Recording apparatus, and method for controlling recording apparatus

Patent metadata

Field	Value
Publication number	US-9944096-B2
Application number	US-201615285020-A
Country	US
Kind code	B2
Filing date	Oct 4, 2016
Priority date	Oct 9, 2015
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

A recording apparatus includes a plurality of feeding units each configured to feed a sheet, a conveyance unit configured to convey the sheet to this recording unit, a first detection unit provided on an upstream side of the recording unit in a direction in which the sheet is conveyed and configured to detect whether there is the sheet, a driving control unit configured to control driving of a motor for conveying a roll sheet fed from a roll sheet feeding unit, and a determination unit configured to determine the feeding unit that feeds the sheet to the recording unit. If the first detection unit detects that there is the sheet, the driving control unit drives the motor in a direction for rewinding the roll sheet, and the determination unit executes the determination processing for the feeding unit based on an output value associated with the driving of the motor.

First claim

What is claimed is:

1. A recording apparatus comprising:
a plurality of feeding units each configured to feed a sheet;
a conveyance unit provided on an upstream side of a recording unit in a direction in which the sheet is conveyed, wherein the conveyance unit conveys the sheet to the recording unit by a first motor driving the conveyance unit;
a first detection unit provided on the upstream side of the recording unit in the direction in which the sheet is conveyed, wherein the first detection unit detects whether there is the sheet;
a control unit that controls driving of a second motor for a roll sheet feeding unit among the plurality of feeding units, so as to convey a roll sheet fed from the roll sheet feeding unit; and
at least one processor in communication with at least one memory storing computer-executable instructions which, when executed by the at least one processor, further causes the apparatus to function as:
a determination unit that determines which feeding unit among the plurality of feeding units feeds the sheet to the recording unit,
wherein, if the first detection unit detects that there is the sheet, the control unit drives the second motor in a direction for rewinding the roll sheet with the sheet fixed by the conveyance unit, and the determination unit determines the feeding unit that feeds the sheet to the recording unit based on an output value associated with the driving of the second motor, which is output when the second motor is driven in the direction for rewinding the roll sheet with the sheet fixed by the conveyance unit.

2. The recording apparatus according to claim 1 , wherein the plurality of feeding units includes the roll sheet feeding unit and a sheet feeding port that feeds a cut sheet.

3. The recording apparatus according to claim 1 , wherein the plurality of feeding units includes a plurality of roll sheet feeding units.

4. The recording apparatus according to claim 1 ,
wherein the at least one processor in communication with the at least one memory storing computer-executable instructions which, when executed by the at least one processor, further causes the apparatus to function as:
an identifying unit configured to identify an overload of the second motor based on the output value,
wherein the determination unit determines the feeding unit that feeds the sheet to the recording unit based on whether the identifying unit identifies the overload when the second motor is driven in the direction for rewinding the roll sheet with the sheet fixed by the conveyance unit.

5. The recording apparatus according to claim 4 , wherein, if the first detection unit detects that there is the sheet, the driving control unit increases a current value until the second motor reaches a specified speed with the conveyance unit fixed, and the identifying unit identifies the overload if the current value exceeds a set threshold value.

6. The recording apparatus according to claim 4 , wherein, if the identifying unit identifies the overload when the second motor is driven in the direction for rewinding the roll sheet with the sheet fixed by the conveyance unit, the determination unit determines that the sheet is the roll sheet corresponding to the motor where this overload is identified.

7. The recording apparatus according to claim 4 , wherein, if the identifying unit does not identify the overload when the second motor is driven in the direction for rewinding the roll sheet with the sheet fixed by the conveyance unit, the determination unit further determines that the roll sheet corresponding to the second motor where this overload is identified is located at a retraction position.

8. The recording apparatus according to claim 4 , wherein, if the identifying unit does not identify the overload when the second motor is driven in the direction for rewinding the roll sheet with the sheet fixed by the conveyance unit, the determination unit determines that a cut sheet is fed.

9. The recording apparatus according to claim 1 , further comprising a second detection unit provided in a vicinity of a feeding port of the roll sheet feeding unit that detects that there is the sheet,
wherein the determination unit determines a source that feeds the sheet based on the output value associated with the driving of the second motor and a result of the detection by the second detection unit.

10. The recording apparatus according to claim 1 , further comprising a sheet feeding control unit that controls a sheet feeding operation of the recording apparatus,
wherein the sheet feeding control unit determines a mode of the sheet feeding operation according to a result of the determination by the determination unit.

11. The recording apparatus according to claim 1 , further comprising a notifying unit that presents a notification indicating a result of the determination by the determination unit.

12. The recording apparatus according to claim 11 , wherein the notifying unit displays a type of the sheet loaded on a platen and a type of the sheet in a retracted state distinguishably from each other.

13. The recording apparatus according to claim 1 , wherein the determination unit makes the determination before a start of a sheet feeding operation.

14. The recording apparatus according to claim 1 , wherein the determination unit makes the determination at least any timing among timings when a release lever is opened and the sheet is loaded, when the recording apparatus is powered on, and when the recording apparatus returns from sleep.

15. A method for determining a sheet on a recording apparatus comprising a plurality of feeding units each configured to feed a sheet, the method comprising:
conveying, with use of a conveyance unit provided on an upstream side of a recording unit in a direction in which the sheet is conveyed, wherein the conveyance unit conveys, the sheet to the recording unit by a first motor driving the conveyance unit;
detecting whether there is the sheet with use of a detection unit provided on the upstream side of the recording unit in the direction in which the sheet is conveyed;
performing control so as to control driving of a second motor for a roll sheet feeding unit among the plurality of feeding units, so as to convey a roll sheet fed from the roll sheet feeding unit; and
determining which feeding unit among the plurality of feeding units feeds the sheet to the recording unit,
wherein the control includes driving the second motor in a direction for rewinding the roll sheet with the sheet fixed by the conveyance unit, and the determining includes determining the feeding unit that feeds the sheet to the recording unit based on an output value associated with the driving of the second motor, which is output when the second motor is driven in the direction for rewinding the roll sheet with the sheet fixed by the conveyance unit, if it is detected that there is the sheet by the detecting.

16. The method according to claim 15 , wherein the plurality of feeding units includes the roll sheet feeding unit and a sheet feeding port that feeds a cut sheet.

17. The method according to claim 15 , wherein the plurality of feeding units includes a plurality of roll sheet feeding units.

18. The method according to claim 15 , wherein the determining step further determines a source that feeds the sheet based on the output value associated with the driving of the second motor and a result of a detection by a second detection unit provided in a vicinity of a feeding port of the roll sheet feeding unit that detects that there is a sheet.

Assignees

• Canon Kk

Inventors

• Kudo Naotoshi

Classifications

• B41J2/01

  Ink jet · CPC title

• B65H20/38

  by changing the direction of mechanism driving the web-roll spindle · CPC title

• B65H2301/12

  of sheets or web · CPC title

• B65H16/021

  Multiple web roll supports · CPC title

• B65H2701/1311

  leading edge · CPC title