Scan command, Scan Command phase initiator → target | Fujitsu 600C

This scanner calculates the numbers of X-direction pixels and Y-direction pixels of the image data to be transferred to the initiator. The scanner performs this calculation by referencing the resolution and area up with the SET WINDOW command. This data need not be issued if the number of pixels are known 1 the initiator.

The transfer format for this data is shown in the following illustration.

Byte 0

⏐

3

4

⏐

7

8

⏐

F

(MSB)

Number of X-direction pixels

(LSB)

(MSB)

Number of Y-direction pixels

(LSB)

(Reserved)

4.4.10Scan command

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

Step	Bus phase	Initiator operation	←→	Target operation

1	BUS FREE	Verifies bus-free
2	ARBITRATION	Obtains bus-usage right
3	SELECTION	Selects target	→
				Drives BSY signal
4	MESSAGE OUT	Selects logical unit	→
5	COMMAND	Specifies SCAN (CDB)	→
6	DATA OUT		→	Transfer data
7	STATUS		←	Reports GOOD status
8	MESSAGE IN		←	Reports message (Command Complete)
				Releases BSY signal
9	BUS FREE

4.4.10.1SCAN Command phase (initiator → target)

The Scan Command requests the target begin a scan operation. It is required for scanning color image, but not required for scan B/W image.

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Image 77

Fujitsu 600C manual Scan command, Scan Command phase initiator → target

Contents

Version Page Table of Contents Diagnostics Group 3 error flowchart no paper in ADF paper tray Page General General System Block Diagram Outer View Device Configuration Components Functional Specifications Remarks Functional Specifications Environmental Specifications Remarks Environmental Specifications Removing the Shipping Bracket Operation Remove the shipping retainer Fasten the shipping retainer Indication Panel Power On/Off Names and functions of the indicators Setting the Scsi ID and Connecting the Interface CableScsi ID setting Name Color Function Scsi Cable Connection Position Paper Size Paper SpecificationsPaper conditions 2.1 ADF Items to avoid FIatbed ADF readable area Readable area Flatbed Document Setting MethodWhen the document size is of letter/A4 size or smaller 2 ADF When the document is a thick bookSetting the ADF paper chute Placing the document on the ADF paper chute Placing the documents on the ADF paper chute Separating the sheets for easy feeding Angling the document sheets Cleaning the document cover and the document glass Cleaning Cleaning inside the ADF Page Interface ∙ Busy ∙ Check Condition ∙ Good ∙ Reservation Conflict Connection Physical Specifications Specifications Physical Specification1SCSI physical specifications Termination Pin assignments Signal Name Pin Number System configuration System configurationScsi Bus Addresses of Scsi devices 2Bus signals Bus signals 3Bus phases vs. signal drive sources 1/2 Bus signal drive conditions Or connection Nonor connection Bus PhasesMethod of driving the interface signal 5Signal delay times definition Time Definition Time Definition BUS Free phaseSignal delay times definition Arbitration phase BSY Scsi SEL Selection phase DB7 to 9,P Transfer Direction Information Transfer phasesInformation Transfer phase type Phase Asynchronous transfer from target to initiator Asynchronous information transfer Asynchronous transler from initiator to target Control byte is not supported CommandsRelative addressing is not supported Commands Reserve Unit commandOperation Command Code hex Description Bit and field described as Reserved are Tpid third party device ID Byte Reserve Unit command Command phase initiator Õ targetTP third party Byte TP third party Byte Release Unit commandRelease Unit command Command phase initiator → target Inquiry command Command phase initiator → target Inquiry command10 Inquiry command Step Bus phase Initiator operation Target operation CAllocation length Byte Evpd enable vital product data ByteCode Byte Aenc Inquiry data Data in phase target → initiator ADF mode Byte 24, bit SftRst Soft Reset ByteColor mode Byte 24, bit 6 to ISO version, Ecma version, Ansi approved version Byte 11 Request Sense command Request Sense commandRequest Sense command Command phase initiator → target Error code Byte Sense data Data EN phase target → initiatorAllocation length Byte Valid Byte FM file mark Byte ILI incorrect length indicator ByteEOM end of medium Byte Sense key Byte Command-specific information bytes Bytes 8 to B Send Diagnostic commandSense Additional Description Sense code Slftst selftest Byte Send Diagnostic command Command phase initiator → targetPF page format Byte Results of self-test Test Unit Ready commandContents of self-test Acknowledgment Test Unit Ready command Command phase initiator → target SET Window command Command phase initiator → target SET Window command Header Window date Data OUT phase initiator → targetTransfer Length Bytes 6 to Window descriptor block Window identifier Byte Y resolution XR, YR Bytes 2 to 3 and 4 toAuto Byte Upper left X,YULX, ULY Bytes 6 to 9, a to D Remarks Brightness Byte RIF reverse image format Byte 1D, bit Bit per pixel Byte 1ABit ordering Bytes 1E to 1F Halftone pattern Bytes lB to 1C lB reserved 7.4 B&W Scanning Vender unique parameters Update of ScanPartner 600C OEM manualCompression type, argument Bytes 20 to 18 Vender unique parameters byte 28 and laterPage 19 Vendor unique parameters byte 28 and later Color Scanning Vender unique parametersADF Byte 2A, Bit Source Byte 2A, Bit Shadow value Byte 2C Highlight value Byte 2BLine width Byte 2D to 2E Line count Byte 2F to Object Position command Bit Object Position command Command phase initator → targetPosition type Byte Load object Unload objectCount Bytes 2 to Normal ADF sequence Read commandStep Bus phase Initiator operation Target operation Data type code Byte Read command Command phase initiator → targetData type qualifier Bytes 4 to Transfer length TL Bytes 6 to Image data Data Type Code = Data in phase target → initiatorFor binary data Pixel size data Data Type Code = Scan Command phase initiator → target Scan command Code Status of unit Status Status phase target initiator ATN detection Phase ATN detection timingMessages Message Command Complete X00 Message in phase target → initiatorMessage types ATN detection phase Action Abort X06 Message OUT phase initiator → targetMessage Reject X07 Message IN/OUT phase initiator → target BUS Device Reset X0C Message OUT phase initiator → target No Operation X08 Message OUT phase initiator → targetPhase when ATN is detected Action Message rejected Action Idendify X80 to XFF Message OUT phase initiator → target Initial sequence Command Sequence Read sequence for B&W mode Read command sequenceRead sequence Single Read Multiple Read Status Transition of Logical Unit Sense key Error Table Items for Specifying Window Page Online diagnostics Online diagnosticsReady LED Paper Jam LED Error indication Offline diagnostics results Offline diagnostics Group 2 error flowchart Flatbed/ADF motor Diagnostic flowchartsGroup 1 error flowchart Lamp assembly Group 3 error flowchart paper in ADF paper tray Group 3 error flowchart no paper in ADF paper tray