Typewriting machines – Including adjustment for optimum printing plane
Patent
1989-06-29
1991-03-19
Burr, Edgar S.
Typewriting machines
Including adjustment for optimum printing plane
400 59, 400355, B41J 1120
Patent
active
050005901
ABSTRACT:
An adjustable shaft mechanism for adjusting the gap between a print head and a platen in a dot matrix printer has a printer frame with two end frame members and a fixed guide member. An adjustable shaft runs substantially parallel to the guide member between the end frame members. A print head carriage runs along the guide and shaft members. A substantially vertical slot in each of the end frame members is employed to adjust the adjustable shaft for movement up and down with respect to the end frame members. Spring loading means biases the shaft toward the guide member. A cam on each end member is mounted for rotation for adjusting the shaft in the slots to raise and lower the print head carriage and the associated print head with respect to the platen.
REFERENCES:
patent: 4277189 (1981-07-01), Howard et al.
patent: 4381896 (1983-05-01), Shiurila
patent: 4420269 (1983-12-01), Ackermann et al.
patent: 4439777 (1984-03-01), Aprato
patent: 4657415 (1987-04-01), Kikuchi et al.
patent: 4720200 (1988-01-01), Gomoll et al.
patent: 4774529 (1988-09-01), Paranjpe et al.
patent: 4787759 (1988-11-01), Geis et al.
patent: 4893949 (1990-01-01), Limberger et al.
patent: 4906115 (1990-03-01), Bischof
IBM Technical Disclosure Bulletin, vol. 27, No. 10B, Mar. 1985, "Slotted Bearing".
Burr Edgar S.
Hilten John S.
ITT Corporation
Lombardi Menotti J.
LandOfFree
Print head adjustment mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Print head adjustment mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Print head adjustment mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2005674