Black prints 1" either side of page. middle fades to nothing.

Your toner cartridge may be the culprit.
Take the cartridge out and shake sideways and up/down. Reinstall it and try again.
If it's still printing faded side, replace the cartridge.

Hi Kath,
I expect you have it sorted by now.
I think you might have had one off the developer tanks stuck or broken. If the developer roller does not turn then the colour quickly fades along the page. If you tried to do a test page and that was good then there was nothing wrong with that side of things.
Good luck.

1. Go to menu set as default.
2. Do color calibration.
3. Print PQ test pages, observe the colors, chk
4. Print demo page. chk
5. Print from different file/system..

It's possible that this could also be down to a toner cartridge inside the printer. I would recommend running off a copy of the colour laser test page found here.

The colour bars towards the bottom of the page separate cyan, magenta, yellow and black. Hopefully you will be able to notice that one colour is affected more than the others and replacing that colour may help.

Apologies if you have tried anything similar previously.

sounds like your black toner cartridge is getting low or not filled evenly. To fix this until it get a bit lower on toner just take the cartridge out and holding it up right give it a few shakes side to side. The will spread the toner power out inside and you should be printing normally again.

This can also happen if you moved or bumped the printer. Usually you only see this when the toner is low or after you print a lot of pages. Most text is in the mid of the paper so thats where the toner get s used the most.

Everyone will tell you that it's the Imaging Unit - happy to say that's not true. If it was the imaging unit the colors would not come out right either. I bet if you print a test page that all the colors come out fine across the page. It's only the black.

Also - if you replace the black toner cartridge, or reinstall your printer and drivers like some people will tell you - still no results.

The problem is in the black toner cartridge PATH inside the printer. Something has jammed it up a bit. Try taking out the black cartridge and blowing firmly into the small hole at the bottom of the spout that looks to have a sponge inside. Use a straw and make sure your air blown is dry. Then lightly tap the cartridge a few times. Then use the straw and once again blow very firmly inside the receiving path (inside the printer) for the spout on the cartridge. Make sure you are blowing into the spout path at the bottom - not the gear drive path in the middle - as that will not do any good.

Replace the cartridge, warm up and print another black and white page. You should see that the faded out section is gone or diminished in size. If it is not gone, simply repeat the above steps until it is gone. You will see that the faded out strip gets smaller and smaller each time until it's gone. I had to repeat five times, but eventually got it corrected. Now prints like brand new so don't get discouraged.

Loki

Is the toner orginal?
Try printing a test page and see how that comes out?
Try shaking the toner it might be stuck on one side.

Thanks

Sophia

You just might have a faulty black toner cartridge think back did the problem arise when you installed the new black cartridge. Also is the toner a original if not change for a original.

Hope this Helps
Thanks J

The duplexer is bad or needs to be realigned, shake up the cyn color. it mostly likely low.

I have a SCX-4100 Samsung, replaced the tonger cartridge, it was working fine for a few hundred sheets of printing, but after that, the left side of the page was printed very light, faded.
If I run the "Clean Drum", it will print a litter better, but still faded.
What can I do to correct this problem?
Thank you
TT