Hi @sastrasaya,
Thanks for your hunt. Sadly enough I can not approve it because printers are way too mainstream a product and this specific model does not jump out as a super innovative product either.
People have since years used alternative cartridge solutions which converted printers to use larger ink containers. As such the eco tank doth not make the printer cool enough to be approved on Steemhunt.
As per Steemhunt posting guidelines:
7. Post “Cool” Products
In Steemhunt, the coolness is decided by hunter’s upvotes. If many people think that a product is really cool, then the ranking is likely to be higher than other products. However, all products that are hunted in the first place should be somewhat cooler than other products. When a hunter decides to introduce the product to our community, it must not be a generic product. It should have some killer features that make people say “wow.” If your product is considered to be ordinary, the moderators may hide your hunt.