Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. The invention describes a catalyst body with a multiplicity of first longitudinal passages, which also contains second longitudinal passages. The memory rewrite unit outputs a rewrite signal, a command signal group including a command for activating the boot program, and an erasure command signal for erasing a diagnostic code. The bottom of the airbag has three bolt insertion holes through which the stud bolts are passed.