Printing device having opening and shutting mechanism

Details Printing device having opening and shutting mechanism Printing device having opening and shutting mechanism

1993-08-19

1995-02-28

Burr, Edgar S.

Typewriting machines

Means auxiliary to typewriting function

Frame, casing, or support for typewriter

4006904, 400356, 400683, 400692, 16293, 3123192, B41J 2902

Patent

active

053931521

ABSTRACT:
A print head is supported on an upper frame of a printing device and a platen and a feeding device are supported on a lower frame. Further, a circuit substrate, a print head moving motor, and a feeding device driving motor are also supported on the upper frame. The upper and the lower frame are connected by a connection member around a rotating axis which is substantially orthogonal to the feeding direction of the print medium. The rotating axis is near a side of the platen in order to easily open and shut the upper frame. When a lock arm is released, the upper frame is pushed up by only a small angle through operation of a pre-open lever and is held in a pre-open position. When upper frame is further opened in an opening direction, the upper frame is held in a fully open position by the operation of an open lock lever. When in the fully open state, the exchange of print paper and/or the removal of the jammed paper can be done easily and safely.

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