Abnormality detection apparatus and image forming apparatus

摘要

An abnormality detection apparatus includes a transfer output unit configured to output a voltage for image transfer and a voltage having a first value for detection of an internal resistance thereof, which is within a first range, an electrification output unit configured to electrify drums that are included in each of a plurality of color stations at a predetermined potential, a plurality of abnormality detection units configured to output a plurality of abnormality detection signals that indicate existence or nonexistence of abnormality in the color stations, a voltage value output unit configured to output a voltage having a second value that represents signal levels of the plurality of abnormality detection signals, the second value being within a second range different from the first range, and an output circuit configured to output a voltage having the first or second value through a signal line.

主权项

1. An abnormality detection apparatus, comprising:
a transfer output unit configured to output a voltage for image transfer and a voltage having a first voltage value for detection of an internal resistance thereof, the first voltage value being within a first voltage range; an electrification output unit configured to electrify drums that are included in each of a plurality of color stations at a predetermined potential; a plurality of abnormality detection units configured to output a plurality of abnormality detection signals that indicate existence or nonexistence of abnormality in the plurality of color stations; a voltage value output unit configured to output a voltage having a second voltage value that represents signal levels of the plurality of abnormality detection signals, the second voltage value being within a second voltage range different from the first voltage range; and an output circuit configured to output a voltage having the first voltage value or the second voltage value through a signal line.