PRECISE PAPER REGISTRATION METHOD USING STEP MOTOR WITHOUT APPLYING MICRO-STEPPING TECHNOLOGY

摘要

PROBLEM TO BE SOLVED: To precisely register paper by using a step motor without applying a micro-stepping technology.;SOLUTION: A skew, that is, a paper registration error of a paper sheet moving in a paper feeding passage is detected. A coarse adjustment or copy paper registration, using full steps, is performed until the registration error is reduced to a minimum value, that is, below a full step. The frequency of one motor with respect to the other, or a reference, or reference motors, is adjusted in a fixed period, to enable a fine adjustment to correct the registration error.;COPYRIGHT: (C)2005,JPO&NCIPI