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159
DOWNLOAD CHARACTER COMMANDS
PURPOSE Defines download characters into
RAM.
.CODE
(ESC) “&”
O nl n2 mO ml ... mll
[m12 ... m46]
(decimal ASCII)
27 38
0 nl n2 mO ml ...
mll
[m12 ... m46]
(hex ASCII) IB 26 00 nl n2 mOml ... mll
[m12 ... m46]
REMARKS
SEE
This command is used to define one or
more user-defined characters and to
store them into RAM for later use. RAM
is cleared when the power is turned off.
The values of nl and n2 specify the
range of positions in RAM that the
characters are to occupy. Valid character
positions are any number between Oand
255 except the area of block graphics in
the IBM mode. Following nZ the printer
expects character data bytes for each
character to be defined. The first byte,
mO, is the attribute byte, for it specifies
whether the character is a descender (if
the first bit is O), and the proportional
width of the draft character (starting and
ending dot columns are defined by the
low o~der seven bits).
ml through mll
determine which dots form the draft
character. In the case of NLQ download
characters, valid character positions are
any number between 32 and 127, and ml
through m46 determine which dots form
the character.
NOTE: This commandis ignoredwhen
theDIP switch2-1is seton.
Chapter 7