US20080136097A1 - Paper ejection apparatus having a driving wheel moveable with an inner door - Google Patents
Paper ejection apparatus having a driving wheel moveable with an inner door Download PDFInfo
- Publication number
- US20080136097A1 US20080136097A1 US11/941,043 US94104307A US2008136097A1 US 20080136097 A1 US20080136097 A1 US 20080136097A1 US 94104307 A US94104307 A US 94104307A US 2008136097 A1 US2008136097 A1 US 2008136097A1
- Authority
- US
- United States
- Prior art keywords
- inner door
- slit
- driving wheel
- paper ejection
- ejection apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/02—Rollers
- B41J13/025—Special roller holding or lifting means, e.g. for temporarily raising one roller of a pair of nipping rollers for inserting printing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
- B41J13/106—Sheet holders, retainers, movable guides, or stationary guides for the sheet output section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
- B65H2402/44—Housings
- B65H2402/441—Housings movable for facilitating access to area inside the housing, e.g. pivoting or sliding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
- B65H2404/141—Roller pairs with particular shape of cross profile
- B65H2404/1416—Roller pairs with particular shape of cross profile toothed or cylindrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
- B65H2404/144—Roller pairs with relative movement of the rollers to / from each other
- B65H2404/1442—Tripping arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/12—Single-function printing machines, typically table-top machines
Definitions
- the present invention relates to a paper ejection apparatus, and more specifically, to a paper ejection apparatus having a driving wheel moveable with an inner door.
- FIG. 1 and FIG. 2 illustrate a prior art paper ejection mechanism 10 disclosed in the U.S. Pat. No. 5,775,824, which places the star wheel 14 on the inner door 12 that can open outward and downward to eject paper 16 during the process of paper ejection as shown in FIG. 2 .
- Such design adds to not only complexity of the transmission assembly of the printer but also complicated job of a user since he/she has to open the scanner module for cartridge replacement. Even worse, when the inner door 12 opens or closes, the star wheel 14 bears to some interference with the exit roller 18 that will easily cause the star wheel 14 to deviate, fall, or unable to home to the original position.
- the present invention provides a paper ejection apparatus having a driving wheel moveable with an inner door.
- the paper ejection apparatus comprises a housing having a first slit, the housing comprising a platform located at an end of the first slit, forming a height difference between the platform and the first slit; an inner door rotatably connected to the housing, the inner door comprising a guiding shaft located on the platform capable of sliding along the first slit after the inner door is lifted by the height difference when opening the inner door; an exit roller rotatably installed in the housing; and a driving wheel rotatably installed on the inner door for being pushed against by the exit roller with interference when the guiding shaft is located on the platform, a gap existing between the driving wheel and the exit roller when the inner door is lifted by the height difference.
- FIG. 1 and FIG. 2 are illustrations of a paper ejection mechanism having a star wheel module on it according to the prior art.
- FIG. 3 is an illustration of a multifunctional business machine with a paper ejection apparatus having a driving wheel moveable with an inner door according to the present invention.
- FIG. 4 and FIG. 5 are illustrations of partial view of the paper ejection apparatus according to the present invention.
- FIG. 6 and FIG. 7 are illustrations of partial view when the inner door is opening.
- FIG. 8 is an illustration of a perspective view of the inner door and a protrusion on the housing.
- FIG. 9 is an illustration of a perspective view of the inner door along with the driving wheel and the housing.
- FIG. 10 is an illustration of the driving wheel installed on the inner door through an elastic element.
- FIG. 3 refers to an illustration of a multifunctional business machine 20 with a paper ejection apparatus having a driving wheel moveable with an inner door according to the present invention.
- a printer module and a scanner module (inside the housing and not shown) of the multifunctional business machine 20 are assembled together and structure and element usage of a detached scanner module in the prior art is simplified.
- a user needs only open the cover 22 of the multifunctional business machine 20 and place document on the scanner module for scanning.
