Bizhub 200 C2557 after dev unit change.

[wseyller]

Error C2557. I changed the developer unit, developer, and the drum all at once. Counters cleared correctly. F8 I noticed was taking longer than usual and it didn't sound like it was doing much. Got C255C error.

After trouble reset it always codes right away C2557

On phone with KMBS rep. We tried different ATDC SET settings no luck. I notice that when running F8 the toner bottle doesn't turn.

Only errors in service history is the C2557 (about 15 of them) and the C255C.

KMBS rep recommended PWB-A board.

Want to see what everyone's thoughts are. I am 100% sure I did the replace of these parts correctly as I have much experience doing these and know how picky they are.

Some history: The drum I just replaced was at 20% when I arrived. I changed this drum and dev back in Feb when it coded C2557. A year before that I changed dev unit, dev, and drum after it had coded C2557.

[Copier Addict]

Re: Bizhub 200 C2557 after dev unit change.

The first place I would start is an ATDC sensor. I know you said you replaced the dev unit, but it could still be bad. Then try the PWB-A.

I have been working on these machines since they came out and last week was the first time I have experienced an issue doing an F-8. I cleared the counters, checked to make sure they had cleared, ran the F-8 and got a C-2557. I again checked the counters and the drum counter had magically gone back to it's pre-cleared state. I cleared it again, ran F-8 and all was well.
I know this has nothing to do with your issue, I just thought I would share. lol

[wseyller]

Yes I always check the counter again before F8. I know the same issues.

But let me ask. Would a bad sensor cause the bottle to never turn during F8. There are no other error codes listed.

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[Copier Addict]

Re: Bizhub 200 C2557 after dev unit change.

As far as I know the bottle shouldn't turn during F-8. Plus, if the sub-hopper is already full, it doesn't need to turn.
The dev comes with optimum t/c ratio so no toner is adding during an F-8

[wseyller]

Ah didn't realize it came that way.

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[fixthecopier]

Re: Bizhub 200 C2557 after dev unit change.

I wish you well. Last month i had a 350 that started doing that. We literally rebuilt the whole thing. Every board, hopper, erase lamp, power supply. Nothing worked. The machine was due to be replaced, and the new one was delivered while service manager was changing power supply. We sent it back to lease company, still broke. Would love to know what fixes it.

[Hansoon]

Re: Bizhub 200 C2557 after dev unit change.

"
Solution ID TAUS0808236EN* Solution Usage 0
Description
What can cause the machine to intermittently display a C-2557 code even after the Imaging Unit and PWB-A have been replaced?
Solution
The machinemay intermittently display a C-2557 code even after the Imaging Unit and PWB-A have been replaced if the cooling fan M5 is starting to fail.
Please replace cooling fan M5 (p/n 9313-1100-33).
SPECIAL NOTE: Solution contribution by Dave Bruni, Workgroup/SSD "

Hans

[wseyller]

Nice find Hansoon. That will be one of the parts I grab from a spare parts machine.

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[rrrohan]

Had this during training today. Techj didn't screw in the 2 screws after removing drum and dev

[EarthKmTech]

Re: Bizhub 200 C2557 after dev unit change.

Have you checked the toner adding solenoid as per my post;
http://www.copytechnet.com/forums/ko...highlight=2557

When it gets stuck open you will get 2557's intermittently as toner is added uncontrollably. Even if it isnt stuck open, operate it and see if the foam is sticky in the open position. if it does not release instantly you have a problem.

[wseyller]

OK I have it fixed I believe. I tried a 2nd IU and it does not code out right away. This was the same behavior as the 1st. But after running F8 you get C255C. Then after that it always codes right way with C2557 after trouble reset. So I replaced the pwb-a board but it still codes out right away after trouble reset. I then try the M5 cooling fan as well but no change. Then I try a 3rd IU and it then worked with no problem. Im wondering if the board was damaging the TCR sensor.

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[blackcat4866]

Re: Bizhub 200 C2557 after dev unit change.

That was a costly fix on an old POS. =^..^=

[richwalker]

Re: Bizhub 200 C2557 after dev unit change.

Have you checked the toner adding solenoid as per my post;
http://www.copytechnet.com/forums/ko...highlight=2557

When it gets stuck open you will get 2557's intermittently as toner is added uncontrollably. Even if it isnt stuck open, operate it and see if the foam is sticky in the open position. if it does not release instantly you have a problem.

I agree with EarthKMTech, check the toner adding solenoid to ensure it's not sticking in the open position. If it is, then clean it and replace developer and run F8 again.

Richwalker.

[wseyller]

Well the problem came back. Going the shop now the get the more parts that were suggested.

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[wseyller]

EarthKMTech hit the nail on the head. That solenoid was stuck open. I removed it and cleaned. Replaced dev and run F8. Feel confident that should do it hopefully.

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