... only on prints, every time. Copies don't jam.
First thing I thought of was a paper size or media type issue, but with the tray pulled the machine requests letter plain, and it's in the tray, and size programmed correctly. The prints always jam C220 at the upper vertical path roller. It won't pass a single page printed.
Second I thought that maybe it was a driver issue. I shared the driver on the customers server. Same result. I downloaded a fresh driver, and ported it directly to the IP. Still same result. A data capture sent via LPR Jar does not jam. Telnet print command does not jam.
My interim conclusion is that the SYS PWB is misreading the print data. I'll be returning tomorrow with the system and logic PWBs. It runs counter to the typical troubleshooting methods. Usually true jamming affects copies and prints equally. Not in this case. Has anybody seen these symptoms?
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