How to reset "Close the Finisher's Front Door". It occurred after a jam at the fixing unit, but already cleared of jams, checked all sensors along the path, including all sensors in the finisher, but still that error exists and unable to operate the machine. Any idea to fix, please help and thank you in advance.
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Re: ir4570 error not resetting
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In a few cases, connector J640 on the Accessary Power Supply was loose and refitting connector J640 removed the message.
With the faulty J640 connection, 24V was not supplied to the Finisher Controller and MSW1. The finisher front door closes the MSW1 circuit.
Other note;
The message Close the Finisher Front Cover is occurring. Microswitch MS1 ohms out good at J14 on the Finisher Controller pcb. 24 volts is not present at J14 but 24 volts checks good at J1 pin 3 on the Finisher Controller.
Solution :
In another case, fuse FU1 just below J14 on the finisher controller pcb was blown which interupted 24 vdc to the finisher front door microswitch (MS1).
The same service issue may occur if fuse FU6 (just to the left of J14) blows.
Before replacing the finisher controller pcb for blown fuses, check over the finisher for electrical shorts or physical binds which could cause the fuses on the finisher controller pcb to blow. Part number for the Finisher-S1 Controller pcb is 4G1-1478-060.
FU6 is located at the lower right side on the finisher controller PCB. It is just to the left of J17.
To check the fuse, open the finsher's front cover so you can access the PCB and close or activate the door interlock switch.
Power on the copier and check if the unit is in limited functions mode.
If it is go into Additional function > common settings > limited functions mode and set it to off.
Now set your meter to DC volts and attach the black lead to a good ground on the finisher frame.
With the red lead touch each end of FU6. A good fuse will read 24 volts DC on both sides of the fuse. A bad fuse will read 24 volts DC on only one side of the fuse.**Knowledge is time consuming, exhausting and costly for a trained Tech.**
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**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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