- 122 -Replacing Print Cartridges5 Maintenance●● Replacing Print CartridgesIf the B721/B731 is UsedLife Span of a Print CartridgeWhen the [Print Cartridge Near Life] messageis displayed on the display screen of the operatorpanel, prepare a replacement print cartridge.You can keep printing approximately 250 sheetsuntil the next message is displayed.When [Print Cartridge Life] is displayed andprinting is stopped, replace the print cartridge.Note● The actual life of the print cartridge differs depending onthe usage.Replacement Procedure1 Prepare a new print cartridge.2 Insert your finger into the recess onthe right side of the printer and pull thefront cover open lever (1) to open thefront cover (2) forward.Note● Open the front cover gently. If you open it rapidly,the MP Tray may open.123 Remove the print cartridge (3).Note● When toner powder adheres to the paper feedingarea inside the printer, wipe it off with a wet cloththat has been well wrung.34 Take out the new print cartridge from itsbag and remove the desiccant attachedto it.5 Place a new print cartridge (4) into theprinter.4
