(19) |
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(11) |
EP 0 004 748 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
|
14.11.1979 Bulletin 1979/23 |
(43) |
Date of publication A2: |
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17.10.1979 Bulletin 1979/21 |
(22) |
Date of filing: 29.03.1979 |
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(84) |
Designated Contracting States: |
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DE GB NL |
(30) |
Priority: |
06.04.1978 US 893915
|
(71) |
Applicant: XEROX CORPORATION |
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() |
|
(72) |
Inventors: |
|
- Volkers, Stewart W.
()
- Webb, John L.
()
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|
|
(54) |
Electrostatographic developer mixture and imaging process |
(57) Electrostatographic developer mixtures providing substantially improved copy quality
are disclosed. The developer mixtures comprise toner particles substantially all of
which are of a size between a lower size limit of 3 microns and an upper size limit
of between 8 and 15 microns. The carrier particles have a mean size which is not less
than the upper size limit of the toner particles and not greater than 65 microns.
Imaging processes employing the developer mixtures are also disclosed.