Source: http://www.google.com/patents/US20090014941?ie=ISO-8859-1
Timestamp: 2014-08-22 12:31:24
Document Index: 408384320

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

Patent US20090014941 - Sheet finishing apparatus and control method - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA sheet finishing apparatus includes an inlet roller to receive a sheet conveyed from an image forming apparatus, a sheet introduction unit to guide the sheet received by the inlet roller to a finishing unit, a sheet ejection unit to guide the sheet performed to a post process by the finishing unit to...http://www.google.com/patents/US20090014941?utm_source=gb-gplus-sharePatent US20090014941 - Sheet finishing apparatus and control methodAdvanced Patent SearchPublication numberUS20090014941 A1Publication typeApplicationApplication numberUS 12/169,069Publication dateJan 15, 2009Filing dateJul 8, 2008Priority dateJul 12, 2007Also published asUS7823868, US7837186, US7950642, US8028984, US20090014937, US20090014947, US20110031676, US20110079949Publication number12169069, 169069, US 2009/0014941 A1, US 2009/014941 A1, US 20090014941 A1, US 20090014941A1, US 2009014941 A1, US 2009014941A1, US-A1-20090014941, US-A1-2009014941, US2009/0014941A1, US2009/014941A1, US20090014941 A1, US20090014941A1, US2009014941 A1, US2009014941A1InventorsHiroyuki Taki, Mikio Yamamoto, Shinichiro Mano, Toshiaki OshiroOriginal AssigneeKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaExport CitationBiBTeX, EndNote, RefManReferenced by (2), Classifications (21), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetSheet finishing apparatus and control methodUS 20090014941 A1Abstract A sheet finishing apparatus includes an inlet roller to receive a sheet conveyed from an image forming apparatus, a sheet introduction unit to guide the sheet received by the inlet roller to a finishing unit, a sheet ejection unit to guide the sheet performed to a post process by the finishing unit to an ejection port and to eject from the ejection port, a paper storage tray to receive the ejected sheet, a drive unit including a plurality of motors to drive respective devices, and a control unit to control operations of the plurality of motors. In a trial operation of the sheet finishing apparatus, the control unit controls the plurality of motors, and first drives a motor with a sound pressure level less than a previously set reference level.
an inlet roller to receive a sheet; a sheet introduction unit configured to align the sheet received by the inlet roller; a finishing unit configured to perform finishing on the sheet conveyed by the sheet introduction unit; a sheet ejection unit configured to guide the sheet performed to the finishing by the finishing unit to an ejection port and to eject the sheet from the ejection port; a storage tray that moves up and down and receives the sheet ejected from the ejection port; a drive unit configured to drive respective devices existing between the inlet roller and the storage tray and including a plurality of motors having sound pressure levels less than-a previously set reference level and a plurality of motors having sound pressure levels higher than the previously set reference level; and a control unit configured to control the drive unit in a trial operation of the sheet finishing apparatus, to first drive any one of the motors having the sound pressure levels less than the previously set reference level, and then to drive other motors including the plurality of motors having the sound pressure levels higher than the previously set reference level. 2. The apparatus of claim 1, wherein the motor first driven is the motor to drive the inlet roller.
the sheet introduction unit includes a processing tray to guide the aligned sheet to the finishing unit, and a paddle to guide the sheet supplied via the inlet roller onto the processing tray, the sheet ejection unit includes a conveyor belt to guide the sheet from the processing tray to the ejection port, and the control unit first drives a motor to drive the inlet roller, and then drives a motor to drive the storage tray, a motor to drive the conveyor belt, and a motor to drive the paddle alternatively, during the trail operation. 4. The apparatus of claim 3, wherein
the finishing unit is a stapler to staple the sheet, the sheet introduction unit further includes a lateral alignment plate to laterally align the sheet in a direction perpendicular to a conveying direction, and the control unit drives a motor to move the stapler when the conveyor belt is driven, and drives a motor to drive the lateral alignment plate when the storage tray is driven. 5. The apparatus of claim 1, wherein
the control unit first drives a motor having a shortest operation time among the plurality of motors having the sound pressure levels less than the previously set reference level, during the trail operation. 6. The apparatus of claim 5, wherein the motor having the shortest operation time among the plurality of motors having the sound pressure levels less than the previously set reference level is the motor to drive the inlet roller.
