• Code: 557
• Description: Zero cross frequency error
  When the zero cross signal is 66 or more and it is detected 10 times or more in 11 detections, the machine determines that input 60 Hz and SC557 occurs.
• Causes: • Noise (High frequency)

• Code: 559
• Description: Jam error detected 3 times in succession
  • The exit sensor and the duplex sensor detect a paper jam 3 times in succession • This condition can occur when SP 1159 1 is set to ‘on’. The default is ‘off’.
• Causes: Paper jams can occur for the following reasons. • Dampness • Paper curl • Incorrect paper setting in the paper tray • Stripper pawls coming apart

• Code: 590
• Description: Left exhaust fan motor error
  The CPU detects an exhaust fan lock signal for more than 5 seconds.
• Causes: • Loose connection of the exhaust fan motor • Too much load on the motor drive

• Code: 591
• Description: Rear exhaust fan motor error
  The CPU detects an exhaust fan lock signal for more than 5 seconds.
• Causes: • Loose connection of the exhaust fan motor • Too much load on the motor drive

• Code: 620
• Description: Communication error between BICU and ARDF
  The BICU does not receive a response from the ARDF main board for 4 seconds or more. The BICU receives a break signal from the ARDF main board.
• Causes: • Poor connection between the BICU and ARDF main board (DF connector) • ARDF main board defective • BICU defective

• Code: 621
• Description: ARDF connection error
  An incorrect ARDF (an ARDF for some other copier) is detected. (for Basic and GDI machines) An ARDF (including the correct ARDF) is installed while the copier is in the energy saver mode. (for GDI machine only)
• Causes: • ARDF incorrect (The other ARDF is installed on the D010.) • The connector of the ARDF is removed while the machine is in the energy saver mode.

• Code: 632
• Description: Accounting error
  An error is detected during the communication with the MF accounting device.
• Causes: • Accounting device defective • Loose connection

• Code: 634
• Description: Accounting RAM error
  An error is detected in the RAM that saves the information on the MF accounting.
• Causes: • Accounting device defective