WO2017032041A1 - 驱动系统及图像形成装置 - Google Patents

驱动系统及图像形成装置 Download PDF

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Publication number
WO2017032041A1
WO2017032041A1 PCT/CN2016/081018 CN2016081018W WO2017032041A1 WO 2017032041 A1 WO2017032041 A1 WO 2017032041A1 CN 2016081018 W CN2016081018 W CN 2016081018W WO 2017032041 A1 WO2017032041 A1 WO 2017032041A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
driving
plane
drive
rotate
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.)
Ceased
Application number
PCT/CN2016/081018
Other languages
English (en)
French (fr)
Inventor
葛岳超
丁西宁
夏巨政
冼杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Seine Technology Co Ltd
Original Assignee
Zhuhai Seine Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhuhai Seine Technology Co Ltd filed Critical Zhuhai Seine Technology Co Ltd
Priority to EP16838303.2A priority Critical patent/EP3335890B1/en
Publication of WO2017032041A1 publication Critical patent/WO2017032041A1/zh
Priority to US15/894,400 priority patent/US10061256B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
    • G03G15/6573—Feeding path after the fixing point and up to the discharge tray or the finisher, e.g. special treatment of copy material to compensate for effects from the fixing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
    • G03G15/757—Drive mechanisms for photosensitive medium, e.g. gears
    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/60—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H85/00—Recirculating articles, i.e. feeding each article to, and delivering it from, the same machine work-station more than once
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/206—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members characterised by the driving or driven member being composed of two or more gear wheels
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2064—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat combined with pressure
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
    • G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6552—Means for discharging uncollated sheet copy material, e.g. discharging rollers, exit trays
    • 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
    • B65H2801/06—Office-type machines, e.g. photocopiers

Definitions

  • the present invention relates to image forming apparatus technology, and more particularly to a driving system and an image forming apparatus.
  • the image forming apparatus can be classified into a hitting type, an inkjet type, and an electronic imaging type according to the imaging principle. According to these three different principles, the image forming apparatus can be classified into a ribbon printer, an inkjet (Ink) printer, and a laser. (Laser) printer.
  • an image forming apparatus of the prior art includes a first path 101 and a second path 102.
  • the first path 101 is sequentially provided with a paper tray 103, a paper picking unit 104, a developing unit 105, and a fixing unit.
  • 106 and the paper discharge unit 107 the paper inlet of the second path 102 is connected between the fixing unit 106 and the paper discharge unit 107, and the paper exit of the second path 102 is connected between the paper pickup unit 104 and the developing unit 105, the second path
  • a duplex printing unit 108 is provided between the paper inlet and the paper exit of 102.
  • the sheet When the sheet is printed on one side, the sheet is conveyed by the pickup unit 104 from the tray 103 to the developing unit 105, and the developing unit 105 transfers the developer onto the front side of the sheet to form an image, and conveys the sheet to the fixing unit 106, fixing The unit 106 fixes the image on the front side of the paper and conveys the paper to the paper discharge unit 107, and the paper discharge unit 107 rotates the paper to discharge; when the paper requires double-sided printing, the paper discharge unit 107 reverses the one-sided completion.
  • the printing paper is conveyed to the paper inlet of the second path 102, after which the double-sided printing unit 108 reverses the paper and ejects it to the developing unit 105 by the paper exit of the second path 102, and the developing unit 105 transfers the developer to the reverse side of the paper to form an image.
  • the paper is conveyed to the fixing unit 106, the fixing unit 106 fixes the image on the reverse side of the paper, and conveys the paper to the paper discharge unit 107, and the paper discharge unit 107 forwards the paper.
  • the existing image forming apparatus drive system includes a first motor for driving the driving portion of the fixing unit 106 and duplex printing
  • the driving portion of the unit 108 is always rotated in the forward direction
  • the second motor drives the paper discharge unit 107 to rotate forward and reverse by the forward rotation reverse rotation. This increases the cost of the image forming apparatus and the complexity of the control system.
  • the present invention provides a drive system and an image forming apparatus to simplify the structure of the image forming apparatus and reduce the cost.
  • An aspect of the invention provides a drive system comprising:
  • a first one-way transmission assembly including a first gear and a second gear that are coaxially coupled, the first gear for engaging the second gear during rotation in a first direction to drive the second gear Rotating in the same direction and detaching from the second gear during rotation in a direction opposite to the first direction;
  • a second one-way transmission assembly including a coaxially coupled third gear and a fourth gear for engaging the fourth gear during rotation in a second direction to drive the fourth gear Rotating in the same direction and disengaging from the fourth gear during rotation in a direction opposite to the second direction;
  • first gear and the third gear are coupled to the drive gear, and the second gear and the fourth gear are coupled;
  • the first gear is configured to receive a driving force of the driving gear in a forward rotation state of the driving gear to rotate in a first direction and to drive the second gear to rotate in the same direction
  • the fourth gear is used for The driving gear rotates in a second direction while receiving a driving force of the second gear in a forward rotation state
  • the third gear is configured to receive a driving force of the driving gear in a forward rotation state of the driving gear toward Rotating in a direction opposite to the second direction;
  • the third gear is configured to receive a driving force of the driving gear in a reverse state of the driving gear to rotate in the second direction and to drive the fourth gear to rotate in the same direction
  • the second gear is used for Receiving a driving force of the fourth gear in a reverse state of the driving gear to rotate in the first direction
  • the first gear for receiving driving of the driving gear in a reverse state of the driving gear The force rotates in a direction opposite to the first direction.
  • Another aspect of the present invention provides an image forming apparatus including the driving provided by the present invention And a motor coupled to the drive gear for driving the drive gear to rotate.
  • the present invention provides a driving system and an image forming apparatus.
  • the driving system can be disposed in the image forming apparatus, and can connect the first gear to the paper discharge unit driving portion, and connect the second gear to the fixing unit driving portion. And connecting the fourth gear to the double-sided printing unit driving portion. Therefore, when it is required to print the front side of the paper, the driving gear can be rotated forward, and the driving gear drives the first gear to rotate in the first direction. At this time, the first gear and the second gear are engaged, so the first gear drives the first gear.
  • the two gears rotate in the same direction, so that the first gear can drive the paper discharge unit driving portion to rotate forward, and the second gear can drive the fixing unit driving portion to rotate forward; meanwhile, the driving gear drives the third gear to rotate in a direction opposite to the second direction.
  • the third gear and the fourth gear are disengaged, that is, the third gear cannot rotate the fourth gear in the same direction, and the fourth gear rotates in the second direction under the driving of the second gear, so the fourth gear can drive the double-sided
  • the printing unit drive unit rotates forward, and at this time, the paper can be sequentially printed by the paper pick-up unit, the developing unit, the fixing unit, and the paper discharge unit.
  • the driving gear can be reversed, and the driving gear drives the third gear to rotate in the second direction.
  • the third gear and the fourth gear are engaged, so the third gear drives the fourth gear.
  • the fourth gear can still drive the double-sided printing unit driving portion to rotate forward;
  • the driving gear drives the first gear to rotate in a direction opposite to the first direction, and the first gear and the second gear are separated from each other, that is, the first gear A gear can not drive the second gear to rotate in the same direction, and the second gear rotates in the first direction under the driving of the fourth gear, so that the second gear can still drive the fixing unit driving portion to rotate forward, and the first gear can drive the row
  • the paper unit driving portion is reversed.
  • the paper discharge unit can transfer the finished front printing paper to the double-sided printing unit, and the double-sided printing unit reverses the paper and conveys it to the developing unit, and the paper passes through the developing unit and the fixing unit. After the paper unit, the reverse side printing can be completed.
  • the image forming apparatus can realize the double-sided printing function only by providing one motor, which simplifies the structure of the image forming apparatus and reduces the cost of the image forming apparatus.
  • the driving system provided by the present invention, in the case where the motor is subjected to the positive and negative driving force, the first gear and the third gear in the driving system are forwardly or reversely rotated according to the change of the steering of the motor, regardless of whether the motor is positive or not.
  • the second gear and the fourth gear rotate in the same direction, that is, the second gear and the fourth gear always output a constant direction force, so the user can design the drive to be driven when designing the printer driver.
  • the second gear can be The double-sided printing unit driving portion is connected, and the fourth gear is connected to the fixing unit driving portion, and the first gear, the second gear, and the fourth gear are respectively connected to the driving portions of other devices to realize a motor to drive some
  • the one-way rotation of the device can drive the two-way rotation of other devices.
  • FIG. 1 is a schematic structural view of an image forming apparatus in the prior art
  • FIG. 2 is a schematic diagram of a drive system in a forward rotation state of a drive gear according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a drive system in a reverse state of a drive gear according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of another driving system according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another third one-way transmission component according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of still another driving system according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a first one-way transmission component and a second one-way transmission component according to an embodiment of the present invention.
