Konica Minolta C451 embedded network port is not working

SOURCE: error c3921

C3921: Fusing sensor wire breaks detection (Center of the heating roller)...

• At the warm-up stage, the heating roller
thermistor/3 voltage does not decrease by
predetermined steps (temperature rise)
within a predetermined time.

Check the fusing unit for correct installation
(whether it is secured in position).

Check the open/close operation of the
upper right door.

Check the fusing unit, IHPU, PRCB and
REDB for proper connection and correct or
change as necessary.

If that check still give you error code 3921

Change fusing unit

SOURCE: Konica Minolta c451: Tray 1 is not available

look behind the tray for paper....
if not do the folowning
power machine off from main switch sould be on the side or open the front door it;s on bottom left side.hold down the utility botton while powering on keep holdin untel prompted with message ...TROUBLE RESET press it should say ok than powr machine off wait 20sec power back on
hope that help
keep us posted

SOURCE: Konica Minolta BizHub C451 printing red lines down documents

your imaging unit is damaged. call minolta guys to have a look it at and change it if neccessary

Konica Minolta Error Codes and Solutions

• 210 Answers
• Posted on Sep 03, 2009

SOURCE: network configuration for a minolta konica c451

If you know the IP of the machine, just type it in the browser address and you'll have access from there.

Reset your Toners and Imaging units for Minolta Bizhub and CF series.
http://www.chipreset.eu

SOURCE: how do you reset the konica minolta bizhub c451

Network settings are accessed through the Administrator menu. Press Utility/Counter, then choice #3 should be Administator Settings. Enter your admin password and Network Settings should be choice #5.
Also, if the bizhub is already on the network, you can enter the IP address into your web browser and log in as an administrator to get to the network settings.