When using Google Cloud Print to print certain documents, the document shows up in the GCP console (
google.com/cloudprint/#jobs) as "Printed", however what actually gets printed is a single line:
"Unsupported PDF data for Direct Print: 1000"
I am attempting to print these documents using the "/submit" API for GCP, however I see the same errors when I upload the docs and manually print them from the aforementioned GCP console, at least using Firefox. Meanwhile, printing the same documents over a shared wifi (rather than through GCP) doesn't appear to generate this error.
I've investigated the issue online, and the information is pretty sparse. This unresolved Google Product Forum sees the issue brought up:
https://productforums.google.com/forum/#!topic/gmail/QBZK9w8Qyz0. The question-asker there mentions that his/her printer is a Brother printer, which mine is as well, and so it may be that my printer is the root of the problem. My only evidence to the contrary is that the same question-asker says that they called the Printer's support, and was told "it's a network/computer problem and not a Brother printer error".
I was wondering if anyone here had any thoughts on next steps I might take to rule out one option or another. Thanks!