Check printing in Oracle 12.1.3 with 3rd party check printing software

We are configuring 3rd party software to print checks out of r12 Oracle and having problem.  When going through navigation path Payables manager => Payments => Entry => Payments => then click on View Requests => click on TOOLS, select reprint/republish, and select the printer, style and 1 copy, the check prints correctly, indicating the software is working.

We are using IBY_FD_PAYMENT_FORMAT_TEXT module: Format Payment Instructions with Text Output to generate the xml file.

If I navigate payments - entry - payments and generate a check, the process runs correctly, the log indicates the proper PPP, check document, format, etc are selected, but the check does not print properly. it looks like somehow std portrait driver was used, and th 3rd party software was not called.