Printing apparatus
AssigneeHitachi Printing Solutions, Ltd.
InventorsNobuyuki Furuya, Sadanori Kobashi, Yoshihiko Sano
Life of this patent
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Abstract
In a printing apparatus in which a sheet handling device for conducting plural kinds of post processing is connected to a subsequent stage of an image forming device, a plurality of sheet feeding apparatuses disposed in the sheet handling device have a sheet residual amount detecting sensor and a sheet exhaustion detecting sensor. When the sheet residual amount detecting sensor detects that the number of sheets in an inserter is smaller than a predetermined number, the image forming device transports a sheet after it is confirmed by the sheet exhaustion detecting sensor that a sheet remains in the inserter.
Claims19
A printing apparatus comprising:
- an image forming device;
- and
- a sheet handling device connected to a downstream side in a sheet transporting direction of said image forming device and having at least one sheet feeding apparatus,
- wherein said sheet handling device comprises a sheet residual amount detecting sensor and a sheet exhaustion detecting sensor, and in said image forming device, a timing of transporting a sheet to said sheet handling device is changed in accordance with a detection signal from said sheet residual amount detecting sensor, and
- wherein said sheet residual amount detecting sensor detects that a residual number of sheets is smaller than a predetermined number.
A printing apparatus comprising:
- an image forming device;
- a sheet handling device connected to a downstream side in a sheet transporting direction of said image forming device and having at least one sheet feeding apparatus,
- wherein said sheet handling device comprises a sheet residual amount detecting sensor and a sheet exhaustion detecting sensor, and in said image forming device, a timing of transporting a sheet to said sheet handling device is changed in accordance with a detection signal from said sheet residual amount detecting sensor;
- a stacking tray coupled to said sheet handling device, wherein a sheet fed from said sheet feeding apparatus is attached to a plurality of sheets transported from said image forming device to form a booklet;
- and
- a folding machine operably coupled to said sheet handling device and being positioned downstream of said stacking tray,
- wherein a booklet transported from said stacking tray to said folding machine is fed with a sheet from said sheet feeding apparatus.
A printing apparatus, comprising:
- an image forming device;
- and
- a sheet handling device being positioned downstream of said image forming device,
- wherein a timing of transporting a sheet from said image forming device to said sheet handling device is set such that when a residual number of sheets is smaller than a predetermined number, said image forming device transports a sheet, after a sheet transported from said sheet handling device reaches a predetermined position.
A process for producing printed sheets in a printing apparatus, comprising:
- transporting a sheet from an image forming device to a sheet handling device;
- detecting that a residual number of sheets in said sheet handling device is smaller than a predetermined number;
- timing said transporting of said sheet from said image forming device to said sheet handling device when said residual number of sheets is smaller than said predetermined number;
- and
- transporting a sheet in said image forming device after a sheet transported from said sheet handling device reaches a predetermined position.
Dependencies are inferred from the claim text.