Samsung CLP 510N
When I print consecutive pages some traces of the previous page print on the next page. I think the printer did not clean Transfer Belt or Drum after printing, and I don’t know what I should check and do to resolve the problem. The same happened when I print Recto Verso or in Duplex Printing. Any Help would be much Appreciated.

Experienced technical support provide their insights in answering this question :
Simply look at the drum and the belt. If there is still a latent image on either one, that is what you should replace.

How to Identify and Fix Common printer Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

If a vertical white streak or faded area appears on the page, the toner supply is low. Install a new toner cartridge (see Replacing the toner cartridge).
The machine may be configured incorrectly. Check the Printing Preferences to ensure that all of the print settings are correct. The printer driver may be incorrectly installed. Uninstall and reinstall the machine`s driver.
During the printing process, paper, toner and dust particles can accumulate inside the printer. Over time, this buildup can cause print-quality problems such as toner specks or smearing. This printer has a cleaning mode that can correct and prevent these types of problems.
Remove the ink cartridge from your printer and then dip a cotton swab in hot water or isopropyl alcohol and rub it against the print head. This should loosen any crusted ink.
Printers may produce poor quality printing if they are exposed to too much heat. Don`t place your printers in a high-temperature area or near other devices that produce excess heat. In addition, keep them away from windows, where heat and humidity can be high.
Wipe clean the cartridge carriage where the cartridge connects to remove any dried ink (make sure the printer is off and unplugged). If the printhead is built into the printer, clean where the ink comes out with a damp cloth. Re-install cartridges and run a print head cleaning process.
Wipe the print-head lenses with a lint-free cloth. Avoid touching the lens with your bare hands because the dirt and oil on your fingers can decrease print quality.
Printing is vital to all businesses so ensuring your laser printer is thoroughly cleaned is crucial as it allows your machine to continue working efficiently. Cleaning a laser printer is easy with the correct equipment, however they are prone to dust and debris.
Place the toner vacuum in the printer chassis, ensuring that it does not come into contact with any internal surfaces. Gently and slowly use the toner vacuum to remove any spilled toner from the internal components. Take care to follow the manufacturer`s instructions for operating the toner vacuum properly and safely.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Print file sent but no printing occurs
ANSWER : Been working on these since they first were released. Never seen a problem like yours. If it happens again, try doing an engine test, as it bypasses the formatter board. The engine test is located at the right side of the manual tray opening. Look for a hole in the side wall. Stick something like a paper clip into it to actuate the test button. It will then print a lined test page. If it does that, then it points to the formatter board as the cause of your problem.

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Samsung CLP 510N

Prints blank pages, won't print from computer
ANSWER : Don’t know why you replaced the fuser, but assuming you had print before, then it must have been something you did during the procedure. Only thing I can suggest is to recheck your work. Just because you reinstalled a connector doesn’t mean that it is seated firmly enough to work. Any flat ribbon connectors that you removed and reinstalled, check to see that the contacts are all flat and not peeled back.

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Samsung CLP 510N

when printing front and back, the front will print well but the back will fade
ANSWER : It happens because second side voltage is much higher and the board breaks. Are you getting this issue in auto duplex only, or same error you are getting when you print second side manually?

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Samsung CLP 510N

Won't print after cleaning the printhead
ANSWER : Not a good idea to take the printhead out. You can clean it just as good with it in place. Time to buy a new printer.

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Samsung CLP 510N

Epson Artisan 835 print head cleaning question
ANSWER : I had the same problem. After reading the comments, I tried Liquid Wrench spray. 1st try got about sixty percent improvement. Tried again this time I let it set for about 10 min then did a head cleaning. Completely solved the problem. I am a little concerned about its use on plastic. So far so good.

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Samsung CLP 510N

Printer won't print – reassembled from an imaging unit clean..
ANSWER : You have to realize the difficulty of troubleshooting a printer that an unexperienced person has taken apart. The pickup roller issue doesn’t sound like it is a worn pickup roller. It seems more like something wasn’t quite put together and is binding the drive motor. Since I can’t hear it or see it, that would be my best guess.

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Samsung CLP 510N

Clean Printing
ANSWER : Simply look at the drum and the belt. If there is still a latent image on either one, that is what you should replace.

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Samsung CLP 510N

My printer feeds through one piece of paper all the way and then a half piece of paper and stops. I pull out the paper to stop the paper jam and then it prints but sounds rough. After printing, it doesn't feed the paper all the way through.
ANSWER : And the first 2 sheets, the full and half sheet that go through first, are blank.

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Samsung CLP 510N