- an inner door 52 at the front side of the multifunctional business machine 20 can be opened directly to replace the cartridge 24 . This is because the driving wheel of the paper ejection apparatus is directly attached to the inner door 52 and when the inner door 52 opens as in FIG. 3 , the driving wheel moves with the inner door 52 , providing the multifunctional business machine 20 enough front space for cartridge 24 replacement.
- FIG. 4 is an illustration of partial view of the paper ejection apparatus 50 having a driving wheel moveable with the inner door 52 according to the present invention.
- FIG. 5 is the side view of FIG. 4 .
- the driving wheel can be exemplified with star shape, a preferred exemplary embodiment as the star wheel 54 illustrated in the figures herein, or with round shape, and the following content uses the star wheel 54 as description example.
- the paper ejection apparatus 50 comprises an inner door 52 , a star wheel 54 (or a plurality of star wheels in the exemplary embodiment), a housing 56 , and an exit roller 58 (or a plurality of exit rollers in the exemplary embodiment and each corresponding to each star wheel).
- the inner door 52 is rotatably connected to the housing 56 .
- the housing 56 comprises a first slit 561 , a second slit 563 , a platform 564 , and a spindle hole 562 .
- the platform 564 is located next to an end of the first slit 561 and forms a height difference between the platform 564 and the first slit 561 , with the platform 564 and the height difference between the platform 564 and the first slit 561 forming an L shape in the exemplary embodiment.
- the end of the first slit 561 is higher than the platform 564 in the exemplary embodiment and the first slit 561 and the second slit 563 have an arc shape.
- the inner door comprises a guiding shaft 521 , a rotary shaft 522 , and a restoring pin 523 .
- the rotary shaft 522 is rotatably disposed with one end in the spindle hole 562 of the housing 56 , making the inner door 52 rotatable about the housing 56 .
- the restoring pin 523 extends through the second slit 563 .
- the guiding shaft 521 located on the platform 564 of the housing 56 and when the inner door 52 is opened and rotating relative to the housing 56 , the inner door is first lifted by the height difference and the guiding shaft 521 then slides along the first slit 561 .
- the restoring pin 523 of the inner door 52 slides along the second slit 563 correspondingly when the inner door 52 rotates along the first slit 561 .
- FIG. 4 and FIG. 5 illustrate a position of the paper ejection apparatus 50 when the multifunctional business machine 20 is ejecting paper 60 .
- the inner door 52 is close relatively to the multifunctional business machine 20 .
- the paper 60 goes in between the exit rollers 58 and the star wheel 54 of the paper ejection apparatus 50 .
- the exit rollers 58 (usually made of rubber with high surface elasticity and friction) roll and bring the paper 60 out of the multifunctional business machine 20 .
- the star wheel 54 above the paper 60 rotates when the paper 60 moves forward.
- a plurality of teeth on the star wheel 54 pushes against the paper 60 , generating a certain friction force between the paper 60 and the exit rollers 58 and since the star wheel 54 contacts the paper 60 with the tip of the tooth, the star wheel 54 driving the paper 60 causes much less ink smear on the paper 60 .
- the exit rollers 58 are rotatably installed in the housing 56 and the star wheel 54 is rotatably installed on the inner door 52 . Since the star wheel 54 is installed on the inner door 52 via a second elastic element 541 hanging on the frame of the inner door 52 , as FIG.
- the second elastic element 541 is assembled with the star wheel 54 by passing through the star wheel 54 and fixed on the inner door 52 with its two ends, the star wheel 54 is capable of slightly moving close to or away from the inner door 52 besides the free rotation. Therefore, when the inner door 52 is closed as in FIG. 4 and FIG. 5 , the star wheel 54 on the inner door 52 of the paper ejection apparatus 50 is interfered by the exit rollers 58 and slightly pushed close to the inner door 52 .
- the inner door 52 is opened for providing enough front space for replacing the cartridge 24 , which is shown in FIG. 3 .
