Fujitsu C150-E049-02EN SCSI Bus Phases Sequences

SCSI Bus Phases Sequences

The order in which phases are used on the SCSI bus follows a prescribed sequence.

The reset condition can abort any phase and is always followed by the BUS FREE phase. Also any other phase can be followed by the BUS FREE phase but many such instances are error conditions.

The additional allowable sequences shall be as shown in Figure 3.5. The normal progression is from the BUS FREE phase to ARBITRATION, from ARBITRATION to SELECTION or RESELECTION, and from SELECTION or RESELECTION to one or more of the information tranfer phases (COMMAND, DATA, STATUS, or MESSAGE). The final information transfer phase is normally the MESSAGE IN phase where a DISCONNECT, or COMMAND COMPLETE message is transferred, followed by the BUS FREE phase.

Reset or protocol error

MESSAGE OUT

	SELECTION	COMMAND
BUS FREE	ARBITRATION	DATA IN or
BUS FREE	ARBITRATION	DATA OUT
		DATA OUT
	RESELECTION	STATUS
		MESSAGE IN

Figure 3.5 Phase Sequence

3-26	M3099GX/GH OEM Manual

Contents

Page Page Page Page Preface Chapter 1 Overview Chapter 2 Specifications Chapter 3 Interface Specifications Chapter 4 Basic Operation Chapter 6 Document Specification Chapter 7 Consumables and Accessories Chapter 8 Cleaning Contents Page Page BASIC OPERATION ERROR PROCESSING AND RECOVERY DOCUMENT SPECIFICATION CONSUMABLES AND ACCESSORIES CLEANING APPENDIX A ENDORSER APPENDIX B APPENDIX C SEPARATION PRESSURE ADJUSTMENT INDEX Figures Tables Page Page Chapter 1: Overview Chapter 2: Chapter 3: Interface Chapter 4: Chapter 5: OVERVIEW Table 1.2 Types of M3099GX Figure 1.1 500 sheets hopper type Page Duplex reading Fast reading Large-capacityhopper High-qualityimage New image processing function Configuration Configuration of the scanner Arrangement of units Figure 1.4 Arrangement of units Operation Overview Operation of the mechanism unit Operation of the control unit Main control unit Interface control Video amplifier and driver section Image processing section SPECIFICATIONS Electrical Specifications Environmental Specifications Table 2.2 Electrical specifications Specification Table 2.3 Environmental specifications Physical Specifications Figure 2.1 Dimensions of 500 sheets hopper type Page Table 2.4 Physical specifications Type Figure 2.3 Service areas Option Specifications Table 2.5 Option specifications Detail Remark INTERFACE Definitions Scope Bus phases Commands Statuses Messages Connection Physical specification Termination Connector pin assignments SCSI Bus (See ANSI SCSI-24.5) SCSI Bus Signals (See ANSI SCSI-24.6) Table 3.3 SCSI Bus Signals Signal Values Signal Source Table 3.4 Signal Source C/D, I/O MSG ACK DB(7,0) SCSI Bus Timing Table 3.5 SCSI Bus Timing Values Timing Description Timing Values Arbitration Delay Assertion period Bus Clear Delay Bus Free Delay Bus Set Delay Bus Settle Delay Cable Skew Delay Data Release Delay Deskew Delay Disconnection Delay Power-Onto Selection Time Reset to Selection Time Reset Hold Time Selection Abort Time Selection Time-outDelay Transfer Period ARBITRATION Phase SELECTION Phase RESELECTION Information Transfer Phases Asynchronous Information Transfer Synchronous Data Transfer COMMAND Phase Data Phase DATA IN Phase DATA OUT Phase MESSAGE IN Phase MESSAGE OUT Phase (See ANSI SCSI-26.1.9.2 for details) Reset Condition SCSI Bus Phases Sequences Reserved (See ANSI SCSI-27.1.1) Logical Unit Number Transfer Length Allocation Length Control field Table 3.7 Operation Code Types Command RESERVE UNIT Command Superseding Reservations TEST UNIT READY Command INQUIRY Command (See ANSI SCSI-27.2.5) EVPD (Enable Vital Product Data): Page Code: Standard INQUIRY Data (See ANSI SCSI-27.2.5.1) Table 3.12 Standard INQUIRY Data Format Page Vital Product Data Table 3.13 Standard VPD Page Format Page Table 3.15 Function Bit Description Table 3.16 Standard VPD Page Extended Format Page Code Page Vendor Unique Parameter: See Table Table 3.22 Vendor Unique Parameter Bytes Page Table 3.23 Image Control Function nnnnnnnnb 00000000b nnnnXXXXb XXXXnnnnb Page REQUEST SENSE Command (See ANSI SCSI-28.2.14) Page Page Table 3.29 Sense Key Descriptions Sense Key Page Qualifier SEND DIAGNOSTIC Command SET WINDOW Command Table 3.32 SET WINDOW Command Page Table 3.34 Window descriptor Bytes Page Page Page Page Page Page Vendor Unique Parameters Page Table 3.45 Image Emphasis Table 3.46 Automatic Separation Table 3.47 Mirroring Page Table 3.49 DTC Mode - Byte 1xxxxxxxb 0xxxxxxxb x00xxxxxb x01xxxxxb Table 3.51 White Level Follower value Table 