13
UBI EasyCoder 301 Direct Protocol – Programmer's Guide Ed. 1
Chapter 3 Principles of Operation
11. File-Handling
Commands
12. Syntax
Descriptions
A number of commands are used to control the printer's memory,
for example:
• Read the names of files, fonts or images stored in the printer's
memory
• Download binary files
• Download .PCX files
• Remove files
• Remove downloaded images
• Copy files
Many commonly used commands have a shorthand version to mini-
mise the transfer of data. In the explanations of the various com-
mand that follow, both the full name and the shorthand version will
be shown, separated by a thin vertical line, e.g.:
PRPOS | PP
Upper- and lower-case characters can be used at will in commands.
Parameters for commands are shown like this:
<parameter>
numeric value
"<parameter>"
alphanumeric text (enclosed by double quo-
tation marks)
• Compulsory space characters are indicated by a double-headed
arrow (
↔
).
• Square brackets [ ] indicate optional parameters.
• Thin vertical bars (|) indicate alternatives.
• Always enter parentheses, commas, colons, semicolons, minus
signs, quotation marks and period characters exactly as shown.
• Negative values are indicated by leading minus signs (-).