2. Request ID (ESC I)
When the scanner receives this command, it relays the scanner ID
information to the computer in the following order.
Scanner command level
Available resolution values
Maximum scannable area
(at the highest resolution, with 100% zoom)
If you are creating a program for use with different scanner models,
you can use this command to determine the features and settings
available on the connected scanner model.
The ID information is transferred as a data block from the scanner to
the computer. See Appendix B for details on the ID information for
each scanner model.
3. Request Status (ESC F)
When the scanner receives the ESC F command, it sends a data block
to the computer that includes the status information. See page 2-28 for
details on status information. The length of the information block
within the data block is four bytes. The contents of these four bytes
are as follows:
Header (STX)
1 byte
Status
1 byte
Byte counter
2 bytes
4. Extended Status Request (ESC f)
Upon receiving this command, the scanner sends a data block to the
computer that includes the status of the scanner and any options
installed.
The data block is composed of the normal information block
combined with 33 bytes of extended status data.
Command Usage
2-3
Содержание EMP-TW 1000
Страница 4: ...iv ...
Страница 11: ...Introduction Introduction 1 ...
Страница 14: ...4 Introduction ...
Страница 36: ...Halftone mode C None Dither mode A Dither mode B Dither mode C Dither mode D 1 22 Overview ...
Страница 39: ...Chapter 2 Command Usage 2 Command Usage 2 1 ...
Страница 72: ...Color page scanning Use when sending color page data 2 34 Command Usage ...
Страница 95: ...Chapter 3 Command Reference 3 Command Reference 3 1 ...
Страница 118: ... Upper bits beginning with the MSB are valid Lower bits not in use are fixed to 0 3 24 Command Reference ...
Страница 131: ...Parameter range Default value i 00H center Command Reference 3 37 ...
Страница 157: ...Command Reference 3 63 ...
Страница 163: ...Appendix A Interface Specifications A Interface Specifications A 1 ...
Страница 182: ...A 20 Interface Specifications ...
Страница 183: ...Appendix B Scanner Model Technical Data B Scanner Model Technical Data B 1 ...
Страница 268: ...B 86 Scanner Model Technical Data ...