Control Commands
An Introduction
This section explains the following:
•
Communication
basics
•
Sending control codes and control commands
•
Identifying data bytes
•
Typographic
conventions
COMMUNICATION BASICS
Communication between the computer and printer is accomplished by
exchanging codes that have a predefined meaning. The building blocks
of these codes are bits and bytes.
Bits are the fundamental element of computer communication and may
have one of two values: zero and one. Computers and printers recognize
only these two states: zero and one.
A byte, or data byte, is a group of 8 bits that have significance as a unit.
There are 256 possible patterns of zeros and ones in an 8-bit data byte,
so there are 256 unique data bytes. Individual data bytes are identified by
a number related to the pattern of zeros and ones.
There are different conventions for assigning meaning to individual data
bytes. In the 4100 printer, two different conventions are used:
Summary of Contents for PowerLite 4100
Page 1: ...4100 PRINTER OPERATOR S GUIDE Part No 066 00428 02 February 12 1998 Rev F ...
Page 2: ...ii Contents ...
Page 22: ...xxii Contents ...
Page 42: ...20 Basics ...
Page 43: ...Operations COMMON OPERATIONS LOADING PAPER JB0 AF1 Loading Paper ...
Page 60: ...38 Operations JB0 AN Printout of IBM 1 U S Character Set Factory Default for IBM Emulation ...
Page 126: ...106 Maintenance ...
Page 191: ...Operator s Guide 171 Use the matrixes below to design your characters AB0 AA1 ...
Page 196: ...176 Universal Control Commands ...
Page 240: ...220 Epson FX 100 Control Commands ...
Page 276: ...256 IBM Proprinter Control Commands ...
Page 365: ...Operator s Guide B 19 INTERFACE CIRCUITS Version 1 JB0 BP1 ...
Page 366: ...B 20 Appendix B Serial Interface Version 2 JD0 DS ...
Page 374: ...C 8 Appendix C Parallel Interface INTERFACE CIRCUITS JB0 BQ2 ...
Page 383: ...Operator s Guide D 9 Main Character Library Upright Draft Characters JB0 BG1 ...
Page 384: ...D 10 Appendix D Character Sets Main Character Library Upright NLQ Characters JB0 BH1 ...
Page 423: ...Operator s Guide D 49 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F ...
Page 426: ...D 52 Appendix D Character Sets ...
Page 450: ......