I cannot cancel anything, we're all independent techs working here on our own personal time in a good faith effort to help you.
If you need more information, I'd be happy to assist further. Otherwise, I do apologize again for the news. The information I provided above is a normal and inevitable hardware failure that HP printers experience when they reach the end of their designed service lives. Had you taken it in to a repair shop, they'd charge you a minimum of a $100 diagnostic fee for the exact same answer.
If looking for a replacement, I’d recommend any of the Epson workforce series printers. They tend to be very reliable, are easy to set up and use, have good print quality, and reasonably priced ink. Example: http://amzn.to/2iDSGsO or http://amzn.to/2hQLirU
Note that these, like all consumer grade inkjet printers, are designed to be low cost and are essentially disposable after a few years, subsidized by the high cost of ink cartridges. If you wish to have a better quality and longer lasting printer, that comes with years worth of ink up front, consider the Epson ecotank models instead: http://amzn.to/1PpOj0C
Alternately, for a more business/commercial grade product that will be rated for a 5 year life, consider a laser printer. Lasers cost more up front also, but a toner cartridge can last for thousands of pages. A black only all in one laser is around $125: http://amzn.to/2fdn5PG
while a color model is about twice that: http://amzn.to/1n4I7Q5
I am an independent technician and I've spent my personal time, unpaid, in an effort to assist with the question for which you solicited my services. This site works on the honor system, and to that end, I have prioritized working with you ahead of other paying customers.
Although you’ve already paid your fee to the site, I am only compensated for my efforts when customers such as yourself leave positive feedback for my work. I apologize this is not the outcome you had hoped for, though this is really beyond either of our control. I do hope you’ll consider leaving a 5 star rating for me, rather than “shoot the messenger”, so that I may get credit for my time spent in good faith to answer your question accurately. Rating 1 or 2, or not rating at all, does not produce a refund, it only penalizes me for trying to help. Similarly, asking for a refund of the service fees you agreed to has the effect of forcing me to work for free for my time spent advising you.