A battery module includes a battery assembly having a plurality of unit batteries. A housing portion housing the removed fixation members or connection members is provided to at least one of the paper feed trays. Analyte cations are then subsequently transmitted through the ion-ion reaction cell by a subsequent transient DC voltage wave. Moving the first light reflection device along the beam of first light or second light can adjust the location of the image on the screen in a first direction. At least some portion of the identified set of representative digital images from the group is then used to create an animated image.