公开(公告)号：US20040184858A1

公开(公告)日：2004-09-23

申请号：US10809558

申请日：2004-03-24

申请人： Sony Corporation

发明人： Masahide Maruyama

IPC分类号： B41J002/00

CPC分类号： B65H16/06 ,  B41J15/02 ,  B65H16/005 ,  B65H26/066 ,  B65H63/086 ,  B65H75/10 ,  B65H75/182 ,  B65H2301/41522 ,  B65H2511/114 ,  B65H2801/12

摘要： The present invention relates to a roll-like printing paper, a video printer using such roll-like printing paper and a method of detecting a remaining quantity of a roll-like printing paper. More specifically, this invention relates to a roll-like printing paper in which a paper spool may include a detection portion for detecting a rotation of the paper spool and a rotation of the paper spool can be detected by this detection portion. Further, this invention relates to a video printer and a printing paper remaining quantity detection method in which the rotation of the paper spool of this roll-like printing paper may be detected and an alarm may be displayed if it is determined based on the detected paper spool rotation that the remaining quantity of the roll-like printing paper approaches to its end.