Image forming apparatus comprising determination processing portion for detecting property information of photoconductor

An image forming apparatus comprising:

• a photoconductor unit including a photoconductor;
• a charging portion configured to charge the photoconductor;
• an apparatus main body configured to detachably support the photoconductor unit;
• a first electric pathway configured to connect the charging portion and a power supply unit;
• a second electric pathway formed in the photoconductor unit and configured to connect the first electric pathway and the photoconductor;
• an electrical component disposed on the second electric pathway and having a predetermined electrical property in accordance with a type of the photoconductor unit;
• a voltage control portion configured to apply a preset detection voltage on the first electric pathway from the power supply unit;
• a current detection portion configured to detect current flowing through the second electric pathway when the detection voltage is applied on the first electric pathway;
• a determination processing portion configured to determine the type of the photoconductor unit and existence of usage of the photoconductor unit, based on a current value detected by the current detection portion;
• and
• a blocking portion configured to block the second electric pathway after determination by the determination processing portion.