- FIG. 6 and FIG. 7 Please refer to FIG. 6 and FIG. 7 .
- the guiding shaft 521 , the rotary shaft 522 , and the inner door 52 that comprises the guiding shaft 521 are all lifted by the height difference due to the fact that the height difference exists between the platform 564 and the end of the first slit 561 .
- FIG. 5 and FIG. 6 show, the star wheel 54 having interference with the exit rollers 58 is lifted by the height difference in the direction V, bringing about a gap between the star wheel 54 and the exit rollers 58 as in FIG. 6 .
- the gap provides a non-interfering distance for the star wheel 54 and the exit rollers 58 while the rotary shaft 522 on the inner door 52 is also lifted slightly in the direction V but still capable of rotating in the spindle hole 562 .
- the inner door 52 keeps opening outward, the guiding shaft 521 slides along the first slit 561 . Since the star wheel 54 has come off interfering with the exit rollers 58 , the star wheel 54 is no longer pushed against by the exit rollers 58 and deviation or weak homing of the star wheel 54 is avoided.
- FIG. 7 is an illustration when the inner door 52 is completely opened.
- a first elastic element 565 is disposed between the housing 56 and the inner door 52 with its two ends connected to the housing 56 and the restoring pin 523 of the inner door 52 respectively.
- the restoring pin 523 is lifted in the direction V as in FIG. 6 and sliding along the second slit 563 of the housing 56 .
- the inner door 52 is going through a protrusion 566 on the housing 56 before it is completely opened, as in FIG. 7 .
- the first elastic element 565 between the housing 56 and the restoring pin 523 is stretched and possesses a restoring pulling force in the direction F.
- FIG. 8 refers to another perspective view of the protrusion 566 on the housing 56 and the inner door 52 as in FIG. 7 .
- FIG. 9 refers to another perspective view of the housing 56 and inner door 52 along with the star wheel 54 moveable with inner door 52 .
- the user pushes the inner door 52 toward the direction C and forces the inner door 52 to pass the protrusion 566 of the housing 56 .
- the stretched first elastic element 565 pulls the inner door 52 back in the direction F because the limitation of the protrusion 566 to the inner door 52 vanished.
- the inner door 52 is going back the state as in FIG. 6 and then as in FIG. 5 .
- the star wheel 54 again interferes with the exit rollers 58 and has an pre-stress in between, providing the paper ejection apparatus 50 the ability for bringing out the paper 60 between the star wheel 54 and the exit rollers 58 when the inner door 52 is closed.
- the paper ejection apparatus disclosed in the present invention having a driving wheel installed on the rotatable inner door allows the driving wheel to move with the inner door, and therefore provides the multifunctional business machine sufficient space for cartridge replacement when the inner door is opened.
- the height difference between the platform and the end of the slit of the housing of the multifunctional business machine allows the driving wheel and the exit roller to have an interfering pre-stress in between when the inner door is closed. And the driving wheel is not interfered by the exit roller when the inner door is opening, which prevents the driving wheel from deviating, imprecise homing, or even falling when the inner door is opening or closing.
Abstract
A paper ejection apparatus of a multifunctional business machine having a driving wheel installed on a rotatable inner door allows the driving wheel to move with the inner door, and therefore provides sufficient space for cartridge replacement when the inner door is opened. A height difference between a platform and an end of a slit of the housing of the multifunctional business machine allows the driving wheel and an exit roller to have an interfering pre-stress in between when the inner door is closed. The driving wheel is not interfered by the exit roller when the inner door is opening, which prevents the driving wheel from deviating, imprecise homing, or even falling when the inner door is opening or closing.
Description
- 1. Field of the Invention
- The present invention relates to a paper ejection apparatus, and more specifically, to a paper ejection apparatus having a driving wheel moveable with an inner door.
