• Code: 559
• Description: Fusing paper jam errors Three consecutive paper jam errors occurred in the fusing unit. Note: This SC code is not issued unless SP1159 is switched on.
• Causes: • Paper jam in fusing unit • Pick-off pawl defective • Paper scraps in fusing unit • Exit sensor defective
• Remedy:

• Code: 561
• Description: Pressure roller end thermistor error 1 During the hot roller temperature control sequence, or while the hot roller and pressure roller were rotating, the end thermistor on the pressure roller returned a digital reading of more than 3.3V.
• Causes: • Pressure roller end thermistor not positioned properly • Pressure roller end thermistor connector loose, broken, defective • Pressure roller end thermistor defective • MCU defective
• Remedy:

• Code: 563
• Description: Pressure roller end thermistor error 2 During the hot roller temperature control sequence, the end thermistor on the pressure roller returned a digital reading of less than 0.2V.
• Causes: • Pressure roller end thermistor connector loose • Pressure roller end thermistor short circuit, defective • MCU defective
• Remedy:

• Code: 628
• Description: Fan fold unit communication error 1 The machine failed to detect within 100 ms a response to a data frame sent to the fan fold unit. Three consecutive retries failed, resulting in a timeout.
• Causes: • Cable harness between the main machine and fan fold unit broken or defective • Connector loose, disconnected, or defective
• Remedy:

• Code: 632
• Description: Key/card counter device error 1. After 1 data frame is sent to the device, an ACK signal is not received within 100 ms, and is not received after 3 retries.
• Causes: • Serial line from the device to the main machine is unstable, disconnected, or defective
• Remedy:

• Code: 633
• Description: Key/card counter device error 2 During communication with the device, the MCU received a break (Low) signal.
• Causes: • Serial line from the device to the main machine is unstable, disconnected, or defective
• Remedy:

• Code: 634
• Description: Key/card counter device error 3 The backup battery of the counter device RAM is low.
• Causes: • RAM backup battery exhausted • Counter device defective
• Remedy:

• Code: 635
• Description: Key/card counter device error 4 After installation of the device a message alerts user to a battery voltage abnormal error.
• Causes: • Device control board defective • Device control board backup battery defective
• Remedy: