| 20110076034 | IDENTIFYING MACHINE, IMAGE FORMING APPARATUS, AND ROLLER IDENTIFYING METHOD - An image forming apparatus includes a roller that should be identified, an indicator configured to rotate together with the roller, a sensor configured to come into contact with the indicator and read plural steps of the indicator, a storage configured to store an identification code, and a controller configured to compare the identification code read out from the storage and an output of the sensor. | 03-31-2011 |
