| (19) |
 |
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(11) |
EP 0 594 366 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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14.02.1996 Bulletin 1996/07 |
| (43) |
Date of publication A2: |
|
27.04.1994 Bulletin 1994/17 |
| (22) |
Date of filing: 15.10.1993 |
|
| (51) |
International Patent Classification (IPC)5: G03G 15/08 |
|
| (84) |
Designated Contracting States: |
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DE FR GB |
| (30) |
Priority: |
22.10.1992 US 964691
|
| (71) |
Applicant: XEROX CORPORATION |
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Rochester
New York 14644 (US) |
|
| (72) |
Inventors: |
|
- Mammino, Joseph
Penfield,
New York 14526 (US)
- Hays, Dan A.
Fairport,
New York 14450 (US)
- Sypula, Donald S.
Penfield,
New York 14526 (US)
- Scharfe, Merlin E.
Penfield,
New York 14526 (US)
- Brach, Paul J.
Rochester,
New York 14617 (US)
- Morgan, Michael A.
Fairport,
New York 14450 (US)
- Thompson, Michael D.
Rochester,
New York 14620 (US)
|
| (74) |
Representative: Johnson, Reginald George et al |
|
Rank Xerox Ltd
Patent Department
Parkway
Marlow
Buckinghamshire SL7 1YL
Marlow
Buckinghamshire SL7 1YL (GB) |
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| |
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| (54) |
Electroded donor development device with dielectric overcoating |
(57) An overcoating for an electroded donor development device includes injection enabling
particles, charge transport molecules and an optional binder resin. This overcoating
can be applied to the electrodes of electroded donor devices to protect the electrodes
from wear and can also prevent shorting and breakdown.