Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cheap HP printers Hidden TONER costs Revealed

Beware of HP CHEAP LASER PRINTERS. Specifically the CM1015 and 1017. HP laser printers are expiring the toner cartridges regardless of the actual toner used. I printed 8000 pages of pure Black and White with all color turned off in the driver. I had to replace $240 in color toner cartridges to use the printer even thought we printed NO color. Went to Cartridge world to have them opened, and sure enough they were completely full. If I would have know this, no way would I have purchased a CHEAP HP laser printer. I smell a class action in the making.