DRY TONER

Japanese Patent JP3884889

B2

PROBLEM TO BE SOLVED: To provide a dry toner with which high image quality can be stably obtained even when the toner is used in a low humidity or high humidity environment and image defects are not produced with time or when the toner is left to stand.
SOLUTION: The toner contains at least a binder resin, a coloring agent, a release agent and an organic metal compound. The mol.wt. distribution of the toner measured by GPC shows at least one peak in the region of 3×103 to 3×104 mol.wt. and moreover, at least one peak in the region of 1×105 to 5×106. The organic metal compound is an aluminum compound of benzilic acid expressed by formula (1) without substituted or having substituents. In the formula, R1 and R2 may be same or different and each represents a substituent selected from a group of straight-chain or branched alkyl groups, alkenyl groups, alkoxy groups, halogen atoms, nitro groups, cyano groups, amino groups, carboxyl groups and hydroxyl groups, and each of m and n is an integer 0 to 5.

JP2003066684	IMAGE FORMING DEVICE
JP6572701	Toner polyester resin, toner polyester resin manufacturing method, toner material, and toner
JPH0680681	PHOSPHONIUM COMPOUND AND ELECTROPHOTOGRAPHIC TONER USING THE SAME

Katsuhisa Yamazaki
Nobuyuki Okubo
Tsutomu Onuma
Yoshihiro Ogawa
Nakanishi Tsuneo
Kaori Hiratsuka

JP28422299A

February 21, 2007

October 05, 1999

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Canon Inc

G03G9/097; G03G9/08; G03G9/083; G03G9/087; (IPC1-7): G03G9/097; G03G9/083; G03G9/087; G03G9/08

JP11237767A
JP7306545A
JP10003179A
JP2221967A
JP5257324A
JP5107800A
JP5127426A
JP8171230A
JP9127720A
JP10048870A
JP10048871A

EP0905569A1

Keisuke Watanabe

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