Exposure apparatus and image forming apparatus

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 to either 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.