arrow on the toner cartridge points to the blue arrow on the printer. The arrow on the right (control panel side of the printer) should point straight down. 86 Printer maintenance C7085-90921 1 Replacing the toner cartridges Replace the toner cartridge when the control panel displays: TONER CMYK OUT. The display can indicate that one or more toner colors are out. 1 With the printer turned on and warmed up, push the dark gray release button on the side of the printer ([1]) and open the 2 3