Printer marks on paper

Try printing from the manual feed tray(tray 1). Put a few sheets of paper in the tray. Print anything that is more than two or three sheets of paper. The paper path test is good, 10 sheets. As the paper gets about halfway into the printer, open the top door. Pull out the toner cartridge. Look down at the paper. If it's dirty it has to be the toner or the transfer roller. If it's clean it could be a dirty paper path or fuser.
Vacuum out the printer, if you have mounds of toner laying in the paper path, everything that comes out of the printer will be dirty.

This is a problem with your paper. Using multi-part forms on an impact printer will get lighter print on each layer working from the top form to the bottom. The "carbon" paper has to impact the paper hard enough to make the marks. If your top and bottom copies look good but some in the middle are light it is a problem with the "carbon" paper and not the printer.
Now IF the top page is light and each copy under that is getting lighter then you need to close your platen gap (the lever on the right side of the machine mark A B C) go one click at a time (darkening) until the print quality looks good (or you go too far and it pinches the paper and jams *not good*)

Hello sir; It seem like have pressure roller dirty just use alcohal to clean up.

Does it do it on prints aswell as copies?

If so open up the Left hand side door if you peer inside at the fuser (hot bit) can you see any damage. if so needs replacement.

Also could be the drum, look in the same area at the green/blue cylinder, these do up to approx 30,000 pages.

Hope this helps.

All color printers have a calibration mode.Essentially it makes sure that everything starts and stops at the same time.It should be accessible on the contol panel

Have you cleaned the feed roller? If it's dirty it'll spin but won't pick up any paper. Look at the paper after a "jam." Can you see any black roller marks on it? That's a sure sign of a dirty roller. If you suspect a dirty roller, clean it with a little alcohol on a cloth.

Hi,
You don't say whether the mark is a dent/dinge in the paper or whether it is a dirty or inky mark. If it is one of the rollers pressing and making a dinge in the paper you need to check for flat spots on the rollers. Do check all the rollers as the problem may be caused by another roller not gripping properly or the feed rolls being twisted therefore the one where the dinge occurs is over compensating. You can get rid of small flat spots or shiny bits on the roller by GENTLY roughening the roller feed wheels with a fine emery board. This will also clean off any dirty marks on the roller. You can clean dirty marks off the rollers with a non-lint cloth/specialist wipe. (I use baby wipes). Make sure you get rid of all the dust, as this will cause more marks. Clean the platten glass, again with a glass wipe or windowlene to get rid of any marks there. It is also worth taking out the catridges and wiping the ink surfaces. I use kitchen roll and the a baby wipe. Do test the baby wipe first to make sure that it does not damage the printer. If it is possible without taking the printer to pieces wipe the cartridge feed bars. I use a oil based specialist wipe fro this. Another thing that could cause the symptom that you describe is a piece of debris/stuck paper in the feed path. So check that the path is completely clear. You would be amazed at the impact of even a tiny scrap of paper stuck can have.
If you printer has a clean cartridge utility, do that for both cartidges and run the alignment routine before using the printer again. Print a test page to check that you have got rid of all the marks.
Good Luck Please send me feedback so that I know that this fixed the problem.
Carrie

Try to print in high quality paper a thick paper

clean the ink box from printer where the cartidge park

Does the fault clear when you open/close? If it does you probably don't have a jam.
Does the machine begin to try to make copies, then stop-if so it has probably failed to feed off the tray, hence the jam message.If this is the case, pull out the paper tray, check for obstructions, clean feed rollers and try again.Are there "skid marks on the paper(indicating the rolls have turned?) If so rolls could be dirty/worn. If no skid marks, can you determine if the rolls did in fact turn? Go from there