Received an HP officejet Pro 8715 printer with a system supply problem related to the magenta cartridge. This situation is a bit different because the machine was purchased in America, so it's ink is 952. The customer sourced some ink but this error came up upon installing. I have come across the problem a few times but strange enough the cause always seem to vary. Sometimes it could be solved by just changing the cartridge, other times it's the printhead and then it could be the mainboard. It's