• Code: 2F72
• Display: Hardware error. 03130031-2F72. Turn off printer, wait, then turn on again.
• Description: Indication at ink priming error in the right subtank.
• Remedy: For iPF6400 Series, 1. Replace the right subtank 2. Replace the main controller PCB.

• Code: 2F80
• Display: Spectrophotometer sensor is not mounted. Please check if the sensor is mounted properly and press OK.
• Description: Spectrophotometer sensor won't return signals.
• Remedy: 1. Install Spectrophotometer sensor. 2. Check cables. 3. Replace spectrophotometer sensor. 4. Replace the spectrophotometer unit PCB.

• Code: 2F81
• Display: Spectrophotometer Unit Calibration white tile error. Clean the tile then mount it and press OK.
• Description: After white calibration, the spectrophotometer sensor returned a value other than predetermined value.
• Remedy: 1. Clean white tile. 2. Mount white tile. 3. Replace spectrophotometer sensor.

• Code: 2F82
• Display: Delivery guide of SP unit is not mounted. Check if the guide is mounted properly and press OK.
• Description: While the spectrophotometer up-down unit upper detection sensor and spectrophotometer top cover open/closed detection sensor are detecting, the interlock switch remains OFF.
• Remedy: 1. Mount delivery guide. 2. Replace the spectrophotometer unit PCB. 3. Replace spectrophotometer updown unit upper detection sensor.

• Code: 2F83
• Display: Backing plate error in the spectrophotometer unit. Clean the backing plate. Install the backing plate to the unit. Then press [OK].
• Description: No signal retuned from backing plate. The signal from the backing plate is beyond threshold.
• Remedy: 1. Clean the backing plate. 2. Replace the spectrophotometer unit PCB. 3. Replace the spectrophotometer sensor.

• Code: 2F85
• Display: SP unit up and down cover is open. Close it and press OK
• Description: Spectrophotometer top cover open/closed detection sensor won't respond.
• Remedy: 1. Close spectrophotometer top cover. 2. Replace spectrophotometer top cover open/closed detection sensor. 3. Replace the spectrophotometer unit PCB.

• Code: 2F86
• Display: SP unit cover is open. Close it and then press OK.
• Description: Spectrophotometer cover open/closed detection sensorwon't respond.
• Remedy: 1. Close spectrophotometer cover. 2. Replace cover sensor. 3. Replace the spectrophotometer unit PCB.

• Code: 2F87
• Display: Colorimetric readout error. Please press OK and execute color measuring again.
• Description: When executing color measuring, the spectrophotometer sensor returned a value other than predetermined value was returned.
• Remedy: 1. Operate paper feed adjustment. 2. Change the patch size to large. 3. Printer support (In case of printing failure). 4. Replace spectrophotometer sensor