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Print Forwarding
Print forwarding, which enables printing to be performed from a different printer if it cannot be performed on
another one is implemented in the TM-DT software. You can configure a secure system that enables printing to
be performed on a separate printer even if one printer cannot be used. All you need to do is specify the for-
warded printer in the case where printing cannot be performed to EPSON TMNet WebConfig. There is no need
to resend print data.
Complicated processing is required in order to implement a function by a general application for printing from
a separate printer when a printer cannot be printed. By using print forwarding, since the TM-DT software auto-
matically conducts forward printing, the printing process on the customer's application can be simplified.
Processing Flow using the Spooler Function
< Device ( application )>
1
The device application sends the print data to the TM-DT software.
2
The TM-DT software tries to conduct printing process on printer A but cannot
because the printer is offline. The TM-DT software retries the number of times that is
set in the spooler function.
3
If printing cannot be performed on Printer A even after the retry, the TM-DT software
performs printing on Printer B.
• If a printer that is set as a forwarding source or forwarding destination cannot print because it
is offline or because of an error, printing is not performed even if forward printing is set. The
printing results are logged and can be confirmed from the application. For the confirmation
method, see
" If the power for this product is turned off, the forwarding print data is erased.
• If the print data exceeds the remaining capacity of the spooler and cannot be spooled, the
print data is erased. Concerning the spooler capacity, see
page
"Checking the print results" on page
104.
Chapter 5 TM-DT Software System Development
<Printer A>
<Printer B>
62.
"TM-DT Software Specification" on
5
61
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