Hi.
I'm hoping someone out there can take a look at the links below and tell me how to fix a problem with our HP Colour Laserjet 4700 printer. We have 3 of these printers in our ICT Suites, and they've been working merrily for the past 5 years. Yesterday however, 1 of the printers has decided to put a magenta shadow on every colour printout. You can see this more clearly on the Page 2 image.
I "think" on Page 1, that the toner is supposed to fill the boxes, but you can see that the only 1 to do this correctly is the black. It may be a red herring, but I thought I would mention it.
The printer wasn't low on toners, fuser, or transfer kit. Literally 1 day it was working, come in the next day to find that I need the old school cardboard 3D specs to read the printouts.
Since it has been working for a long time and we have other printers of this model, I'm going to discount drivers as the cause. The other 2 printers are still working without fault *touch wood*
Also because we have more than 1 of these printers, I've been able to try the following.
Swapped the Fuser and Transfer kit with another printer. No change, and fault doesn't occur on 2nd printer.
Swapped the Toners, 1 at a time, with another printer. Same results.
Tried printing from the front loading Tray 1. Same results.
Put in a full set of brand new toners. Same results.
I Googled the error and have performed a Full Calibration.
So here I am... hoping that someone can help me out.
Many thanks.