Patent ID: 11956394
Assignee: SEIKO EPSON CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 0:
1. A reading device comprising:
a reading sensor configured to read a document; and
a controller configured to acquire image data including a document region and a background region from the reading sensor, wherein
the controller
acquires document information about a document, and
sets, based on the document information, a background range indicating a range of a luminance value regarded as the background region, wherein
the document information includes usage information indicating whether a carrier sheet that sandwiches a document is used,
the controller
sets a first background range when the usage information indicates that the carrier sheet is not used, and
sets a second background range when the usage information indicates that the carrier sheet is used, and
a minimum value of the second background range is smaller than a minimum value of the first background range.