Typewriting machines – Including adjustment for optimum printing plane
Patent
1992-08-07
1994-06-21
Burr, Edgar S.
Typewriting machines
Including adjustment for optimum printing plane
400 58, 400649, B41J 1120
Patent
active
053223772
ABSTRACT:
A printing device which employs a platen frame mounted on a resin or plastic base frame with a pivoting joint and a rocker spring which biases the frames together which creates a floating platen frame. A main guide shaft is mounted on the base frame and supports a print head. A clearance member fixed to the platen frame extends toward the main guide shaft and is pressed against a clearance adjustment member attached to at least one end of the main guide shaft. The clearance adjustment member allows adjustment of the platen gap while the clearance member and bias spring automatically adjust the paten gap under various printing conditions. Using this gap fixing device, the platen gap can be maintained constant even if the frame expands due to heat, thus facilitating the use of resin frames. At the same time, by using a floating platen frame and positioning a feed motor and other components on the platen frame, noise and vibrations are decreased.
REFERENCES:
patent: 4098389 (1978-07-01), Kwan
patent: 4303013 (1981-12-01), Shimodaira
patent: 4365900 (1982-12-01), Gottsman et al.
patent: 4525085 (1985-06-01), Akazawa
patent: 4652153 (1987-03-01), Kotsuzumi et al.
patent: 4676675 (1987-06-01), Suzuki et al.
patent: 4787759 (1988-11-01), Geis et al.
patent: 4917512 (1990-04-01), Mimura et al.
patent: 5000590 (1991-03-01), Einem
patent: 5009526 (1991-04-01), Kirchhof
patent: 5017027 (1991-05-01), Koike
Burr Edgar S.
Hilten John S.
Janofsky Eric B.
Seiko Epson Corporation
LandOfFree
Printing device having a floating platen does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Printing device having a floating platen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printing device having a floating platen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2217480