Status byte
This byte indicates the color of the image data or the state of the
scanner. Each bit in the Status byte has a different meaning, as shown
in the following diagram. Currently, bits 0, 1, and 6 are reserved (not
used).
Error flag (bit 7)
This flag is set to ‘‘1’’ when an error other than a command error
occurs. In this case, no data follows, so the byte counter is set to 0
(00
H
, 00
H
).
If a system error occurs, the scanner accepts only the ESC F and ESC
f commands. These two commands are used to determine if a system
error has occurred.
Area end flag (bit 5)
This flag is set to ‘‘1’’ when the data block is the final block of
scanned data in the scanning area. Do not send an ACK code to the
scanner after receiving the final data block (when this flag is set to 1).
Option flag (bit 4)
This flag is set to ‘‘1’’ when an option is installed.
2-28
Command Usage
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 ...