This printer was working fine with our print volume of 1000 pages per day, then it started taking 5 minutes between each print, just saying "waiting" on the display. Upon cancelling the print job the printer spews out pages of postscript rubbish. Sometimes it works again after turning it off, but not today.
This has occurred both through a network connection and usb, and on windows 7 and windows 10. The computer also prints to another printer of the same model and works just fine.
I've tried erasing all settings, I've tried the latest firmware. Any other suggestions?