Consequential costs, and support speak against a purchase

I began to get angry, as the included black and white cartridge was empty. I understand that HP is only partially filled cartridges are included with the purchase of the printer. But then I was able to observe a strange phenomenon:
The capacity of the three color cartridges decreased rapidly without color prints were carried out.

Some facts about this:
Each calibrating the printer, the capacity of the remaining pages decreased. The HP ToolboxFX program shows this change to good. Here to illustrate the mitprotokollierten values ​​of a few days:
February 10th
cyan: 54 remaining sides
magenta: 48 remaining sides
yellow: 50 remaining sides

February 12th
cyan: 45 remaining sides
magenta: 45 remaining sides
yellow: 45 remaining sides

16 February
cyan: 22 remaining sides
magenta: 22 remaining sides
yellow: 22 remaining sides

In summary, this means that within 6 days the toner reserve the color cartridges has declined by more than 50%, without even a color page printed. There were printed in this period only (a few, about 10) black and white pages.

The use HP remained very limited, expressed positively. The Support pages on the Internet are built very confusing, partly in a mixture of English and German, some dead links within the HP website.
I found a paid Hotline. (14 ct per minute). After I had described the case, I got (summarized) the following information:
- You pointed out to me that I am but before buying the printer while support should inquire. When I objected, I could not ask for a mistake that could not be known to me before buying before making a purchase, I answered the lady that normally informed comprehensively before buying.
- Furthermore, they advised me to work with two printers. With an HP laser printer for black and white prints with an HP printer that should be available only for color printing available.

I then tried, through the Internet (support contact) to get competent help. Unfortunately in vain. They referred me turn to the telephone hotline. And because the cat biting its own tail.

Here is the e-mail responses:
"Thank you again taken up contact with the technical support of HP.

HRE request has been received by the end customer support.
However, your device comes from the Business Line.
Inquiries about these products answered to another department. Furthermore, the Business Department at only telephone support so that we can not be forwarding your request.

To reach the correct department, we ask you to contact the Business Line one of the following numbers. "

And the last e-mail:
"Thank you again taken up contact with the technical support of HP.

As the business department works I do not know because this is not working in the house with us.

I have only the possibility to you to call the contact that department, to support myself, I have no influence.

For further questions we are of course in the future at your disposal. "

So much for the support from HP.
After this experience, I can only agree with the reviewers who complain about the support of HP and discourage the purchase, because the follow-up costs for toner are not calculable.