Image forming apparatus and image forming system

An image forming apparatus comprising:

• an image bearing member;
• a process member configured to act on the image bearing member;
• a voltage application unit configured to apply a voltage to the process member;
• a current detection unit configured to detect an electric current that flows to the image bearing member;
• and
• a control unit configured to cause the voltage application unit to apply voltages respectively having positive and negative polarities to the process member, and to determine whether a surface of the image bearing member has an abnormality based on a detection result acquired by the current detection unit.

An image forming system comprising:

• an image forming apparatus;
• and
• a computer connected to the image forming apparatus,
• wherein the image forming apparatus comprises:
• an image bearing member;
• a process member configured to act on the image bearing member;
• a voltage application unit configured to apply a voltage to the process member;
• a current detection unit configured to detect an electric current that flows to the image bearing member;
• and
• a control unit configured to cause the voltage application unit to apply voltages respectively having positive and negative polarities to the process member, and to output information about a detection result acquired by the current detection unit to the computer,
• wherein the computer determines a usage state of the image bearing member based on the result output from the control unit.