I have a Panasonic 4520 that keeps giving the J61 code (Stapler not activated correctly). Tried switching out the staple unit and, when that didn't work, took another finisher that I know doesn't have any issues and I still get the code. So, the issue must lie with the machine itself. Any ideas on what the issue may be? I'm thinking it's a logic problem with one of the PCBs. I'm not terribly good at diagnosing PCB issues so if anybody has some advice, I'd appreciate it. Thanks in advance!
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