  • an embodiment of the present invention provides a driving system including: a driving gear 201 for forward rotation or reverse rotation; a first one-way transmission assembly 202 including a first gear 203 and a coaxially coupled first gear a second gear 204, the first gear 203 is configured to engage with the second gear 204 during rotation in a first direction to drive the second gear 204 to rotate in the same direction, and to face the first direction The opposite direction of rotation is disengaged from the second gear 204; the second one-way transmission assembly 205 includes a third gear 206 and a fourth gear 207 that are coaxially coupled, and the third gear 206 is used for Engaging with the fourth gear 207 during the two-direction rotation to drive the fourth gear 207 to rotate in the same direction, and is disengaged from the fourth gear 207 during rotation in a direction opposite to the second direction Wherein the first gear 203 and the third gear 206 are coupled to the drive gear 201, the second gear 204 is coupled to the fourth gear 207; the first gear 203 and the third gear 206
  • the driving force of the second gear 204 is rotated in a second direction
  • the third gear 206 is configured to receive the driving force of the driving gear 201 in a forward rotation state of the driving gear 201 to be opposite to the second direction
  • the third gear 206 is configured to receive the driving force of the driving gear 201 in the reverse state of the driving gear 201 and rotate in the second direction to drive the fourth gear 207 to rotate in the same direction.
  • the second gear 204 is configured to receive a driving force of the fourth gear 207 in a reverse state of the driving gear 201 to rotate in the first direction
  • the first gear 203 is used in the driving
  • the gear 201 receives the driving force of the drive gear 201 in the reverse state and rotates in a direction opposite to the first direction.
  • the driving system may be disposed in the image forming apparatus, and the first gear 203 may be coupled to the paper discharge unit driving portion 208, the second gear 204 may be coupled to the fixing unit driving portion 209, and the fourth gear 207 may be coupled to The duplex printing unit drive unit 210 is connected. Therefore, when it is required to print the front side of the paper, the driving gear 201 can be rotated forward (as shown in FIG. 2), and the driving gear 201 drives the first gear 203 to rotate in the first direction.
  • the first gear 203 and the first gear The two gears 204 are engaged, so that the first gear 203 drives the second gear 204 to rotate in the same direction, so that the first gear 203 can drive the paper discharge unit driving portion 208 to rotate forward, and the second gear 204 can drive the fixing unit driving portion 209 to rotate forward;
  • the driving gear 201 drives the third gear 206 to rotate in a direction opposite to the second direction.
  • the third gear 206 and the fourth gear 207 are disengaged, that is, the third gear 206 cannot drive the fourth gear 207 to rotate in the same direction.
  • the fourth gear 207 is rotated in the second direction by the second gear 204.
  • the fourth gear 207 can drive the double-sided printing unit driving unit 210 to rotate forward.
  • the paper can sequentially pass through the paper picking unit 104 and the developing unit 105.
  • the fixing unit 106 and the paper discharge unit 107 complete the front side printing.
  • the drive gear 201 can be reversed (as shown in FIG. 3), and the drive gear 201 drives the third gear 206 to rotate in the second direction, at this time, the third gear 206 and the fourth gear 207.
  • the third gear 206 drives the fourth gear 207 to rotate in the same direction, and the fourth gear 207 can still drive the double-sided printing unit driving unit 210 to rotate forward; meanwhile, the driving gear 201 drives the first gear 203 to be opposite to the first direction.
  • the direction of rotation of the first gear 203 and the second gear 204 are disengaged, that is, the first gear 203 cannot drive the second gear 204 to rotate in the same direction.
  • the second gear 204 is rotated by the fourth gear 207 in the first direction, the second gear 204 can still drive the fixing unit driving portion 209 to rotate forward, and the first gear 203 can drive the paper discharge unit driving portion.
  • the paper discharge unit 107 can transfer the paper having completed the front side printing to the double-sided printing unit 108, and the paper is reversed by the double-sided printing unit 108 and then transferred to the developing unit 105, and the paper passes through the developing unit 105, After the fixing unit 106 and the paper discharge unit 107, the reverse printing can be completed.
  • the image forming apparatus can realize the double-sided printing function only by providing one motor, which simplifies the structure of the image forming apparatus and reduces the cost of the image forming apparatus.
  • the first gear 203 and the third gear 206 in the driving system are forwardly or reversely rotated according to the change of the steering of the motor, and
  • the second gear 204 and the fourth gear 207 always rotate in the same direction regardless of whether the motor rotates in the forward or reverse direction, that is, the second gear 204 and the fourth gear 207 always output a constant direction force, so the user can design the printer driver.
  • the target to be driven is designed by itself, for example, the second gear 204 can be connected to the duplex printing unit driving portion 210, and the fourth gear 207 can be connected to the fixing unit driving portion 209, and the first gear 203 can also be connected.
  • the second gear 204 and the fourth gear 207 are respectively connected to the driving portions of other devices to realize the effect that one motor can drive the two devices to rotate in both directions while driving some devices to rotate unidirectionally.
  • the first one-way transmission component 202 and the second one-way transmission component 205 may adopt a wedge type one-way clutch or a needle-type one-way clutch, and the first gear 203 and the second gear 204 may be implemented by using an electric lock.
  • the drive gear 201 may be an output of the motor or may be coupled to the output of the motor via a transmission gear;
  • the first gear 203 and the third gear 206 It can be directly meshed with the driving gear 201, or can be connected to the driving gear 201 through the transmission gear to meet the requirements of the steering and space of the first gear 203 and the third gear 206, and the second gear 204 and the fourth gear 207 can be directly engaged. It can also be connected through the transmission gears to meet the requirements of the steering and space of the second gear 204 and the fourth gear 207.
  • the first direction and the second direction mentioned in the embodiment may be the same direction or opposite directions.
  • the first gear 203 is connected to the paper discharge unit driving portion 208 for driving the paper discharge unit driving portion 208 to rotate; the second gear 204 is connected to the fixing unit driving portion 209 for Driving the fixing unit driving portion 209 to rotate; the fourth gear 207
  • the double-sided printing unit driving unit 210 is connected to drive the double-sided printing unit driving unit 210 to rotate. Therefore, when it is necessary to print the front side of the paper, the driving gear 201 can be rotated forward, and the driving gear 201 drives the first gear 203 to rotate in the first direction. At this time, the first gear 203 and the second gear 204 are engaged. The first gear 203 drives the second gear 204 to rotate in the same direction.
  • the first gear 203 can drive the paper discharge unit driving portion 208 to rotate forward
  • the second gear 204 can drive the fixing unit driving portion 209 to rotate forward
  • the driving gear 201 drives the first gear 203.
  • the third gear 206 rotates in a direction opposite to the second direction.
  • the third gear 206 and the fourth gear 207 are disengaged, that is, the third gear 206 cannot drive the fourth gear 207 to rotate in the same direction, and the fourth gear 207 is in the second direction.
  • the gear 204 rotates in the second direction, so that the fourth gear 207 can drive the double-sided printing unit driving portion 210 to rotate forward.
  • the paper can sequentially pass through the paper picking unit 104, the developing unit 105, the fixing unit 106, and the paper discharge.
  • Unit 107 completes the front side printing.
  • the drive gear 201 can be reversed, and the drive gear 201 drives the third gear 206 to rotate in the second direction.
  • the third gear 206 and the fourth gear 207 are engaged, so the third gear 206 drives the fourth gear 207 to rotate in the same direction, and the fourth gear 207 can still drive the double-sided printing unit driving unit 210 to rotate forward; meanwhile, the driving gear 201 drives the first gear 203 to rotate in a direction opposite to the first direction.
  • a gear 203 and the second gear 204 are disengaged, that is, the first gear 203 cannot rotate the second gear 204 in the same direction, and the second gear 204 rotates in the first direction under the driving of the fourth gear 207, so the second gear 204
  • the fixing unit driving unit 209 can still drive the forward rotation, and the first gear 203 can drive the paper discharge unit driving unit 208 to reverse.
  • the paper discharge unit 107 can transfer the finished front printing paper to the double-sided printing unit 108.
  • the paper is conveyed by the double-sided printing unit 108 and then conveyed to the developing unit 105. After passing through the developing unit 105, the fixing unit 106, and the paper discharge unit 107, the reverse printing can be completed.
  • the image forming apparatus can realize the double-sided printing function only by providing one motor, which simplifies the structure of the image forming apparatus and reduces the cost of the image forming apparatus.
  • the output end 230 of the motor is engageable with the idler gear 231, and the first idler gear 231 is meshed with the drive gear 201 to satisfy the motor and the first one-way transmission assembly 202 and the second one-way transmission.
  • the first gear 203 can mesh with the first transmission gear 232, the first transmission gear 232 meshes with the second transmission tooth 233, the second transmission gear 233 meshes with the third transmission gear 234, and the third transmission gear 234 and the paper discharge unit drive
  • the portion 208 is connected to meet the space requirement of the paper discharge unit 107.
  • the fourth gear 207 is engageable with the fourth transfer gear 235, and the fourth transfer gear 235 is engageable with the duplex printing unit drive portion 210 to satisfy the space requirement of the duplex printing unit 108.
  • the driving system further includes a third one-way transmission assembly 211 including a fifth gear 212 and a sixth gear 213 that are coaxially connected, and the fifth gear 212 is used for the forward rotation state of the driving gear 201.
  • a third one-way transmission assembly 211 including a fifth gear 212 and a sixth gear 213 that are coaxially connected, and the fifth gear 212 is used for the forward rotation state of the driving gear 201.
  • the drum driving unit 214 is connected to drive the drum driving unit 214 to rotate.
  • the gear 206 receives the driving force of the driving gear 201 and rotates in the second direction to drive the fourth gear 207 to rotate in the same direction.
