Code :

Code: 16-3
Description: Option Tray Unit Fail - Option Tray is not installed when Option Tray is selected.
Remedy:

Code: 16-4
Description: Full Stack (500 Paper Exit) - 500 Paper Exit became Full Stack.
Remedy: FIP1.45 Possible causative parts: SENSOR FULL STACK ACTUATOR FULL STACK HVPS/MCU 1 Checking ACTUATOR FULL STACK for operation Does ACTUATOR FULL STACK in paper feed out section move smoothly? With tool Go to step 2. Without tool Go to step3. Replace ACTUATOR FULL STACK. 2 Checking SENSOR FULL STACK for operation (1) Remove EP CARTRIDGE. Does the number of Sensor/Switch Check increase by one, every time pushing and releasing ACTUATOR FULL STACK? Checks by Chapter 2 Diagnostic [Sensor/Switch Check]. Go to step 3. Go to FIP2.46 SENSOR FULL STACK. 3 Checking SENSOR FULL STACK for operation (2) Replace SENSOR FULL STACK. Does the problem still occur, after replacing SENSOR FULL STACK? Replace HVPS/MCU. End of work

Code: 17-1
Description: Top/Rear Cover Open - COVER OPEN or COVER REAR 500 is open.
Remedy: FIP1.6 INTERLOCK S/W 24V INTERLOCK S/W 5V INTERLOCK S/W REAR SWITCH I/L ASSY COVER OPEN HVPS/MCU LVPS 1 Checking COVER OPEN and COVER REAR Are the tabs to push down INTERLOCK S/W 24V, 5V, and REAR, and SWITCH I/L ASSY damaged? Open COVER OPEN and COVER REAR to check. Replace COVER OPEN or COVER REAR. With tool Go to step 2. Without tool Go to FIP2.9,10,11, and 12 INTERLOCK S/W. 2 Checking INTERLOCK S/W 24V and 5V on function Does the number on Sensor/Switch Check increase by one, every time INTERLOCK S/W is pushed while pressing down the SWITCH I/L ASSY with a finger? Checks by Chapter 2 Diagnostic [Sensor/Switch Check]. Go to step 3. Go to FIP2.9 and 10 INTERLOCK S/W. 3 Checking INTERLOCK REAR on function Does the number on Sensor/Switch Check increase by one, every time INTERLOCK S/W REAR is pushed while pressing down the INTERLOCK S/W 24V with a finger? Checks by Chapter 2 Diagnostic [Sensor/Switch Check]. Go to step 4. Go to FIP2.11 INTERLOCK S/W. 4 Checking SWITCH I/L ASSY on function Does the number on Sensor/Switch Check increase by one, every time SWITCH I/L ASSY is pushed while pressing down both INTERLOCK S/W 24V and 5V with the finger? Checks by Chapter 2 Diagnostic [Sensor/Switch Check]. Replace HVPS/MCU. Go to FIP2.10 and 12 INTERLOCK S/W.

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