Image forming apparatus and stapler
AssigneeCanon Kabushiki Kaisha
InventorOsamu Nagasaki
Life of this patent
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Abstract
An image forming apparatus having a stapler includes an image forming unit configured to form an image on a recording material, a power source configured to supply electric power to the image forming unit and the stapler, and a control unit configured to control the operation of the stapler. In the image forming apparatus, a time period for prohibiting the operation of the stapler is set such that a total of a power consumption of the image forming unit and a power consumption of the stapler is equal to or less than an electric power the power source can supply so as to perform the operation of the stapler and the operation of the image forming unit partially in parallel with each other.
Claims20
An image forming apparatus to which a stapler to perform stapling processing on a recording material is connectable, comprising:
- a power source configured to supply electric current to the image forming apparatus and the stapler with the stapler being connected to the image forming apparatus;
- and
- a control unit configured to prohibit start of the stapling processing in a first time period when a current value of electric current supplied from the power source to the image forming apparatus reaches a maximum current value and in a second time period immediately before the first time period,
- wherein, in a case where the stapling processing starts before the second time period, the control unit sets the second time period so that a sum of the current value of the electric current supplied from the power source to the image forming apparatus and a current value of electric current supplied from the power source to the stapler is equal to or less than a limit current value in a time period when a time period of performing the stapling processing and the first time period partially overlap.
A stapler connectable to an image forming apparatus to form an image on a recording material and performing stapling processing on the recording material when electric current is supplied thereto from a power source provided to the imaging forming apparatus with the stapler being connected to the image forming apparatus, the stapler comprising:
- a control unit configured to prohibit start of the stapling processing in a first time period when a current value of electric current supplied from the power source to the image forming apparatus reaches a maximum current value and in a second time period immediately before the first time period,
- wherein, in a case where the stapling processing starts before the second time period, the control unit sets the second time period so that a sum of the current value of the electric current supplied from the power source to the image forming apparatus and a current value of the electric current supplied from the power source to the stapler is equal to or less than a limit current value in a time period when a time period of performing the stapling processing and the first time period partially overlap.
An image forming apparatus to which a stapler to perform stapling processing on a recording material is connectable, comprising:
- a power source configured to supply electric current to the image forming apparatus and the stapler with the stapler being connected to the image forming apparatus;
- and
- a control unit configured to prohibit start of the stapling processing in a first time period when electric current of a first current value is supplied from the power source to the image forming apparatus and in a second time period when electric current of a second current value smaller than the first current value is supplied from the power source to the image forming apparatus, the second time period being a period immediately before the first time period,
- wherein, in a case where the stapling processing starts before the second time period, the control unit sets the second time period so that a sum of the first current value and a current value of electric current supplied from the power source to the stapler is equal to or less than a limit current value in a time period when a time period of performing the stapling processing and the first time period partially overlap.
A stapler connectable to an image forming apparatus configured to form an image on a recording material and performing stapling processing on the recording material when electric current is supplied thereto from a power source provided to the imaging forming apparatus with the stapler being connected to the image forming apparatus, the stapler comprising:
- a control unit configured to prohibit start of the stapling processing in a first time period when electric current of a first current value is supplied from the power source to the image forming apparatus and in a second time period when electric current of a second current value smaller than the first current value is supplied from the power source to the image forming apparatus, the second time period being a period immediately before the first time period,
- wherein, in a case where the stapling processing starts before the second time period, the control unit sets the second time period so that a sum of the first current value and a current value of electric current supplied from the power source to the stapler is equal to or less than a limit current value in a time period when a time period of performing the stapling processing and the first time period partially overlap.
Dependencies are inferred from the claim text.