Recorders – Printing – dotting – or punching marker – Ink transfer support or moving means
Patent
1989-06-29
1990-07-24
Reinhart, Mark J.
Recorders
Printing, dotting, or punching marker
Ink transfer support or moving means
355210, 2505151, 350266, G01D 1514, G02B 2602
Patent
active
049438158
ABSTRACT:
When cover (8) of the laser printer (3) is closed, absence of the replaceable cartridge (15) or the shroud assembly (9) will activate both an electrical and a mechanical interlock. A moveable switch actuator (16) on the shroud assembly will be absent if the assembly is omitted and will not find a guide ramp (46) if the cartridge is absent, thereby assuring power to the light source remains off. A shutter (13) also blocks the normal light path and is moved aside by a pin (14) on the cartridge, and therefore blocks light unless a cartridge is installed. Walls (31) on the cartridge surround the shutter during normal use to form a protective light baffle. The laser printhead (2) is fixed within the shroud so that separation requires a necessary electrical cable (72, 74) to be disconnected.
REFERENCES:
patent: 4100419 (1978-07-01), Pedroso
patent: 4135721 (1979-01-01), Camerik
patent: 4803521 (1989-02-01), Honda
IBM Technical Disclosure Bulletin, article entitled "Cartridge and Cover Interlock Mechanism, " vol. 31, No. 7, Dec. 1988 at pp. 336 and 335.
Aldrich Charles S.
Craft James A.
Harden James P.
King Terry L.
Komplin Steven R.
Brady John A.
International Business Machines - Corporation
Reinhart Mark J.
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