Service manual

Chapter 1 Product Description

Table of Contents

1.1 FEATURES 1-1

1.2 SPECIFICATIONS 1-3

1.2.1 BasicSpecifications..........................................1-3

1.2.2 ElectricalSpecifications.......................................1-3

1.2.3 ResistancetoElectricNoise....................................1-4

1.2.4 EnvironmentalConditions .....................................1-4

1.2.5 Reliability ..................................................1-4

1.2.6 OperatingConditions.........................................1-4

1.2.7 Documents.................................................1-4

1.2.8 SizeofOriginalforScanning...................................1-4

1.2.9 PhysicalDimensionsandWeight................................1-4

1.3 INTERFACE SPECIFICATIONS 1-5

1.3.1 BidirectionalParallelInterface..................................1-5

1.3.2 SCSI......................................................1-7

1.3.2.1 BasicSpecifications....................................1-7

1.3.2.2 SCSICommands......................................1-8

1.3.2.3 SCSIStatus..........................................1-8

1.3.2.4 SCSIMessages.......................................1-9

1.3.2.5 SCSIPinAssignments..................................1-9

1.4 BUTTONS AND INDICATORS 1-10

1.5 SELF TEST 1-10

1.6 ERRORS 1-10

1.7 DATA TRANSMISSION PROTOCOL 1-12

1.7.1 HandshakingControlCodes ..................................1-12

1.7.2 DataBlockHandshakingProcedure ............................1-13

1.7.3 Data Block Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

1.7.3.1 LineDataFormat.....................................1-16

1.7.3.2 BlockDataFormat....................................1-17

1.7.4 FormatofStatusByte........................................1-17

1.8 SCANNER FUNCTIONS 1-19

1.8.1 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

1.8.2 OutputResolution...........................................1-20

1.8.3 Zoom ....................................................1-20

1.8.4 ReadingArea..............................................1-21

1.8.5 ColorMode................................................1-21

1.8.6 DigitalHalftoning ...........................................1-22

1.8.7 Color Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

1.8.8 Brightness.................................................1-23

1.8.9 Sharpness ................................................1-23

1.8.10 Gamma Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

1.8.11 ScanningMode............................................1-24