• Code: E540-0004
• Description: Upper tray ascent/descent motor error (Finisher -Q3/ Q4)
  Safety switch activation
• Remedy: Check the No. 1 tray closed detecting switch. Replace the finisher controller PCB.

• Code: E540-8002
• Description: Stack tray motor error (Finisher-S1)
  The operation to detect the paper surface of the stack tray does not end within 1.0 sec.
• Remedy: Replace the finisher controller PCB. Replace the tray ascent/ descent motor. Check the stack tray drive mechanism. Check the paper surface sensor.

• Code: E540-8003
• Description: Stack tray motor error (Finisher-S1)
  An abnormal combination of sensor states has been detected.
• Remedy: Replace the finisher controller PCB. Check the stack tray upper limit sensor. Check the stack tray lower limit sensor. Check the stack tray upper paper surface sensor. Check the stack tray lower paper surface sensor.

• Code: E542-0002
• Description: Lower tray ascent/descent motor error (Finisher-Q3/ Q4
  Lower tray ascent/descent motor clock error
• Remedy: Replace the No. 2 tray shift motor. Replace the finisher controller PCB. Check the tray ascent/descent mechanism.

• Code: E542-0003
• Description: Lower tray ascent/descent motor error (Finisher-Q3/ Q4
  Area error
• Remedy: Replace the No. 2 tray shift area sensor PCB. Replace the finisher controller PCB.

• Code: E577-8001
• Description: Paddle error (Finisher-S1)
  The paddle home position sensor does not go on within 1.5 sec when the paddle is shifted to home position.
• Remedy: Check the paddle motor. Check the paddle home position sensor. Replace the finisher controller PCB.

• Code: E577-8002
• Description: Paddle error (Finisher-S1)
  The paddle home position sensor does not go off within 1.0 sec when the paddle is moved to home position.
• Remedy: Check the paddle motor. Check the paddle home position sensor. Replace the finisher controller PCB.

• Code: E584-0001
• Description: Shutter unit error (Finisher-Q3/ Q4)
  The shutter open sensor does not go off (i.e., the shutter does not close).
• Remedy: Check the stack edging motor. Check the open/ close clutch. Check the shutter home position sensor. Replace the finisher controller PCB.