Patent ID: 8416382

Claim:
A processing apparatus including a processing unit configured to process an object, the processing apparatus comprising: a first conveying unit configured to convey the object between a transfer portion provided between an external apparatus and the processing unit, and the processing unit; a first controller configured to output a request signal requesting the external apparatus to convey the object to the transfer portion; and an output unit configured to output a signal indicating a start of maintenance of the processing apparatus, wherein the external apparatus includes a second conveying unit configured to convey the object to the transfer portion, a second controller configured to control the second conveying unit, and a power supply unit configured to supply power to the second conveying unit, and wherein the first controller is configured to output, to the power supply unit, a signal for cutting off power supply from the power supply unit to the second conveying unit, without intervention of the second controller, based on the signal indicating the start of maintenance output from the output unit, after outputting the request signal.