Toner for non-magnetic one-component development and method for

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

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430120, G03G 9097

Patent

active

056143486

ABSTRACT:
The present invention provides a toner 1 for non-magnetic one-components developments to be used for a method for non-magnetic one-component contact type development, wherein an apparent density is not less than 0.32 g/cc and when supplying to a developing roller 2 immediately after the consumption at the black solid part, a charged amount is not less than 7 .mu.C/g at an absolute value. This toner is suitable for using in combination with an organic photoconductor and can prevent that a residual image of the black solid part is remained at the half tone part immediately after the development of the black solid part.

REFERENCES:
patent: 4943504 (1990-07-01), Tomura et al.
patent: 5306589 (1994-04-01), Yamamoto et al.
patent: 5328792 (1994-07-01), Shigemori et al.

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