Electrophotography – Having particular structure – Modular or displaceable
Patent
1997-05-09
1998-05-12
Brase, Sandra L.
Electrophotography
Having particular structure
Modular or displaceable
399174, G03G 2118
Patent
active
057521352
ABSTRACT:
The door (3) of a laser printer (1) is pivoted to the frame (1c) of the printer by a pin (21) of hinge (19). When the door is shut, link (33) is rotatably connected to the hinge at a location above the pin. Link 33 has an elongated slot (33a) at its end opposite the hinge in which a pin (51) does not encounter the edge of the slot when the door is closed. Spring (31) therefore rotates U shaped link 11 around its pivot point (15) to the frame to bring charge roller (9) into contact with photoconductor drum (5). When the door is manually opened, spring 31 provides an upward force, link 33 is moved forward where the slot engages pin 51, which pivots both link 13 and door 3 upward. Force of the charge roller against the drum is by the spring as the only active element, thereby providing a controlled force.
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Coffey Johnnie A.
Foster Larry Steven
Horrall Paul Douglas
McIntyre John Randolph
Brady John A.
Brase Sandra L.
Lexmark International Inc.
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