EP 3786715 A1 20210303 - PHOTOCONDUCTIVE DRUM, IMAGE FORMING APPARATUS, AND METHOD OF REGENERATING PHOTOCONDUCTIVE DRUM
Title (en)
PHOTOCONDUCTIVE DRUM, IMAGE FORMING APPARATUS, AND METHOD OF REGENERATING PHOTOCONDUCTIVE DRUM
Title (de)
PHOTOLEITENDE TROMMEL, BILDERZEUGUNGSGERÄT UND VERFAHREN ZUR REGENERIERUNG EINER PHOTOLEITFÄHIGEN TROMMEL
Title (fr)
TAMBOUR PHOTOCONDUCTEUR, APPAREIL DE FORMATION D'IMAGE ET PROCÉDÉ DE RÉGÉNÉRATION DE TAMBOUR PHOTOCONDUCTEUR
Publication
Application
Priority
JP 2019159469 A 20190902
Abstract (en)
A photoconductive drum (1) includes a sleeve member (2) having a hollow cylindrical shape, a photosensitive layer (3), and a protective layer (4). The photosensitive layer (3) and the protective layer (4) are sequentially laminated on an outer peripheral surface of the sleeve member (2). A surface of the protective layer (4) has an arithmetic mean roughness (Ra) of less than 0.03 µm at a cutoff value of 0.25 mm and an arithmetic mean waviness (Wa) of 0.05 µm or more at the cutoff value of 2.5 mm.
IPC 8 full level
G03G 15/00 (2006.01); G03G 5/00 (2006.01); G03G 5/147 (2006.01)
CPC (source: CN EP)
G03G 5/14 (2013.01 - EP); G03G 5/142 (2013.01 - EP); G03G 5/147 (2013.01 - CN EP); G03G 5/14704 (2013.01 - EP); G03G 15/751 (2013.01 - EP)
Citation (applicant)
Citation (search report)
- [IA] JP H04345167 A 19921201 - MATSUSHITA ELECTRIC IND CO LTD
- [IA] JP 2006301092 A 20061102 - CANON KK
- [IA] EP 1134619 A2 20010919 - CANON KK [JP]
- [A] JP 2011007969 A 20110113 - RICOH CO LTD
- [A] US 2010330475 A1 20101230 - TAMOTO NOZOMU [JP], et al
- [A] JP 2012078642 A 20120419 - RICOH CO LTD
- [A] EP 1243973 A1 20020925 - RICOH KK [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3786715 A1 20210303; CN 112445089 A 20210305; JP 2021039194 A 20210311; JP 7375385 B2 20231108
DOCDB simple family (application)
EP 20192894 A 20200826; CN 202010907883 A 20200902; JP 2019159469 A 20190902