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chapter 5
DOC
Withthisprinteryoucancreatenewcharactemandsymbols,downloadtheir
dotdata,andhavethemprintedinplaceof selectedcharactersintheregular
characterset.Charactemthatcanbegeneratedinthiswayrangefromsimple
but useful symbols like the check mark through complex Chinese or
Japanesecharactem.
Regular charactem are permanently stored in the printer’s ROM, but
charactm you designaredownloadedand storedin RAM for use.
DESIGNING YOUR OWN DRAFT CHARACTERS
Designingand printing your own charactershas two requirements:first,
designingtheshapeofthecharacter,calculatingthe datanecessaryto make
the shape, and sendingthat datato the printer,and secondly,sendingthe
commandto printthedownloadedcharactersinsteadof the regularcharac-
ters. There are a numberof designconstraintsfor downloaddraft quality
characters:
● The matrixor grid on whichyou designthe charactersis six boxeswide
by nine boxeshigh.
s Horizontally,dotsmaybecenteredinabox, ormaystraddlealine,making
the actualcharactergrid 11dotswideby 9 dotshigh.Vertically,dotscan
onlybe centeredin a box.See Figure5-1.
F S O c b i b o s t v l o t g
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