Question about Minolta EP4000/5000 CS/PRO Copier

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Minolta 2050 with ATDC set as 140 and current as 0%

My minolta machine prints with dark background. initially it was printing light but after adding a little quantity of toner to the drum it started printing good color but the ATDC set which was initially at 140 against 6.0 can now be adjusted lower than 140 but the current still remained 0%. i was forced to run F5 and it shut down with a C00f31 code. and the dark background still remains. pls assist me with repair tips. tanx

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Hello sir; replace auto toner sensor will be ok, that sensor is located on developer unit.

Posted on Jan 08, 2009

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How to remove dark background on bizhub 350

Make multiple copies of Jet black print for example, open the platen cover and then make blank copies.Print out will be jet black.After about 60 to 70 copies background will be adjusted, if not then replace the toner.After replacing the toner if the background is still there then you must replace the developer.

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Toner not added automatically ,i add toner manually,print become dark

press 0 & 5 simmilutely m/c. on type 200 press start m/c. is moving you see screen when figure is going 230 to 245 then press enter then press intruppt hope your m/c. ready

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This is an imaging unit error, the developer may need to be changed

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Do prints turn out ok how about the meter read report is that ok? setting are offer in the user mode

Jul 11, 2012 | Minolta Printers & Copiers

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Tiene codigo cf-033 la copiadora modelo di-450

you have two different models listed .Well for the Di 450 _CF033 error
Check to make sure that the ATDC value noted after running F8 was entered as the "set" value in the Adjust Mode. If the ATDC "set" value was correct, check the connections between the PWB-A and the ATDC.
To check the ATDC "set" value follow the procedure below:
1. Enter the Tech Rep. mode.
2. Press the stop key and then the start key
3. Select printer.
4. Select ATDC reference value. The current value should be close to 5V and the set value should be the same voltage setting as the current. If the value is found to be at "0V" the ATDC setting was not set properly when new developer was installed.
Note: When installing new developer, make sure that the toner hopper and sub hopper are empty. If not, extra toner may be added at the time the ATDC reference value is set (during F8 process). This will cause light copies. please send more feed back on di 183 problem

Sep 07, 2010 | Konica Minolta DiALTA Di183F Copier

2 Answers

My brand new machine Bizhub 211 have paper jam problem

COF32 means the ATDC sensor has detected some unusually high or low readings.
The ATDC sensor measure the toner lever inside the developer unit.
Try swithcing on/off, open/close the front door to clear the code.
If this doesn't work, you'll need an engineer to reset the ATDC level.

Good luck


Apr 12, 2010 | Konica Minolta bizhub 250 All-In-One Laser...

6 Answers

Our bizhub-250 receives a C2557, need help with service mode

Utility/Counter -> Details -> [STOP][0][0][STOP][0][1]
Go to counter and clear the life of the developer and drums and then run F8 from functions.

Reset your Toners and Imaging units for Minolta Bizhub and CF series.

Jan 11, 2009 | Konica Minolta bizhub 250 All-In-One Laser...

1 Answer

Dark background print in minolta EP2050 mach.

Replace controller/ interface board. The next step would be the regulator board. If you must keep resetting the ATDC and receive different values ( assuming that the ATDC is new) then the problem is back. What supplies/ controls the ATDC? The controller, but forgive me if I am wrong, there is a small interface board after the controller that the ATDC is plugged into.

Dec 24, 2008 | Minolta Printers & Copiers

1 Answer

ATDC: set is 140 but the current is 0%

you need to run F8 FIRST AND than F5
YOU MAY NEED TO RUN F8 few times untel you achieve 4-or beter ATDC VALUE

Dec 24, 2008 | Minolta EP4000/5000 CS/PRO Copier

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