• Code: E540 8001
• Description: a. Tray Shift Motor error b. Tray 1 timeout error. a. The Stack Tray Paper Height Sensor was not turned ON although 5 seconds had passed after the Tray Shift Motor operation started. b. The tray does not return to its home position although the Tray 1 Shift Motor has been driven for 25 seconds. • The tray does not move to the other area although the Tray 1 Shift Motor has been driven for 5 seconds.
• Remedy: a. INNER FIN-G1 [Related parts] • Harnesses and connectors from the Finisher Controller PCB to the Stack Tray Paper Height Sensor • Harnesses and connectors from the Finisher Controller PCB to the Tray Shift Motor • Stack Tray Paper Height Sensor (PS9) • Tray Shift Motor (M6) • Finisher Controller PCB (PCB1) b. STAPLE FIN-U1/BOOKLET FIN-U1 [Related parts] • Harnesses and connectors from the Finisher Controller PCB to the Tray 1 Paper Surface Sensor • Harnesses and connectors from the Finisher Controller PCB to the Tray 1 Shift Area Sensor PCB • Harnesses and connectors from the Finisher Controller PCB to the Tray 1 Shift Motor • Tray 1 drive mechanism • Tray 1 Paper Surface Sensor (PI114) • Tray 1 Shift Area Sensor PCB (PCB4) • Tray 1 Shift Motor (M107) • Finisher Controller PCB (PCB1) [Remedy] Check/replace the corresponding harnesses/cables or connectors or the parts. [Reference] When replacing the Finisher Controller PCB, refer to "Adjustment> Adjustment when Replacing the Parts" in the Service Manual.

• Code: E540 8002
• Description: a. Tray Shift Motor error b. Tray 1 shift area error. a. The Front Alignment Plate HP Sensor was not turned OFF or the Stack Tray Lower Limit Sensor was not turned ON although 3.5 seconds had passed after the Front Alignment Motor operation started in the tray down operation. • The Front Alignment Plate HP Sensor was not turned OFF after the tray was moved down in the paper level detection operation. b. The tray exceeded the upper/lower limit before the Tray 1 Paper Surface Sensor detects the paper surface during the paper surface detection operation. • A non-contiguous area was detected during the tray shift operation.
• Remedy: a. INNER FIN-G1 [Related parts] • Harnesses and connectors from the Finisher Controller PCB to the Stack Tray Paper Height Sensor • Harnesses and connectors from the Finisher Controller PCB to the Tray Shift Motor • Stack Tray Paper Height Sensor (PS9) • Tray Shift Motor (M6) • Finisher Controller PCB (PCB1) b. STAPLE FIN-U1/BOOKLET FIN-U1 [Related parts] • Harnesses and connectors from the Finisher Controller PCB to the Tray 1 Paper Surface Sensor • Harnesses and connectors from the Finisher Controller PCB to the Tray 1 Shift Area Sensor PCB • Harnesses and connectors from the Finisher Controller PCB to the Tray 1 Shift Motor • Tray 1 drive mechanism • Tray 1 Paper Surface Sensor (PI114) • Tray 1 Shift Area Sensor PCB (PCB4) • Tray 1 Shift Motor (M107) • Finisher Controller PCB (PCB1) [Remedy] Check/replace the corresponding harnesses/cables or connectors or the parts. [Reference] When replacing the Finisher Controller PCB, refer to "Adjustment> Adjustment when Replacing the Parts" in the Service Manual.

• Code: E540 8003
• Description: Safety switch ON error. The Swing Guide Safety Switch or Tray 1 Safety Switch was turned ON during the tray shift operation.
• Remedy: STAPLE FIN-U1/BOOKLET FIN-U1 [Related parts] • Harnesses and connectors from the Finisher Controller PCB to the Tray 1 Paper Surface Sensor • Harnesses and connectors from the Finisher Controller PCB to the Tray 1 Shift Area Sensor • Harnesses and connectors from the Finisher Controller PCB to the Tray 1 Shift Motor • Tray 1 drive mechanism • Tray 1 Paper Surface Sensor (PI114) • Tray 1 Shift Area Sensor (PCB4) • Tray 1 Shift Motor (M107) • Finisher Controller PCB (PCB1) [Remedy] Check/replace the corresponding harnesses/cables or connectors or the parts. [Reference] When replacing the Finisher Controller PCB, refer to "Adjustment> Adjustment when Replacing the Parts" in the Service Manual.