  • the second gear 204 receives the driving force of the fourth gear 207 and rotates in the first direction, so that the second gear
  • the driving unit 209 can rotate the fixing unit to preheat the fixing unit 106.
  • the fifth gear 212 cannot rotate the sixth gear 213 when the driving gear 201 is reversed. Therefore, the sixth gear 213 does not.
  • the photosensitive drum driving portion 214 is rotated, so that the photosensitive drum does not operate.
  • the fixing unit 106 and the photosensitive drum are simultaneously driven during the preheating of the fixing unit 106, causing the photosensitive drum to consume the developer in the image forming cartridge, causing unnecessary waste, and preventing the photosensitive drum from discharging the developer to Inside the image forming apparatus, the image forming apparatus is contaminated.
  • the driving gear 201 drives the first gear 203 to rotate in a direction opposite to the first direction, and the first gear 203 can drive the paper discharge unit driving unit 208 to reverse.
  • the paper unit 107 can transfer the paper having completed the front side printing to the double-sided printing unit 108, and at the same time, the fourth gear 207 can drive the double-sided printing unit driving portion 210 to rotate, so that the double-sided printing unit 108 can transfer the paper to the developing.
  • the unit 105 therefore, also allows the duplex printing unit 108 to operate during the preheating of the fuser unit 106.
  • the driving gear 201 can be rotated forward (as shown in FIG. 2).
  • the first gear 203 is used to receive the driving gear 201 in the forward rotation state of the driving gear 201.
  • the driving force rotates in the first direction and drives the second gear 204 to rotate in the same direction, so that the second gear 204 can drive the fixing unit driving portion 209 to rotate; meanwhile, the fifth gear 212 can drive the driving gear 201 in the forward rotation state.
  • Sixth gear 213 is rotated in the same direction, and therefore, the sixth gear 213 can drive the photosensitive drum driving portion 214 to rotate, so that the photosensitive drum starts to operate, whereby the paper can be sequentially passed through the paper picking unit 104, the developing unit 105, the fixing unit 106, and the paper discharge unit. 107 completed the print job.
  • the third one-way transmission assembly 211 is also a one-way clutch or a planetary gear.
  • the fifth gear 212 can be used to engage with the sixth gear 213 during the rotation in the third direction to drive the sixth gear 213 to rotate in the same direction, and The fifth gear 212 is disconnected from the sixth gear 213 during the rotation in the opposite direction to the third direction, and the fifth gear 212 is coupled to the driving gear 201.
  • the fifth gear 212 can be rotated in the third direction, thereby The fifth gear 212 is engaged with the sixth gear 213 to drive the sixth gear 213 to rotate in the same direction, so that the sixth gear 213 drives the photosensitive drum driving portion 214 to rotate; when the driving gear 201 is reversed, the fifth gear 212 can be driven toward The third gear 212 rotates in the opposite direction to disengage the fifth gear 212 from the sixth gear 213. At this time, the fifth gear 212 cannot rotate the sixth gear 213, so that the sixth gear 213 does not rotate the photosensitive drum driving portion 214.
  • the third one-way transmission component 211 is a planetary gear (as shown in FIG.
  • the driving device 229 can drive the fifth gear 212 to be connected with the driving gear 201, so that the driving gear 201
  • the fifth gear 212 can be driven to rotate, and the fifth gear 212 drives the sixth gear 213 to rotate in the same direction, so that the sixth gear 213 drives the photosensitive drum driving portion 214 to rotate; during the reverse rotation of the driving gear 201, the driving device 229 can drive the first
  • the fifth gear 212 is disengaged from the driving gear 201, so that the driving gear 201 cannot rotate the fifth gear 212, so that the sixth gear 213 cannot rotate the photosensitive drum driving portion 214.
  • the third direction, the first direction, and the second direction mentioned in the embodiment may be the same direction or may not be the same direction.
  • the third one-way transmission component 211 is plural, and therefore the sixth gear 213 is also plural, and the plurality of the sixth gears 213 can be sequentially connected, one of which is fifth.
  • Gear 212 can be coupled to drive gear 201.
  • the fifth gear 212 connected to the drive gear 201 can be rotated during the forward rotation of the drive gear 201.
  • the fifth gear 212 can drive the sixth gear 213 coaxially connected to the fifth gear 212 to rotate in the same direction, so that the sixth gear 213 can drive the other sixth gear 213 to rotate, thereby enabling multiple photosensitivity.
  • the drum driving portion 214 rotates, and each photosensitive drum
  • the developers of different colors respectively correspond to color printing and save the internal space of the image forming apparatus.
  • the plurality of fifth gears 212 may each be directly meshed with the drive gear 201 or connected by a transmission gear.
  • the drive system may further include a fourth one-way transmission assembly including a seventh gear and an eighth gear that are coaxially coupled, the seventh gear for accepting the state in which the drive gear 201 is reversed
  • the driving force of the driving gear 201 drives the eighth gear to rotate in the same direction, and cannot rotate the eighth gear in the forward rotation state of the driving gear 201;
  • the eighth gear is connected to the photosensitive drum driving portion 214 for driving The photosensitive drum drive unit 214 rotates.
  • the photosensitive drum driving portion 214 connected to the eighth gear corresponds to the black developer
  • the photosensitive drum driving portion 214 connected to the sixth gear 213 of the plurality of third one-way transmission assemblies 211 corresponds to the color developing agent, thereby Color imaging is performed during the forward rotation of the drive gear 201, and black imaging is performed during the inversion of the drive gear 201.
  • the first gear 203 is an internal gear
  • the second gear 204 is an external gear
  • the third gear 206 is an internal gear
  • the fourth gear 207 is an external gear
  • the gear 203 and the third gear 206 mesh with the drive gear 201, respectively, and the second gear 204 meshes with the fourth gear 207.
  • the internal and external relationship between the external gear and the internal gear means that the projection of the external gear on a plane perpendicular to the axial direction is outside the projection of the internal gear on the plane, that is, the diameter of the internal gear is smaller than that of the coaxially connected external gear diameter.
  • the first one-way transmission assembly 202 further includes a first clutch system, the first clutch system is coupled to the first gear 203 and the second gear 204, and the first clutch system is used for
  • the first gear 203 is engaged with the second gear 204 during rotation of the first gear 203 toward the first direction, and the first gear 203 is opposite to the first direction
  • the first gear 203 is disengaged from the second gear 204 during directional rotation
  • the second one-way transmission assembly 205 further includes a second clutch system, the second clutch system and the third gear 206 Connected to a fourth gear 207 for engaging the third gear 206 with the fourth gear 207 during rotation of the third gear 206 toward the second direction, and
  • the third gear 206 rotates the third gear 206 and the fourth in a direction opposite to the second direction
  • the gear 207 is disengaged.
  • the first one-way transmission assembly 202 and the second one-way transmission assembly 205 can be made simple in structure and reliable in transmission, of course, between the first gear 203 and the second gear 204.
  • the third gear 206 and the fourth gear 207 can also be engaged or disengaged by the electric lock.
  • the first clutch system includes a first rotating shaft 215, a first elastic return device (not shown), a first protrusion 216 and a second protrusion 219,
  • the first gear 203 and the second gear 204 are sleeved on the first rotating shaft 215 and rotatable relative to the first rotating shaft 215; the first surface of the first gear 203 faces the second gear 204,
  • the first protrusion 216 is disposed on the first surface of the first gear 203, and the first protrusion 216 protrudes from the first surface of the first gear 203 along the axial direction of the first gear 203
  • the first protrusion 216 includes a first plane 217 and a second plane 218, the first plane 217 being perpendicular to the first surface of the first gear 203 and at least along the radial direction of the first gear 203 Extendingly, a first end of the second plane 218 is coupled to a top of the first plane 217, and a second end of the second plane 2
  • the second clutch system includes a second rotating shaft 222, a second elastic returning device (not shown), a third protrusion 223 and a fourth protrusion 226, the third gear 206 and the fourth
  • the gear 207 is sleeved on the second rotating shaft 222 and is rotatable relative to the second rotating shaft 222; the first surface of the third gear 206 faces the fourth gear 207, and the third protruding portion 223
  • the third protrusion 223 is disposed on the first surface of the third gear 206 along the axial direction of the third gear 206, the third protrusion
  • the portion 223 includes a fifth plane 224 that is perpendicular to the first surface of the third gear 206 and extends at least along a radial direction of the third gear 206, the sixth plane 225, the sixth plane a first end of the 225 is coupled to a top of the fifth plane 224, a second end of the sixth plane 225 is coupled to a first
  • the fourth protrusion 226 is disposed on the first surface of the fourth gear 207, and the fourth protrusion 226 protrudes from the fourth gear 207 in the axial direction of the fourth gear 207.
  • a fourth surface portion 226 includes a seventh plane 227 and an eighth plane 228, the seventh plane 227 being perpendicular to the first surface of the fourth gear 207 and at least along the fourth gear 207 Radially extending, a first end of the eighth plane 228 is coupled to a top of the seventh plane 227, and a second end of the eighth plane 228 is coupled to a first surface of the fourth gear 207, A set angle is formed between the eighth plane 228 and the seventh plane 227; the second elastic reset device is disposed between the third gear 206 and the fourth gear 207 for making the third gear 206 A set distance is maintained between the fourth gear 207 and the fourth protrusion 226, and the fifth surface and the seventh surface are used to face the third gear 206 Engaging in the second direction of rotation to enable the third gear 206 to drive the fourth
  • the first clutch system and/or the second clutch system is a needle clutch system.
