twain/twain-cs

twain print not happening with messages CAP_PRINTERSTRING,CAP_PRINTERSUFFIX

Closed this issue · 2 comments

vijaynet10 commented

Hai ,

We bought epson plq 22cs passbook printer , we trying to integrate with our dotnet application using twain-cs.

requirement

  1. Reading Bar-code value from passbook
  2. Without ejecting the passbook have to print some lines
  3. Eject the passbook

From the above requirement, we have done the steps 1 and 3.But print is not happening.We tried with CAP_PRINTERSTRING,CAP_PRINTERSUFFIX messages .We need your support to solve this issue.

mlmcl62 commented

The application needs to confirm through CAP_SUPPORTEDCAPS that both CAP_PRINTERSTRING and CAP_PRINTERSUFFIX are supported. If they are, then following the Capability Ordering section in the TWAIN Specification, the application must first set CAP_PRINTERENABLED to TRUE. Then any other printing capability items may be negotiated. All of this happens in state 4, with printing occurring during scanning. If the scanner being used differs from this behavior it will be necessary to contact the vendor for additional help...

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vijaynet10 commented

do you have any samples in dotnet @mlmcl62