3.52 Paper Size Page OBJECT POSITION SEND Command Page SEND Data Example ORDER DATA Gamma Function Endorser Data SCAN Command READ Command Page Data Type Format Pixel Size Data (DATA TYPE CODE : 80h) Detected Paper Information (DATA TYPE CODE 81h) Table 3.65 Paper Size 00xxxxxxb 01xxxxxxb 0x0xxxxxb 0x1xxxxxb MODE SELECT(6) Command MODE SENSE(6) Command Mode Parameter Page (a) Lamp Timer page Page ENDORSER Command (ENDORSER option is required) Page Page Page Page Status (See ANSI SCSI-27.3) Page Message(See ANSI SCSI-26.5) Table 3.83 Message Codes Support Message Name Page ABORT (Init → Targ) BUS DEVICE RESET (Init → Targ) COMMAND COMPLETE (Init ← Targ) DISCONNECT (Init ← Targ) IDENTIFY (Init → Targ) INITIATOR DETECTED ERROR (Init → Targ) MESSAGE PARITY ERROR (Init → Targ) MESSAGE REJECT (Init ↔ Targ) NO OPERATION (Init → Targ) RESTORE POINTERS (Init ← Targ) SAVE DATA POINTER (Init ← Targ) SYNCHRONOUS DATA TRANSFER REQUEST Page Implied Agreement Command Sequence System Initialization General Procedure for Initializing Devices Verify State Test Page Page Basic Scanning Sequence (Simplex Mode) : Duplex Scanning Endorser Control READ command sequences and phase progression Multiple READ (disconnect disabled) Multiple READ (disconnect enabled) Page Status Transition of Logical Unit Specifiable items for window parameter Page BASIC OPERATION Opening the Upper Transport Unit Closing the Upper Transport Unit Operator Panel LCD lines) Mode Page LCD display Power-Onto Ready Operation Ready Operation Ready in Manual Feed mode Warning Paper Counter IPC II pre-setmode Buttons [Manual] button [Start]/[Stop] button [Mode 1] button [Mode 2] button Message List Table 4.3 Messages Message Loading Lamp Replacement Never replace lamp without turning off the power Wait at least 3 minutes after turning off the power before touching the lamp Replacing the front-sidelamp Page Page Replacing the back-sidelamp •Be careful not to peel the tape on the heater Roller ASY Replacement Wait at least 3 minutes after turning off the power before replacement Page Pick Roller Replacement Belt Replacement Page Pad Replacement Page ERROR PROCESSING AND RECOVERY Device and Operator Actions for Temporary Errors Table 5.1 Device and operator actions for temporary errors Scanner actions (*2) Page Page Device and Operator Actions for Equipment Errors Page Page DOCUMENT SPECIFICATION Document Size Quality Ream weight Note: Precautions Never use an original document on this machine Do not feed important original document so as not damage it in rare case Limitations Areas that must not be perforated Figure 6.2 Areas that must not be perforated Print prohibit areas on the front and back surfaces Grounding Color Area Drop-outColor Print density measurement Drop-outcolor standards Job Separation Sheet Shape CONSUMABLES AND ACCESSORIES Accessories Table 7.2 Accessories Quantity 8 CLEANING Cleaning the front-sidelamp of the heater hard Page Cleaning the rollers Cleaning the rollers with dry cloth and alcohol (Cleaner F1) Cleaning the steel rollers with cleaner F2 Cleaning the transport paths Document width detection sensor Document detection sensor Reading timing sensor Ejection sensor Page A ENDORSER A2.1 How to set the endorser ON (or OFF) A2.2 How to set the initial number A2.3 How to set the print number reset condition A2.4 How to reset the print number manually A2.5 How to reset the print head life counter A2.6 How to test the printing by the operator panel operation A3. Print head A3.1 Replacing the print head handling A3.2 Print head position adjustment SETUP MODE B.1 Activating the setup mode B.3 Contents of the setup mode The setup mode can be classified into eighteen: Mode Setup type Contents B3.1 Setting double-feeddetection Details B3.2 Setting IPC-2 pre-setmode Page B3.3 Reset of abrasion counter B3.4 Setting buzzer B3.5 Setting pre-pick B3.6 Adjusting LCD contrast B3.7 Setting pick speed B3.8 Setting initial value of endorser B3.9 Setting reset method of endorser B3.10 Reset of endorser B3.11 Reset of ink counter B3.12 Setting SCSI-ID B3.13 Setting Product-ID B3.14 Setting picking start time B3.15 Setting picking time B3.16 Setting time-outlimit B3.17 Setting hopper time B3.18 Setting heater control Page SEPARATION PRESSURE ADJUSTMENT Page Glossary of Terms Endorser Equipment error Error diffusion Filtering Hexadecimal Image emphasis Interface Inversion (Reverse-imagereading) IPC Letter size Operator panel Outline extraction RS-232Cinterface Serial interface Smoothing Index Page Page Page Reader Comment Form