• Code: 442
• Description: Image transfer HVPS error: M An interrupt checks the status of the HVPS every 10 ms. This SC is issued if the BCU detects a short in the HVPS for K, M, C, or Y.
• Causes: • Transfer HVPS cable disconnected or damaged • Transfer HVPS defective
• Remedy: 1. Check the cables or cable connections of the transfer HVPS. 2. Replace the transfer HVPS.

• Code: 443
• Description: Image transfer HVPS error: Y An interrupt checks the status of the HVPS every 10 ms. This SC is issued if the BCU detects a short in the HVPS for K, M, C, or Y.
• Causes: • Transfer HVPS cable disconnected or damaged • Transfer HVPS defective
• Remedy: 1. Check the cables or cable connections of the transfer HVPS. 2. Replace the transfer HVPS.

• Code: 446
• Description: ITB black lift sensor error. The ITB black/color lift sensor does not detect an "OFF" signal for 884 ms after machine initializing or for 484 ms after job end. The ITB black/color lift sensor does not detect an "ON" signal for 484 ms after a print job has been processed.
• Causes: • Overload on the ITB black lift motor • Lift spring worn out • ITB black/color lift sensor defective
• Remedy: 1. Clear the overload on the ITB black/color lift motor. 2. Replace the ITB black/color lift sensor.

• Code: 447
• Description: ITB color lift sensor error. The ITB black/color lift sensor does not detect an "OFF" signal for 884 ms after machine initializing or for 484 ms after job end. The ITB black/color lift sensor does not detect an "ON" signal for 484 ms after a print job has been processed.
• Causes: • Overload on the ITB black lift motor • Lift spring worn out • ITB black/color lift sensor defective
• Remedy: 1. Clear the overload on the ITB black/color lift motor. 2. Replace the ITB black/color lift sensor.

• Code: 450
• Description: PTR HVPS output error An interrupt checks the status of the PTR HVPS every 10 ms. This SC is issued if the BCU detects a short in the PTR HVPS 10 times within 500 ms.
• Causes: • The output voltage from the PTR HVPS is leaking.
• Remedy: Replace the transfer HVPS.

• Code: 452
• Description: PTR HVPS: low voltage error The machine detects low voltage (0.1 V or less) from the PTR HVPS.
• Causes: • The resistant rate of the ITB bias roller decreases due to HH environment.
• Remedy: This SC does not affect the machine's operation. This is for analytical use only.

• Code: 453
• Description: ITB Bias Roller End. The machine detected an abnormal reading of the resistance of the ITB bias roller because it is near the end of its service life.
• Causes: • Check the connections to the transfer HVPS • Replace the image transfer roller • Transfer HVPS defective
• Remedy: 1. Replace the ITB bias roller. 2. Check the harness connection to the transfer HVPS. 3. Replace the transfer HVPS.

• Code: 456-001
• Description: Image Transfer Roller End: K (LLL) The machine detected an abnormal reading of the resistance of the image transfer roller for Black in LLL condition because it is near the end of its service life. LLL: Absolute humidity is 2.5 g/m3 or less.
• Causes: • Check the connections between the transfer HVPS and the roller. • Service life of image transfer roller for Black is near end. • Transfer HVPS defective
• Remedy: 1. Replace the image transfer roller for Black. 2. Check the connections between the transfer HVPS and the roller. 3. Replace the transfer HVPS.