- 2. Description of the Prior Art
- Most business machines have paper ejection mechanism generally comprising a star wheel module and an exit roller module disposed on a printing platform. Due to the lack of space at the front of the machine, a scanner module at the top of the business machine should be uncovered for cartridge replacement, which therefore increases relevant elements and also cost of manufacturing. On the other hand, dust is easy to fall into the printing platform during cartridge replacement and brings down the printing quality. Additionally, it is more likely to damage the machine when proceeding drop down test and vibration test on the machine due to the separation of the scanner module and the printer module.
-
FIG. 1 andFIG. 2 illustrate a prior artpaper ejection mechanism 10 disclosed in the U.S. Pat. No. 5,775,824, which places thestar wheel 14 on theinner door 12 that can open outward and downward to ejectpaper 16 during the process of paper ejection as shown inFIG. 2 . Such design adds to not only complexity of the transmission assembly of the printer but also complicated job of a user since he/she has to open the scanner module for cartridge replacement. Even worse, when theinner door 12 opens or closes, thestar wheel 14 bears to some interference with theexit roller 18 that will easily cause thestar wheel 14 to deviate, fall, or unable to home to the original position. - The present invention provides a paper ejection apparatus having a driving wheel moveable with an inner door. The paper ejection apparatus comprises a housing having a first slit, the housing comprising a platform located at an end of the first slit, forming a height difference between the platform and the first slit; an inner door rotatably connected to the housing, the inner door comprising a guiding shaft located on the platform capable of sliding along the first slit after the inner door is lifted by the height difference when opening the inner door; an exit roller rotatably installed in the housing; and a driving wheel rotatably installed on the inner door for being pushed against by the exit roller with interference when the guiding shaft is located on the platform, a gap existing between the driving wheel and the exit roller when the inner door is lifted by the height difference.
- These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.
-
FIG. 1 andFIG. 2 are illustrations of a paper ejection mechanism having a star wheel module on it according to the prior art. -
FIG. 3 is an illustration of a multifunctional business machine with a paper ejection apparatus having a driving wheel moveable with an inner door according to the present invention. -
FIG. 4 andFIG. 5 are illustrations of partial view of the paper ejection apparatus according to the present invention. -
FIG. 6 andFIG. 7 are illustrations of partial view when the inner door is opening. -
FIG. 8 is an illustration of a perspective view of the inner door and a protrusion on the housing. -
FIG. 9 is an illustration of a perspective view of the inner door along with the driving wheel and the housing. -
FIG. 10 is an illustration of the driving wheel installed on the inner door through an elastic element. -
FIG. 3 refers to an illustration of amultifunctional business machine 20 with a paper ejection apparatus having a driving wheel moveable with an inner door according to the present invention. A printer module and a scanner module (inside the housing and not shown) of themultifunctional business machine 20 are assembled together and structure and element usage of a detached scanner module in the prior art is simplified. A user needs only open thecover 22 of themultifunctional business machine 20 and place document on the scanner module for scanning. When themachine 20 needs cartridge replacement, aninner door 52 at the front side of themultifunctional business machine 20 can be opened directly to replace thecartridge 24. This is because the driving wheel of the paper ejection apparatus is directly attached to theinner door 52 and when theinner door 52 opens as inFIG. 3 , the driving wheel moves with theinner door 52, providing themultifunctional business machine 20 enough front space forcartridge 24 replacement. - Please refer to
