• Code: SC747
• Description: Stapler Unit Saddle Stitch Motor Error 2
  The rear stapler unit saddle-stitch motor does not start operation within the specified time (450 ms).
• Causes: • Motor harness defective or connection loose • Motor defective • Finisher main controller board defective • Motor overload

• Code: SC750
• Description: Cover Interposer Tray Bottom Plate Motor Error
  One of the following events occurred: • After the motor starts to raise the bottom plate, the bottom plate position sensor does not detect the plate at the specified time (3 s). • After the motor starts to lower the bottom plate, the bottom plate HP sensor does not detect the bottom plate.
• Causes: • Bottom plate position sensor defective • Bottom plate HP sensor defective • Bottom plate lift motor defective • Cover interposer tray main board defective • Motor connectors loose or harness defective

• Code: SC800
• Description: Video Output Transmission End Error
  A video signal is sent to the engine but no command is received within the prescribed time from the engine to signal the end of transfer . output all black.
• Causes: • Controller defective

• Code: SC804
• Description: Video Input End Error
  Video transfer is requested from the scanner, but no command is received within the prescribed time from the scanner to signal a response, and output is all black.
• Causes: • Controller board defective

• Code: SC817
• Description: Monitor Error
  This is a file detection and electronic file signature check error when the boot loader attempts to read the self-diagnostic module, system kernel, or root system files from the OS Flash ROM, or the items on the SD card in the controller slot are false or corrupted.
• Causes: • OS Flash ROM data defective; change the controller firmware • SD card data defective; use another SD card • For example: Data in the self-diagnostic module, system kernel, or root system files are corrupted or do not exist in OS flash ROM or on the SD card Files in the self-diagnostic module, kernel, or root file system on the SD card have been falsified or altered NOTE: 1) Before discarding the SD card, try to update the data on the card. If the error occurs again, the card may be defective. 2) Be sure to use an SD card that contains the correct electronic signature.

• Code: SC818
• Description: Watch Dog Error
  While the system program is running, a bus hold or interrupt program goes into an endless loop, preventing any other programs from executing.
• Causes: • System program defective; switch off/on, or change the controller firmware if the problem cannot be solved • Controller board defective • Controller option malfunction

• Code: SC819
• Description: Fatal kernel error
  RAM overflow occurs during system processing. One of the following messages is displayed on the operation panel.
• Causes: • Controller board defective • Software defective; change the controller firmware

• Code: SC821
• Description: Self-Diagnostic Error 1: ASIC Not Detected
• Causes: • ASIC (Bassoon) defective • Poor connection between North Bridge and PCI I/F NOTE: Replace the controller board.