| (19) |
 |
|
(11) |
EP 0 223 693 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
13.12.1989 Bulletin 1989/50 |
| (43) |
Date of publication A2: |
|
27.05.1987 Bulletin 1987/22 |
| (22) |
Date of filing: 04.11.1986 |
|
|
| (84) |
Designated Contracting States: |
|
BE DE FR GB IT LU NL |
| (30) |
Priority: |
04.11.1985 US 794910
|
| (71) |
Applicant: Benson, Inc. |
|
Mountain View
California 94039-7169 (US) |
|
| (72) |
Inventors: |
|
- Nieto, Robert L.
Concord
California 94519 (US)
- Camacho, Joseph
San Jose
California 95118 (US)
- Hardy, Douglas
Santa Clara
California 95051 (US)
- Kamas, Peter
Sunnyvale
California 94087 (US)
|
| (74) |
Representative: Monod, Jean-Yves et al |
|
SCHLUMBERGER LIMITED
12 Place des Etats-Unis
92124 Montrouge Cedex
92124 Montrouge Cedex (FR) |
|
| |
|
| (54) |
Plotter toner station |
(57) A toner station for an electrostatic printer includes a writing head (l0) and an
integral toner application and removal station (28). The toner application station
includes a longitudinally grooved roller (35) which rotates to contact a sheet of
material to which toner is to be applied. Toner is applied to roller (35) by a sprayer
(44). Adjacent toner roller (35) a low pressure chamber (40) is provided to remove
excess toner from sheet (l5). The integral toner application and removal stages provide
rigidity for the writing head (l0).