Patent ID: 6191804
Filing Date: 2001-02-20
Classification: B41J

Abstract:
An image forming apparatus comprising:a plurality of light-emitting elements, each light-emitting element receiving a driving current form a power supply and converting the current into a beam;a plurality of driving elements, each driving element being electrically connected between the power supply and each light-emitting element and controlling the driving current for each light-emitting element based on an image signal; anda photoconductor on which the beams from the plurality of light-emitting elements form an image by scanning,wherein each light-emitting element is positioned adjacent to each driving element on a single printed circuit board such that a power leakage factor floating between the light-emitting element and the driving element is reduced, whereby an intensity of the beam is substantially equivalent to the image signal in waveform, andwherein each light-emitting element includes a laser diode mounted in a metallic package, an anode of the laser diode being connected to the metallic package.