  • the first one-way transmission assembly 202 and/or the second one-way transmission assembly can be made 205 is simple in structure and reliable in transmission.
  • the third one-way transmission assembly 211 can also adopt a structure similar to the first one-way transmission assembly 202 and the second one-way transmission assembly 205 described above.
  • An embodiment of the present invention provides an image forming apparatus comprising the driving system and the motor according to any of the embodiments of the present invention, the motor being coupled to the driving gear for driving the driving gear to rotate.
  • the first gear 203 can be connected to the paper discharge unit drive unit 208
  • the second gear 204 can be connected to the fixing unit drive unit 209
  • the fourth gear 207 can be connected to the duplex printing unit drive unit 210. Therefore, when it is necessary to print the front side of the paper, the driving gear 201 can be rotated forward by the motor, and the driving gear 201 drives the first gear 203 to rotate in the first direction. At this time, the first gear 203 and the second gear 204 are engaged.
  • the first gear 203 drives the second gear 204 to rotate in the same direction, so that the first gear 203 can drive the paper discharge unit driving portion 208 to rotate forward, and the second gear 204 can drive the fixing unit driving portion 209 to rotate forward; meanwhile, the driving gear 201 drives The third gear 206 rotates in a direction opposite to the second direction.
  • the third gear 206 and the fourth gear 207 are disengaged, that is, the third gear 206 cannot drive the fourth gear 207 to rotate in the same direction, and the fourth gear 207 is in the
  • the second gear 207 can drive the double-sided printing unit driving unit 210 to rotate forward.
  • the paper can sequentially pass through the paper picking unit 104, the developing unit 105, the fixing unit 106, and the row.
  • the paper unit 107 completes the front side printing.
  • the drive gear 201 can be reversed by the motor drive, and the drive gear 201 drives the third gear 206 to rotate in the second direction.
  • the third gear 206 and the fourth gear 207 are engaged, so the third The gear 206 drives the fourth gear 207 to rotate in the same direction, and the fourth gear 207 can still drive the double-sided printing unit driving unit 210 to rotate forward; meanwhile, the driving gear 201 drives the first gear 203 to rotate in a direction opposite to the first direction.
  • the first gear 203 and the second gear 204 are disengaged, that is, the first gear 203 cannot drive the second gear 204 to rotate in the same direction, and the second gear 204 rotates in the first direction under the driving of the fourth gear 207, so the second gear
  • the second gear 203 can drive the paper discharge unit driving unit 208 to rotate backward.
  • the paper discharge unit 107 can transfer the finished front printing paper to the double-sided printing unit 108.
  • the paper is reversed by the double-sided printing unit 108 and then transferred to the developing unit 105.
  • the reverse printing After passing through the developing unit 105, the fixing unit 106, and the paper discharge unit 107, the reverse printing can be completed.Thus, the figure The image forming apparatus only needs to provide one motor to realize the double-sided printing function, which simplifies the structure of the image forming apparatus and reduces the cost of the image forming apparatus.
  • the first gear 203 and the third gear 206 in the driving system are forwardly or reversely rotated according to the change of the steering of the motor, and
  • the second gear 204 and the fourth gear 207 always rotate in the same direction regardless of whether the motor rotates in the forward or reverse direction, that is, the second gear 204 and the fourth gear 207 always output a constant direction force, so the user can design the printer driver.
  • the target to be driven is designed by itself, for example, the second gear 204 can be connected to the duplex printing unit driving portion 210, and the fourth gear 207 can be connected to the fixing unit driving portion 209, and the first gear 203 can also be connected.
