Have you tried the function button, are talking about admin management password default is 00000000 or 0000 if the previous owner
changed it you will need a service technician to clear it. Mite also try 12345678, check canon or panasonic web site for download of operation manuals. usually free pdf
I have a brothers mfc 5840cn it will not print error message is unable to init, I have done the...
(More)
I have a brothers mfc 5840cn it will not print error message is unable to init, I have done the trouble shooting and routine maint. plus I changed the ink cartridge the serial # is U61092K4F807704