The application that stopped printing

Today at the office we ran into another application that mysteriously stopped printing. Our finance person occasionally uses an app that does a secure login to another system. Like RPM Remote Print Manager® ("RPM") this application's manual states that it sends data

"to the printer raw - without translating it, attempting to format it, or doing anything else to it."

It was this application which stopped working on her laptop, where it had been working for years.

One of our support techs paused her printer at the Windows spooler. He watched the print data accumulate in the printer folder, but as soon as he unpaused the printer, the data vanished, and nothing happened. We were sure from that sequence that the issue was the class driver for the printer.

When we have attempted to use a class driver with the Raw Print function in RPM, we got exactly the results described above. We assumed the driver was doing something to the data which rendered it incompatible with the actual printer. Now it seems that the class driver prevents raw data from even reaching the printer.

What is the cure?

Create a printer definition using "Generic / Text" as the driver. That is our recommendation, and it has worked so far for everyone who has tried it. That approach also worked with the situation I described at the top.