HP COLOR LASER-JET CLEANING PROCEDURE- 8500 – 8550 Printer Family
Cleaning procedure that user can do.
Clean the post charger on the transfer drum if there are
light streaks in halftone areas.
To clean the post charger
1 Open the right upper door.
2 Locate the post charger unit cleaner next to the transfer
drum handle.
3 Slide the post charger unit cleaner across the bar several
times.
4 Push the cleaner back into place.
5 Close the right upper door.
Cleaning the density sensor
Clean the density sensor after replacing the imaging drum and
when printed colors are inaccurate.
To clean the density sensor and erase lamp.
1 Open the right upper door.
2 On the inside of the door, locate the density sensor and
the density sensor brush. Use the brush to brush off toner particles from the density
sensor and the erase lamp. 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 Replace the brush.
4 Close the right upper door.
Cleaning the transfer charger
Clean the transfer charger when irregular wavy patterns
appear in solid backgrounds.
To clean the transfer charger
1 Open the front door.
2 Find the knob below the transfer charger.
3 Pull the knob out and push it back in.
4 Close the front door.
Cleaning the toner catch tray
The toner catch tray will not normally have much toner in
it. Clean the toner catch tray before moving the printer to another location or
when performing routine maintenance at the customer site.
1 Open the front door.
2 Remove the toner catch tray cover by releasing the tab on
the right side of the cover with a small screwdriver.
3 Remove the toner catch tray.
4 Vacuum toner out of the tray, or use a hand wipe to clean
the tray if there is a small amount of toner in the tray.
WARNING: Do not use a
regular vacuum to clean up toner. The toner can penetrate the vacuum bag, and
toner might be harmful if inhaled.
5 Re-install the toner catch tray and cover, and close the
front door.
Cleaning the toner catch tray
The toner catch tray will not normally have much toner in
it. Clean the toner catch tray before moving the printer to another location or
when performing routine maintenance at the customer site.
1 Open the front door.
2 Remove the toner catch tray cover by releasing the tab on
the right side of the cover with a small screwdriver.
3 Remove the toner catch tray.
4 Vacuum toner out of the tray, or use a hand wipe to clean
the tray if there is a small amount of toner in the tray.
WARNING: Do not use a
regular vacuum to clean up toner. The toner can penetrate the vacuum bag, and
toner might be harmful if inhaled.
5 Reinstall the toner catch tray and cover, and close the
front door.
