Xerox 5021 copier, 1996 vintage with "U4" error code. Comes on, one fan runs but nothing lighting up on the control panel except that error code and "see user guide". (naturally for this particular code the user guide says "call for service" ) Press "stop" and something makes a noise..otherwise pretty much dead.
One of these deals where it's a fairly low copy total machine but it sat around not being used much...maybe a few copies a month..and one day my parents turned it on and get this error code...working perfect before that.
I just now Googled Xerox and U4 and came up with the following-
U4-1: Fuser took too long to warm up
U4-3: Fuser temperature too high
U4-6: Web count expired.
U4-7: Open fuser thermistor
Mine has just 'U4' but wonder what 'web count' is ?
One of these deals where it's a fairly low copy total machine but it sat around not being used much...maybe a few copies a month..and one day my parents turned it on and get this error code...working perfect before that.
I just now Googled Xerox and U4 and came up with the following-
U4-1: Fuser took too long to warm up
U4-3: Fuser temperature too high
U4-6: Web count expired.
U4-7: Open fuser thermistor
Mine has just 'U4' but wonder what 'web count' is ?