Buffer Pass Unit not rolling

[Print360]

With the machine ready open buffer door/lid does it bleep and tell you to close?

No. It doesn't respond to the buffer lid being opened/closed. I've been suspecting that for some reason it's not supplying power to the buffer pass.

[Print360]

check and see if the drive belt has fallen off, I recall seeing a tech pub on that recently.

If I remove the buffer pass completely, the main unit will still function, so I don't think it's a drive belt. The only connection to the actual buffer pass is a cable, and I'm starting to believe that it's not supplying power to the buffer anymore.

[teckat]

If I remove the buffer pass completely, the main unit will still function, so I don't think it's a drive belt. The only connection to the actual buffer pass is a cable, and I'm starting to believe that it's not supplying power to the buffer anymore.

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Simple checks,
did u check the Printer side cable connection for 24v output voltage supply to buffer end connection ????

DC pcb--J126 Pin 2-24v ---make sure the connector is in place on controller board
did u check the buffer connector cable (interior back end connection inside buffer unit)

DC PCB J126.jpg


Buffer G1_Power.jpg

[20 year tech]

If I remove the buffer pass completely, the main unit will still function, so I don't think it's a drive belt. The only connection to the actual buffer pass is a cable, and I'm starting to believe that it's not supplying power to the buffer anymore.

I meant the drive belt in the buffer pass itself. break out your meter and do the checks Teckat has suggested