Troubleshooting > 110Face Up Failure Error message displayed for Face-Up tray unitfailure.Fan Failure Error message displayed for Fan failure.File Error 26 Invalid format detected in the header of FirmwareDownload attempt.File Error 27 Bad checksum detected for one of the files includedin a Firmware Download attempt.File Error 29 Download Type Mismatch - Firmware Download Filerejected due to mismatch in one of the following:engine class, controller class, Download Formatclass.File Not Found Could not find a filter configuration file.Filter Error Syntax error in data stream filter control. Detail oferror on line 2.Firmware Upgrade Indicates “Firmware Upgrade” mode is active.Format Error Failure during attempted format of flash.Formatting Status display for file status.Fuser Failure Error message for Fuser failure.ID Mismatch Displayed for ID Mismatch on Drum/Tonercartridge.IncompatibleDuplexerIncompatible Duplex Option installed.Incompatible OCT Incompatible Offset Catch Tray option installed.Incompatible Tray 3 Incompatible Tray 3 Option installed.Incompatible Tray 4 Incompatible Tray 4 Option installed.Initializing Displayed during Power-on initialization.Insert Tray Recovery action displayed when tray needs to beinserted.Install/Reset Recovery message displayed for ROS failure.Load Paper Un-specific “Load Paper” prompt.Load Paper Tray 1 A user prompt that paper needs to be loaded inTray 1.Load Paper Tray 2 A user prompt that paper needs to be loaded inTray 2.Load Paper Tray 3 A user prompt that paper needs to be loaded inTray 3.Load Paper Tray 4 A user prompt that paper needs to be loaded inTray 4.Lower Switch Face Up Tray failure.Main Motor Fail Displayed for Main Motor failure.Maintenance Reqd Used for error/warning when Maintenance isrequired (replace fuser/rollers/etc). Press ON LINEto continue for 10k additional pages.Misfeed Jam Paper jam detected inside the printer.MESSAGE CONDITION/REASON/ACTION