FIG. 4 andFIG. 5 .FIG. 4 is an illustration of partial view of thepaper ejection apparatus 50 having a driving wheel moveable with theinner door 52 according to the present invention.FIG. 5 is the side view ofFIG. 4 . In the present invention, the driving wheel can be exemplified with star shape, a preferred exemplary embodiment as thestar wheel 54 illustrated in the figures herein, or with round shape, and the following content uses thestar wheel 54 as description example. Thepaper ejection apparatus 50 comprises aninner door 52, a star wheel 54 (or a plurality of star wheels in the exemplary embodiment), ahousing 56, and an exit roller 58 (or a plurality of exit rollers in the exemplary embodiment and each corresponding to each star wheel). Theinner door 52 is rotatably connected to thehousing 56. - The
housing 56 comprises afirst slit 561, asecond slit 563, aplatform 564, and aspindle hole 562. Theplatform 564 is located next to an end of thefirst slit 561 and forms a height difference between theplatform 564 and thefirst slit 561, with theplatform 564 and the height difference between theplatform 564 and thefirst slit 561 forming an L shape in the exemplary embodiment. The end of thefirst slit 561 is higher than theplatform 564 in the exemplary embodiment and thefirst slit 561 and thesecond slit 563 have an arc shape. The inner door comprises a guidingshaft 521, arotary shaft 522, and a restoringpin 523. Therotary shaft 522 is rotatably disposed with one end in thespindle hole 562 of thehousing 56, making theinner door 52 rotatable about thehousing 56. The restoringpin 523 extends through thesecond slit 563. The guidingshaft 521 located on theplatform 564 of thehousing 56 and when theinner door 52 is opened and rotating relative to thehousing 56, the inner door is first lifted by the height difference and the guidingshaft 521 then slides along thefirst slit 561. The restoringpin 523 of theinner door 52 slides along thesecond slit 563 correspondingly when theinner door 52 rotates along thefirst slit 561. -
FIG. 4 andFIG. 5 illustrate a position of thepaper ejection apparatus 50 when themultifunctional business machine 20 is ejectingpaper 60. Theinner door 52 is close relatively to themultifunctional business machine 20. When thepaper 60 is ready to eject, thepaper 60 goes in between theexit rollers 58 and thestar wheel 54 of thepaper ejection apparatus 50. The exit rollers 58 (usually made of rubber with high surface elasticity and friction) roll and bring thepaper 60 out of themultifunctional business machine 20. Thestar wheel 54 above thepaper 60 rotates when thepaper 60 moves forward. A plurality of teeth on thestar wheel 54 pushes against thepaper 60, generating a certain friction force between thepaper 60 and theexit rollers 58 and since thestar wheel 54 contacts thepaper 60 with the tip of the tooth, thestar wheel 54 driving thepaper 60 causes much less ink smear on thepaper 60. Theexit rollers 58 are rotatably installed in thehousing 56 and thestar wheel 54 is rotatably installed on theinner door 52. Since thestar wheel 54 is installed on theinner door 52 via a secondelastic element 541 hanging on the frame of theinner door 52, asFIG. 10 shows, the secondelastic element 541 is assembled with thestar wheel 54 by passing through thestar wheel 54 and fixed on theinner door 52 with its two ends, thestar wheel 54 is capable of slightly moving close to or away from theinner door 52 besides the free rotation. Therefore, when theinner door 52 is closed as inFIG. 4 andFIG. 5 , thestar wheel 54 on theinner door 52 of thepaper ejection apparatus 50 is interfered by theexit rollers 58 and slightly pushed close to theinner door 52. - When performing cartridge replacement on the
multifunctional business machine 20, theinner door 52 is opened for providing enough front space for replacing thecartridge 24, which is shown inFIG. 3 . - Please refer to
FIG. 6 andFIG. 7 . When theinner door 52 of state inFIG. 5 is opened along the direction H, theguiding shaft 521, therotary shaft 522, and theinner door 52 that comprises the guidingshaft 521 are all lifted by the height difference due to the fact that the height difference exists between theplatform 564 and the end of thefirst slit 561. AsFIG. 5 andFIG. 6 show, thestar wheel 54 having interference with theexit rollers 58 is lifted by the height difference in the direction V, bringing about a gap between thestar wheel 54 and theexit rollers 58 as inFIG. 6 . The gap provides a non-interfering distance for thestar wheel 54 and theexit rollers 58 while therotary shaft 522 on theinner door 52 is also lifted slightly in the direction V but still capable of rotating in thespindle hole 562. When theinner door 52 keeps opening outward, the guidingshaft 521 slides along thefirst slit 561. Since thestar wheel 54 has come off interfering with theexit rollers 58, thestar wheel 54 is no longer pushed against by theexit rollers 58 and deviation or weak homing of thestar wheel 54 is avoided.FIG. 7 is an illustration when theinner door 52 is completely opened. - A first
