Patent ID: 9372470
Filing Date: 2016-06-21
CPC Classification: G03G

Claim Text:
1. An apparatus attaching a detachable unit equipped with a unit side circuit including a fuse, comprising: first and second terminals; an electrical conductor placed around at least the second terminal; a hardware processor configured to: apply a first electrical current, which is insufficient to melt and blow the fuse, between the first terminal and the second terminal via the unit side circuit so that the first electrical current flows in the fuse; detect whether there is an abnormal circumstance at the connection between the apparatus and the unit side circuit, based on the electrical potential or electrical current at the second terminal when the first electrical current is applied; apply a second electrical current, which is sufficient to melt and blow the fuse, between the first terminal and the second terminal via the unit side circuit so that the second electrical current flows in the fuse when an abnormal circumstance of the connection is not detected; and provide information about the detected abnormal circumstance of the connection.