Colour test pages print ok except magenta. this prints unevenly from left to right, looks like a gradient dark to light magenta. The solid fill pages are all ok. Is the magenta imaging unit faulty?

Hi.

The defect is called fading print, and may be caused by different faults.

To start, ensure that you have tested different magenta toner cartridges. A defective cartridge can cause the problem.

Ensure that Economy/Fast Print mode is not on. This can cause color fading print in some case.

Change printer settings to higher density and test again.

Adjust the light or darkness levels. If this model has color calibration options, from the printer's front panel Support Menu, select Improve Print Quality? then select Calibrate Colors Menu.

Once you have done all the above, you can say that the printer is defective. In that case most common faults causing fading print on one colour may concern high voltage unit and imaging unit. Most high voltage unit faults will affect prints in other colors.

When the problem is the imaging unit, the print fading is also often accompained by other repetitive defects, like lines, streaks, or fading repeating in a cycling pattern.

To inspect the imaging unit do the following.

Remove the magenta Imaging Unit, keeping the toner cartridge installed.
Do not touch the shiny green surface of the Imaging Unit.
Keep the Imaging Unit in an upright position to avoid toner spills, lift it up andinspect the shiny green surface underneath.
If the shiny green surface has scratches or damage, replace the Imaging Unit.

If the imaging unit is OK, then the problem is the high voltage supply to imaging unit. In that case there are different faults that can cause the problem.

Regards.

Ginko

Hi.

Remember to point out that the printer has always been used and serviced as recommended on user manual, and that you have always used original toner cartridges and compatible paper.

Thanks for the feedback.

Goodbye.

Ginko.

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