C-2551 Konica Bizhub C250

[Cantechman]

These are all the possible problems...

Imaging Unit /C
Toner Supply Motor C/K (M6)
Mechanical Control Board (PWB-M)

MFP Control Board (PWB-MFP

[jma676]

To follow up, we are still stumped here. As I said before, we have tried multiple Cyan I.U.s in this thing, and after a while, each one locks up, as if it is OVERFULL. We brought one in and took it apart to check it out and it is not only full, it is overfull. It was packed right up to above the edge of the mag roller and didn't want to turn. Also, we confirmed that the toner feed motors were turning. The tube IS NOT clogged. We sent the PWB-M in for repair and were told it checked out good. Konica had a help-desk entry about the power supply being the culprit, so we sent it in and it also checked out good. We are sort of up a stump. If anyone has any more ideas, PLEASE help. Thanks.

Just review the units are correct, if you must replace them with new, or if you have some reset units, these units are the same ones that usually cause these types of problems. If you use reset units, is proved necessary to know how is the performance of image stabilization control.


C2551 Abnormally low toner density detected Cyan TCR Sensor.
• TC ratio in the developing machine, which is
determined by Toner replenishing amount control
mechanism, is 5 % or less for a given number of
times consecutively.


C2559 Cyan TCR Sensor adjustment failure.
• TCR Sensor automatic adjustment does not function
properly, failing to adjust to an appropriate
value.


Should first check if the density of toner is low, in service mode, or restart the SC Code opening and closing the door again, the machine tried to restore the density of toner.

All this is possible if you already reviewed that has nothing impermissible contacts of connectors and other parts of the IU. Just replace the unit by Original Cyan or any unit that you check this in good condition.



OK this is obvious, the first thing I must mention is this, just to make clear certain steps.
Clarifies that toner cartridge in this case has no sensor, only based on statistical percentage of consumption.
If the toner consumption is abnormal is also a problem.

[ineo+6501]

Just review the units are correct, if you must replace them with new, or if you have some reset units, these units are the same ones that usually cause these types of problems. If you use reset units, is proved necessary to know how is the performance of image stabilization control.


C2551 Abnormally low toner density detected Cyan TCR Sensor.
• TC ratio in the developing machine, which is
determined by Toner replenishing amount control
mechanism, is 5 % or less for a given number of
times consecutively.


C2559 Cyan TCR Sensor adjustment failure.
• TCR Sensor automatic adjustment does not function
properly, failing to adjust to an appropriate
value.


Should first check if the density of toner is low, in service mode, or restart the SC Code opening and closing the door again, the machine tried to restore the density of toner.

All this is possible if you already reviewed that has nothing impermissible contacts of connectors and other parts of the IU. Just replace the unit by Original Cyan or any unit that you check this in good condition.



OK this is obvious, the first thing I must mention is this, just to make clear certain steps.
Clarifies that toner cartridge in this case has no sensor, only based on statistical percentage of consumption.
If the toner consumption is abnormal is also a problem.

Dear dear dear, this guy cracks me up

[Chromatik]

Cracks? Looped!*

[jma676]

Next week, we talked*