Epson TM-T70-i ePOS-Print API Users Manual For TM-i firmware 4.1 - Page 58
ePOS-Print, Printer, Applic, Spooler
View all Epson TM-T70-i manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 58 highlights
Even if the output printer cannot complete the printing task, ePOS-Print Service I/F does not return an error to the application. Enabling forward printing will allow for the printing task to be completed on a substitute printer, with the application acquiring the printing results afterward. Refer to the sequence diagram below. Application ePOS-Print Spooler Printer Forwarding printer 1 : send(printjobid) 1.3 : callback(" success" ) 1.1 : send() 1.2 : Execution result 2 : Cmd() 2.1 : Print() Printing results (Failure) 3 : Cmd() 4 : getPrintJobStatus(printjobid) 4.3 : callback(" success" ) 4.1 : getPrintJobStatus() 4.2 : Printing result Printing results (Success) 3.1 : Print() 58
58
Even if the output printer cannot complete the printing task, ePOS-Print Service I/F does not return an error
to the application. Enabling forward printing will allow for the printing task to be completed on a substitute
printer, with the application acquiring the printing results afterward. Refer to the sequence diagram below.
ePOS-Print
Printer
Forw
a
rding printer
Applic
a
tion
Spooler
1.2 : Execution re
s
ult
1.1 :
s
end()
1.
3
: c
a
ll
ba
ck(”
s
ucce
ss
”)
2.1 : Print()
2 : Cmd()
Printing re
s
ult
s
(F
a
ilure)
3
.1 : Print()
3
: Cmd()
Printing re
s
ult
s
(Succe
ss
)
1 :
s
end(printjo
b
id)
4 : getPrintJo
b
St
a
tu
s
(printjo
b
id)
4.2 : Printing re
s
ult
4.1 : getPrintJo
b
St
a
tu
s
()
4.
3
: c
a
ll
ba
ck(”
s
ucce
ss
”)