Special Control Character Functions - Commodore MPS-803 User Manual

F. Special Control Character Functions
Special control characters can be used ta change the mode of printing [Table 1
contains a summary of the special control characters). Printer control characters
are inserted in the data stream transmitted to the printer via secondary address 0
or 7.
TABLE 1
Special Control Character Summary
CHRSCode
CHRSI14)
CHRSM5)
CHR$|8)
CHRSCI8)
CHRSM46)
CHRS(13)
CHRS(IO)
CHRS<17)
Printer function
Enhance ON
Enhance OF F
Bit Image Printing
Reverse ON
Reverse OFF
Carriage Return
Line Feed
Print in
Business Mode
Print in
Graphic Mode
Quote
Tab Setting
the Print Head
Repeat Graphic
Selected
Specify Dot Address
CHRSIH5)
CHRS(34>
CHRS[16); "nHnL"
CHR$(26J; CHRS|btt image data)
CHRS(27);CHRS(16);CHRS(nH)CHRS{nL)
'
i
1. Enhance ON/OFF CHRS(14)/CHfl$(16)
Your printer normally generates a character using dot matrix that is 7 dots high
and 6 dots wide. If you send an ASCII CHR$(14) character within a data output
PRINTS statements parameter, all characters fallowing the CHR$(14) are printed
double-width using dot matrix that is 7 dots high and 12 dots wide.
An ASCII CHRSI15) character cancels the character enhancement specified by
preceding CHR3{14) character or ASCII CHRS(15) is Standard Character Mode.
CHRS114) and CHRS{15) cancel later mentioned bit image graphic printing code
[CHRS(8|]. And these control codes give a 1/6 inch line feed.
The example below shows E nhance ON/OFF functions.
EXAMPLE It
109 REM CHR±<145 ENHRNCE ON.■'DOUBLE WIDTH CHP,
IIS REM CHR£c15j...FHHfiHOE OFF/STD WIDTH CHP
128 OPEN 4.4 =REM PRINT IN GRpPHIC MODE
140 FOR 1=1 TO 4
158 PRIWT#4.EN$;"EHHflMCE OH";
XE<3 PRINT#4, DE*; " ENHRNCE OFF"
176 NEXT T
130 :
190 FOR J—\ TO 8:PRIHT#4;NEXT J
30O CLOSED
RUN
IH M M F=t M it::
IH M l-l F=* B---T O
EHHRHC
EXAMPLE 2:
,[
IET
E=
!-
c
c
r
t M
;in
' n " ^
ENHflNCE
EHHflHCE
EHHRNCE
FHHRNHE
OFF
OFF
OFF
OFF
CHR*' ;■:-... ■ ' rj-!rr-[:;,r on/doublh uin H CHR
REM CHP^-C 1-5 >... FW'HRMCE OFF/STO WIDTH CHR
OPEN 4,4 rp£M PRTNT IN GRAPHIC M33£
EN*=CHR*' 14 ■■ ■ r!Ff-CHP±< 15)
for r=j to 4
PRINT#4,EH*;"EHHBNCE ON"
155 PRIHT#4,EN*j"EHHflMCE CONTINUE"
l&e PPI(-!T*H,nE*; "ENHRHCE OFF"
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