Patent ID: 9333792
Filing Date: 2016-05-10
CPC Classification: B41J,B42C,B65H

Claim Text:
1. A method for monitoring printed data in a printing system, comprising the steps of: generating only one monitoring code for each respective page of a plurality of pages of a recording medium to be printed, said monitoring code consisting of only one monitoring number; also providing said monitoring numbers in a monitoring list but not in numeric succession, the monitoring numbers being repeatedly contained in the monitoring list so that a number of digits contained in the monitoring number is no more than three digits resulting in a reduction in size of the monitoring number on the respective page; printing only the one monitoring code on the respective page; monitoring the respective pages by comparing a sequence of the printed respective monitoring code monitoring numbers to a sequence of the monitoring numbers contained in said monitoring list and wherein a deviation in the compared sequences being used to identify an error for a page of the respective pages; if the error is identified for the page, identifying a maximum number of pages of said respective pages to be discarded based on monitoring numbers of preceding pages to the page of said respective pages included in at least one of said sequence of the printed respective monitoring code monitoring numbers and said sequence of the monitoring numbers contained in said monitoring list; the monitoring list being provided by a predetermined calculation method; the calculation method for calculation of the numbers of the monitoring list comprises a pseudo-random number generator; and the pseudo-random number generator comprising a linear feedback shift register which generates a number sequence such that every arbitrary sequence of n successive numbers only occurs once within an overall sequence of N numbers, and an overall length of the overall sequence of the N numbers is maximized to 2