View Full Version : Bizhub C253
Brischaffer
08-14-2009, 02:05 AM
I'm working on a NEC IT35C5, and its the equivalent to a Bizhub C253. I'm having a problem with yellow. When I do a Gradation Adj it always comes back in the values as all zeros. I've pulled the springs out in back of the drum for better contacts, replaced the HV PCB. I ran out of time today to try and swith the laser units around to see if that's the problem but I really don't think it is. I'm wondering if anyone has ever come across this problem before. The machine only has 28000 copies on it. I have one right next to it that has 3 times the amount on it. Any help would be greatly appriciated.
Brian
is there a image problem or is it just that you are reading O's on yellow unit?
Brischaffer
08-14-2009, 02:06 PM
There is an image problem too. When you do the gradation, the line that is suppose to be purple is coming out as brown.
sound like you have one or more image units bad
have you run a mono color of each image unit and see if they are correct?
black,cyan magenta,yellow
stevelz
08-14-2009, 03:07 PM
Sounds like the imaging unit is bad. Replace the imaging unit and perform gradation adjustments. This should take care of your problem.
Brischaffer
08-17-2009, 01:46 PM
I don't think it is just because I have the same machine next to it and I put it in there and it works fine. I really don't think its the laser units but I'm going to go out there today and swap them around to see.
backspace
08-17-2009, 02:57 PM
First tray stabilization then check in state confirmatin value for x and correct as necessarily then do gradiation.
malthus
01-19-2012, 08:06 PM
is the test print ie gradiation pattern ok ,are there any warnings ie p codes
Mate thread was posted 2009 ! hope he's sorted it by now :)
emujo
01-19-2012, 08:54 PM
Ain't it always the same..."I need help..Please, please" then never bother with any feedback. And some of these guys (girls) wonder why the usual suspect always get so much grief...Emujo
malthus
01-19-2012, 09:13 PM
if the thread is closed please advise and close the thread ,sorry i have been absent for a while
malthus:rolleyes:
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