EPSON PX-434 From purchase, it was working without any problems with printing, scanning, etc., but suddenly the black ink cartridge became unrecognizable. Scanning and cleaning functions cannot be performed until it is recognized. Therefore, it is listed as junk. I have purchased a new printer, so I haven't tested it with a new ink cartridge. Inserting a new cartridge might make it recognizable, but I cannot guarantee it, so please understand. Unused ink, yellow and cyan (blue), will be included. After a simple cleaning, it will be wrapped in bubble wrap and shipped. Thank you.