A driver chip for use in an LED or other multi-element recording printhead includes a plurality of current driver channels. Data for determining recording durations for each of the current driver channels is provided on a data bus. A token bit is shifted through a shift register in association with image...http://www.google.com/patents/US5926201?utm_source=gb-gplus-sharePatent US5926201 - Driver IC configurable for recording in multiple resolutions printhead including the driver IC and method of operating the printhead