Sheet property measurement device and image forming apparatus including sheet property measurement device
AssigneeCanon Kabushiki Kaisha
InventorRyuichi Araki
Life of this patent
Estimating the term…
Abstract
A sheet property measurement device includes a passage configured to allow a sheet to be manually inserted thereinto; a reading sensor configured to read a surface of the sheet inserted into the passage; a detection unit having a displacement member configured to be brought into contact with the sheet downstream of a reading position of the reading sensor in an insertion direction in which the sheet is inserted and change in displacement amount depending on a thickness of the sheet, the detection unit being configured to detect the displacement amount of the displacement member; a sheet sensor configured to detect the sheet that has arrived at a detection position downstream of the displacement member in the insertion direction; and a controller.
Claims9
A sheet type identification device having, in an inserting/drawing out direction in which a sheet is inserted/drawn out, one end and the other end, the one end being an opening through which a sheet is inserted/drawn out, and the other end being an abutment portion to which a sheet is to be abutted, the sheet type identification device comprising:
- a reading sensor configured to read a surface of the sheet;
- and
- a controller configured to:
- control the reading sensor to read the surface of the sheet with the sheet moving across a reading area;
- and
- determine a type of the sheet using a second reading result, the second reading result being obtained by excluding a first reading result from reading results read by the reading sensor, and the first reading result being a reading result obtained during a specified period up to a last reading timing of the sheet,
- wherein the controller is configured to control to display a plurality of candidates for the type of the sheet.
A sheet type identification device having, in an inserting/drawing out direction in which a sheet is inserted/drawn out, one end and the other end, the one end being an opening through which a sheet is inserted/drawn out, and the other end being an abutment portion to which a sheet is to be abutted, the sheet type identification device comprising:
- a reading sensor configured to read a surface of the sheet;
- a controller configured to:
- control the reading sensor to read the surface of the sheet with the sheet moving across a reading area;
- and
- determine a type of the sheet using a second reading result, the second reading result being obtained by excluding a first reading result from reading results read by the reading sensor, and the first reading result being a reading result obtained during a specified period up to a last reading timing of the sheet;
- a first detection portion configured to detect presence/absence of the sheet;
- and
- a second detection portion configured to detect presence/absence of the sheet,
- wherein the first detection portion, the reading sensor, and the second detection portion are arranged in the listed order in the inserting/drawing out direction when viewed from the opening towards the abutting portion, and
- wherein, in a case in which a surface of the sheet is to be read by the reading sensor upon drawing out the sheet from the opening, the last reading timing of the sheet is a timing at which the sheet is detected to be absent by the first detection portion.
Dependencies are inferred from the claim text.