  • the second gear 204 and the fourth gear 207 are respectively connected to the driving portions of other devices to realize the effect that one motor can drive the two devices to rotate in both directions while driving some devices to rotate unidirectionally.
  • the image forming apparatus further includes: a paper discharge unit 107 connected to the paper discharge unit driving unit 208; a fixing unit 106 connected to the fixing unit driving unit 209; and a double-sided printing unit 108, It is connected to the duplex printing unit driving unit 210.
  • the paper discharge unit 107 can be rotated bidirectionally to realize paper discharge from the first path 101 or paper to the second path 102, and the second gear 204 and the The four gears 207 can always drive the fixing unit driving portion 209 and the duplex printing unit driving portion 210 to rotate in one direction, thereby causing the fixing unit 106 and the duplex printing unit 108 to always rotate in one direction to complete the printing operation, whereby the image forming apparatus It is only necessary to provide one motor to realize the double-sided printing function, which simplifies the structure of the image forming apparatus and reduces the cost of the image forming apparatus.

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Abstract

一种驱动系统及图像形成装置，驱动系统包括：驱动齿轮（201），用于正转或反转，第一单向传动组件（202），包括同轴连接的第一齿轮（203）和第二齿轮（204），第一齿轮（203）用于在朝第一方向旋转过程中与第二齿轮（204）相接合以带动第二齿轮同向旋转，并在朝与第一方向相反的方向旋转过程中与第二齿轮（204）相脱离，第二单向传动组件（205），包括同轴连接的第三齿轮（206）和第四齿轮（207），第三齿轮（206）用于在朝第二方向旋转过程中与第四齿轮（207）相接合以带动第四齿轮（207）同向旋转，并在朝与第二方向相反的方向旋转过程中与第四齿轮（207）相脱离，其中，第一齿轮（203）和第三齿轮（206）与驱动齿轮（201）相连接，第二齿轮（204）和第四齿轮（207）相连接，该装置能够简化图像形成装置的结构、降低成本。

Description

驱动系统及图像形成装置 技术领域
本发明涉及图像形成设备技术，尤其涉及一种驱动系统及图像形成装置。
背景技术
图像形成装置按照成像原理可以分为击打式、喷墨式、电子成像式，按照这三种不同的原理，图像形成装置可以分为色带(Ribbon)打印机、喷墨(Ink)打印机、激光(Laser)打印机。
如图1所示，现有技术的一种图像形成装置，包括第一路径101和第二路径102，第一路径101上依次设置有纸盘103、拾纸单元104、显影单元105、定影单元106和排纸单元107，第二路径102的纸张入口连接在定影单元106和排纸单元107之间，第二路径102的纸张出口连接在拾纸单元104和显影单元105之间，第二路径102的纸张入口和纸张出口之间设有双面打印单元108。当纸张单面打印时，由拾纸单元104将纸张由纸盘103传送至显影单元105，显影单元105将显影剂转印到纸张的正面上形成画像，并将纸张传送至定影单元106，定影单元106将画像固定在纸张的正面上，并将纸张传送至排纸单元107，排纸单元107正转将纸张排出；当纸张需要双面打印时，排纸单元107反转将已经完成单面打印纸张传送至第二路径102的纸张入口，之后双面打印单元108将纸张翻转后由第二路径102的纸张出口排出至显影单元105，显影单元105将显影剂转印到纸张的反面形成画像，并将纸张传送至定影单元106，定影单元106将画像固定在纸张的反面上，并将纸张传送至排纸单元107，排纸单元107正转将纸张排出。
在上述打印过程中，定影单元106的驱动部和双面打印单元108的驱动部始终正向转动，而排纸单元107在单面打印过程中需要正转，在双面打印过程中需要反转，因此现有的图像形成装置驱动系统包括第一马达和第二马达，第一马达用于驱动定影单元106的驱动部和双面打印 单元108的驱动部始终正向转动，第二马达则通过正转反转驱动排纸单元107正转、反转。由此增加了图像形成装置的成本以及控制系统的复杂性。
发明内容
本发明提供一种驱动系统及图像形成装置，以简化图像形成装置的结构、降低成本。
本发明一方面提供一种驱动系统，包括：
驱动齿轮，用于正转或反转；
第一单向传动组件，包括同轴连接的第一齿轮和第二齿轮，所述第一齿轮用于在朝第一方向旋转过程中与所述第二齿轮相接合以带动所述第二齿轮同向旋转，并在朝与所述第一方向相反的方向旋转过程中与所述第二齿轮相脱离；
第二单向传动组件，包括同轴连接的第三齿轮和第四齿轮，所述第三齿轮用于在朝第二方向旋转过程中与所述第四齿轮相接合以带动所述第四齿轮同向旋转，并在朝与所述第二方向相反的方向旋转过程中与所述第四齿轮相脱离；
其中，所述第一齿轮和第三齿轮与所述驱动齿轮相连接，所述第二齿轮和所述第四齿轮相连接；
所述第一齿轮用于在所述驱动齿轮正转状态下接受所述驱动齿轮的驱动力而朝第一方向旋转并带动所述第二齿轮同向旋转，所述第四齿轮用于在所述驱动齿轮正转状态下接受所述第二齿轮的驱动力而朝第二方向旋转，所述第三齿轮用于在所述驱动齿轮正转状态下接受所述驱动齿轮的驱动力而朝与所述第二方向相反的方向旋转；
所述第三齿轮用于在所述驱动齿轮反转状态下接受所述驱动齿轮的驱动力而朝所述第二方向旋转并带动所述第四齿轮同向旋转，所述第二齿轮用于在所述驱动齿轮反转状态下接受所述第四齿轮的驱动力而朝所述第一方向旋转，所述第一齿轮用于在所述驱动齿轮反转状态下接受所述驱动齿轮的驱动力而朝与所述第一方向相反的方向旋转。
本发明另一方面提供一种图像形成装置，包括本发明所提供的驱动 系统和马达，所述马达与所述驱动齿轮连接，用于驱动所述驱动齿轮旋转。
基于上述，本发明提供的一种驱动系统及图像形成装置，驱动系统可设置在图像形成装置中，并可将第一齿轮与排纸单元驱动部连接，将第二齿轮与定影单元驱动部连接，将第四齿轮与双面打印单元驱动部连接。由此，当需要对纸张的正面进行打印时，可使驱动齿轮正转，驱动齿轮带动第一齿轮朝第一方向旋转，此时第一齿轮和第二齿轮相接合，因此第一齿轮带动第二齿轮同向旋转，因此第一齿轮能够带动排纸单元驱动部正转，第二齿轮能够带动定影单元驱动部正转；同时，驱动齿轮带动第三齿轮朝与第二方向相反的方向旋转，此时第三齿轮和第四齿轮相脱离，即第三齿轮无法带动第四齿轮同向旋转，而第四齿轮在第二齿轮的带动下朝第二方向旋转，因此第四齿轮能够带动双面打印单元驱动部正转，此时，纸张能够依次通过拾纸单元、显影单元、定影单元和排纸单元完成正面打印。当需要对纸张的反面进行打印时，可使驱动齿轮反转，驱动齿轮带动第三齿轮朝第二方向旋转，此时第三齿轮和第四齿轮相接合，因此第三齿轮带动第四齿轮同向旋转，第四齿轮依然能够带动双面打印单元驱动部正转；同时，驱动齿轮带动第一齿轮朝与第一方向相反的方向旋转，此时第一齿轮和第二齿轮相脱离，即第一齿轮无法带动第二齿轮同向旋转，而第二齿轮在第四齿轮的带动下朝第一方向旋转，因此第二齿轮依然能够带动定影单元驱动部正转，而第一齿轮则能够带动排纸单元驱动部反转，此时，排纸单元能够将已经完成正面打印纸张传送至双面打印单元处，由双面打印单元将纸张翻转后传送至显影单元，纸张在经过显影单元、定影单元和排纸单元后，便能完成反面打印。由此，图像形成装置只需要设置一个马达即可实现双面打印功能，简化了图像形成装置的结构、降低了图像形成装置的成本。由于本发明提供的驱动系统，在接受马达在正反转驱动力的情况下，驱动系统中第一齿轮和第三齿轮会根据马达转向的变化而进行正转或反转，而无论马达在正转还是反转第二齿轮和第四齿轮均会朝同一方向旋转，即第二齿轮和第四齿轮始终输出一个恒定方向的力，因此用户可以在设计打印机驱动的时候，根据需要自行设计待驱动的目标，例如：可将第二齿轮与 双面打印单元驱动部连接，而将第四齿轮与定影单元驱动部连接，还可将第一齿轮、第二齿轮和第四齿轮分别和其他装置的驱动部连接，以实现一个马达在带动一些装置单向旋转的同时能够带动另一些装置双向旋转的效果。
附图说明
图1为现有技术中的一种图像形成装置的结构示意图；
图2为本发明实施例提供的一种驱动系统的在驱动齿轮正转状态下的示意图；
图3为本发明实施例提供的一种驱动系统的在驱动齿轮反转状态下的示意图；
图4为本发明实施例提供的另一种驱动系统的结构示意图；
图5为本发明实施例提供的另一种第三单向传动组件的结构示意图；
图6为本发明实施例提供的再一种驱动系统的结构示意图；
