POSITION (CDB)

6 STATUS ¨ Reports GOOD status

7 MESSAGE IN ¨ Reports message (Command

Complete)

Releases BSY signal

8 BUS FREE

(1) OBJECT POSITION command: COMMAND phase (initiator Æ target)

The OBJECT POSITION command controls the sheets in the ADF. When the ADF
is used for reading, document sheets are loaded with this command before the
READ command is issued.

The CDB of this command is shown in the following illustration.

4 $ 64

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a

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7

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a

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a

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a

6

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5

a

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aaaaaaaaaaa

4

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a

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a

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3

a

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Byte 0 Operation code ©X31π

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2

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

0

aaaaaaaaaaa

a
a
a

1

2

Logical unit number

(MSB)

3

4

5

8

9

a. Position type: byte 1

Specifies positioning functions

Bit 2 Bit 1 Bit 0 POSITION TYPE

0 0 0 Unload object
0 0 1 Load object

(Reserved) Position type

(Count)

(LSB)

(Reserved)

Control byte

This scanner supports the unload object and load object functions only. If an
other value is specified, this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(a) Unload object

This scanner unloads a document from the ADF. If the ADF chuter does not
contain a document when this command is received, this scanner does not
generate an error but returns the GOOD status.

The unload object function is not vital to the scanner. After completion of
reading with the READ command, the scanner automatically unloads the
document.

(b) Load object

This scanner loads the document from the ADF paper chute. If a document
is already loaded in the ADF when this command is received, this scanner
does not generate an error but returns the GOOD status.

4 $ 65

b. Count: bytes 2 to 4

This scanner does not support this field. If a value other than 0 is specified, this
scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

(2) Response

This scanner reports the OBJECT POSITION command as follows:

a. Normal

The GOOD status is returned.

f Status: B©00000π (GOOD)
f Sense key: X©0π (NO SENSE)

b. Abnormal

The CHECK CONDITION status is returned and sense data is created.

f Status: B©00001π (CHECK CONDITION)

f Send key: X©3π (MEDIUM ERROR)

(The cause of the error is jammed paper, an opened ADF cover, or an empty
paper supply.)

4 $ 66

(3) Command sequence to select the ADF or FB.

Read on ADF

Read on FB

OBJECT POSITION command

(Load object)

READ command

READ command

OBJECT POSITION command

(Unload object)

Note:

If the document is shorter than the window area specified by the SET WINDOW
command, the deficient portion is supplemented by white data. The deficient
portion is supplemented so that the data covers the entire specified window area
and is tranferred.

When the disconnecting is enabled by the IDENTIFY message, the
disconnecting is performed during a loading or unloading operation and the
reconnecting is performed after the operation is complete.

4 $ 67

4.4.10 SEND command

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a

The following table shows the normal sequence of the SEND command when used
with this scanner.

Step Bus phase Initiator operation ¨ Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 MESSAGE OUT Selects logical unit Æ

5 COMMAND Specifies SEND

Æ

(CDB)

6 DATA OUT Æ Transfer data

7 STATUS ¨ Reports GOOD status

8 MESSAGE IN ¨ Reports Command Complete

Releases BSY signal

9 BUS FREE

(1) SEND command: COMMAND phase (initiator Æ target)

The SEND command is used by an initiator to send data to a target. The CDB of
this command is shown in the following illustration.

Byte 0

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1

2

a

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7

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6

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5

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a

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a

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3

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Operation code X©2Aπ

Logical unit number RelAdr(Reserved)

Transfer data type

a

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a

2

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1

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aaaaaaaaaaa

0

a
a

3

4

aaaaaaa
aaaaaaa

(MSB)

a
a

(Reserved)

Transfer identification

aaaaaaa

a

5

6

7

8

9

aaaaaaa

(MSB)

aaaaaaa

a
a

Transfer length

Control byte

(LSB)

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aaaaaaa

(LSB)

a

a
a

4 $ 68

a. Transfer data type: Byte 2

Specifies the type of data to be transferred between the initiator and target.
This scanner supports X©02π (dither pattern) and X©03π (d pattern). If any other
value is specified, this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

b. Transfer identification: Byte 4 to 5

Identifies each data. On this scanner, this field is used to differentiate with a
value from 0 to 4 downloadable dither patterns. If a value 5 or larger is
specified, this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

c. Transfer length (TL) : Bytes 6 to 8

Specifies the bytes of data to be transferred by the initiator.

If TL = 0, no data is transferred. This is not regarded as an error.

