C2557 on bizhub 250

[aleksander]

I have problem with my bizhub 250. C2557 appear when I replace the toner bottle. I check the ATDC, increase to 9%. I try to adjust the ATDC until 6 or 6.5%. But the problem still appear everytime the toner is empty. Confusing...
I will appreciate to all of you if you have the solution to this evil code.

[scallanjoe@yahoo.com]

try doing F8//if this dose not do it change dev/&/ drun follow pm instructions to the letter

[perdana]

Normaly TC ratio in this machine is 12% to 14%

[KEVIN900]

I would bet that someone reset the drum counter on this machine, without a new drum. If you wish to be rid of the "Change PC Drum" message on the display, set your dip switches to turn off that message. Change 418-58 to 418-50, no more change the drum on display. But once you get the 2557 code, you have little choice but to replace the drum unit & developer. Ideally, this setting should be done at set-up.

[Hansoon]

I have been lucky several times in the past getting rid of that code by gradually increasing/decreasing TC ratio. Most of those machines where running after that with a TC ratio of 4.5-6% with ATDC set at 157-160. Its a hassle to do and can take more than half an hour but it worked surprisingly often. (The reason we had this happen is that we do mainly refurbs and our stock coming from the wholesaler and or previous techs had before swapped IU's obviously.)

Hans

[aleksander]

I would bet that someone reset the drum counter on this machine, without a new drum. If you wish to be rid of the "Change PC Drum" message on the display, set your dip switches to turn off that message. Change 418-58 to 418-50, no more change the drum on display. But once you get the 2557 code, you have little choice but to replace the drum unit & developer. Ideally, this setting should be done at set-up.

Thank you. I'll check again.

[aleksander]

I have been lucky several times in the past getting rid of that code by gradually increasing/decreasing TC ratio. Most of those machines where running after that with a TC ratio of 4.5-6% with ATDC set at 157-160. Its a hassle to do and can take more than half an hour but it worked surprisingly often. (The reason we had this happen is that we do mainly refurbs and our stock coming from the wholesaler and or previous techs had before swapped IU's obviously.)

Hans

Thank you.

[aleksander]

Normaly TC ratio in this machine is 12% to 14%

Impossible man. TC ratio on bizhub 350/250 at around 5.5% - 6.5%. TC ratio 12 - 14% that you told are for Dialta Di2510 and Di3510. Not for bizhub 350/250.

[Si@danwood]

set atdc value to 85, problem sorted ...simples!!

[Toefur]

Solution ID

TAUS0656158EN* Solution Usage 5

Description

Intermittent C2557.

Solution

CAUSE: The serial number input for the machine is incorrect.
SOLUTION: Input the correct machine serial number by performing the following procedure:
1. Enter the Tech Rep mode.
2. Select System 1.
3. Select Serial Number.

4. Enter the correct serial number and press END.

Solution ID

TAUS0700478EN* Solution Usage 2

Description

C2557 while copying.

Solution

CAUSE: PWB-M has failed.
SOLUTION: Reseat all connectors on PWB-M. Replace PWB-M (p/n 4038 0101 05) as necessary.
SPECIAL NOTE : Solution provided by Richard Brown, The W.S. Reed Company.

[aleksander]

Solution ID

TAUS0656158EN* Solution Usage 5

Description

Intermittent C2557.

Solution

CAUSE: The serial number input for the machine is incorrect.
SOLUTION: Input the correct machine serial number by performing the following procedure:
1. Enter the Tech Rep mode.
2. Select System 1.
3. Select Serial Number.

4. Enter the correct serial number and press END.

Solution ID

TAUS0700478EN* Solution Usage 2

Description

C2557 while copying.

Solution

CAUSE: PWB-M has failed.
SOLUTION: Reseat all connectors on PWB-M. Replace PWB-M (p/n 4038 0101 05) as necessary.
SPECIAL NOTE : Solution provided by Richard Brown, The W.S. Reed Company.

OK, I'll check it. But, is the serial number in tech rep mode can make C2557? I don't get it.
Thank you.

[aleksander]

set atdc value to 85, problem sorted ...simples!!

So simple like that? could you tell me why should I set the atdc value to 85? any explanation? thank you.

[KEVIN900]

aleksander, change the drum & developer, already. It's been 5 days. Run F8 and get on with your life. Your customer can't be liking this wait.

[aleksander]

aleksander, change the drum & developer, already. It's been 5 days. Run F8 and get on with your life. Your customer can't be liking this wait.

I've already change the drum & developer. And That's all fix. Thank you.

[Si@danwood]

So simple like that? could you tell me why should I set the atdc value to 85? any explanation? thank you.

Always works for me,a tip i picked up along the way. Saves money on new drum and developer but be sure to test a 100 or so before leaving the customer