Star Micronics Dot Impact Printer Printer User Manual


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5-2
STARCommandSpecications
Rev. 0.70
5-1-3 Automatic Status
Autostatusisagroupofstatesthatareautomaticallyreturnedfromtheprintertothehostwhentheprinter’sstatushas
changed.Automaticstatusiscomposedof“Header1,”“Header2”and“pluralityofbytesoftheprinterstatusandiscon-
tinuouslyreturnedtothehost.Thehostalwaysusesanidentifyingmethodtoidentifythedataforeverybytereceived.
(ItispossiblethatXon/XoffcodesareexceptionallymixedintheautostatusintheXon/Xoffmode(whenusingaserial
I/F),soitisnecessarytoconsiderthatonthereceivingside.)Thevalid/invalidconditionsoftheautostatusabidebythe
DIPSW or the memory switch settings for the initial values.
ItispossibletochangetheconditionsusingtheESCRSancommandafterturningONthepower.
Also,itispossibletogettheautostatususingtheESCACKSOHcommand,regardlessofthevalid/invalidconditions.
1. Header 1
Header1isthe1bytelengthinformationtransmittedattheheadoftheautomaticstatus.
ThetablebelowshowsthecompositionoftheHeader1.Header1representstheentirestatustransmissionbytecount,
includingHeader1,usingbit1tobit3andbit5.Thehostgetsthetransmissionbyteinformationandalwaysreceivesthe
statusdataforthatamounttransmissionbytes.Forreference,thetablebelowshowstherelationshipofactualtransmis-
sionbytesandtheHeader1.Becausethebit0thatindicatesthatthisistheHeader1isnormally1(thesecondbyteand
beyondis0),todetecttheHeader1,itisacceptabletoverifythatbit0is1andbit4=0forthisdata.Notethatbit6is
for future expansion and is ignored in host-side processes.
<Header1(FirstByte)>
Bit Contents
Status By model
“0” “1”
BD100 SP2000 BD500 SP500 SP700
7 Fixedat“0” - - - - - -
6 Reserved (Fixed at 0) - - - - - -
5
Numberofprinterstatusbytes ○ ○ ○ ○ ○
4
Fixedat“0” - - - - - -
3
Numberofprinterstatusbytes ○ ○ ○ ○ ○
2
Numberofprinterstatusbytes ○ ○ ○ ○ ○
1
Numberofprinterstatusbytes ○ ○ ○ ○ ○
0
Fixedat“1” - - - - - -
Actualtransmissionbytecountandheader1table
Transmission Byte Count n
(7 ≤ n ≤ 15)
Header 1
7 00001111B (0F Hex)
8 00100001B (21 Hex)
9 00100011B (23 Hex)
10 00100101B (25 Hex)
11 00100111B (27 Hex)
12 00101001B (29 Hex)
13 00101011B (2B Hex)
14 00101101B (2D Hex)
15 00101111B (2F Hex)
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