Patent ID: 7933536

Claim:
An image forming device, comprising: a housing; a process cartridge detachably attached inside the housing, the process cartridge including an input portion; a door configured to open and close a space accommodating the process cartridge inside the housing; and a driving mechanism provided inside the housing to transmit an inputted driving force to the process cartridge through the input portion, the driving mechanism including: a drive shaft configured to shift along a center axis direction thereof, with respect to the housing, between a first state engaging with the input portion to transmit the driving force to the process cartridge and a second state spaced from the input portion to block transmission of the driving force; a first cam joined with the door to be rotated with respect to the housing in conjunction with movement of the door, the first cam including a first sliding surface; a translation member including a sliding contact portion which slidably contacts the first sliding surface, the translation member being configured to engage with the drive shaft and shift together with the drive shaft along the center axis direction with the sliding contact portion sliding on the first sliding surface in conjunction with rotation of the first cam; and a second cam including a second sliding surface which slidably contacts the sliding contact portion so as to face the first sliding surface through the sliding contact portion.