Re: xerox 252 not printing cyan anymore
Your tech must know when there is not voltage on drum or this voltage is low the image looks like you posted here. The used name for this is background.
But if the paper is rough / sand like that mean the developer is on the paper and this should not happen even there are low voltage on cyan drum.
The developer unit and drums act as a unit so you need to check also bias voltage.
Something is wrong if the developer gets on paper.
Easier at make checkings I dont know.
xerox 252 not printing cyan anymore
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Re: xerox 252 not printing cyan anymore
Unfortunately there is no magic switch hiding in the machine. I suggest you preform the procedure:
Originally Posted by adrianstoYou need to check voltages on HVPS Developer Bias Pwb = item no. 16
Measure the bias voltage, on electronic board, for all three colours and compare.
If you have voltages there then you can change the item no 15 = Charge HVPS.Leave a comment:
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Re: xerox 252 not printing cyan anymore
image.jpg
You dont think there is something else much simpler to think of that could be causing this. Before that we start looking into electronic boards?Leave a comment:
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Re: xerox 252 not printing cyan anymore
You need to check voltages on HVPS Developer Bias Pwb = item no. 16
Measure the bias voltage, on electronic board, for all three colours and compare.
If you have voltages there then you can change the item no 15 = Charge HVPS.Leave a comment:
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Re: xerox 252 not printing cyan anymore
Charge HVPS.jpg
That other Forum wont let me load photos. It's no wonder more people use this one.Leave a comment:
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Re: xerox 252 not printing cyan anymore
Check developer bias contact as on attachment pictures.Leave a comment:
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Re: xerox 252 not printing cyan anymore
Because the machine prints a rough surface blue on whole sheet.
According to him, he never encountered this problem, and does not know how to fix it.
Any ideas?Leave a comment:
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Re: xerox 252 not printing cyan anymore
You don't have already a service manual for this copier ?Leave a comment:
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Re: xerox 252 not printing cyan anymore
First step is to go into sevice mode and choose cyan 50% test print on A3 format.
Select execute then panic stop the machine while printing the test.
Open the drums drawer and check if there are cyan toner on cyan drum.
If exist then go to the ibt and check for btr1.
If no toner at all on cyan drum then the problem can be from defective cyan drum, defective developer unit or lack of voltage on dev unit.
In the worst scenario there is a problem with cyan ( laser unit ) ROS
i have already changed the cyan drum and the cyan developer housing from another machine.
so the only thing left to check is the lack of voltage on the developer unit.
how do I check that?Leave a comment:
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Re: xerox 252 not printing cyan anymore
First step is to go into sevice mode and choose cyan 50% test print on A3 format.
Select execute then panic stop the machine while printing the test.
Open the drums drawer and check if there are cyan toner on cyan drum.
If exist then go to the ibt and check for btr1.
If no toner at all on cyan drum then the problem can be from defective cyan drum, defective developer unit or lack of voltage on dev unit.
In the worst scenario there is a problem with cyan ( laser unit ) ROSLeave a comment:
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Re: xerox 252 not printing cyan anymore
Hi everyone,
I just changed the MOB sensor on my xerox 252 due to a faulty misregistration problem, and now the machine does not print cyan anymore.
Is this related to the MOB sensor? Registration is perfect now, but I still get all NEG on regisrtation procedures. How is that possible?
Any idea about the problem with the missing cyan.
By the way, I changed IBT belt and put new cyan drum, still same problem.
your Help is very much Appreciated.
Check 1st BTR.Leave a comment:
Leave a comment: