The Service Life Of The Black Ink Cartridge Will Be Expired Soon. (Detected By The Black Ink Remaining Sensor); The Service Life Of The Yellow Ink Cartridge Will Be Expired Soon. (Detected By The Yellow Ink Remaining Sensor); The Service Life Of The Cyan Ink Cartridge Will Be Expired Soon. (Detected By The Cyan Ink Remaining Sensor); The Service Life Of The Magenta Ink Cartridge Will Be Expired Soon. (Detected By The Magenta Ink Remaining Sensor) - Brother DCPJ525W Service Manual