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ozstar Frequent Member
Frequent Member

Black is either nil or a greeny colour and only on RGB Not CMYK

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Product Name: Phaser 6250DP
Operating System: Windows 10 x64

Hi,

For a while the black does not show or maybe extremely lightly at times.

I set up a black filled A4 page on CorelDraw and printed off a copy.  It was virtually blank.

In Printer PropertiesI  changed it from CMYK to RGB and it came out a very black sort of green.

I went back to CMYK and it was blank again.

Back to RGB I printed 10 hoping it woud get darker but it didn't.

I printed the Colour Help pages from the Printer LED but no black came out at all. Other colours were fine.

Any help please?

 

 

 

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5 Replies
gabiene Frequent Advisor
Frequent Advisor

Re: Black is either nil or a greeny colour and only on RGB Not CMYK

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Hi,

It looks like the black developer unit which is part of the Imaging unit is the problem. So replace the Imaging unit.

 

Gabi

ozstar Frequent Member
Frequent Member

Re: Black is either nil or a greeny colour and only on RGB Not CMYK

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As I have 2 machines the same, I have used the 2 image units and get the same result. One of the uinits is virtually brand new.

I have a feeling it is the driver that is causing it as both machines got the same problesm at teh same time. I can't recall what drivers I got down for them but I would like to get a 6250 DP drive from years ago so I could see if it would work better. I don't know where I could find a driver though.

You have any ideas?

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gabiene Frequent Advisor
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Re: Black is either nil or a greeny colour and only on RGB Not CMYK

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Try to use drivers for Win7

ozstar Frequent Member
Frequent Member

Re: Black is either nil or a greeny colour and only on RGB Not CMYK

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Thanks, will do tomorrow..

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ozstar Frequent Member
Frequent Member

Re: Black is either nil or a greeny colour and only on RGB Not CMYK

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Yes that did it.  It doesn't show the wrong size anymore and not jamming so far.

In case others have the same problem....

Printed about 200 of 3 different 2 sided images.

First the black didn't come out so eventually found it was the toner was getting clogged in the cartridghe because it had not been used for over 2 years.

With a thin piece of plastic like a straw I opened the cartridge and loosend up the toner and did that also in the cartridge bed where the ink goes into the printer. It was clogged there too a bit.

Then created a A4 image for each of the primary colours and printed them on about 20 sheets each.

Eventually each sheet got better until it was solid colour.

Then printed off a some full colour fliers and they were perfect.

Thank you to gabiene who suggesed the Win 7 driver.  I had tried many drivers but not that one.