Instruct: Classify an Amazon review into positive or negative sentiment.
Query: not reliable

This new toner worked fine until hitting about 30th page. Then it started coming out uneven, leaving a part of a page faintly printed and unreadable. It works again when I take out the toner, shake it and then put it back and use it. That's not what I want to do every time I print, tho. So I would not recommend this product.