• Code: E542 8001
• Description: Tray 2 timeout error. • The tray does not return to its home position although the Tray 2 Shift Motor has been driven for 25 seconds. • The tray does not move to the other areas although the Tray 2 Shift Motor has been driven for 5 seconds.
• Remedy: STAPLE FIN-U1/BOOKLET FIN-U1 [Related parts] • Harnesses and connectors from the Finisher Controller PCB to the Tray 2 Paper Surface Sensor 1 • Harnesses and connectors from the Finisher Controller PCB to the Tray 2 Paper Surface Sensor 2 • Harnesses and connectors from the Finisher Controller PCB to the Tray 2 Shift Area Sensor • Harnesses and connectors from the Finisher Controller PCB to the Tray 2 Shift Motor • Tray 2 drive mechanism • Tray 2 Paper Surface Sensor 1 (PI115) • Tray 2 Paper Surface Sensor 2 (PI120) • Tray 2 Shift Area Sensor (PCB5) • Tray 2 Shift Motor (M108) • Finisher Controller PCB (PCB1) [Remedy] Check/replace the corresponding harnesses/cables or connectors or the parts. [Reference] When replacing the Finisher Controller PCB, refer to "Adjustment> Adjustment when Replacing the Parts" in the Service Manual.

• Code: E542 8002
• Description: Tray 2 shift area error. • The tray exceeded the upper or lower limit before the Tray 2 Paper Surface Sensor 1 detects the paper surface during the paper surface detection operation. • A non-contiguous area was detected during the tray shift operation. • The tray reached the area that passed through Tray 2 Paper Surface Sensor 2 before the Tray 2 Paper Surface Sensor 2 detects the paper surface during the tray escape operation.
• Remedy: STAPLE FIN-U1/BOOKLET FIN-U1 [Related parts] • Harnesses and connectors from the Finisher Controller PCB to the Tray 2 Paper Surface Sensor 1 • Harnesses and connectors from the Finisher Controller PCB to the Tray 2 Paper Surface Sensor 2 • Harnesses and connectors from the Finisher Controller PCB to the Tray 2 Shift Area Sensor • Harnesses and connectors from the Finisher Controller PCB to the Tray 2 Shift Motor • Tray 2 drive mechanism • Tray 2 Paper Surface Sensor 1 (PI115) • Tray 2 Paper Surface Sensor 2 (PI120) • Tray 2 Shift Area Sensor (PCB5) • Tray 2 Shift Motor (M108) • Finisher Controller PCB (PCB1) [Remedy] Check/replace the corresponding harnesses/cables or connectors or the parts. [Reference] When replacing the Finisher Controller PCB, refer to "Adjustment> Adjustment when Replacing the Parts" in the Service Manual.

• Code: E551 0001
• Description: Buffer Pass Power Supply Cooling Fan error. The fan lock signal is detected 1.2 seconds or more while the fan operates.
• Remedy: STAPLE FIN-U1/BOOKLET FIN-U1 [Related parts] • Harnesses and connectors from the Buffer Pass Controller PCB to the Buffer Pass Power Supply Cooling Fan • Buffer Pass Power Supply Cooling Fan (FM201) • Buffer Pass Controller PCB (PCB201) [Remedy] Check/replace the corresponding harnesses/cables or connectors or the parts.

• Code: E551 0002
• Description: Buffer Pass Power Supply Cooling Fan error. The fan lock signal is released when the fan stops.
• Remedy: STAPLE FIN-U1/BOOKLET FIN-U1 [Related parts] • Harnesses and connectors from the Buffer Pass Controller PCB to the Buffer Pass Power Supply Cooling Fan • Buffer Pass Power Supply Cooling Fan (FM201) • Buffer Pass Controller PCB (PCB201) [Remedy] Check/replace the corresponding harnesses/cables or connectors or the parts.

• Code: E551 0003
• Description: Buffer Pass Cooling Fan error. The fan lock signal is detected 1.2 seconds or more while the fan operates.
• Remedy: STAPLE FIN-U1/BOOKLET FIN-U1 [Related parts] • Harnesses and connectors from the Buffer Pass Controller PCB to the Buffer Pass Cooling Fan • Buffer Pass Cooling Fan (FM202) • Buffer Pass Controller PCB (PCB201) [Remedy] Check/replace the corresponding harnesses/cables or connectors or the parts.