H4-02 on MX-3060/MX-6070/MX-5070

[mojorolla]

6.5 is not available in North America yet.....

[michaelc]

Before you replace the fuser or put it back on the machine after a rebuild (or even take it out of the machine) you should (dont' quote me on this exactly) reboot the machine without the fuser in with the covers shut and wait for the message 'install fuser unit' install the fuser unit and reboot again. For some reason these machines remember the settings of the fuser unit (not sure what). Usually the thermistor says its at the correct temp the triac does its job and cuts power to the lamps from the AC and jobs a done but not sure what sharp have done this time.

[jp74msj55]

Before you replace the fuser or put it back on the machine after a rebuild (or even take it out of the machine) you should (dont' quote me on this exactly) reboot the machine without the fuser in with the covers shut and wait for the message 'install fuser unit' install the fuser unit and reboot again. For some reason these machines remember the settings of the fuser unit (not sure what). Usually the thermistor says its at the correct temp the triac does its job and cuts power to the lamps from the AC and jobs a done but not sure what sharp have done this time.

There was a tech pub about thermistats being to close to Belt. New housing available that moves them slightly back. Here you go.MFP-TB-1677

[HikingAK]

There was a tech pub about thermistats being to close to Belt. New housing available that moves them slightly back. Here you go.MFP-TB-1677

Had this issue. MFP-TB-1688:

Go into sim 55-1
SW 22
Data 8 change setting from 0 to 1.

Good luck!

[repn1999]

I would make sure you have a power filter on it and update to latest firmware 7.60. I have also done the dip switch thing and seems to also work but these other 2 items will ensure the machine works properly over its life. other thing to check is wall voltage. machine must not EVER go below 110v for US and should be on a dedicated outlet

[repn1999]

ALSO....do not remove the fuser with the power on. Phoenix machines use a different type of thermistors that can be electrically damaged if disconnected while powered, causing random H4-XX codes. I got that tip from the engineers while training on the series.

[imran]

There is a new firmware : 06.50.Z1.B0

Hi we also facing same problem with reconditioned sharp mx6070 image is not fix completely change toner fuser belt lower roller thermistor but same problem if there is a firmware please send my email imrancpro@gmail.com thanks