An image forming apparatus includes: an image supporting member; a charge
roller for charging the image supporting member; a gap setting member
disposed on the charge roller for setting a gap between the image
supporting member and the charge roller; and a pressing member disposed
at a position corresponding to the gap setting member for pressing the
charge roller against the image supporting member. Accordingly, it is
possible to form a constant gap between the charge roller and the image
supporting member, thereby consistently charging the image supporting
member.