EP 1246027 A3 20021009 - Electrophotographic apparatus and method of detecting opening or closing of a cover of the apparatus
Title (en)
Electrophotographic apparatus and method of detecting opening or closing of a cover of the apparatus
Title (de)
Elektrophotographisches Gerät und Verfahren zur Detektion des Öffnens oder Schliessens eines Deckels des Gerätes
Title (fr)
Appareil électrophotographique et méthode de détection de l'ouverture et de la fermeture d'un couvercle de celui
Publication
Application
Priority
- JP 2001086611 A 20010326
- JP 2001175610 A 20010611
- JP 2002046268 A 20020222
Abstract (en)
[origin: EP1246027A2] A density detection value detected by the toner density detection sensor (23) before the door (20) is opened and a density detection value detected by the toner density detection sensor (23) after the door (20) is opened and closed are compared with each other, and determination is made on the basis of a difference between the detection values about whether or not the closed position of the door after the opening and closing operations of the door is in a regular closing position. Accordingly, since an incompletely closed state of the door is detected by the toner density detection sensor (23), various troubles due to the incompletely closed state of the door can be prevented from occurring. When the door has a reflecting plate a registration sensor can also be used.
IPC 1-7
IPC 8 full level
G03G 21/00 (2006.01); G03G 15/00 (2006.01); G03G 15/16 (2006.01); G03G 21/16 (2006.01)
CPC (source: EP)
G03G 15/5041 (2013.01); G03G 21/1633 (2013.01); G03G 2215/00042 (2013.01); G03G 2215/00544 (2013.01); G03G 2215/00721 (2013.01); G03G 2215/0078 (2013.01); G03G 2221/169 (2013.01)
Citation (search report)
- [A] US 6144811 A 20001107 - OHORI MAYUMI [JP], et al
- [A] EP 1014225 A2 20000628 - CANON KK [JP]
- [A] PATENT ABSTRACTS OF JAPAN vol. 013, no. 500 (M - 891) 10 November 1989 (1989-11-10)
- [A] PATENT ABSTRACTS OF JAPAN vol. 013, no. 517 (P - 962) 20 November 1989 (1989-11-20)
- [A] PATENT ABSTRACTS OF JAPAN vol. 014, no. 162 (P - 1029) 29 March 1990 (1990-03-29) & JP H11282223 A 19991015 - RICOH KK & JP 2661941 B2 19971008
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1246027 A2 20021002; EP 1246027 A3 20021009; EP 1246027 B1 20060104; DE 60208457 D1 20060330; DE 60208457 T2 20060824; DE 60208457 T8 20061228; JP 2003066776 A 20030305; JP 4107372 B2 20080625
DOCDB simple family (application)
EP 02006647 A 20020326; DE 60208457 T 20020326; JP 2002046268 A 20020222