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US 11,314,190 B2Granted
Imaging system
AssigneeHewlett-Packard Development Company, L.P.
InventorsYuichiro Tomishima, Hirokazu Yukawa, Sachiyo Yamada
Life of this patent
Estimating the term…
Abstract
An imaging system includes a roller that conveys a printing medium, a medium sensor that detects a medium property of the printing medium conveyed by the roller, and a controller that adjusts a conveyance speed of the printing medium by the roller based on the medium property detected by the medium sensor.
Claims16
An imaging system comprising:
- a roller to convey a printing medium;
- a medium sensor to detect a medium property of the printing medium conveyed by the roller;
- and
- a controller to adjust a conveyance speed of the printing medium by the roller based on the medium property detected by the medium sensor,
- wherein the medium sensor comprises a light emitting portion and a light receiving portion, and
- wherein the light receiving portion comprises:
- a convex lens to receive and focus incident light;
- a diaphragm member provided with an opening located at a focal position of the convex lens to pass the focused incident light;
- a transparent diffusion member to receive and diffuse the focused incident light received through the opening;
- and
- a detector to detect diffused light received from the transparent diffusion member.
8 more elements
An imaging system comprising:
- a roller to convey a printing medium;
- a medium sensor to detect a glossiness of the printing medium conveyed by the roller;
- and
- a controller to adjust an operational condition of the roller based on the glossiness detected by the medium sensor,
- wherein the medium sensor comprises a light emitting portion and a light receiving portion, and
- wherein the light receiving portion comprises:
- a lens barrel including a convex lens at a front end;
- a diaphragm member located inside the lens barrel and having an opening located at a focal position of incident light on the convex lens;
- a transparent diffusion member located inside the lens barrel to receive and diffuse light passed through the opening;
- and
- a detector to detect diffused light received from the transparent diffusion member.
8 more elements
An imaging system comprising:
- a roller to convey a printing medium;
- a medium sensor to detect a medium property, the medium sensor comprising a light emitting portion to irradiate light on the printing medium conveyed by the roller and a light receiving portion to detect the light incident on the printing medium;
- and
- a controller to adjust an operational condition of the roller based on the medium property detected by the medium sensor,
- wherein the light receiving portion comprises:
- a convex lens;
- an optical member including a diaphragm having an opening located at a center of the diaphragm, the optical member forming a telecentric optical system with the convex lens;
- a detector to detect light;
- and
- a diffusion layer located between the detector and the diaphragm.
7 more elements
Dependencies are inferred from the claim text.