I have a Konica 7145 copy machine that is producing an error of F-51-2 when I turn the unit on. I had a tech come out and told me that the control board is the problem. I replaced it with a known good board but I am still getting the error.
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Re: Konica 7145 F-51-2 Error
Code F51-2 at start-up. Description: Code F51-2 at start-up. Solution:
CAUSE: Code F51-2 may be caused by a failed M11 fixing motor. To determine whether or not the motor has failed, use this procedure:
1. Enter the 47 mode (I/O check mode).
2. Input "40".
3. Input multicode "0". If the M11 motor turns, it is good; if it does not turn, the motor has failed.
SOLUTION: Replace the M11 motor (p/n 56AA80072 for 7222/7228/7235 and p/n 56GA73430 for 7145) if it has failed.
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Error concerning Data transmission Bus or hardware (IR
Input system) Check connections between the MFP Control Board (PWBMFPC) Copier Board (PWB-CF) Some serious money so check all connectors, remove them one by one and check each one for bent pin(s) ensure reseated properly, could also have bad firmware, requires tech, because firmware is on secure web site at Konica Minolta.
Abnormally high toner density detected Black TRC sensor-
1. Correct the TRC Connection on the underside of the imaging unit if faulty 2. Reinstall black image unit 3. Change image unit 4. Change PWB-M 5. Change PWB-MFP
you can try # 2 then run 20-30 sky shops (copies with lid up to make black copies) put a white piece of paper over lead edge section of copy glass so you are only making 1/2 black copies if you don't the copy may jam in the fuser due to excess toner. after running copies turn machine off for 10 secs to reset and power backon. if problem continues I would change the image unit.
tha minolta di3510 developer unit looks the same as the unit for the konica minolta bizhub 350 but the toner sensor in the minolta unit uses a different voltage range for the toner sensor and it will throw this code make sure you have the correct unit for this machine also you can try this go back into tech rep mode and change these settings: select tech rep choice mode select printer tab select atdc sensor gain set the value to about 165 then back all the way out to the ready screen and power the machine off then back on and replenish toner in the user management screen.
it will be under reports, you can set all faxes to do a report after a fax has been sent, ill keep the terminology easy as
Brother, canon, konica blah blah all uses different terminology for it, but there is a setting in reports for user that they can turn on, it like error reporting if a fax deosnt go it will print out a error report so same thing to do with copy report.
I am not an expert. I am someone that is lucky a lot when I have to fix something. I also had the F28-3 error code. The copier would begin to copy. However, when the unit began the printing process, the error code would indicate.
1) I downloaded the Service Manual (not the user manual) and checked the error code. This is what it says: Abonormal separation spark detected 5 times in 20 ms intervals, 5 times in succession for the same job.
2) I went on-line and found a couple of blogs from techs which stated that it in their opinion, it was one of three things, the T/S Corona Unit; an insulation failure which should be indicated by discoloration and a burnt smell where arcing has occurred; and the high voltage unit.
3) After removing the drum assembly and inspecting around all corona units, I could not see or smell any signs of arcing. So, I inspected the T/S Corona Unit and found one of the wires broken.
4) I removed the T/S Corona Unit, disassembled it using the instructions in the Service Manual.
5) I reinstalled the T/S Corona Unit and gave it a try. So far, so good. Copies normally again and no more error codes.
The code is for fusing warm up failure. Turn the machine on, wait for the error, then open the front door - you will see a cover on the right hand side which you need to unscrew and remove, behind that is a board (PWB-S1- Tech. Rep. Setting Switches Board) press the trouble button then reinstall the cover and shut the door. Your printer should now reboot - if the error comes back you will need to have the fuser either repaired or replaced.
It's been a while since you posted that but you may just need to slide it back out and shake it back and forth (long ways) a few times. We had the same problem and the konica minolta tech told us to do that. It worked. DO NOT turn it upside down though.
you need to reset the fuser latch as it has a fuser error code most likely needs new thermisters,
anyways give this a go, hold down 2 and 5 keys together and power on machine, this will put you into to a service mode call 25 mode, go to dip switch 3 and bit 1 and then next to bit 1 hit the key that says turn off,
turn machine off and back on should clear error code, if it doesnt you need new thermisters, even when you put in new thermisters you still need to clear this error in service mode