Change CartridgeInvalid RefillRemove the indicated toner cartridge andinstall a new one.See also: Replacing the toner cartridgeCheck ConnectionThe specified device is either notfully connected to the printer or isexperiencing a hardware failure. means:Tray x with x being trays 2 –5DuplexReestablish communication by removingthe specified device and reattaching itto the printer.Press Go to clear the message andcontinue printing.In the case of a hardware failure, turnthe printer off and back on. If the errorrecurs, turn the printer off, remove thespecified device, and call for service.Close Door orInsert CartridgeThe upper front door is open or thetoner cartridge is not installed.Close the upper front door.Install the toner cartridge.Delete All JobsGo/Stop?The printer is requestingconfirmation to delete all held jobs.Press Go to continue. The printerdeletes all held jobs.Press Stop to cancel the operation.Deleting Jobs The printer is deleting one or moreheld jobs.Wait for the message to clear.Disabling Menus The printer is responding to arequest to disable the menus.Wait for the message to clear.NOTE: While the menus are disabled, youcannot change the printer settings from theoperator panel.See also: Disabling operator panel menusEnabling Menus The printer is responding to arequest to make the menusavailable to all users.Wait for the message to clear, then pressMenu to view the menus from the operatorpanel.See also: Enabling menusEnter PIN:=___The printer is waiting for you toenter your four-digit personalidentification number (PIN).Use the operator panel buttons to enter thePIN you identified in the driver when you sentthe confidential job to the printer.See also: Confidential jobsFlushing Buffer The printer is flushing corruptedprint data and discarding thecurrent print job.Wait for the message to clear.Held Jobs may belostThe printer memory is too full tocontinue processing print jobs.Press Go to clear the message andcontinue printing. The printer freesmemory by deleting the oldest held joband continues deleting held jobs untilthere is enough printer memory toprocess the job.Press Stop to clear the messagewithout deleting any held jobs. Thecurrent job may not print correctly.Press Menu to open the Job Menu and