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DEFININGYOUROWNCHARACTERSWITH IBM
MODE
Downloadingfonts in IBM mode requires downloadingcharacter Dot
PatterndataandcharacterIndexTabledata.Dotpatterndatacontrolswhich
pinsfimwhenprintingacharacter.IndexTabledataisplacedin a “lookup
table” that providesinformationon where Dot Pattern data is stored in
memoryand definescertainattributesof thecharacter.
Assigningthe downloadcharacterset
You can defineoneof moredownloadcharactersetsfor later use in IBM
mode.
Befo~ youstartto designyourcharacters,youmustdefinewhatcharacter
set(s)youwantto download.
Thecharacterwidthon whichyoudesignthecharactemdependsuponthe
characterset as shownbelow:
Characterset
Characterwidth CharacterID
Draftcharactem 9 0
LQ picacharactem 35
1
LQ elitecharactem
29 2
LQ proportional
17-41
3
Afteryouhavedecidedyourdownloadcharacterset,youmusttelltheprinter
wherethe downloadcharacterdatato be stored,andhow manydownload
charactersetsyouwilldefine.
Thefirstdownloadfontareastartsfrom<8001bh,andyoumustenterOfor
theFormatbyte.
ThisFormatbyteindicatestheprinterthattheRAMis storedthedownload
characterset
Followingtheformatbyte,youmustentertheCharacterIDdata.Ifyouwant
to definemomcharacterset,add 128to theCharacterID data.
ThesecondareastartsfromK891l>h,thethirdamastartsfmm<9212>h,and
thelastareastartsfrom<9B13>h.ButyouneednotenterFormatbytefor
thesearea.
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