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I have worked/ serviced similar Laserjet Color Printer with same issue. Actually,
prints with faded colors or different colors are due the the dust/
toner dust accumulated on the optics (mirrors and lenses) inside the
printer, which refect the laser beams to form prints. For instance, red
color is formed by a mix of yellow and magenta toners. The color
is replaced by yellow due the the partial or complete blocking of the
image laser beam for magenta as the mirrors which
reflect laser beam get covered with dust and toner (which partially
blocks the laser beams). Hence the image is
not produced properly. This needs professional hands for servicing and cleaning of the optics inside the printer. Note
that first magenta goes off, followed by
yellow, then cyan and lastly black. This is due to the mirrors
placement inside the printer. Magenta is the last one facing upwards at
45 degrees angle and gets most of the dust and goes off first.
assure that the printer requires ONLY CLEANING OF THE MIRRORS, which
are inside the printer. So, it is advised that you get the printer
serviced by any printer repair/ service professional.
(Please note that the mirrors, lenses and scanner assembly inside such
printers is extremely complex and can get damaged very easily
especially the mirrors).
Hope it would help. If you need any clarification, let me know Good Luck! CreativeTECH
The color of HP LJ 2600n fades due to following reasons
1. the color cartridge near to empty
2. due to dust on reflection mirrors inside the printer
if the color cartridges are OK, then you need help of HP technician support, because cleaning of mirrors is very technical in nature for 2600n.
Dusty Environments can lead to Laser Scanner Contamination. The dust layer on the mirrors prevents proper transmission of the laser output in the imaging system leading to faded colors on the printed page. The initial stages of this failure typically occur in the magenta or yellow color planes as faded or light color. Often the left side is more faded than the middle.
You may need to contact the nearest Authorized Service Tech and get teh Laser Scanner replaced with the new released service part that has a mirror in a location where the dust ideally cannot reach easily.
Also, please ensure that the printer is relocated from the current location to a more dust free zone.
Hope this helps, if so do rate the solution
If the magenta is low the waste bin may be full and that may be causing the problem. If this is the case you need to change the toner. You can try calibrating the printer. You may have to do this 3 times in a row for it to make a difference.
Press Select-check mark button
Use arrows to go to Print Quality Press Select-check mark button
Use arrows to go to Calibrate Color Press Select-check mark button
Use arrows to go to Calibrate Now Press Select-check mark button
Press Select to Confirm Calibrate Now
well, the density is actually a combination of two aspects. The original document settings, especially in color transforms. Usually, the software will have a transform specific for the printer. In my experiences, trying to tweak the printer for each print job, can cause extreme frustration. Check the software manual for settings for your printer, and perhaps you'll get closer to this solution.