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5. Request condition (ESC S)
This command causes the scanner to send a data block to the
computer that contains the current values of the settings for all the
scanner’s features.
The features available are different for each scanner model. Following
is a sample of a B4-level data block sent when the scanner receives
this command.
The ESC code and command code are ASCII character data. The 1 or
2 bytes of binary data that follow are that command’s setting
(parameter) value. Two-byte data is listed with the lower byte first and
the upper byte last.
2-4 Command Usage
- Scanner 1
- Contents 5
- Chapter 2 Command Usage 6
- Introduction 11
- Manual Construction 12
- Using This Manual 13
- 4 Introduction 14
- Overview 15
- What Is a Scanner 16
- Main scan 17
- Sub scan 17
- Reading color 18
- Reading monochrome 18
- EPSON Scanner Features 19
- 1-6 Overview 20
- Control Code Construction 21
- Computers and Handshaking 22
- Image Data 23
- 1-10 Overview 24
- Line data transfer 25
- Block data transfer 26
- Functions 27
- Gamma correction 28
- Halftoning 29
- Data form definition 30
- Resolution 31
- 1-18 Overview 32
- Scanning area 33
- Color setting 34
- 1-20 Overview 34
- Image processing 35
- 1-22 Overview 36
- Using Scanner Features 37
- 1-24 Overview 38
- Command Usage 39
- 2. Request ID (ESC I) 41
- 3. Request Status (ESC F) 41
- 5. Request condition (ESC S) 42
- Data Form Commands 43
- ESC D and other commands 44
- 2-6 Command Usage 44
- 3. Set Resolution (ESC R) 45
- 4. Set zoom (ESC H) 45
- 5. Set scanning area (ESC A) 46
- 6. Set data order (ESC K) 46
- Image Setting Commands 47
- CRT Display A 48
- 2-10 Command Usage 48
- CRT Display B 49
- Printer Output A 49
- Printer Output B 49
- Printer Output C 49
- 4. Set Sharpness (ESC Q) 50
- 2-12 Command Usage 50
- Built-in dither patterns 52
- 2-14 Command Usage 52
- ESC B and other commands 53
- 2-16 Command Usage 54
- ESC M and other commands 55
- ESC d and other commands 57
- 2. Abort scanning (CAN) 59
- 3. Normal response (ACK) 59
- 4. Negative response (NAK) 59
- Command Order 60
- Control flow 61
- Recommended command order 62
- Command Usage 2-25 63
- Data Block Transfer Order 64
- Information block 65
- Status byte 66
- 2-28 Command Usage 66
- Byte counter 67
- Line counter 67
- Image data 68
- ID information data 68
- 2-30 Command Usage 68
- Command Usage 2-31 69
- Transfer order 70
- 2-34 Command Usage 72
- Scanning Area 73
- 2-36 Command Usage 74
- Command Usage 2-37 75
- Setting the scanning area 76
- Image trimming (1) 78
- Image trimming (2) 80
- Error Processing 82
- System error 83
- Option error 84
- Function Level and Commands 85
- 2-48 Command Usage 86
- Function level and commands 87
- 2-50 Command Usage 88
- Problem: 89
- Command Usage 2-53 91
- Command Usage 2-55 93
- Command Reference 95
- Execution commands 96
- Data form definition commands 96
- 3-2 Command Reference 96
- Image definition commands 97
- Image processing commands 97
- Supplemental commands 97
- Control codes 97
- 3-4 Command Reference 98
- Command Reference 3-5 99
- Execution Commands 100
- Command Reference 3-7 101
- 3-8 Command Reference 102
- Command Reference 3-9 103
- 3-10 Command Reference 104
- Command Reference 3-11 105
- 3-12 Command Reference 106
- Command Reference 3-13 107
- 3-14 Command Reference 108
- Command Reference 3-15 109
- 3-16 Command Reference 110
- Command Reference 3-17 111
- 3-18 Command Reference 112
- Command Reference 3-19 113
- 3-20 Command Reference 114
- Command Reference 3-21 115
- 3-22 Command Reference 116
- Command Reference 3-23 117
- 3-24 Command Reference 118
- Command Reference 3-25 119
- 3-26 Command Reference 120
- ≤ i1 ≤ C8 121
- ≤ i2 ≤ C8 121
- 3-28 Command Reference 122
- Command Reference 3-29 123
- 3-30 Command Reference 124
- Command Reference 3-31 125
- 3-32 Command Reference 126
- Reading area 127
- 3-34 Command Reference 128
- Explanation: 129
- Image Definition Commands 130
- Parameter range: 131
- Default value: i = 00 131
- (center) 131
- 3-38 Command Reference 132
- Command Reference 3-39 133
- 3-40 Command Reference 134
- Command Reference 3-41 135
- 3-42 Command Reference 136
- Gamma table 137
- 3-44 Command Reference 138
- Image Processing Commands 139
- 3-46 Command Reference 140
- Command Reference 3-47 141
- 3-48 Command Reference 142
- Command Reference 3-49 143
- 3-50 Command Reference 144
- Command Reference 3-51 145
- 3-52 Command Reference 146
- The parameter 01 147
- 3-54 Command Reference 148
- Command Reference 3-55 149
- 3-56 Command Reference 150
- Auxiliary Commands 151
- 3-58 Command Reference 152
- Command Reference 3-59 153
- 3-60 Command Reference 154
- Command Reference 3-61 155
- 3-62 Command Reference 156
- Command Reference 3-63 157
- 3-64 Command Reference 158
- Control Codes 159
- 3-66 Command Reference 160
- Command Reference 3-67 161
- 3-68 Command Reference 162
- Interface Specifications 163
- Signal pin assignments 165
- Cable wiring 165
- Timing charts 169
- Basic Specification 170
- ID Switch Setting 171
- Command Chart 171
- Status List 172
- Message List 173
- Connector pin arrangement 173
- SCSI Operation Procedure 175
- SCSI Commands 177
- Unit Attention Condition 178
- Sense Data 179
- Information byte: 180
- Sense keys: 180
- Initialization 181
- Scanner Model Technical Data 183
- GT-1000 Technical Data 184
- Software Defaults 185
- DIP Switch Setting 186
- The Identity Data-Block 188
- The Condition Data-Block 189
- GT-4000 Technical Data 191
- DIP switch 2 settings 195
- Physical Characteristics 201
- Error Indications 201
- Baud rate settings 217
- DIP switch 1 settings 219
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