A printed material holding device includes a printed material tray for receiving printed material and a transmission mechanism. A first claw is disposed on the printed material tray. The transmission mechanism includes a mounting plate attached to a main body of a printer. A clipping hole is defined in the mounting plate. The first claw is configured to move between a first configuration, where the first claw is engaged in the clipping hole, so that printed material tray is secured to the mounting plate, and a second configuration, where the first claw is disengaged from the clipping hole, so that the printed material tray is withdrawn from the mounting plate.