7. The apparatus of claim 1, wherein the control unit first drives a motor, among the plurality of motors having the sound pressure levels less than the previously set reference level, to drive a device which is not seen from outside of the sheet finishing apparatus, during the trail operation.
8. The apparatus of claim 7, wherein the control unit first drives a motor to drive the inlet roller, and then drives a motor to drive another device, during the trail operation.
9. The apparatus of claim 7, wherein the control unit drives any one of the plurality of motors having the sound pressure levels less than the previously set reference level before the storage tray is driven, during the trail operation.
10. The apparatus of claim 9, wherein the motor first driven is the motor to drive the inlet roller.
the sheet introduction unit includes a standby tray to receive the sheet conveyed from the inlet roller before the sheet is laterally aligned, and a pusher to hold the sheet on the standby tray, and the control unit simultaneously drives a motor to drive the storage tray and a motor to drive the pusher, during the trail operation. 12. A control method of a sheet finishing apparatus, comprising:
in a normal mode in which a sheet is conveyed and is performed to finishing, receiving the sheet by an inlet roller; aligning the sheet, which is received by the inlet roller, by a sheet introduction unit and guiding to a finishing unit; guiding the sheet performed to the finishing to an ejection port by a sheet ejection unit; and receiving the sheet ejected from the ejection port by a storage tray that moves up and down, and in a trial operation of the sheet finishing apparatus, driving respective devices existing between the inlet roller and the storage tray by a drive unit; and first driving any one of a plurality of motors having sound pressure levels less than a previously set reference level, which are included in the drive unit, and then driving another motor. 13. The control method of claim 12, wherein the inlet roller is first driven during the trail operation.
14. The control method of claim 12, wherein
the finishing unit is a stapler, the sheet introduction unit includes a processing tray to guide the aligned sheet to the stapler, and a paddle to guide the sheet supplied via the inlet roller onto the processing tray, the sheet ejection unit includes a conveyor belt to guide the sheet from the processing tray to the ejection port, and the inlet roller is first driven, and then, the storage tray, the conveyor belt and the paddle are alternatively driven, during the trail operation. 15. The control method of claim 14, wherein
the sheet introduction unit further includes a lateral alignment plate to laterally align the sheet in a direction perpendicular to a transport direction, and the stapler is moved at a time of driving of the conveyor belt, and the lateral alignment plate is driven at a time of driving of the storage tray. 16. The control method of claim 12, wherein among the plurality of motors, a motor to drive an inside device whose movement is not seen from outside is first driven, during the trail operation.
17. The control method of claim 16, wherein the inlet roller is first driven, and then, another device is driven during the trail operation.
18. The control method of claim 16, wherein before the storage tray is driven, another device is driven during the trail operation. Description
U.S. Provisional Application No. 60/949,477, filed on Jul. 12, 2007, U.S. Provisional Application No. 60/949,485, filed on Jul. 12, 2007, U.S. Provisional Application No. 60/952,352, filed on Jul. 27, 2007, U.S. Provisional Application No. 60/968,293, filed on Aug. 27, 2007, U.S. Provisional Application No. 60/968,294, filed on Aug. 27, 2007 U.S. Provisional Application No. 60/968,295, filed on Aug. 27, 2007, U.S. Provisional Application No. 60/968,296, filed on Aug. 27, 2007, U.S. Provisional Application No. 60/968,298, filed on Aug. 27, 2007, and U.S. Provisional Application No. 60/968,849, filed on Aug. 29, 2007, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present invention relates to a sheet finishing apparatus for performing a finishing on a sheet ejected from an image forming apparatus, such as a copier, a printer or a multi-function peripherals (MFP), and a control method of the same, and particularly to the reduction of noise and the realization of power saving.
SUMMARY According to an aspect of the present invention, a sheet finishing apparatus, comprising:
a storage tray that moves up and down and receives the sheet ejected from the ejection port;
a drive unit configured to drive respective devices existing between the inlet roller and the storage tray and including a plurality of motors having sound pressure levels less than a previously set reference level and a plurality of motors having sound pressure levels higher than the previously set reference level; and
a control unit configured to control the drive unit in a trial operation of the sheet finishing apparatus, to first drive any one of the motors having the sound pressure levels less than the previously set reference level, and then to drive other motors including the plurality of motors having the sound pressure levels higher than the previously set reference level.
