Device for correcting non-linearity of scanner in image forming apparatus

摘要

A device for correcting the non-linearity of a scanner comprising: a reset pulse generator (300) for generating a reset pulse with a predetermined pulse width in synchronization with a scanning start signal generated in accordance with an input photosensitive belt sensing signal; an address generator such as a counter (310) for outputting an address by being reset by the reset pulse; a LUT look-up table (320) enabled by the scanning start signal, for receiving an address from the address generator and for outputting information corresponding to the address in the form of digital data; and a converter (330) for outputting a synchronizing signal with a frequency corresponding to the digital data from the LUT. <IMAGE>