If TL > 1034 (larger than a dither pattern of 32 ¥ 32), this scanner returns the
following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

4 $ 69

(2) SEND data (dither pattern): DATA OUT phase (initiator Æ target)

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Byte 0

A

B

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1

2

3

(MSB)

4

5

(MSB)

6

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7

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aaaaaaa

aaaaaaa
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6

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a

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a

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5

a

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aaaaaaaaaaa
aaaaaaaaaaa

4

aaaaaaaaaaa

a
a
a

(Reserved)

X>direction dither matrix size

Y>direction dither matrix size

(Reserved)

Dither matrix data

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3

aaaaaaaaaaa

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2

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a

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a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

0

aaaaaaaaaaa

aaaaaaa

(LSB)

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aaaaaaa
aaaaaaa

(LSB)

a
a
a

a. Dither matrix size

Specifies the size of dither matrix to be downloaded. This scanner supports 1¥1
to 32¥32. If any other value is specified, this scanner returns the following
error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

b. Dither matrix data

Specifies the values of dither matrix in the range of 0 to 255, starting from the
upper> left corner. (Value 0 represents the darkest, with 255 the brightest.)

The number of data vlaues is the sum of the X> and Y>direction elements as
specified in the matrix size fields. If the number of data values differs from that
sum, this scanner returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

4 $ 70

Example:

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aaaaaaaaaaa
aaaaaaaaaaa

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a

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a

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aaaaaaaaaaa
aaaaaaaaaaa

aaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

a

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

aaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

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aaaaaaaaa

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a

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aaaaaaaaa

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a

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aaaaaaaaa

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aaaaaaaaa

a

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aaaaaaaaaaa
a

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a

aaaaaaaaa

a

a

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a

DATA OUT phase

aaaaa

aaaaa

a

aaaaa

aaaaa

a

1

0

00

00

d11 d12 d13 d14 d15 d16 d17 d18

d21 d22 d23 d24 d25 d26 d27 d28

d31 d32 d33 d34 d35 d36 d37 d38

d41 d42 d43 d44 d45 d46 d47 d48

d51 d52 d53 d54 d55 d56 d57 d58

d61 d62 d63 d64 d65 d66 d67 d68

d71 d72 d73 d74 d75 d76 d77 d78

d81 d82 d83 d84 d85 d86 d87 d88

aaaaa

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aaaaa

a

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aaaaa

aaaaa

aaaaa

a

aaaaa

2

00

aaaaa

3

00

aaaaa

4

00

a

aaaaa

5

08

aaaaa

6

00

aaaaa

7

08

aaaaa

8

00

a

aaaaa
aaaaa

9

00

aaaaaaa

A

aaaaaaa

d11

12

d21

aaaaaaa
aaaaaaa

42

aaaaaaa

d81

a

aaaaaaaaa

B

a

aaaaaaaaa

d12

13

d22

a

aaaaaaaaa

a

aaaaaaaaa

43

a

aaaaaaaaa

d82

aaaaaaa

C

aaaaaaa

d13

14

d23

aaaaaaa
aaaaaaa

44

aaaaaaa

d83

a

aaaaaaaaa

D

a

aaaaaaaaa

d14

15

d24

a

aaaaaaaaa

a

aaaaaaaaa

45

a

aaaaaaaaa

d84

aaaaaaa

E

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d15

16

d25

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aaaaaaa

46

aaaaaaa

d85

a

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a

aaaaaaa

a

aaaaaaa

a

aaaaaaa

a

aaaaaaa

F

d16

17

d26

47

d86

a

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10

a

aaaaaaaaa

d17

18

d27

a

aaaaaaaaa

a

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48

a

aaaaaaaaa

d87

aaaaaaa

11

aaaaaaa

d18

19

d28

aaaaaaa
aaaaaaa

49

aaaaaaa

d88

a
a

a
a
a

4 $ 71

(3) SEND data (d pattern): DATA OUT phase (initiator Æ target)

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a

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a

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a

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a

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a

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a

a

a

Byte 0

1

Reserved

2

3

4

X'0100'

5

6

X'0100'

7

8

Reserved

9

A

to

n

Transfer
order Æ

X Æ

Y Æ

d pattern data

(256 byte)

f d pattern data

The d pattern data must be transferred in the following order;

a

a

a

a

a

a

a

a

aaa

a

a

a

a

a

a

a

a

a

a

aaa

a

aaa

a

12

a

aaa

a

a

aaa

a

0B

a

aaa

a

00

1

2

3

4

5

6

7

8

9

10

09

11

a

a

aaa

a

a

aaa

0A

a

a

aaa

a

a

a

a

a

a

a

a

aaa

a

a

a

a

a

a

a

a

a

a

a

a

a

a

a

a

aaa

a

a

a

a

a

a

a

01

02

03

04

05

a

a

a

a

a

a

a

a

aaa

06

a

a

a

a

07

a

08

a

a

a

a

Conversion density corresponding to density

256 bytes

(Black) FF

Y

aaaaa

251

aaaaa

aaaaa

FA

aaaaa

aaa

252

aaa

aaa

FB

aaa

a

253

a

a

FC

a

aaa
aaa

aaa
aaa

a

254

a

a
a

aaa
aaa

aaa

FD

aaa

a
a

a
a

aaaaa

255

aaaaa

aaaaa

FE

aaaaa

aaa

256

aaa

aaa

FF

aaa

a
a

a
a

Conversion

density

00

00

Scanner read density FF (Black)

X

4 $ 72

4.4.11 READ command

The following table shows the normal sequence of the READ command when used
with this scanner.

