error c2151 konica minolta bixhub c450

[javier4065]

my big problem is this copier. I changed the mainboard ,it is on the rear of machine.copier is ok, after a day , display said again error c2151. Why does the mainboard is bad again? what can I do? What iintegrade circuit is bad on the mainboard? thanks in advance.

[laitang]

Re: error c2151 konica minolta bixhub c450

C2151: 2nd Image Transfer Roller pressure/retraction failure

1 Check the M13 (2nd Image Transfer Pressure/Retraction Motor) connector for proper connection and correct as necessary.
2 PC29 (2nd Image Transfer Pressure/Retraction Sensor) I/O check
3 M13 operation check
4 Change PWB-MC

[allan]

Re: error c2151 konica minolta bixhub c450

Clean the Transfer belt retraction sensor. I use a syringe bulb to do that with a pipe attached to it. I could be part a the retraction drive that is faulty. But in my experience it is the sensor.

[javier4065]

Re: error c2151 konica minolta bixhub c450

Clean the Transfer belt retraction sensor. I use a syringe bulb to do that with a pipe attached to it. I could be part a the retraction drive that is faulty. But in my experience it is the sensor.

I changed de sensor and motor,pwb mc, maybe it can be wires. copier worked fine one day, then display said the same error code c2151,thanks for your help another idea?