Konica Minolta 350 Bizhub C2557

[DEKA]

replaced drum cleaning blade now i have C2557 code. cleaned sensor and replaced developer and still have code. any ideas? thanks

[D&F]

run F8

[DEKA]

Thanks I will give it a try

[krm]

I have always had to replace drum unit and developer as a set, or 2557 code appears. Clear pc counter and run f-8.

[copytechman]

I concur with this!

A!

[DEKA]

That worked these copiers are driving me crazy with that code What causes this and the drum looked good. I replaced all 3. Is there anything i can do to prevent this?

[backspace]

first open the duplex door
than turn on machine.
it will show door opene.
go to service mode - funcion - f8
Close door and press f8.

PS
First must clear in special parts counter for PC drum.

[Si@danwood]

	Quote:			Originally Posted by krm
	I have always had to replace drum unit and developer as a set, or 2557 code appears. Clear pc counter and run f-8.

Try reseting drum counter then setting ATDC vtge to around the 85 mark!.Run machine up and test about 100 copies to make sure code doesnt return! Saves on a drum and dev!!!!...Si

[chexin51]

bizhub 350
Sometimes the machine jumps into code before you can clear counters and perform F8 calibration because it wants to print a fax or print job in memory as its first priority. here was the solution that worked - thanks Tech Support Montreal for your patience and solid advice.

Problem: glue on drum and cleaning blade was leaving lines on copy
I removed front side cover of drum unit, removed drum, cleaned CL.BL.
but when I put it back in copier, I got a C-2557 code = toner sensor not reading Dev
even after new drum unit, new dev unit, new dev was installed same code

Solution: the following procedure was successful
1. Clear Image memory - docs trying to print ( fax or print job )
at warmup a small + sign appears a left of display - Press 3
select Clear Image Data option
Enter 8 digit serv. code ( 00000000 ) / End
Image Data Clear/Yes.
Exit to get out and turn off/on Main Switch
2. in Service Mode - Clear Special Parts counter
select IU and Dev then C to clear
3. then replace units physically
4. if dev is replaced - Tech.Mode - Function - F8 - Start
dev will calibrate in 2 minutes

[backspace]

OK

1. Clear counter for drum
2. Turn off machine.
3. Open side dore (or duplex door)
4. Turn ON machine
5. It show ,,side door open,,
6. Go to Sevice Mode
7. Find in Function F8
8. Close side door
9. Run F8
10 wait to start button blink green

PS
If parts all new with dev. DV310