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
Summary of Contents for EMP-TW 1000
Page 4: ...iv ...
Page 11: ...Introduction Introduction 1 ...
Page 14: ...4 Introduction ...
Page 36: ...Halftone mode C None Dither mode A Dither mode B Dither mode C Dither mode D 1 22 Overview ...
Page 39: ...Chapter 2 Command Usage 2 Command Usage 2 1 ...
Page 72: ...Color page scanning Use when sending color page data 2 34 Command Usage ...
Page 95: ...Chapter 3 Command Reference 3 Command Reference 3 1 ...
Page 131: ...Parameter range Default value i 00H center Command Reference 3 37 ...
Page 157: ...Command Reference 3 63 ...
Page 163: ...Appendix A Interface Specifications A Interface Specifications A 1 ...
Page 182: ...A 20 Interface Specifications ...
Page 183: ...Appendix B Scanner Model Technical Data B Scanner Model Technical Data B 1 ...
Page 268: ...B 86 Scanner Model Technical Data ...