Patent ID: 6396529
Filing Date: 2002-05-28
Classification: G06K,H04N

Abstract:
An optical printer head comprising:a light source formed of luminous dot trains each including a plurality of luminous dots; a memory device configured to store correction information, said correction information being obtained by subjecting light amount emitted from each of said luminous dots to adjust so as to illuminate each of said luminous dots at a substantially same level; a control unit for processing said correction information supplied from said memory device; and an anode driver for driving each of said luminous dots based on control data from said control unit: wherein said correction information stored in said memory device is derived from the light amount of the luminous dots in an effective printing range of said luminous dot trains other than the luminous dots in an ineffective printing range of said luminous dot trains while omitting the luminous dots in said ineffective printing range from said light-amount correction, and each of said luminous dots in said effective printing range of said luminous dot trains are illuminated based on the correction information and each of said luminous dots in said ineffective printing range of said luminous dot trains are kept constantly luminous without adjusting the light amount so as to form a white frame on a record medium.