Patent ID: 8259353

Claim:
An image forming apparatus comprising: a first cleaning unit which is configured to collect a particle deposited on an object; an applying unit which is configured to apply a voltage to the first cleaning unit; a first detector which is configured to detect a first current flowing between the first cleaning unit and the object; a warning unit which is configured to issue a warning; and a controller which is configured to control the applying unit, wherein when the detected first current becomes equal to or greater than a first predetermined value, the controller controls the applying unit to reduce the voltage applied to the first cleaning unit so as to make the first current smaller than the first predetermined value, wherein the applying unit adjusts the voltage applied to the first cleaning unit based on a first target voltage, wherein the controller changes the first target voltage to control the applying unit based on the detected first current, and wherein the warning unit issues the warning when the first target voltage is smaller than a threshold value.