Global Patent Index - EP 2065757 A1

EP 2065757 A1 20090603 - Electrophotographic image forming method

Title (en)

Electrophotographic image forming method

Title (de)

Elektrofotografisches Bilderzeugungsverfahren

Title (fr)

Procédé de formation d'images électro-photographiques

Publication

EP 2065757 A1 20090603 (EN)

Application

EP 07121966 A 20071130

Priority

EP 07121966 A 20071130

Abstract (en)

An image forming method including electrostatic image forming step, developing step, transferring step, fixing step and oil application step for applying an oil to a fixing member, wherein the toner includes a binder resin, a colorant and a wax, and the relationship (A2/A1) x 100 < 200 is satisfied, wherein A1 represents the area of the oil dropped on a pellet of the toner measured 30 seconds after dropping the oil, and A2 represents the area of the dropped oil measured 24 hours after dropping the oil. Alternatively, the relationships (X1 - X2) < 0.5 atomic percent, X1 > 1.0 atomic percent, and X2 > 1.0 atomic percent, are satisfied, wherein X1 and X2 represent amounts of Si atoms of the silicone oil measured by subjecting the toner image to X-ray photoelectron spectroscopy at times 5 minutes and 24 hours, respectively, after fixing the toner image.

IPC 8 full level

G03G 9/087 (2006.01); G03G 11/00 (2006.01); G03G 15/00 (2006.01); G03G 15/20 (2006.01)

CPC (source: EP)

G03G 9/08755 (2013.01); G03G 9/08782 (2013.01); G03G 9/08795 (2013.01); G03G 11/00 (2013.01); G03G 15/2025 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 2065757 A1 20090603; EP 2065757 B1 20140430

DOCDB simple family (application)

EP 07121966 A 20071130