Try replacing the toner cartridge (click here to view our selection of toner cartridges). If the print defect is visible on this printout, that means the print defect is occurring before the fuser. Fusers are the main component in a maintenance kit click here to view our selection of maintenance kits for various LaserJet printers.Ģ. If you do not see the print defect on your test page, that means the defect is being added later in the print process by the fuser. Careful! The toner has not yet been fused to the paper, so the print can be somewhat messy on your hands and may smudge easily.ġ. Carefully remove the page by gently pulling the page upwards & free from the toner cavity. Pull the toner cartridge out, and you will find the test page sitting directly underneath the toner.Ĥ. The print job will stop, sensing an error.ģ. Just as the test page completely disappears into the printer, open the toner lid door. Print a test page from Tray 1, the "fold-down" Multi-Purpose tray on your printer.Ģ. It may take a few tries to time this test correctly so the paper stops under the toner but not completely into the fuser.ġ. This will stop the printing so you can pull the toner cartridge out and look at the partially printed paper. You will need to print a page and open the toner lid when you think the paper is underneath the toner cartridge. Color printers are a bit more complex but the idea is the same: you want to interrupt printing right before the page gets to the fusing assembly. This illustration is for black and white printers. As you can see in the diagram below, paper first travels under the toner cartridge and then into the fuser. Otherwise a half-way test is a simple method to determine where the print defect is occurring. If you have a spare toner cartridge or fuser you can swap them to see if the problem goes away. The two most common sources of print defects are the toner cartridge and fuser.
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