Cleaning the rollers on your HP LaserJet 4 is a way to avoid jamming and having multiple pages feed on the printer. The manufacturer recommends these rollers be replaced after a set number of prints; however, unless the rollers are cracked or show flat spots, a five-minute cleaning can get additional use out of the rollers.
- Skill level:
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Things you need
- Lint-free cloths
- Isopropyl alcohol
Turn off the printer and unplug it. Open the top cover and remove the toner cartridge by lifting it straight up out of the printer. Pull the front tray open. Locate the MP roller at the bottom left of the inside of the printer. Scrub the roller with a lint-free cloth dampened with isopropyl alcohol. Rotate the roller by hand until you have the entire roller clean. Dry the roller with another lint-free cloth. Push the front tray closed.
Pull out the paper trays and set them aside. Turn the printer onto its left side. Locate the pickup roller on the underside of the machine. Scrub the roller with a lint-free cloth dampened with isopropyl alcohol until it's clean, rotating it as you scrub. Dry it with another lint-free cloth.
Turn the printer back up to its original position. Reinsert the paper tray. Open the top cover and reinsert the toner by sliding it straight down into the printer. Plug in the printer and power it on.
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