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US 10,705,472 B2Granted
Image forming apparatus having simplex and duplex printing
AssigneeCanon Kabushiki Kaisha
InventorsSho Saito, Masahiro Mutsuno
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes a controller that receives a print job, which includes the sheet type and print settings of simplex printing or duplex printing. A sheet stacked on a feeding unit is discharged to a discharge portion with an upper surface of the sheet facing different directions in duplex printing and in simplex printing in a first mode, and the sheet stacked on the feeding unit is discharged to the discharge portion with the upper surface of the sheet facing the same direction in the duplex printing and in the simplex printing in a second mode.
Claims9
An image forming apparatus, comprising:
- a feeding unit on which a sheet is to be stacked;
- a conveying path on which the sheet fed from the feeding unit is to be conveyed;
- an image forming portion configured to form an image on the sheet conveyed on the conveying path;
- a reverse portion configured to reverse the sheet passed through the image forming portion;
- a re-conveying path on which the sheet reversed by the reverse portion is to be conveyed;
- a discharge portion to which the sheet on which the image has been formed is to be discharged;
- a storage portion configured to store attribute information associated with a sheet type;
- and
- a controller configured to receive a print job, which includes the sheet type and print settings of simplex printing or duplex printing,
- wherein, when the duplex printing is set in the print settings, the controller controls the image forming portion to form an image on a first side of the sheet conveyed from the feeding unit to the conveying path, controls the reverse portion to reverse the sheet on which the image has been formed, controls the image forming portion to form an image on a second side opposite to the first side of the sheet conveyed to the conveying path through the re-conveying path, and then discharges the sheet to the discharge portion,
- wherein, when the simplex printing is set in the print settings, the controller determines whether a mode set in the attribute information associated with the sheet type that is included in the print job is a first mode or a second mode,
- wherein, when the mode is the first mode, the controller controls the image forming portion to form an image on the first side of the sheet conveyed from the feeding unit to the conveying path, and discharges the sheet on which the image has been formed to the discharge portion without passing the sheet through the re-conveying path, and
- wherein, when the mode is the second mode, the controller controls the image forming portion to avoid forming an image on the first side of the sheet conveyed from the feeding unit to the conveying path, controls the reverse portion to reverse the sheet, controls the image forming portion to form an image on the second side opposite to the first side of the sheet conveyed to the conveying path through the re-conveying path, and discharges the sheet to the discharge portion,
- wherein the sheet stacked on the feeding unit is discharged to the discharge portion with an upper surface of the sheet facing different directions in the duplex printing and in the simplex printing in which the first mode is set, and
- wherein the sheet stacked on the feeding unit is discharged to the discharge portion with the upper surface of the sheet facing the same direction in the duplex printing and in the simplex printing in which the second mode is set.
12 more elements
An image forming apparatus, comprising:
- a feeding unit on which a sheet is to be stacked;
- a conveying path on which the sheet fed from the feeding unit is to be conveyed;
- an image forming portion configured to form an image on the sheet conveyed on the conveying path;
- a reverse portion configured to reverse the sheet passed through the image forming portion;
- a re-conveying path on which the sheet reversed by the reverse portion is to be conveyed;
- a discharge portion to which the sheet on which the image has been formed is to be discharged;
- a controller configured to receive a print job, which includes a sheet type and print settings of simplex printing or duplex printing;
- and
- a console unit through which a user sets a first mode or a second mode in attribute information associated with the sheet type,
- wherein, when the duplex printing is set in the print settings, the controller controls the image forming portion to form an image on a first side of the sheet conveyed from the feeding unit to the conveying path, controls the reverse portion to reverse the sheet on which the image has been formed, controls the image forming portion to form an image on a second side opposite to the first side of the sheet conveyed to the conveying path through the re-conveying path, and then discharges the sheet to the discharge portion,
- wherein, when the simplex printing is set in the print settings and the first mode is set in the attribute information, the controller controls the image forming portion to form an image on the first side of the sheet conveyed from the feeding unit to the conveying path, and discharges the sheet on which the image has been formed to the discharge portion without passing the sheet through the re-conveying path,
- wherein, when the simplex printing is set in the print settings and the second mode is set in the attribute information, the controller controls the image forming portion to avoid forming an image on the first side of the sheet conveyed from the feeding unit to the conveying path, controls the reverse portion to reverse the sheet, controls the image forming portion to form an image on the second side opposite to the first side of the sheet conveyed to the conveying path through the re-conveying path, and discharges the sheet to the discharge portion, and
- wherein, when the sheet type indicates a sheet unsuitable for printing in the second mode and the second mode is set in the attribute information through the console unit, the controller controls the console unit to display a screen for calling the user's attention,
- wherein the sheet stacked on the feeding unit is discharged to the discharge portion with an upper surface of the sheet facing different directions in the duplex printing and in the simplex printing in which the first mode is set, and
- wherein the sheet stacked on the feeding unit is discharged to the discharge portion with the upper surface of the sheet facing the same direction in the duplex printing and in the simplex printing in which the second mode is set.
12 more elements
An image forming apparatus, comprising:
- a plurality of feeding units on each of which a sheet is to be stacked;
- a conveying path on which the sheet fed from the plurality of feeding units is to be conveyed;
- an image forming portion configured to form an image on the sheet conveyed on the conveying path;
- a reverse portion configured to reverse the sheet passed through the image forming portion;
- a re-conveying path on which the sheet reversed by the reverse portion is to be conveyed;
- a discharge portion to which the sheet on which the image has been formed is to be discharged;
- a controller configured to receive a print job, which includes a sheet type and print settings of simplex printing or duplex printing;
- and
- a console unit through which a user sets a first mode or a second mode in attribute information associated with the sheet type so that the sheet type is set to each of the plurality of feeding units,
- wherein, when the duplex printing is set in the print settings, the controller controls the image forming portion to form an image on a first side of the sheet conveyed from the feeding unit to the conveying path, controls the reverse portion to reverse the sheet on which the image has been formed, controls the image forming portion to form an image on a second side opposite to the first side of the sheet conveyed to the conveying path through the re-conveying path, and then discharges the sheet to the discharge portion,
- wherein, when the simplex printing is set in the print settings and the first mode is set in the attribute information, the controller controls the image forming portion to form an image on the first side of the sheet conveyed from the feeding unit to the conveying path, and discharges the sheet on which the image has been formed to the discharge portion without passing the sheet through the re-conveying path,
- wherein, when the simplex printing is set in the print settings and the second mode is set in the attribute information, the controller controls the image forming portion to avoid forming an image on the first side of the sheet conveyed from the feeding unit to the conveying path, controls the reverse portion to reverse the sheet, controls the image forming portion to form an image on the second side opposite to the first side of the sheet conveyed to the conveying path through the re-conveying path, and discharges the sheet to the discharge portion, and
- wherein, when the second mode is set in the attribute information associated with the sheet type and a feeding unit of the plurality of feeding units to which the sheet type is set through the console unit is unable to convey the sheet to the conveying path, the controller controls the console unit to display a screen for calling the user's attention,
- wherein the sheet stacked on each feeding unit is discharged to the discharge portion with an upper surface of the sheet facing different directions in the duplex printing and in the simplex printing in which the first mode is set, and
- wherein the sheet stacked on each feeding unit is discharged to the discharge portion with the upper surface of the sheet facing the same direction in the duplex printing and in the simplex printing in which the second mode is set.
12 more elements
Dependencies are inferred from the claim text.