• Code: J7-2
• Description: Drum CRUM Market Identity Mismatch. The AIOC PWB has detected that the Drum CRUM destination does not match.
• Remedy: • Turn the power OFF then ON. • Replace the Drum Cartridge (PL 4.1) .

• Code: J7-3
• Description: Drum CRUM ID error. • The AIOC PWB has detected that the Drum CRUM ID is incorrect.
• Remedy: • Turn the power OFF then ON. • Replace the Drum Cartridge (PL 4.1) .

• Code: L9-0
• Description: Copy Counter Full. The user that is logged in has reached the allotted copy limit in the Account Mode.
• Remedy: Press the [Stop] button on the Control Panel.

• Code: N1-1
• Description: EPC Memory Full. • During a copy job in Collate Mode, the EPC memory is full. • Or, the machine has reached a state where it is unable to scan in any more documents.
• Remedy: Press the [Stop] button on the Control Panel.

• Code: N4-0
• Description: Name No Response from USB-Host. • Either "USB disconnected" or "Communication timed-out" is detected during a print job. • Or, either "USB disconnected" or "Communication timed-out" is detected during a scan job.
• Remedy: • Cancel the print job. • Reconnect the USB cable correctly.

• Code: N4-1
• Description: HBPL or XPJL Syntax Error. An abnormal command that cannot be ignored is received from the USB-Host during a print job.
• Remedy: • Cancel the print job. • Reconnect the USB cable correctly.

• Code: N4-2
• Description: Download File Error. There is an abnormal Product ID or there is a checksum error in the download file.
• Remedy: Press the [Stop] button on the Control Panel.

• Code: N4-3
• Description: Download Flash Write Error. Unable to write the downloaded file into flash memory.
• Remedy: Press the [Stop] button on the Control Panel.