Toner supply device for a developing apparatus
First Claim
1. A toner supply device for a developing apparatus on which a toner tank having a circular opening at one end for inserting a cylindrical toner cartridge is mounted, comprising:
- stop means provided on said toner tank adjacently to said circular opening and protruding into a toner cartridge insertion path defined in said toner tank to interfere with said toner cartridge being inserted, said stop means resiliently retracting from said toner cartridge insertion path when urged outward in a radial direction of said toner tank from inside of said toner tank; and
urging means provided on said toner cartridge adjacently to one end of said toner cartridge and having an inclined surface for, when said toner cartridge is inserted into said toner tank, engaging with said stop to urge said stop outward from the inside of said toner tank.
1 Assignment
0 Petitions
Accused Products
Abstract
A toner supply device for supplying a toner to a developing apparatus of an electrophotographic copier or similar image recorder is implemented by a cylindrical toner tank mounted on the apparatus and a toner cartridge filled with a toner and removably loaded in the toner tank. A hook-like yieldable stop is fitted on the toner tank, while lugs having contiguous inclined surface are provided on the toner cartridge for urging the stop when the cartridge is inserted into the tank. The stop and lugs allow only a toner cartridge of exclusive kind associated with the image recorder to be inserted into the toner tank.
-
Citations
8 Claims
-
1. A toner supply device for a developing apparatus on which a toner tank having a circular opening at one end for inserting a cylindrical toner cartridge is mounted, comprising:
-
stop means provided on said toner tank adjacently to said circular opening and protruding into a toner cartridge insertion path defined in said toner tank to interfere with said toner cartridge being inserted, said stop means resiliently retracting from said toner cartridge insertion path when urged outward in a radial direction of said toner tank from inside of said toner tank; and urging means provided on said toner cartridge adjacently to one end of said toner cartridge and having an inclined surface for, when said toner cartridge is inserted into said toner tank, engaging with said stop to urge said stop outward from the inside of said toner tank. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A toner cartridge for supplying a toner which is removably loaded in a cylindrical toner tank which has a circular openng at one end, comprising:
-
a casing closed at both axial ends and provided with a slot for supplying the toner; a first lug provided on said casing adjacently to one of said axial ends of said casing and in alignment with said slot in an axial direction of said casing, said first lug having a first inclined surface; and a second lug provided on said one end of said casing and having a second inclined surface which is contiguous with said first inclined surface. - View Dependent Claims (8)
-
Specification