Post-processing device, and image forming apparatus

Patent metadata

Field	Value
Publication number	US-9248581-B2
Application number	US-201414174395-A
Country	US
Kind code	B2
Filing date	Feb 6, 2014
Priority date	Aug 15, 2013
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

Provided is a post-processing device including a stapling unit that performs stapling on a sheet bundle with a driving force caused by a rotation of a motor, a power supply unit that supplies power only to the motor, a sheet bundle detector that detects presence or absence of the sheet bundle which is inserted into the stapling unit, and a stapling time storage unit that stores an execution time of one session of the stapling, wherein the power supply unit initiates power supply to the motor based on a detection result of the sheet bundle detector and stops supplying the power to the motor after an elapse of a predetermined time which is stored in the stapling time storage unit.

First claim

What is claimed is:

1. A post-processing device comprising:
a stapling unit that performs stapling on a sheet bundle with a driving force caused by a rotation of a motor;
a power supply unit that supplies power only to the motor;
a sheet bundle detector that detects presence or absence of the sheet bundle which is inserted into the stapling unit; and
a stapling time storage unit that stores an execution time of one session of the stapling,
wherein the power supply unit maintains a first output voltage that is predetermined and is required for an operation of the motor and a second output voltage that is lower than the first output voltage in such a manner as to be selectable via a switching element, outputs the first output voltage to the motor based on a detection result of the sheet bundle detector, maintains the second output voltage after an elapse of a predetermined time which is stored in the stapling time storage unit, and stops supplying the power to the motor.

2. An image forming apparatus comprising:
an image recording unit that records an image on a medium; and
the post-processing device according to claim 1 .

3. The post-processing device according to claim 1 , wherein the predetermined time is about 500 ms.

4. A post-processing device comprising:
a stapling unit that performs stapling on a sheet bundle with a driving force caused by a rotation of a motor;
a power supply unit that includes a current detector and supplies power only to the motor;
a sheet bundle detector that detects a presence or absence of the sheet bundle which is inserted into the stapling unit; and
a stapling time storage unit that stores an execution time of one session of the stapling,
wherein the power supply unit maintains a first output voltage that is predetermined and is required for an operation of the motor and a second output voltage that is lower than the first output voltage in such a manner as to be selectable via a switching element, and maintains the first output voltage in a case where a current value detected by the current detector exceeds a predetermined current value within a predetermined time stored in the stapling time storage unit.

5. An image forming apparatus comprising:
an image recording unit that records an image on a medium; and
the post-processing device according to claim 4 .

6. The post-processing device according to claim 4 , wherein the predetermined time is about 500 ms.

Assignees

• Fuji Xerox Co Ltd

Inventors

• Misumi Hajime
• Kim Hyonju

Classifications

• B27F7/36 Primary

  operated by electric power · CPC title

• B31F5/001

  by stapling or riveting · CPC title

• B42C1/10

  Machines for both collating or gathering and interposing inserts · CPC title

• B42C1/12

  Machines for both collating or gathering and permanently attaching together the sheets or signatures · CPC title

• B65H2801/27

  Devices located downstream of office-type machines · CPC title