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What causes black lines or smudges down the printer page? What causes faint or missing lines and how to fix them.

What causes horizontal lines when printing and how to fix them.

How to fix the printing black lines issue.

What causes black lines or smudges down the page.

Here are some quick links to help you find the correct solution or the information that you need: Here’s what you’ll learn about printers & black lines If this is happening with your Brother, Canon, HP, Lexmark, Oki or Xerox printer and you’ve had enough then read on…. If the clog is especially bad, expect that this may take several applications with fresh Windex over hours/days before you see results.įorcing any liquid (with a syringe) through the ink supply tubes should only be done as a very last resort as that has the highest probability of causing damage.The image above gives an example of black lines printing down the page. Remember to seal up the printer and allow the ammonia vapors to gradually loosen the dried up ink. Use Windex (not generic) on folded paper towels as shown, as the generic stuff often skimps on ammonia (if it contains any at all). I would start with Part #2 which shows how to properly expose the printhead to ammonia (Windex) which can loosen dried ink and free up the printhead. If your printer is still under warranty, you may want to contact the manufacturer for guidance before attempting any of the steps below. Warning: These procedures are not approved by the manufacturer, may void your warranty (if applicable) and can damage your printer. If you've already tried several cleaning cycles without success, you may consider trying the steps below as a last-ditch effort which can possibly revive your old printer.