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US 2022/0063314 A1Published application
Cylindrical printing devices
AssigneeHewlett-Packard Development Company, L.P.
InventorsMatthew William Tivnon, Owen P. Columbus, Ken Maclean, Mickey Chia-Yu Yuan, Yun Fei Zhu
Life of this patent
Estimating the term…
Abstract
A vertical column printing device may include a print engine formed within a base housing of the vertical column printing device; a door biased by a spring away from the print engine to be selectively opened to expose the print engine; and a geared platen formed on the door to interface with the print engine to drive a roll of paper past the print engine when the door is engaged with the based housing.
Claims15
A vertical column printing device, comprising:
- a print engine formed within a base housing of the vertical column printing device;
- a door biased by a spring away from the print engine to be selectively opened to expose the print engine;
- and
- a geared platen formed on the door to interface with the print engine to drive a roll of paper past the print engine when the door is engaged with the based housing.
1 more element
A receipt printing device, comprising:
- a base portion housing a printhead, the base portion in the form of a cylinder;
- a door portion coupled to the base portion via a hinge and a latching mechanism;
- and
- a rotational portion on top portion of the base portion that disengages the latching mechanism to unlatch the door portion from the base portion;
- wherein the door portion, when unlatched, extends laterally from the cylinder base portion a distance and, upon reaching a maximum extension from the cylinder base, hinges away from the base portion housing to reveal a spool of paper on the door.
2 more elements
A thermal receipt printing device, comprising:
- a cylindrical base housing;
- a print engine formed within the cylindrical base housing;
- a door biased by a spring away from the print engine to be selectively opened to expose the print engine, the door comprising:
- a spool to hold a roll of thermally activated paper;
- and
- a geared platen formed on the door to interface with the print engine to drive the roll of thermally activated paper past the print engine when the door is engaged with the based housing;
- and
- a latching mechanism comprising a hook formed on the cylindrical base housing and a peg formed on the door;
- and
- a rotational top portion formed on the cylindrical base portion that, when rotated, disengages the peg from the hook so that the door may extend laterally from the base portion a distance and then swing away from the base portion using a hinge.
7 more elements
Dependencies are inferred from the claim text.