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B250 toner hardening/caking on hot roller? Any ideas to cause?

Its between the HV and the printhead PH unit - start by replacing the cheaperst option - i have had one of each.

Go into service mode reset and initialize machine redo set up if no joy replace control board.

It sounds like your 2nd side bias control voltage is out, please check and compare to factory values as per manual or print out.

Unplug hard drive from control board "with machine off" switch machine on without hard drive plugged in and wait for ready to copy, ensure job log is empty on all functions, fax, cop, print and scan....

Agree, replace charge grid, charge wires and most importantly toner collection roller.

There is a tension difference between the upper feed roller and separation roller, replace pressure roller assembly with B210 model as well as tension spring underneath pressure separation assembly

Visit: Chip Resets SA | South African Chip Resetters for more information:)

Our clients at chip Resets SA re-chip all the time and find it a huge cost saving exercise:)

No firmware required!

Just fit hdd and format. All will work well!

Konica Minolta B600/1 or B750/1 are real workhorses! All the print shops LOVE them!

Can you type exactly what the message is on the display?

Hi there

Two ways to enter service mode:

1. Stop 0 0 stop 0 1 - if machine is on and ready

2. Switch machine off. Hold down "utlility" key and switch on. Keep "utility" button in until...

That,s one way to do it but a 220/280/360 Dev/Drum reset tool will reset the Dev & Drums with minimal fuss (anyone could do it) and it costs less to buy the Reset tool than 1 set of Dev units...

Very clever idea, will let my clients know and see what the outcome is, thanks:rolleyes::rolleyes:

Do you have the correct driver installed? If you could log on to the fiery through the web browser you could download the correct driver from the fiery under "web pages, downloads. Also check on the...

Fiery.1

Check out Chip Resets SA | South African Chip Resetters for C220/280/360 Dev Unit Reset tool amongst others.............

When you get to controller detail you can do a printout (print pages) to see whether your machine is set to DHCP. Then go to "run setup" after you have printed out the "config page" to follow the...

Trying to find out whether you have a Fiery installed & enabled. If you press "utility" button is there a "controller detail" in the right hand side top corner of the LCD display?

Trying to find out whether you have a Fiery installed on the machine - if you press utility is there a "controller detail' button in the right top of the LCD display?

The bottom RJ45 is for the machine NIC. Go to service mode, option board status, set to controller 0, exit and restart. Now try with cross over. I think the top one is with Fiery installed, this way...

Agree with dogsbody it works

Agree with RRogers. Try and use generic HP driver - as long as its PCL 5/6 should work.

If all fails put your laptop on the same IP range and log into the web browser with a cross over cable. Log in as administrator and see if you can change the settings under network settings....