• Code: C0410
• Description: Optional DP communication problem Communication fails five times successively.
• Causes: DP installed incorrectly. Defective main PWB or DP driver PWB.
• Remedy: DP installed incorrectly. Check the installation state of the DP and adjust it if it is not properly installed. Defective main PWB or DP driver PWB. Replace the main PWB or DP driver PWB and check for correct operation.

• Code: C0420
• Description: Optional first paper feeder communication problem Communication fails five times successively.
• Causes: Paper feeder installed incorrectly. Defective main PWB or drawer main PWB.
• Remedy: Paper feeder installed incorrectly. Check the installation state of the paper feeder and adjust it if it is not properly installed. Defective main PWB or drawer main PWB. Replace the main PWB or drawer main PWB and check for correct operation.

• Code: C0500
• Description: Optional second paper feeder communication problem Communication fails five times successively.
• Causes: Paper feeder installed incorrectly. Defective main PWB or drawer main PWB.
• Remedy: Paper feeder installed incorrectly. Check the installation state of the paper feeder and adjust it if it is not properly installed. Defective main PWB or drawer main PWB. Replace the main PWB or drawer main PWB and check for correct operation.

• Code: C0510
• Description: Optional third paper feeder communication problem Communication fails five times successively.
• Causes: Paper feeder installed incorrectly. Defective main PWB or drawer main PWB.
• Remedy: Paper feeder installed incorrectly. Check the installation state of the paper feeder and adjust it if it is not properly installed. Defective main PWB or drawer main PWB. Replace the main PWB or drawer main PWB and check for correct operation.

• Code: C0610
• Description: Bitmap (DIMM) problem There is a problem with the data or address bus of the bitmap DRAM.
• Causes: Defective main PWB. DIMM installed incorrectly. Defective DIMM.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation. DIMM installed incorrectly. Check if the DIMM is inserted into the socket on the main PWB correctly. Defective DIMM. Replace the DIMM and check for correct operation.

• Code: C0620
• Description: Memory input interface problem Reading-in of an image does not complete within 10 s of the start of image transmission.
• Causes: Defective main PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.

• Code: C0630
• Description: DMA problem DMA transmission of compressed, decompressed, rotated, relocated or blanked-out image data does not complete within the specified period of time.
• Causes: Defective main PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.

• Code: C0800
• Description: Image processing problem JAM05 is detected twice
• Causes: Defective engine PWB.
• Remedy: Defective engine PWB. Replace the engine PWB and check for correct operation.