Question about HP Officejet Pro 8500 Wireless All-In-One InkJet Printer

1 Answer

Our Trusty steed HP 8500 has just started to print a thin twin line and other spurious marks on the top side of prints. Today i replaced the drum / fuser / other bits but no difference any ideas?

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I have looked at the manual but there are so many possibilites! You can download the manual here and go to page 148 (PRINTING QUALITY PROBLEMS).

Initially I would follow the directions for clearing drum related errors:

Dark or white lines or streaks in all colors, including black.
Print the configuration page five times. The defect should clear
with continued printing. If the defect does not clear, turn the
printer off and on to reset the printer’s density calibration. If the
problem persists, replace the imaging drum. For more
information on replacing the imaging drum, see the installation
guide included with the drum kit.

Then clean the density sensor.
To clean the density sensor
1
Open the upper right door.
2 Use the brush located next to the
sensor to remove all toner particles
from the sensor.
Note
You can also use a hand wipe to clean the
density sensor. To prevent scratches on
the sensor, do not use any paper products,
such as tissue or paper towels, to clean the
sensor.
3 Close the upper right door.

It could possibly be a problem with the transfer drum.

I am sorry this is not of much help!

Posted on Nov 13, 2009

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