Step Bus phase Initiator operation ¨ Æ Target operation

1 BUS FREE Verifies bus free

2 ARBITRATION Obtains bus>usage

right

3 SELECTION Selects target Æ

Drives BSY signal

4 MESSAGE OUT Selects logical unit Æ

5 COMMAND Specifies READ

Æ Reads document

(CDB)

6 DATA IN ¨ Transfers image data

7 STATUS ¨ Reports GOOD status

8 MESSAGE IN ¨ Reports message (Command

Complete)

Releases BSY signal

9 BUS FREE

(1) READ command: COMMAND phase (initiator Æ target)

The READ command is used by an initiator to request a target for transfer of data.
Upon receiving this command, the target returns scan data to the initiator.

The CDB of this command is shown in the following illustration.

4 $ 73

Byte 0

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a

a

a

a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

a

a

aaaaaaaaaaaaa
a

a

a

a

a

a

aaaaaaaaaaaaa

a

a

a

a

a

a

a

aaaaaaaaa

a

a

a

a

a

a

a

aaaaaaaaa

a

a

a

a

a

a

a

aaaaaaaaa

a

a

a

a

a

aaaaaaaaa

a

a

a

a

a

aaaaaaaaaaa
aaaaaaaaaaa

7

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

6

a

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

5

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa
aaaaaaaaaaa

a

aaaaaaaaaaa

a

4

aaaaaaaaaaa

3

a

aaaaaaaaaaa

Operation code X©28π

aaaaaaaaaaa
aaaaaaaaaaa

2

aaaaaaaaaaa

a

aaaaaaaaaaa

a

aaaaaaaaaaa

1

a

aaaaaaaaaaa

aaaaaaaaaaa
aaaaaaaaaaa

0

aaaaaaaaaaa

a
a
a

1

2

3

4

Logical unit number RelAdr(Reserved)

Data type code

(Reserved)

aaaaaaa

a

aaaaaaa

a

(MSB)

aaaaaaa

a

Data type qualifier

5

aaaaaaa

a

(MSB)

6

aaaaaaa

a

7

Transfer length

8

9

Control byte

a. Data type code: Byte 2

Specifies the type of data to be transferred between the initiator and target.
This scanner supports X©00π (image data), X©80π (pixel size), and X©81π
(detected paper information) only. If any other value is specified, this scanner
returns the following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

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(LSB)

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(LSB)

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b. Data type qualifier: Bytes 4 to 5

This scanner requires specifying byte 4 = X©00π and byte 5 = window
identifier. If the window identifier specified in byte 5 has not been declared by
the DEFINE WINDOW PARAMETERS command, this scanner returns the
following error information:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©5π (ILLEGAL REQUEST)

c. Transfer length (TL) : Bytes 6 to 8

Specifies the bytes of storage area that the initiator has allocated for the data to
be transferred.

If TL = 0, no data is transferred. This is not assumed an error.

The target does not transfer more data than that which is indicated by TL.

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If the actual transfer amount differs from the amount indicated by TL, the

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target creates the following status and sense data:

f Status: B©00001π (CHECK CONDITION)
f Sense key: X©0π (NOSENSE)

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f Sense data (VALID) : 1
f Sense data (ILI) : 1

f Sense data (INFORMATION) : TL indicated transfer amount subtracted

Note:

For the read sequence, see Section 4.7.3.

(2) DATA IN phase (target Æ initiator)

a. Image data: (DATA TYPE CODE = X©00π)

(Not compressed)

Horizontal scan direction

ULX

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(Difference in transfer amount)

by actual transfer amount

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ULY

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Vertical

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scan

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direction

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Pixel 1 Pixel 2

i + 1 i + 2

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2i + 1 2i + 2

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i (j-1) + 1 i (j-1) + 2

i - 1 i

2i - 1 2i

3i - 1 3i

ij - 1 Pixel ij

Raster line 1

Raster line 2

Raster line 3

Raster line j

i pixels

The following format is the data format that this scanner uses when
transferring the image data of a window comprising i ¥ j pixels.

j pixels

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