elastic element 565, usually a spring, is disposed between thehousing 56 and theinner door 52 with its two ends connected to thehousing 56 and the restoringpin 523 of theinner door 52 respectively. As theinner door 52 is opening outward, the restoringpin 523 is lifted in the direction V as inFIG. 6 and sliding along thesecond slit 563 of thehousing 56. Theinner door 52 is going through aprotrusion 566 on thehousing 56 before it is completely opened, as inFIG. 7 . Meanwhile the firstelastic element 565 between thehousing 56 and the restoringpin 523 is stretched and possesses a restoring pulling force in the direction F. However, theprotrusion 566 in theFIG. 7 limits the movement of theinner door 52 that won't be pulled back by the firstelastic element 565 and will be held steady in the state as inFIG. 7 . At the state inFIG. 7 , themultifunctional business machine 20 has enough front space for replacing thecartridge 24. -
FIG. 8 refers to another perspective view of theprotrusion 566 on thehousing 56 and theinner door 52 as inFIG. 7 .FIG. 9 refers to another perspective view of thehousing 56 andinner door 52 along with thestar wheel 54 moveable withinner door 52. - After finishing the cartridge replacement, the user pushes the
inner door 52 toward the direction C and forces theinner door 52 to pass theprotrusion 566 of thehousing 56. When theinner door 52 passes theprotrusion 566, the stretched firstelastic element 565 pulls theinner door 52 back in the direction F because the limitation of theprotrusion 566 to theinner door 52 vanished. Theinner door 52 is going back the state as inFIG. 6 and then as inFIG. 5 . At this time, thestar wheel 54 again interferes with theexit rollers 58 and has an pre-stress in between, providing thepaper ejection apparatus 50 the ability for bringing out thepaper 60 between thestar wheel 54 and theexit rollers 58 when theinner door 52 is closed. - The paper ejection apparatus disclosed in the present invention having a driving wheel installed on the rotatable inner door allows the driving wheel to move with the inner door, and therefore provides the multifunctional business machine sufficient space for cartridge replacement when the inner door is opened. The height difference between the platform and the end of the slit of the housing of the multifunctional business machine allows the driving wheel and the exit roller to have an interfering pre-stress in between when the inner door is closed. And the driving wheel is not interfered by the exit roller when the inner door is opening, which prevents the driving wheel from deviating, imprecise homing, or even falling when the inner door is opening or closing.
- Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
Claims (13)
1. A paper ejection apparatus having a driving wheel moveable with an inner door, comprising:
a housing having a first slit, the housing comprising a platform located at an end of the first slit, forming a height difference between the platform and the first slit;
an inner door rotatably connected to the housing, the inner door comprising a guiding shaft located on the platform capable of sliding along the first slit after the inner door is lifted by the height difference when opening the inner door;
an exit roller rotatably installed in the housing; and
a driving wheel rotatably installed on the inner door for being pushed against by the exit roller with interference when the guiding shaft is located on the platform, a gap existing between the driving wheel and the exit roller when the inner door is lifted by the height difference.
2. The paper ejection apparatus of claim 1 wherein the gap provides a non-interfering distance for the driving wheel and the exit roller, avoiding the driving wheel from being pushed against by the exit roller when the guiding shaft slides along the first slit.
3. The paper ejection apparatus of claim 1 , further comprising a second elastic element assembled with the driving wheel and fixed on the inner door with the two ends of the second elastic element, the second elastic element allowing the driving wheel installed on the inner door for moving close to or away from the inner door.
4. The paper ejection apparatus of claim 1 wherein the housing further comprising a spindle hole, the inner door further comprising a rotary shaft with one end rotatably disposed in the spindle hole, the rotary shaft, the guiding shaft, and the driving wheel being lifted by the height difference when the inner door is lifted by the height difference.
