138 Responding to Error MessagesPAUSED The printer is off-line.Press Go to take the printer on-line.PRINTER OPEN The printer top cover is open.Close the printer top cover. Press Go to take the printer back on-line.PRINTING... Printing is in progress.You will see this message if you try to take the printer off-line by pressingGo during printing. This message is also displayed when you areprinting one of the internal demonstration or test pages. No actionrequired. Wait for printing to finish.READY Toner in the toner cartridge is low.TONER LOW Replace the toner cartridge as soon as possible (see page 118).The printer will continue to operate, but the image print quality willgradually deteriorate.KEY NOT VALID This message is displayed when a button that is not enabled in thecurrent function is pressed.Press the correct key to complete the current function (see page 12).WARMING UP... The printer is warming up.Wait until the printer has warmed up and displays READY.The top output bin is full.Remove the paper from the top tray.I/O INITIALIZING This massage is displayed when one of the network cards isestablishing a connection to the network.No action required.WRONG PAPER SIZE A paper size mismatch has occurred. More than one paper size hasbeen found in the same tray.Inspect the trays for mismatched paper and correct.An incompatible network card has been installed in the printer.Replace the card. If this error persists, call for service.PARALLEL The parallel port is not communicating with the controller.INTERFACE ERROR Restart the printer. If this error persists, call for service.The optional Ethernet card is not communicating with thecontroller.Replace the card.TOP BIN FULLETHERNETOPTION ERRORNETWORK OPTIONERROR