FIG. 4A is an explanatory view for explaining the operation of the roller 27 for longitudinal alignment of the sheet P, the paddle 28 and the conveyor belt 31. As shown in FIG. 4A, when the sheet P is conveyed in the direction of the paper storage tray 61, the conveyor belt 31 moves in a direction of an arrow t, and an upper roller 27 a and a lower roller 27 b for longitudinal alignment are rotated in a direction of an arrow r and a direction of an arrow s in FIG. 4A.
The sheet P is guided in the straight direction as indicated by a dotted line and advances, and when the trailing edge of the sheet P comes away from the paper feed roller 25, the rotation of the paper feed roller 25 is stopped. Then, the paddle 28 is rotated, and assists the trailing edge of the sheet P in falling.
Next, a shift is made to step S13 of FIG. 13B, the motor MT9 is rotated to move the stapler 23, and the conveyor belt 31 is rotated by the motor MT8 At step S14, it is confirmed whether the movement of the stapler 23 and the driving of the conveyor belt 31 are normal or not.
The measurement is performed such that respective motor sounds are measured by microphones arranged at the front surface part (Front mic.), the left side (Left mic.), the right side (Right mic.) and the rear surface part (Rear mic. ) of the finisher 200, and an average value (4-direction Average) thereof is obtained. Incidentally, FIGS. 15A, 15B and 15C show the results of the measurement by the noise measurement method and the microphone installation method in accordance with the standards of ISO 7779.
The measurement is performed such that the sounds of the front surface part (Front mic.), the left side (Left mic.), the right side (Right mic.) and the rear surface part (Rear mic. ) of the finisher 200 are measured by microphones, and an average value (4-direction Average) thereof is obtained. Incidentally, FIGS. 23A and 23B also show the results of measurement made by the noise measurement method and microphone installation method in accordance with the standards of ISO 7779.
Next, a fourth embodiment will be described this embodiment relates to a finisher 200 in which power consumption is reduced.
The finisher 200 may include, in addition to a first finishing unit to perform a stapling or sorting (first finishing process), a saddle unit (second finishing unit) to saddle-stitch sheets and to fold them in half. FIG. 25 is a structural view of the finisher 200 including a saddle unit 70 in addition to a staple mechanism 20.
For example, while the staple mechanism 20 is operating, the supply of the power voltage to the sheet sensor 703 of the saddle unit 70 is stopped, however, only when it is desired to detect the presence or absence of staying of a sheet or the presence or absence of a sheet being conveyed, the power voltage may be supplied to the-sheet sensor 703. Similarly, while the saddle unit 70 is operating, the supply of the power voltage to the sheet sensor 203 of the staple mechanism 20 is stopped, however, only when it is desired to detect the presence or absence of staying of a sheet or the presence or absence of a sheet being conveyed, the power voltage may be supplied to the sheet sensor 203.
The punch mechanism 90 is disposed between the MFP 100 and the staple mechanism 20, and includes a punch unit 91 and a dust box 92 (see FIG. 2) Besides, a roller 93 for conveying a sheet is provided.
Referenced byCiting PatentFiling datePublication dateApplicantTitleUS7837186 *Jul 8, 2008Nov 23, 2010Kabushiki Kaisha ToshibaSheet finishing apparatus and control methodUS8028984 *Sep 29, 2010Oct 4, 2011Kabushiki Kaisha ToshibaSheet finishing apparatus and control method* Cited by examinerClassifications U.S. Classification271/3.14International ClassificationB65H5/00Cooperative ClassificationB65H2515/706, B65H31/10, B42B4/00, B65H2301/42262, B65H2801/27, B65H31/3027, B65H2601/521, B65H31/3081, B65H2513/51, B42C1/12, B65H29/14, B65H31/36European ClassificationB65H31/30B, B65H31/30F, B65H31/10, B65H29/14, B65H31/36, B42C1/12, B42B4/00Legal EventsDateCodeEventDescriptionApr 2, 2014FPAYFee paymentYear of fee payment: 4Jul 8, 2008ASAssignmentOwner name: KABUSHIKI KAISHA TOSHIBA, JAPANOwner name: TOSHIBA TEC KABUSHIKI KAISHA, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKI, HIROYUKI;YAMAMOTO, MIKIO;MANO, SHINICHIRO;AND OTHERS;REEL/FRAME:021204/0278Effective date: 20080701RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google