How's this for weird. I recently "refurbished" a C658 to go out on rental, the customer wanted an FNS, but we didn't have an FS536, only an FS534, I thought I'd give the FS534 a go, it didn't work, it didn't even recognise it had an FNS connected, the machine has been on site for about 6 weeks, the salesman asked me to retrieve an FNS from another customer and fit it to this machine. I retrieved the FNS, thinking in it was a FS536, when in fact it was a FS534, it worked, but I didn't realise it was the wrong finisher, until I updated the FW, and got an FNS FW error code, I took the finisher PCB back to the office, put it into another FS534 on a C308 and rewrote the FW, while it was in the workshop, I thought I'd try it on the C658, it didn't work, again, it didn't recognise it had an FNS connected....I took the rewritten PCB back to the customer, expecting the FNS not to work now, as it didn't work on the FNS connected to the C658 in the workshop.....I refitted the PCB to the FS534, reconnected it to the C658.....and it worked....explain that one....
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