图7为本发明实施例提供的一种第一单向传动组件和第二单向传动组件的结构示意图。
具体实施方式
请参考图1-3，本发明实施例提供一种驱动系统，包括：驱动齿轮201，用于正转或反转；第一单向传动组件202，包括同轴连接的第一齿轮203和第二齿轮204，所述第一齿轮203用于在朝第一方向旋转过程中与所述第二齿轮204相接合以带动所述第二齿轮204同向旋转，并在朝与所述第一方向相反的方向旋转过程中与所述第二齿轮204相脱离；第二单向传动组件205，包括同轴连接的第三齿轮206和第四齿轮207，所述第三齿轮206用于在朝第二方向旋转过程中与所述第四齿轮207相接合以带动所述第四齿轮207同向旋转，并在朝与所述第二方向相反的方向旋转过程中与所述第四齿轮207相脱离；其中，所述第一齿轮203和第三齿轮206与所述驱动齿轮201相连接，所述第二齿轮204和所述第四齿轮207相连接；所述第一齿轮203用于在所述驱动齿轮201正转 状态下接受所述驱动齿轮201的驱动力而朝第一方向旋转并带动所述第二齿轮204同向旋转，所述第四齿轮207用于在所述驱动齿轮201正转状态下接受所述第二齿轮204的驱动力而朝第二方向旋转，所述第三齿轮206用于在所述驱动齿轮201正转状态下接受所述驱动齿轮201的驱动力而朝与所述第二方向相反的方向旋转；所述第三齿轮206用于在所述驱动齿轮201反转状态下接受所述驱动齿轮201的驱动力而朝所述第二方向旋转并带动所述第四齿轮207同向旋转，所述第二齿轮204用于在所述驱动齿轮201反转状态下接受所述第四齿轮207的驱动力而朝所述第一方向旋转，所述第一齿轮203用于在所述驱动齿轮201反转状态下接受所述驱动齿轮201的驱动力而朝与所述第一方向相反的方向旋转。
本实施例中，驱动系统可设置在图像形成装置中，并可将第一齿轮203与排纸单元驱动部208连接，将第二齿轮204与定影单元驱动部209连接，将第四齿轮207与双面打印单元驱动部210连接。由此，当需要对纸张的正面进行打印时，可使驱动齿轮201正转(如图2所示)，驱动齿轮201带动第一齿轮203朝第一方向旋转，此时第一齿轮203和第二齿轮204相接合，因此第一齿轮203带动第二齿轮204同向旋转，因此第一齿轮203能够带动排纸单元驱动部208正转，第二齿轮204能够带动定影单元驱动部209正转；同时，驱动齿轮201带动第三齿轮206朝与第二方向相反的方向旋转，此时第三齿轮206和第四齿轮207相脱离，即第三齿轮206无法带动第四齿轮207同向旋转，而第四齿轮207在第二齿轮204的带动下朝第二方向旋转，因此第四齿轮207能够带动双面打印单元驱动部210正转，此时，纸张能够依次通过拾纸单元104、显影单元105、定影单元106和排纸单元107完成正面打印。当需要对纸张的反面进行打印时，可使驱动齿轮201反转(如图3所示)，驱动齿轮201带动第三齿轮206朝第二方向旋转，此时第三齿轮206和第四齿轮207相接合，因此第三齿轮206带动第四齿轮207同向旋转，第四齿轮207依然能够带动双面打印单元驱动部210正转；同时，驱动齿轮201带动第一齿轮203朝与第一方向相反的方向旋转，此时第一齿轮203和第二齿轮204相脱离，即第一齿轮203无法带动第二齿轮204同向旋 转，而第二齿轮204在第四齿轮207的带动下朝第一方向旋转，因此第二齿轮204依然能够带动定影单元驱动部209正转，而第一齿轮203则能够带动排纸单元驱动部208反转，此时，排纸单元107能够将已经完成正面打印纸张传送至双面打印单元108处，由双面打印单元108将纸张翻转后传送至显影单元105，纸张在经过显影单元105、定影单元106和排纸单元107后，便能完成反面打印。由此，图像形成装置只需要设置一个马达即可实现双面打印功能，简化了图像形成装置的结构、降低了图像形成装置的成本。由于本发明实施例提供的驱动系统，在接受马达在正反转驱动力的情况下，驱动系统中第一齿轮203和第三齿轮206会根据马达转向的变化而进行正转或反转，而无论马达在正转还是反转第二齿轮204和第四齿轮207均会朝同一方向旋转，即第二齿轮204和第四齿轮207始终输出一个恒定方向的力，因此用户可以在设计打印机驱动的时候，根据需要自行设计待驱动的目标，例如：可将第二齿轮204与双面打印单元驱动部210连接，而将第四齿轮207与定影单元驱动部209连接，还可将第一齿轮203、第二齿轮204和第四齿轮207分别和其他装置的驱动部连接，以实现一个马达在带动一些装置单向旋转的同时能够带动另一些装置双向旋转的效果。
其中，第一单向传动组件202和第二单向传动组件205可采用楔块式单向离合器或滚针式单向离合器，也可采用电动锁件来实现第一齿轮203和第二齿轮204的接合或分离以及第三齿轮206和第四齿轮207的接合或分离；驱动齿轮201可以为马达的输出端，也可通过传动齿轮与马达的输出端连接；第一齿轮203和第三齿轮206可直接与驱动齿轮201相啮合，也可通过传动齿轮与驱动齿轮201相连接，以满足第一齿轮203和第三齿轮206转向及空间的要求，第二齿轮204和第四齿轮207可直接啮合，也可通过传动齿轮相连接，从而满足第二齿轮204和第四齿轮207转向及空间的要求。另外，本实施例中所提及的第一方向和第二方向可为同一方向也可为相反的方向。
本实施例中，优选的，第一齿轮203与排纸单元驱动部208连接，用于驱动所述排纸单元驱动部208旋转；所述第二齿轮204与定影单元驱动部209连接，用于驱动所述定影单元驱动部209旋转；第四齿轮207 与双面打印单元驱动部210连接，用于驱动所述双面打印单元驱动部210旋转。由此，当需要对纸张的正面进行打印时，可使驱动齿轮201正转，驱动齿轮201带动第一齿轮203朝第一方向旋转，此时第一齿轮203和第二齿轮204相接合，因此第一齿轮203带动第二齿轮204同向旋转，因此第一齿轮203能够带动排纸单元驱动部208正转，第二齿轮204能够带动定影单元驱动部209正转；同时，驱动齿轮201带动第三齿轮206朝与第二方向相反的方向旋转，此时第三齿轮206和第四齿轮207相脱离，即第三齿轮206无法带动第四齿轮207同向旋转，而第四齿轮207在第二齿轮204的带动下朝第二方向旋转，因此第四齿轮207能够带动双面打印单元驱动部210正转，此时，纸张能够依次通过拾纸单元104、显影单元105、定影单元106和排纸单元107完成正面打印。当需要对纸张的反面进行打印时，可使驱动齿轮201反转，驱动齿轮201带动第三齿轮206朝第二方向旋转，此时第三齿轮206和第四齿轮207相接合，因此第三齿轮206带动第四齿轮207同向旋转，第四齿轮207依然能够带动双面打印单元驱动部210正转；同时，驱动齿轮201带动第一齿轮203朝与第一方向相反的方向旋转，此时第一齿轮203和第二齿轮204相脱离，即第一齿轮203无法带动第二齿轮204同向旋转，而第二齿轮204在第四齿轮207的带动下朝第一方向旋转，因此第二齿轮204依然能够带动定影单元驱动部209正转，而第一齿轮203则能够带动排纸单元驱动部208反转，此时，排纸单元107能够将已经完成正面打印纸张传送至双面打印单元108处，由双面打印单元108将纸张翻转后传送至显影单元105，纸张在经过显影单元105、定影单元106和排纸单元107后，便能完成反面打印。由此，图像形成装置只需要设置一个马达即可实现双面打印功能，简化了图像形成装置的结构、降低了图像形成装置的成本。
请参考图4，本实施例中，马达的输出端230可与惰轮231啮合，第一惰轮231与驱动齿轮201啮合，以满足马达与第一单向传动组件202和第二单向传动组件205之间的空间要求。第一齿轮203可与第一传动齿轮232啮合，第一传动齿轮232与第二传动齿233轮啮合，第二传动齿轮233与第三传动齿轮234啮合，第三传动齿轮234与排纸单元驱动 部208连接，以满足排纸单元107的空间要求。第四齿轮207可以与第四传动齿轮235啮合，第四传动齿轮235可与双面打印单元驱动部210啮合，以满足双面打印单元108的空间要求。
本实施例中，优选的，驱动系统还包括第三单向传动组件211，包括同轴连接的第五齿轮212和第六齿轮213，所述第五齿轮212用于在驱动齿轮201正转状态下接受所述驱动齿轮201的驱动力并带动所述第六齿轮213同向旋转，并在所述驱动齿轮201反转状态下无法带动所述第六齿轮213旋转；所述第六齿轮213与感光鼓驱动部214连接，用于驱动所述感光鼓驱动部214旋转。图像形成装置启动或者开始成像的时候，需要先对定影单元106进行预热，在定影单元106预热的过程中，可使驱动齿轮201反转(如图3所示)，此时，第三齿轮206接受驱动齿轮201的驱动力而朝第二方向旋转并带动所述第四齿轮207同向旋转，第二齿轮204接受第四齿轮207的驱动力而朝第一方向旋转，从而第二齿轮204能够带动定影单元驱动部209旋转，对定影单元106进行预热；同时，第五齿轮212在驱动齿轮201反转状态下无法带动所述第六齿轮213旋转，因此，第六齿轮213不会带动感光鼓驱动部214旋转，因此感光鼓不会工作。由此可以避免在定影单元106预热的过程中定影单元106和感光鼓同时被驱动，使感光鼓耗费成像盒中的显影剂，造成不必要的浪费，还可防止感光鼓将显影剂排出到图像形成装置内部，污染图像形成装置。另外，在定影单元106预热的过程中，驱动齿轮201带动第一齿轮203朝与第一方向相反的方向旋转，第一齿轮203则能够带动排纸单元驱动部208反转，此时，排纸单元107能够将已经完成正面打印纸张传送至双面打印单元108处，同时，第四齿轮207能够带动双面打印单元驱动部210旋转，使双面打印单元108能够将纸张翻转后传送至显影单元105，因此在定影单元106预热的过程中也可使双面打印单元108工作。当定影单元106预热完成后，进行打印时，可使驱动齿轮201正转(如图2所示)，此时，第一齿轮203用于在驱动齿轮201正转状态下接受驱动齿轮201的驱动力而朝第一方向旋转并带动第二齿轮204同向旋转，从而第二齿轮204能够带动定影单元驱动部209旋转；同时，第五齿轮212在驱动齿轮201正转状态下能够带动所述第六齿轮 213同向旋转，因此，第六齿轮213能够带动感光鼓驱动部214旋转，因此感光鼓开始工作，由此，可使纸张依次通过拾纸单元104、显影单元105、定影单元106和排纸单元107完成打印工作。
