Have a brand new imageCLASS MF644Cdw. Installation/initial setup appeared fine. Printer is on ethernet; PCs access network wirelessly.
Print test from Win 10 PCs fails indicating out of paper. Ran the test with a second PC; same results. Uninstalled/reinstalled printer and drivers; tested again; no change.
The printer's COPY function works, and I can print from USB, so don't suspect hardware problem with paper tray.
Firmware indicates latest. Driver was downloaded automatically by PC, so assume most current.
Looked at paper setups on printer and PC. Tried a print forcing Tray 1, but same error.
Device manager seems to indicate 2 items: the printer and the printer queue. There was an error message during driver install that might mean something.
"Device SWD..... was not migrated due to partial or ambiguous match". Still showed successful install.