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US 2003/0156873 A1Published application
Printer
AssigneeSeiko Epson Corporation
InventorMitsuhiko Nebashi
Life of this patent
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Abstract
A printer unit comprises a first positioning mechanism and a second positioning mechanism for positioning a platen with respect to a print head when a cover frame is closed. The first positioning mechanism is constituted to restrict a change in the position of the platen to a rotation around a first positioning fulcrum, such as a lock pin. The second positioning mechanism is constituted to restrict the rotation of the platen around a first positioning fulcrum by abutment on a second positioning fulcrum, such as a lock lever spindle.
Claims8
A printer comprising:
- a body frame and a print head provided on the body frame;
- a cover frame provided on the body frame to freely carry out an opening and closing operation;
- a platen provided on the cover frame and opposed to the print head with a predetermined gap when the cover frame is closed;
- a first positioning mechanism for positioning the platen with respect to the print head when the cover frame is closed and for restricting a change in a position of the platen to a rotation around a first positioning fulcrum;
- and
- a second positioning mechanism for positioning the platen with respect to the print head when the cover frame is closed and for restricting the rotation of the platen around the first positioning fulcrum by abutment on a second positioning fulcrum.
3 more elements
Dependencies are inferred from the claim text.