My experience with HP Chat Support

Enver Masud : HP Photosmart C4250, Serial No MY75NFN0XX Mac OS X 10.5.6: Alignment failed - fails to detect alignment page. Repeated procedure specified at your site. Using black cartridge only.
[An agent will be with you shortly.]
[You are now chatting with BRAY_Bidhubhusan .]
BRAY_Bidhubhusan : Welcome to HP Total Care for Printer support. My name is Bidhu. Please give me a few moments while I review your issue description.
Enver Masud : ... actually color cartridge is out of ink. I don't need it.
BRAY_Bidhubhusan : May I know the Model number and Serial number of your Printer?
Enver Masud : It is in the first line of my message
BRAY_Bidhubhusan : Enver, Okay , I got it.
BRAY_Bidhubhusan : Thank you for the information.
BRAY_Bidhubhusan : Enver, Could you please elaborate the issue, so that I would assist you better.
Enver Masud : The message I get in the printer LCD is "failed to detect alignment page"
BRAY_Bidhubhusan :
Enver, It is Okay.
BRAY_Bidhubhusan : Enver, could you please tell me when did you get the message ? I mean what you are trying to do ?
Enver Masud : What is OK?
Enver Masud : I got the message a few days after I replaced the black cartridge.
BRAY_Bidhubhusan : Enver, Whether the message 'Alignment failed ' displays on the product control panel?
Enver Masud : yes
BRAY_Bidhubhusan : Enver, I am going to provide you a link. Just follow the steps given in the page. I think this will resolve your issue.
BRAY_Bidhubhusan : http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01637692&cc=us&lc=en&dlc=en&product=3300221
BRAY_Bidhubhusan : Here is the link.
BRAY_Bidhubhusan : Enver Let me know are you comfortable to open the link ?
Enver Masud : I've already done this 3 times before contacting HP.
BRAY_Bidhubhusan : Enver, could you please tell me which Operating system you are using ?
Enver Masud : It's in the first line of this chat - Mac OS X 10.5.6
BRAY_Bidhubhusan : Okay.BRAY_Bidhubhusan : Enver, This was the best solution which I have given. Since you are using mac operating system.
BRAY_Bidhubhusan : I apologize for the inconvenience caused for you; we do not offer Chat support for the Macintosh operating system. However, we do offer e-mail and phone support. Please visit the Web site listed below for e-mail support.
http://h20180.www2.hp.com/apps/Nav?h_pagetype=email&h_lang=en&h_cc=us&h_product=236252&lc=en&cc=us
For phone support please call 1-800-474-6836. Business hours are Monday through Friday from 6:00 a.m. to 10:00 p.m. and Saturday from 9:00 a.m. to 4:00 p.m. Mountain Time.
NOTE: Out of warranty products may require a fee.

[One can read the above in about a minute, but online this exchange wasted about 30 minutes of my time. Given that I opened the chat with all needed information, HP support should have given me their final answer immediately.]