5. The paper ejection apparatus of claim 1 wherein the end of the first slit of the housing is higher than the platform.
6. The paper ejection apparatus of claim 1 wherein the inner door further comprising a restoring pin, the housing further comprising a second slit, the restoring pin extending through the second slit and sliding along the second slit when the inner door rotates along the first slit.
7. The paper ejection apparatus of claim 6 wherein the first slit and the second slit have an arc shape.
8. The paper ejection apparatus of claim 6 , further comprising a first elastic element connecting between the restoring pin and the housing for pulling the inner door.
9. The paper ejection apparatus of claim 8 wherein the first elastic element is a spring.
10. The paper ejection apparatus of claim 1 wherein the housing further comprising a protrusion for holding the inner door.
11. The paper ejection apparatus of claim 1 wherein the driving wheel is a star wheel.
12. The paper ejection apparatus of claim 1 wherein the driving wheel is a round wheel.
13. The paper ejection apparatus of claim 1 wherein the platform and the height difference between the platform and the first slit form an L shape.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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TW095146169 | 2006-12-08 | ||
TW095146169A TW200824911A (en) | 2006-12-08 | 2006-12-08 | Paper ejection mechanism having star wheels moveable with an inner door |
Publications (1)
Publication Number | Publication Date |
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US20080136097A1 true US20080136097A1 (en) | 2008-06-12 |
Family
ID=39497038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/941,043 Abandoned US20080136097A1 (en) | 2006-12-08 | 2007-11-15 | Paper ejection apparatus having a driving wheel moveable with an inner door |
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US (1) | US20080136097A1 (en) |
TW (1) | TW200824911A (en) |
Cited By (3)
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US20070077080A1 (en) * | 2005-09-29 | 2007-04-05 | Brother Kogyo Kabushiki Kaisha | Image recording apparatus that supports conveying roller via rolling bearing |
US20100244374A1 (en) * | 2005-12-27 | 2010-09-30 | Brother Kogyo Kabushiki Kaisha | Sheet-conveying device |
WO2018038744A1 (en) * | 2016-08-26 | 2018-03-01 | Hewlett-Packard Development Company, L.P. | Flap to direct medium |
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2006
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2007
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US5606357A (en) * | 1990-07-20 | 1997-02-25 | Canon Kabushiki Kaisha | Sheet conveying means and an ink jet recording apparatus having the same |
US5441354A (en) * | 1993-04-30 | 1995-08-15 | Hewlett-Packard Company | Carriage support system for computer driven printer |
US5775824A (en) * | 1996-01-25 | 1998-07-07 | Samsung Electronics Co., Ltd. | Ink-jet printing apparatus for ejecting recording paper upon opening cover thereof |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070077080A1 (en) * | 2005-09-29 | 2007-04-05 | Brother Kogyo Kabushiki Kaisha | Image recording apparatus that supports conveying roller via rolling bearing |
US7658382B2 (en) * | 2005-09-29 | 2010-02-09 | Brother Kogyo Kabushiki Kaisha | Image recording apparatus that supports conveying roller via rolling bearing |
US20100244374A1 (en) * | 2005-12-27 | 2010-09-30 | Brother Kogyo Kabushiki Kaisha | Sheet-conveying device |
US7992869B2 (en) * | 2005-12-27 | 2011-08-09 | Brother Kogyo Kabushiki Kaisha | Sheet-conveying device |
WO2018038744A1 (en) * | 2016-08-26 | 2018-03-01 | Hewlett-Packard Development Company, L.P. | Flap to direct medium |
Also Published As
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TW200824911A (en) | 2008-06-16 |
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Owner name: BENQ CORPORATION, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HUANG, SHR-HOW;REEL/FRAME:020124/0555 Effective date: 20071101 Owner name: QISDA CORPORATION, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HUANG, SHR-HOW;REEL/FRAME:020124/0555 Effective date: 20071101 |
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