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HP LaserJet Enterprise M609

Troubleshooting. Image Defects 3

Image placement defects

Description

Margins and skew:
The image is not centered, or is skewed on the page. The defect occurs when the paper is not positioned properly as it is pulled from the tray and moves through the paper path

Possible solutions

  1. Reprint the document.
  2. Remove the paper and then reload the tray. Make sure that all the paper edges are even on all sides.
  3. Make sure that the top of the paper stack is below the tray-full indicator. Do not overfill the tray.
  4. Make sure that the paper guides are adjusted to the correct size for the paper. Do not adjust the paper guides tightly against the paper stack. Adjust them to the indentations or markings in the tray.

Light print

Description

The printed content is light or faded on the entire page.

Possible solutions

  1. Reprint the document.
  2. Remove the cartridge, and then shake it to redistribute the toner.
  3. Mono models only: Make sure that the Economode setting is disabled both at the printer control panel and in the print driver.
  4. Make sure that the cartridge is installed correctly.
  5. Print a Supply status page and check for life and usage of the cartridge.
  6. Replace the cartridge.
  7. Check the transfer roller for correct seating and for dust or dirt buildup. Clean or replace the transfer roller as needed.
  8. Perform a high-voltage power supply test.
    If the HVPS test page comes out lighter than expected, try another toner cartridge to see if the issue happens with multiple cartridges.
    Check if the high-voltage contacts are dirty, bent or damaged. This might cause the drum not to charge fully.
    NOTE: The HVPS contacts cannot be replaced.
  9. If the HVPS test is not successful or if the issue persists, replace the highvoltage power supply.

Output defects

Description

Printed pages have curled edges. The curled edge can be along the short or long side of the paper. Two types of curl are possible:

  • Positive curl:
    The paper curls toward the printed side. The defect occurs in dry environments or when printing high-coverage pages.
  • Negative curl:
    The paper curls away from the printed side. The defect occurs in high-humidity environments or when printing low-coverage pages

Possible solutions

  1. Reprint the document.
  2. Positive curl:
    From the printer control panel, select a heavier paper type. The heavier paper type creates a higher temperature for printing.
    Negative curl: From the printer control panel, select a lighter paper type. The lighter paper type creates a lower temperature for printing. Try storing the paper in a dry environment prior to use, or use freshly opened paper.
  3. Print in duplex mode.
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