I wish to use refilled hp cartridge type 35A.
Please tell me what are the implications with reason.

You save money?

What you do mean by implications?

Thanks Mr. F!
In fact there are few people around who refill the cartridge.

Implication means will it harm to my printer or only printing quality will be inferior..

What I have found from using refill cartridge on dozens of various printers.

1. Most refill do not contain as much ink, as the new ones.
2. I would sometimes get one that would not work, and none of the companies ever replaced them.
3. Never had an issue of quality and they worked just like the new ones.

Agree 100% with Fr_Chuck's experience.
Not worth it financially.

The implications are that

a) you could ruin your printer
b) you void the warranty

The experience I have seen reported is about 50/50. In half the cases people are happy with refilled cartridges. In the other half, they ruined their printers and had to replace them.

As noted, the refills never last as long, The quality of the ink is not as good and the potential for damage is greater.
The risk is not worth the reward in my opinion.

It cost me more to keep refilling the inks over a period, than it did if I had bought the recommended cartridges in the first place. It only takes one time to screw up, and leak all over everything, before you give up this easy cheap quick fix.

They sell do it yourself ink refill kits cheap too, everywhere, but those are no better. Ask me how I know!