Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1991-08-21
1993-10-12
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
B41J 2165
Patent
active
052529932
ABSTRACT:
A capping device for an ink jet printer includes a cap supported on a cap support member adapted to press the cap against a print head with a uniform pressure distribution despite variation in the positional relationship between the print head and the cap support member. The uniform pressure distributed is enhanced by supporting the cap by the support member in such a manner to permit the cap to pivot in at least two degrees of freedom. After the cap is sealed around an ink orifice of the printer, a preliminary suction operation reduces the pressure within a cavity defined by the cap and the print head. The pressure within the cavity is then returned to atmospheric pressure and then reduced again, but to a level which will not interfere with the ink meniscus level in the print head. The first period of suction lasts longer than the second suction period. By providing the capping device with tubes which resist the corrosive effects of ink and prevent gas from penetrating therethrough, excessive air buildup within the print head can be avoided.
REFERENCES:
patent: 4429320 (1984-01-01), Hattori
patent: 4684963 (1987-08-01), Naka
patent: 4825231 (1989-04-01), Nazaki
patent: 4829318 (1989-05-01), Racicot
Iida Katsuhiko
Tomii Tsuyoshi
Hartary Joseph W.
Seiko Epson Corporation
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