Patent ID: 8279403

Claim:
An exposure apparatus attached to an image forming apparatus for forming a latent image on a photosensitive member by a light-emitting element that emits light based upon an input image signal and developing the latent image to thereby form an image, said exposure apparatus comprising: a first board on which a light-emitting element is mounted; a power source configured to supply the light-emitting element with current; and a driving circuit configured to selectively conduct current from said power source either to a first current path connected to the light-emitting element or to a second current path connected to a resistor different from the light-emitting element, wherein said driving circuit is a circuit which, based upon the input image signal, conducts current from said power source to the first current path in a case where the light-emitting element is made to emit light, and conducts current from said power source to the second current path in a case where the light-emitting element is not made to emit light; and a second board, different from said first board, on which said driving circuit is mounted, wherein the second current path conducts the current from the driving circuit to said first board, on which the light-emitting element is mounted, and is arranged so as to lie adjacent to the first current path.