Remedy: Upper Roll Deck 1 Is the Upper Roll Deck opened? Yes Close it. Micro Switch (MS5A) 2 Select the Input / Output Checking Mode, and check the function of next item. 1. Deck Switch 1 (Signal Code is “23”.) Is the status “L” when the Upper Roll Deck is closed? And is it “H” when the Upper Roll Deck is opened? No 1. Check the wire of Micro Switch. 2. If the wire has no problem, replace the Micro Switch with the new one.
Code: U-02
Description: Lower Roll Deck Open Error
Causes: The Lower Roll Deck is opened.
Remedy: Lower Roll Deck 1 Is the Lower Roll Deck opened? Yes Close it. Micro Switch (MS5B) 2 Select the Input / Output Checking Mode, and check the function of next item. 1. Deck Switch 2 (Signal Code is “24”.) Is the status “L” when the Lower Roll Deck is closed? And is it “H” when the Lower Roll Deck is opened? No 1. Check the wire of Micro Switch. 2. If the wire has no problem, replace the Micro Switch with the new one. Service Mode Setting “4-32” 3 Check the value of Service Mode “4-32”. In case Lower Deck is removed, MS5B stays always “H”. Set it “02” not “04”.
Code: U-05
Description: Lever / Toner Cover Open Error
Causes: 1. The Lever is released. 2. The Toner Cover is opened.
Remedy: Lever 1 Is the Lever released? Yes Close it firmly. Toner Cover 2 Is the Toner Cover opened? Yes Close it. Micro Switches (MS1, MS2A and MS2B) 3 Check the voltage at J106-7 on the AC Terminal PCB (PW6610) with a multi-meter. (Check switches in the order as MS2A, MS2B and MS1.) Is it 24Vdc? No Replace the defective switch with the new one. AC Terminal PCB (PW6610) 4 Check the voltage at J105-8 on the AC Terminal PCB (PW6610) with a multi-meter. (Service Mode 1-22(INTLK3)) Is it 0Vdc? No Replace the AC Terminal PCB with the new one. DC Controller PCB (PW9620) 5 Check the voltage at J205-6 on the DC Controller PCB (PW9620) with a multi-meter. (Service Mode 1-22(INTLK3)) Is it 0Vdc? No Replace the DC Controller PCB with the new one. Wires 6 Check the wires between AC Terminal PCB and DC Controller PCB. Are wires connected properly? No Connect the wires properly Yes Replace the DC Controller PCB with the new one.
Code: U-06
Description: Exit Cover Open Error
Causes: Exit Cover is opened.
Remedy: Exit Cover 1 Is the Exit Cover opened? Yes Close it. Micro Switches (MS3A and MS3B) 2 Check the voltage at J106-4 on the AC Terminal PCB (PW6610) with a multi-meter. (Check switches in the order as MS3A and MS3B.) Is it 24Vdc? No Replace the defective switch with the new one. AC Terminal PCB (PW6610) 3 Check the voltage at J105-7 on the AC Terminal PCB (PW6610) with a multi-meter. Is it 0Vdc? No Replace the AC Terminal PCB with the new one. Wires 4 Check the wires between AC Terminal PCB and DC Controller PCB. Are wires connected properly? No Connect the wires properly Yes Replace the DC Controller PCB with the new one.