Transparent platen with chamfered egress edge
AssigneeHewlett-Packard Development Company, L.P.
InventorsEric Andersen, Ryan M Smith, Shannon Lai, Jennifer Waskow
Life of this patent
Estimating the term…
Abstract
In one example, an apparatus includes a transparent platen to receive a document to be scanned. The transparent platen includes a scan line, an ingress edge positioned prior to the scan line in the document path, and a chamfered egress edge positioned subsequent to the document path. A light source is positioned to illuminate the document with light while the document passes across the scan line, and a focusing mechanism is positioned to focus a portion of the light that is reflected by the document onto a sensor that senses the portion of the light.
Claims15
An apparatus, comprising:
- a transparent platen to receive a document to be scanned, the transparent platen including a scan line, wherein the transparent platen includes an ingress edge positioned prior to the scan line in a path of the document to be scanned and a chamfered egress edge positioned subsequent to the scan line in the path of the document to be scanned;
- a light source to illuminate the document to be scanned with light while the document to be scanned passes across the scan line;
- a focusing mechanism to focus a portion of the light that is reflected by the document to be scanned;
- and
- a sensor to sense the portion of the light that is reflected by the document to be scanned and focused by the focusing mechanism.
An apparatus, comprising:
- a transparent platen to receive a document to be scanned, the transparent platen including a scan line, wherein the transparent platen includes an ingress edge positioned prior to the scan line in a path of the document to be scanned and a chamfered egress edge positioned subsequent to the scan line in the path of the document to be scanned;
- a reference label positioned between the ingress edge and the scan line, wherein a distance from the scan line to a nearest edge of the reference label is greater than half a lateral distance between the scan line and a scan line of another apparatus with which the apparatus is stacked;
- an electrostatic discharge mechanism positioned immediately subsequent to the egress edge in the path of the document to be scanned;
- a light source to illuminate the document to be scanned with light while the document to be scanned passes across the scan line;
- a focusing mechanism to focus a portion of the light that is reflected by the document to be scanned;
- and
- a sensor to sense the portion of the light that is reflected by the document to be scanned and focused by the focusing mechanism.
An apparatus, comprising:
- a first scanning module comprising a first scan line to scan a first side of a document;
- and
- a second scanning module positioned in a stacked arrangement with the first scanning module, the second scanning module comprising:
- a transparent platen to receive the document, the transparent platen including a second scan line to scan a second side of the document, the second scan line being laterally offset from the first scan line of the first scanning module, wherein the transparent platen includes:
- an ingress edge positioned prior to the second scan line in a path of the document;
- and
- a chamfered egress edge positioned subsequent to the second scan line in the path of the document;
- and
- an electrostatic discharge mechanism positioned immediately subsequent to the egress edge in the path of the document.
Dependencies are inferred from the claim text.