Patent ID: 6354690
Filing Date: 2002-03-12
Classification: B41J

Abstract:
A timing pulse generator for generating timing pulse in association with movement of a moving member that is driven to move at a velocity along a prescribed transport path, the timing pulse generator comprising:a pulse generating circuit that generates pulse signals corresponding to the velocity of the moving member; a timer circuit that sequentially measures pulse periods between two succeedingly occurring pulse signals generated by said pulse generating circuit; a storage circuit that stores a previous pulse period previously measured by said timer circuit and a pulse period immediately before the previous pulse period measured by said timer circuit immediately before the measurement of the previous pulse period; a pulse period estimating circuit that estimates a pulse period corresponding to a current velocity of the moving member based on the previous pulse period and the pulse period immediately before the previous pulse period; and a timing pulse generating circuit that generates timing pulses based on the pulse period estimated by said pulse period estimating circuit in order to provide timings for executing prescribed operations with the moving member.