其中，第三单向传动组件211也以为单向离合器或游星齿轮。当第三单向传动组件211为单向离合器时，所述第五齿轮212可用于在朝第三方向旋转过程中与第六齿轮213相接合以带动第六齿轮213同向旋转，并在朝与第三方向相反的方向旋转过程中与第六齿轮213相脱离，第五齿轮212与驱动齿轮201相连，在驱动齿轮201正转时可带动第五齿轮212朝第三方向旋转，由此使第五齿轮212与第六齿轮213相接合以带动第六齿轮213同向旋转，从而使第六齿轮213带动感光鼓驱动部214旋转；在驱动齿轮201反转时可带动第五齿轮212朝与第三方向相反的方向旋转，使第五齿轮212与第六齿轮213相脱离，此时第五齿轮212无法带动第六齿轮213旋转，从而第六齿轮213不会带动感光鼓驱动部214旋转。当第三单向传动组件211为游星齿轮时(如图5所示)，在驱动齿轮201正转过程中，驱动装置229可驱动第五齿轮212与驱动齿轮201相连接，使驱动齿轮201能够带动第五齿轮212旋转，第五齿轮212带动第六齿轮213同向旋转，从而使第六齿轮213带动感光鼓驱动部214旋转；在驱动齿轮201反转过程中，驱动装置229可驱动第五齿轮212与驱动齿轮201相脱离，使驱动齿轮201不能带动第五齿轮212旋转，从而使第六齿轮213不能带动感光鼓驱动部214旋转。另外，本实施例中所提及的第三方向、第一方向和第二方向可为同一方向也可不为同一方向。
请参考图6，本实施例中，优选的，第三单向传动组件211为多个，因此第六齿轮213也为多个，多个所述第六齿轮213能够依次连接，其中一个第五齿轮212能够与驱动齿轮201相连接。由此，当多个第六齿轮213依次连接，且其中一个第五齿轮212与驱动齿轮201相连接时，在驱动齿轮201正转过程中，能够带动与驱动齿轮201相连的第五齿轮212旋转，同时该第五齿轮212能够带动与该第五齿轮212同轴连接的第六齿轮213同向旋转，进而使该第六齿轮213能够带动其他第六齿轮213旋转，因此，能够带动多个感光鼓驱动部214旋转，而每个感光鼓 分别对应不同颜色的显影剂，以实现彩色打印且节省图像形成装置的内部空间。当然，多个第五齿轮212可均与驱动齿轮201直接啮合或通过传动齿轮连接。
在本实施例的基础上，驱动系统还可包括第四单向传动组件，包括同轴连接的第七齿轮和第八齿轮，所述第七齿轮用于在驱动齿轮201反转状态下接受所述驱动齿轮201的驱动力并带动所述第八齿轮同向旋转，并在所述驱动齿轮201正转状态下无法带动第八齿轮旋转；第八齿轮与感光鼓驱动部214连接，用于驱动所述感光鼓驱动部214旋转。其中，与第八齿轮相连的感光鼓驱动部214对应黑色显影剂，而多个第三单向传动组件211中的第六齿轮213所连接的感光鼓驱动部214对应彩色显影剂，由此可在驱动齿轮201正转过程中进行彩色成像，而在驱动齿轮201反转过程中进行黑色成像。
本实施例中，优选的，第一齿轮203为内齿轮，所述第二齿轮204为外齿轮，所述第三齿轮206为内齿轮，所述第四齿轮207为外齿轮；所述第一齿轮203和第三齿轮206分别和所述驱动齿轮201相啮合，所述第二齿轮204和所述第四齿轮207相啮合。其中，外齿轮和内齿轮的内外关系是指：外齿轮在垂直于轴向的平面上的投影位于内齿轮在该平面上的投影的外侧，即内齿轮的直径小于同轴连接的外齿轮的直径。由此，驱动齿轮201、第一单向传动组件202和第二单向传动组件205之间无需其他传动齿轮即可实现连接，节省了空间，简化了结构。
本实施例中，优选的，第一单向传动组件202还包括第一离合器系统，所述第一离合器系统与所述第一齿轮203和第二齿轮204连接，所述第一离合器系统用于在所述第一齿轮203朝所述第一方向旋转过程中使所述第一齿轮203与所述第二齿轮204相接合，并在所述第一齿轮203朝与所述第一方向相反的方向旋转过程中使所述第一齿轮203与所述第二齿轮204相脱离；所述第二单向传动组件205还包括第二离合器系统，所述第二离合器系统与所述第三齿轮206和第四齿轮207连接，所述第二离合器系统用于在所述第三齿轮206朝所述第二方向旋转过程中使所述第三齿轮206与所述第四齿轮207相接合，并在所述第三齿轮206朝与所述第二方向相反的方向旋转过程中使所述第三齿轮206与所述第四 齿轮207相脱离。由此，通过设置第一离合器系统和第二离合器系统，可以使第一单向传动组件202和第二单向传动组件205结构简单且传动可靠，当然第一齿轮203和第二齿轮204之间以及第三齿轮206和第四齿轮207之间也可通过电动锁件进行接合或分离。
请参考图7，本实施例中，优选的，所述第一离合器系统包括第一转轴215、第一弹性复位装置(未示出)、第一突起部216和第二突起部219，所述第一齿轮203和第二齿轮204套设在所述第一转轴215上，并能够相对于所述第一转轴215转动；所述第一齿轮203的第一表面朝向所述第二齿轮204，所述第一突起部216设在所述第一齿轮203的第一表面上，所述第一突起部216沿所述第一齿轮203的轴向突出于所述第一齿轮203的第一表面设置，所述第一突起部216包括第一平面217和第二平面218，所述第一平面217垂直于所述第一齿轮203的第一表面并至少沿所述第一齿轮203的径向延伸，所述第二平面218的第一端与所述第一平面217的顶部连接，所述第二平面218的第二端与所述第一齿轮203的第一表面连接，所述第二平面218与所述第一平面217之间形成设定角度；所述第二齿轮204的第一表面朝向所述第一齿轮203，所述第二突起部219设在所述第二齿轮204的第一表面上，所述第二突起部219沿所述第二齿轮204的轴向突出于所述第二齿轮204的第一表面设置，所述第二突起部219包括第三平面220和第四平面221，所述第三平面220垂直于所述第二齿轮204的第一表面并至少沿所述第二齿轮204的径向延伸，所述第四平面221的第一端与所述第三平面220的顶部连接，所述第四平面221的第二端与所述第二齿轮204的第一表面连接，所述第四平面221与所述第三平面220之间形成设定角度；所述第一弹性复位装置设置在所述第一齿轮203和第二齿轮204之间，用于使所述第一齿轮203和第二齿轮204之间保持设定距离，以使所述第一突起部216和第二突起部219能够相接触，所述第一表面和第三表面用于在所述第一齿轮203朝所述第一方向旋转过程中相接合，以使所述第一齿轮203能够带动所述第二齿轮204同向旋转，所述第二平面218和第四平面221用于在所述第一齿轮203朝与所述第一方向相反的方向旋转过程中相对滑动，以使所述第一齿轮203和所述第二齿轮204相脱离。 由此，使第一单向传动组件202结构简单、传动可靠。
本实施例中，优选的，第二离合器系统包括第二转轴222、第二弹性复位装置(未示出)、第三突起部223和第四突起部226，所述第三齿轮206和第四齿轮207套设在所述第二转轴222上，并能够相对于所述第二转轴222转动；所述第三齿轮206的第一表面朝向所述第四齿轮207，所述第三突起部223设在所述第三齿轮206的第一表面上，所述第三突起部223沿所述第三齿轮206的轴向突出于所述第三齿轮206的第一表面设置，所述第三突起部223包括第五平面224和第六平面225，所述第五平面224垂直于所述第三齿轮206的第一表面并至少沿所述第三齿轮206的径向延伸，所述第六平面225的第一端与所述第五平面224的顶部连接，所述第六平面225的第二端与所述第三齿轮206的第一表面连接，所述第六平面225与所述第五平面224之间形成设定角度；所述第四齿轮207的第一表面朝向所述第三齿轮206，所述第四突起部226设在所述第四齿轮207的第一表面上，所述第四突起部226沿所述第四齿轮207的轴向突出于所述第四齿轮207的第一表面设置，所述第四突起部226包括第七平面227和第八平面228，所述第七平面227垂直于所述第四齿轮207的第一表面并至少沿所述第四齿轮207的径向延伸，所述第八平面228的第一端与所述第七平面227的顶部连接，所述第八平面228的第二端与所述第四齿轮207的第一表面连接，所述第八平面228与所述第七平面227之间形成设定角度；所述第二弹性复位装置设置在所述第三齿轮206和第四齿轮207之间，用于使所述第三齿轮206和第四齿轮207之间保持设定距离，以使所述第三突起部223和第四突起部226能够相接触，所述第五表面和第七表面用于在所述第三齿轮206朝第二方向旋转过程中相接合，以使所述第三齿轮206能够带动所述第四齿轮207同向旋转，所述第六平面225和第八平面228用于在所述第三齿轮206朝与所述第二方向相反的方向旋转过程中相对滑动，以使所述第三齿轮206与所述第四齿轮207相脱离。由此，使第二单向传动组件205结构简单、传动可靠。
本实施例中，优选的，第一离合器系统和/或第二离合器系统为滚针离合器系统。由此可使第一单向传动组件202和/或第二单向传动组件 205结构简单、传动可靠。
另外，第三单向传动组件211也可采用和上述第一单向传动组件202和第二单向传动组件205类似的结构。
本发明实施例提供一种图像形成装置，包括本发明任意实施例所述的驱动系统和马达，所述马达与所述驱动齿轮连接，用于驱动所述驱动齿轮旋转。
