Table 37. Printer messages (continued) Control panel message Explanation Recommended action CHECK INPUT DEVICE alternates with PAPER PATH OPEN PLEASE CLOSE IT The optional input tray cannot feed print media to the printer because a door or paper guide is open. 1. Check the doors and paper guides and close any that are open. 2. If doors and trays are closed, check tabs and sensor levers in the tray for proper operation. Replace any defective tabs or sensors. 3. Replace the PCA controller in the feeder. CHECK OUTPUT DEVICE alternates with CLOSE OUTPUT DELIVERY PATH The optional output device is not properly connected to the printer. 1.
Ensure the optional output device is fully seated and properly installed. 2. Check any doors on the output device and verify they are closed. CHECKING PAPER PATH The engine is checking for possible jams or print media that was not cleared from the printer. Wait for the printer to finish checking (up to 30 seconds). CLOSE TOP COVER The top cover is open and must be closed for printing to continue. 1. Close the top cover. 2. If the message persists, check SW101 for proper operation. (See page 263 for the sensor location.) Make sure wires are connected. 3. Replace SW101. 4. If the new switch does not solve the error, the wiring or the engine controller board might be defective.
DISK DEVICE FAILURE The EIO disk had a critical failure or fatal error. 1. Reseat the EIO disk. 2. Remove the EIO disk and replace it with a new one. DISK FILE OPERATION FAILED The requested operation could not be performed (for example, attempting to download a file to a nonexistent directory). 1. Check the file name and the directory name. 2. Reseat the EIO disk. 3. Retry the operation. EN Chapter 7 Troubleshooting 195