Printer refused to use from (error message: "Cartridge defective")

The use of cartridges was (bought HP Officejet Pro 8620, 2/2015) from the printer already refused at the first onset, apparently because it was not genuine ink. Of course, this is primarily a problem that is caused by the purchase of original ink ink necessary policy of the manufacturer HP; But if you still Refill Cartridges sold as the company Cool toner and this as "100% compatible with the respective original and using the latest chip version" applies, this should work. This was not the case here. The support of Cool toner could not solve the problem; I therefore had to return the cartridges.