Patent ID: 6567175
Filing Date: 2003-05-20
Classification: G06F,G06K

Abstract:
A method for changing printer drivers in a computer-printer system, comprising the steps of:sending a print command to a printer to begin a print operation; periodically transmitting a response request signal to said printer; determining that an error has occurred when said printer fails to respond to said response request signal; checking whether said error corresponds to any one of a plurality of specific error types stored in a memory of a computer of said computer-printer system; stopping said print operation when said step of checking determines that said error does not correspond to any of said specific error types stored in said memory; changing from a printer driver initially set to control said printer to a second printer driver stored in said memory when said error corresponds to one of said specific error types corresponding to an abnormal operational state of said initially set printer driver; and setting up said second printer driver to control said printer and returning to said step of periodically transmitting said response request signal to said printer.