本实施例中，可将第一齿轮203与排纸单元驱动部208连接，将第二齿轮204与定影单元驱动部209连接，将第四齿轮207与双面打印单元驱动部210连接。由此，当需要对纸张的正面进行打印时，可由马达驱动驱动齿轮201正转，驱动齿轮201带动第一齿轮203朝第一方向旋转，此时第一齿轮203和第二齿轮204相接合，因此第一齿轮203带动第二齿轮204同向旋转，因此第一齿轮203能够带动排纸单元驱动部208正转，第二齿轮204能够带动定影单元驱动部209正转；同时，驱动齿轮201带动第三齿轮206朝与第二方向相反的方向旋转，此时第三齿轮206和第四齿轮207相脱离，即第三齿轮206无法带动第四齿轮207同向旋转，而第四齿轮207在第二齿轮204的带动下朝第二方向旋转，因此第四齿轮207能够带动双面打印单元驱动部210正转，此时，纸张能够依次通过拾纸单元104、显影单元105、定影单元106和排纸单元107完成正面打印。当需要对纸张的反面进行打印时，可由马达驱动驱动齿轮201反转，驱动齿轮201带动第三齿轮206朝第二方向旋转，此时第三齿轮206和第四齿轮207相接合，因此第三齿轮206带动第四齿轮207同向旋转，第四齿轮207依然能够带动双面打印单元驱动部210正转；同时，驱动齿轮201带动第一齿轮203朝与第一方向相反的方向旋转，此时第一齿轮203和第二齿轮204相脱离，即第一齿轮203无法带动第二齿轮204同向旋转，而第二齿轮204在第四齿轮207的带动下朝第一方向旋转，因此第二齿轮204依然能够带动定影单元驱动部209正转，而第一齿轮203则能够带动排纸单元驱动部208反转，此时，排纸单元107能够将已经完成正面打印纸张传送至双面打印单元108处，由双面打印单元108将纸张翻转后传送至显影单元105，纸张在经过显影单元105、定影单元106和排纸单元107后，便能完成反面打印。由此，图 像形成装置只需要设置一个马达即可实现双面打印功能，简化了图像形成装置的结构、降低了图像形成装置的成本。由于本发明实施例提供的驱动系统，在接受马达在正反转驱动力的情况下，驱动系统中第一齿轮203和第三齿轮206会根据马达转向的变化而进行正转或反转，而无论马达在正转还是反转第二齿轮204和第四齿轮207均会朝同一方向旋转，即第二齿轮204和第四齿轮207始终输出一个恒定方向的力，因此用户可以在设计打印机驱动的时候，根据需要自行设计待驱动的目标，例如：可将第二齿轮204与双面打印单元驱动部210连接，而将第四齿轮207与定影单元驱动部209连接，还可将第一齿轮203、第二齿轮204和第四齿轮207分别和其他装置的驱动部连接，以实现一个马达在带动一些装置单向旋转的同时能够带动另一些装置双向旋转的效果。
本实施例中，优选的，图像形成装置还包括：排纸单元107，与所述排纸单元驱动部208连接；定影单元106，与所述定影单元驱动部209连接；双面打印单元108，与所述双面打印单元驱动部210连接。由于第一齿轮203能够带动排纸单元驱动部208双向旋转，因此排纸单元107能够双向旋转以实现由第一路径101排纸或将纸张送至第二路径102，而第二齿轮204和第四齿轮207能够始终带动定影单元驱动部209和双面打印单元驱动部210朝一个方向旋转，因此使得定影单元106和双面打印单元108始终朝一个方向旋转进而完成打印工作，由此图像形成装置只需要设置一个马达即可实现双面打印功能，简化了图像形成装置的结构、降低了图像形成装置的成本。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (11)

  1. 一种驱动系统，其特征在于包括：
    驱动齿轮，用于正转或反转；
    第一单向传动组件，包括同轴连接的第一齿轮和第二齿轮，所述第一齿轮用于在朝第一方向旋转过程中与所述第二齿轮相接合以带动所述第二齿轮同向旋转，并在朝与所述第一方向相反的方向旋转过程中与所述第二齿轮相脱离；
    第二单向传动组件，包括同轴连接的第三齿轮和第四齿轮，所述第三齿轮用于在朝第二方向旋转过程中与所述第四齿轮相接合以带动所述第四齿轮同向旋转，并在朝与所述第二方向相反的方向旋转过程中与所述第四齿轮相脱离；
    其中，所述第一齿轮和第三齿轮与所述驱动齿轮相连接，所述第二齿轮和所述第四齿轮相连接；
    所述第一齿轮用于在所述驱动齿轮正转状态下接受所述驱动齿轮的驱动力而朝第一方向旋转并带动所述第二齿轮同向旋转，所述第四齿轮用于在所述驱动齿轮正转状态下接受所述第二齿轮的驱动力而朝第二方向旋转，所述第三齿轮用于在所述驱动齿轮正转状态下接受所述驱动齿轮的驱动力而朝与所述第二方向相反的方向旋转；
    所述第三齿轮用于在所述驱动齿轮反转状态下接受所述驱动齿轮的驱动力而朝所述第二方向旋转并带动所述第四齿轮同向旋转，所述第二齿轮用于在所述驱动齿轮反转状态下接受所述第四齿轮的驱动力而朝所述第一方向旋转，所述第一齿轮用于在所述驱动齿轮反转状态下接受所述驱动齿轮的驱动力而朝与所述第一方向相反的方向旋转。
  2. 根据权利要求1所述的驱动系统，其特征在于：
    所述第一齿轮与排纸单元驱动部连接，用于驱动所述排纸单元驱动部旋转；
    所述第二齿轮与定影单元驱动部连接，用于驱动所述定影单元驱动部旋转；
    第四齿轮与双面打印单元驱动部连接，用于驱动所述双面打印单元驱动部旋转。
  3. 根据权利要求2所述的驱动系统，其特征在于，还包括第三单向传动组件，包括同轴连接的第五齿轮和第六齿轮，所述第五齿轮用于在驱动齿轮正转状态下接受所述驱动齿轮的驱动力并带动所述第六齿轮同向旋转，并在所述驱动齿轮反转状态下无法带动所述第六齿轮旋转；
    所述第六齿轮与感光鼓驱动部连接，用于驱动所述感光鼓驱动部旋转。
  4. 根据权利要求3所述的驱动系统，其特征在于，所述第三单向传动组件为多个，多个所述第六齿轮能够依次连接，其中一个所述第五齿轮能够与所述驱动齿轮相连接。
  5. 根据权利要求1-4中任一所述的驱动系统，其特征在于：
    所述第一齿轮为内齿轮，所述第二齿轮为外齿轮，所述第三齿轮为内齿轮，所述第四齿轮为外齿轮；
    所述第一齿轮和第三齿轮分别和所述驱动齿轮相啮合，所述第二齿轮和所述第四齿轮相啮合。
  6. 根据权利要求1所述的驱动系统，其特征在于：
    所述第一单向传动组件还包括第一离合器系统，所述第一离合器系统与所述第一齿轮和第二齿轮连接，所述第一离合器系统用于在所述第一齿轮朝所述第一方向旋转过程中使所述第一齿轮与所述第二齿轮相接合，并在所述第一齿轮朝与所述第一方向相反的方向旋转过程中使所述第一齿轮与所述第二齿轮相脱离；
    所述第二单向传动组件还包括第二离合器系统，所述第二离合器系统与所述第三齿轮和第四齿轮连接，所述第二离合器系统用于在所述第三齿轮朝所述第二方向旋转过程中使所述第三齿轮与所述第四齿轮相接合，并在所述第三齿轮朝与所述第二方向相反的方向旋转过程中使所述第三齿轮与所述第四齿轮相脱离。
  7. 根据权利要求6所述的驱动系统，其特征在于：
    所述第一离合器系统包括第一转轴、第一弹性复位装置、第一突起部和第二突起部，所述第一齿轮和第二齿轮套设在所述第一转轴上，并能够相对于所述第一转轴转动；
    所述第一齿轮的第一表面朝向所述第二齿轮，所述第一突起部设在所述第一齿轮的第一表面上，所述第一突起部沿所述第一齿轮的轴向突出于所述第一齿轮的第一表面设置，所述第一突起部包括第一平面和第二平面，所述第一平面垂直于所述第一齿轮的第一表面并至少沿所述第一齿轮的径向延伸，所述第二平面的第一端与所述第一平面的顶部连接，所述第二平面的第二端与所述第一齿轮的第一表面连接，所述第二平面与所述第一平面之间形成设定角度；
    所述第二齿轮的第一表面朝向所述第一齿轮，所述第二突起部设在所述第二齿轮的第一表面上，所述第二突起部沿所述第二齿轮的轴向突出于所述第二齿轮的第一表面设置，所述第二突起部包括第三平面和第四平面，所述第三平面垂直于所述第二齿轮的第一表面并至少沿所述第二齿轮的径向延伸，所述第四平面的第一端与所述第三平面的顶部连接，所述第四平面的第二端与所述第二齿轮的第一表面连接，所述第四平面与所述第三平面之间形成设定角度；
    所述第一弹性复位装置设置在所述第一齿轮和第二齿轮之间，用于使所述第一齿轮和第二齿轮之间保持设定距离，以使所述第一突起部和第二突起部能够相接触，所述第一表面和第三表面用于在所述第一齿轮朝所述第一方向旋转过程中相接合，以使所述第一齿轮能够带动所述第二齿轮同向旋转，所述第二平面和第四平面用于在所述第一齿轮朝与所述第一方向相反的方向旋转过程中相对滑动，以使所述第一齿轮和所述第二齿轮相脱离。
  8. 根据权利要求6所述的驱动系统，其特征在于：
    所述第二离合器系统包括第二转轴、第二弹性复位装置、第三突起部和第四突起部，所述第三齿轮和第四齿轮套设在所述第二转轴上，并能够相对于所述第二转轴转动；
    所述第三齿轮的第一表面朝向所述第四齿轮，所述第三突起部设在所述第三齿轮的第一表面上，所述第三突起部沿所述第三齿轮的轴向突出于所述第三齿轮的第一表面设置，所述第三突起部包括第五平面和第六平面，所述第五平面垂直于所述第三齿轮的第一表面并至少沿所述第三齿轮的径向延伸，所述第六平面的第一端与所述第五平面的顶部连 接，所述第六平面的第二端与所述第三齿轮的第一表面连接，所述第六平面与所述第五平面之间形成设定角度；
    所述第四齿轮的第一表面朝向所述第三齿轮，所述第四突起部设在所述第四齿轮的第一表面上，所述第四突起部沿所述第四齿轮的轴向突出于所述第四齿轮的第一表面设置，所述第四突起部包括第七平面和第八平面，所述第七平面垂直于所述第四齿轮的第一表面并至少沿所述第四齿轮的径向延伸，所述第八平面的第一端与所述第七平面的顶部连接，所述第八平面的第二端与所述第四齿轮的第一表面连接，所述第八平面与所述第七平面之间形成设定角度；
    所述第二弹性复位装置设置在所述第三齿轮和第四齿轮之间，用于使所述第三齿轮和第四齿轮之间保持设定距离，以使所述第三突起部和第四突起部能够相接触，所述第五表面和第七表面用于在所述第三齿轮朝第二方向旋转过程中相接合，以使所述第三齿轮能够带动所述第四齿轮同向旋转，所述第六平面和第八平面用于在所述第三齿轮朝与所述第二方向相反的方向旋转过程中相对滑动，以使所述第三齿轮与所述第四齿轮相脱离。
  9. 根据权利要求6所述的驱动系统，其特征在于，所述第一离合器系统和/或第二离合器系统为滚针离合器系统。
  10. 一种图像形成装置，其特征在于，包括根据权利要求1-9中任一所述的驱动系统和马达，所述马达与所述驱动齿轮连接，用于驱动所述驱动齿轮旋转。
  11. 根据权利要求10所述的图像形成装置，其特征在于，还包括：
    排纸单元，与所述排纸单元驱动部连接；
    定影单元，与所述定影单元驱动部连接；
    双面打印单元，与所述双面打印单元驱动部连接。
PCT/CN2016/081018 2015-08-25 2016-05-04 驱动系统及图像形成装置 Ceased WO2017032041A1 (zh)

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