ming apparatus shown in FIG. 1. [0031]FIGS. 5A and 5B are a side view and a front view, respectively, showing deformation preventing member loaded in the interior portion of the latent image carrier shown in FIG. 4. [0032]FIG. 6 is a front view showing a different example of the deformation preventing member shown in FIGS. 5A and 5B. [0033]FIGS. 7A and 7B are a side view and a front view, respecti