blue and yellow won't print...

[Guest]

Does anyone know why my printer refuses to print blue and yellow (it does
print red), and how to solve this problem? I've replaced the cartridge twice,
so that definately can't be the problem. And I've cleaned the nozzles as
described in the manual. I've also let the printer clean it's cartridges, but
all of this hasn't helped.
It's a hp Deskjet 815 C.
I'm getting quite desperate so thanks for your time and help!

 

[Guest]

Have you tried printing a Test Page?
Start>Control Panel>Printers and Faxes>
rightclick your printer and click Properties
Towards the bottom is a button "Print Test Page"
Try it, post your results. If nothing, go here:
HP Deskjet Printers - Installing the Printer 815C with the Driver Include
http://h10025.www1.hp.com/ewfrf/wc/document?lang=en&lc=en&cc=us&docname=bpd09005&lang=en&cc=us

 

[Guest]

The test page printed:

printer model: HP DeskJet 815C
color support: yes
port name(s): LPT1:
data format: RAW
share name:
location:
comment:
driver name: UNIDRV.DLL
data file: HPVDJ815.GPD
config file: UNIDRVUI.DLL
help file: UNIDRV.HLP
driver version: 5.00
environment: windows NT x86
additional files used by this driver: (10 locations were printed)

 

[Guest]

Does the test page show any of the colors you state are not printing?
The test page should also do a color test. Color support: yes or no?
Did you remove the covers off the printhead of the color cartridge?

 

[Guest]

No, there is only red (in the windows logo in the top, left hand corner) and
black (all of the text) on the test page.
It does say "color support: yes" but it doesn't look like he tried to print
colors (except for the windows logo)...
Yes, I removed the plastic cover.