JP3642503B2 - Image reading apparatus, image forming apparatus, and developing magazine used for image forming apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image reading apparatus, an image forming apparatus, and a developing magazine used in the image forming apparatus.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in an image reading apparatus or an image forming apparatus having an image reading unit that reads an image of a document, each unit is locked to prevent a failure caused by a scanning unit moving in the apparatus during transportation.
[0003]
Such image reading apparatuses and image forming apparatuses include, for example, one in which a contact glass on which an original is placed is fixedly provided on the upper surface of the apparatus housing, and such an image reading apparatus or image forming apparatus is provided. As the image reading unit, an image reading unit having two scanning units under a contact glass is generally widely used. The scanning unit guides the reflected light of the document to an imaging optical system fixedly provided in the apparatus, and is provided so as to be movable along the contact glass. The movable scanning unit is fixed by a lock member so as not to move during transportation.
[0004]
Further, for example, some image forming apparatuses are detachably attached with a developing magazine storing toner or the like. The opening for discharging the toner formed in the toner case provided in such a developing magazine is closed with a seal before use.
[0005]
[Problems to be solved by the invention]
The user must remove these locking members before use. However, the user may operate the image forming apparatus while the scanning unit is fixed by the lock member. In this case, a motor that is a driving source for applying a driving force to the scanning unit is burned. Inconvenience occurs.
[0006]
In addition, when replacing the development magazine, the user may install the development magazine without forgetting to remove the seal that closes the opening of the toner case. In this case, since the toner is not supplied, it is not printed on the paper, and the user may mistakenly consider a failure or the like.
[0007]
An object of the present invention is to provide an image reading apparatus and an image forming apparatus that can prevent a failure caused by a user not releasing the fixing of a scanning unit before use.
[0008]
Another object of the present invention is to obtain a developing magazine that can prevent a user from forgetting to remove the lock member .
[0009]
[Means for Solving the Problems]
An image reading apparatus according to a first aspect of the present invention includes an image reading unit that includes a pressure plate that presses a document placed on a contact glass, and an image reading unit that includes a scanning unit that moves along the contact glass and reads an image of the document. The reading apparatus includes a wire that is connected to a lock pin that fixes the scanning unit and is stretched over the pressure plate.
[0010]
Therefore, the pressure plate is prevented from being lifted while the scanning unit is fixed.
[0011]
According to a second aspect of the present invention, there is provided an image forming apparatus comprising: a pressure plate that presses down a document placed on a contact glass; an image reading unit that includes a scanning unit that moves along the contact glass; An image forming apparatus having an image forming unit for forming the image read in a step further includes a wire that is connected to a lock pin that fixes the scanning unit and is stretched over the pressure plate.
[0012]
Therefore, the pressure plate is prevented from being lifted while the scanning unit is fixed.
[0013]
According to a third aspect of the present invention, there is provided an image reading apparatus comprising: a scanning unit that moves along the contact glass; and an image reading unit that reads an image of a document placed on the contact glass. A wire connected to a lock pin to be fixed; and a tag attached to the wire and covering a power plug of the image reading apparatus.
[0014]
Therefore, it is possible to prevent the power source from being connected while the scanning unit is fixed.
[0015]
According to a fourth aspect of the present invention, there is provided an image forming apparatus including a scanning unit that moves along a contact glass, an image reading unit that reads an image of a document placed on the contact glass, and the image read on a printing paper. An image forming apparatus having an image forming unit to be formed includes a wire connected to a lock pin for fixing the scanning unit, and a tag attached to the wire and covering a power plug of the image reading apparatus.
[0016]
Therefore, it is possible to prevent the power source from being connected while the scanning unit is fixed.
[0017]
According to a fifth aspect of the present invention, there is provided an image reading apparatus comprising: a scanning unit that moves along the contact glass; and an image reading unit that reads an image of a document placed on the contact glass. A seal member coupled to a lock pin to be fixed; and a tag attached to the seal member and covering a power switch of the image reading apparatus.
[0018]
Therefore, it is possible to prevent the power source from being connected while the scanning unit is fixed.
[0019]
According to a sixth aspect of the present invention, there is provided an image forming apparatus comprising: a scanning unit that moves along the contact glass; an image reading unit that reads an image of a document placed on the contact glass; and the image read on a printing paper. An image forming apparatus having an image forming unit to be formed includes a wire connected to a lock pin for fixing the scanning unit, and a tag attached to the wire and covering a power switch of the image reading apparatus.
[0020]
Therefore, it is possible to prevent the power source from being connected while the scanning unit is fixed.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
An image reading apparatus and an image forming apparatus provided with a lock member of the present invention will be described based on FIGS. 1 and 2 as an embodiment of the image forming apparatus. The image forming apparatus 1 includes a first scanning unit 3 and a second scanning unit 4 below the contact glass 2. The first scanning unit 3 and the second scanning unit 4 move along the contact glass 2 in order to guide the reflected light of the document 6 to the imaging optical system 5 fixedly provided in the image forming apparatus 1. .
[0026]
The first scanning unit 3 is movably supported at a position facing the contact glass 2 on which the document 6 is placed. The first scanning unit 3 includes a light source 7 that irradiates light to the document 6 through the contact glass 2, and the document 6. And a mirror 8 for guiding the reflected light to the second scanning unit 4. An imaging optical system 5 is fixedly provided below the scanning path of the first scanning unit 3.
[0027]
The second scanning unit 4 has two mirrors 9 and 10 and moves in the same direction as the first scanning unit 3 and at a scanning speed that is ½ of the scanning speed of the first scanning unit 3. These mirrors 9 and 10 have an internal angle of 90 degrees. Of the two mirrors 9, 10, one mirror 9 faces the mirror 8 of the first scanning unit 3, and the other mirror 10 faces the imaging optical system 5.
[0028]
A movable mirror group 13 having two mirrors 11 and 12 is provided at a position facing the second scanning unit 4 with the imaging optical system 5 interposed therebetween. The mirrors 11 and 12 have an inner angle of 90 degrees, and one of the mirrors 12 is positioned on the optical path of the reflected light of the document 6 that has passed through the imaging optical system 5. A fixed mirror 15 that guides the reflected light to the photosensitive member 14 is provided on the optical path of the reflected light of the document 6 that is transmitted through the imaging optical system 5 and reflected by the mirrors 11 and 12.
[0029]
On the contact glass 2, a pressure plate 16 that holds the document 6 is provided.
[0030]
Here, the first scanning unit 3 and the second scanning unit 4 are fixed so as not to move in the image forming apparatus 1 during transportation until the image forming apparatus 1 reaches the user. The first scanning unit 3 is fixed by a lock pin 17 at a position brought close to the right side wall indicated by an imaginary line in FIG. 1, and the second scanning unit 4 is fixed by a lock pin 18 at a starting point near the left side wall shown in FIG. The This state is shown in a plan view in FIG.
[0031]
In this embodiment, as the user does not forget to remove the lock pin 17, 18 prior to use of the image forming apparatus 1, connects the lock pin 17 and the lock pin 18 in word ear 19 passed on the pressure plate 16 Then, the tag 20 is attached to the wire 19. In the tag 20, a sentence for informing the user that the lock pins 17 and 18 at both ends of the wire 19 must be removed before the use of the image forming apparatus 1 is started.
[0032]
In such a configuration, before using the image forming apparatus 1, the user removes the lock pins 17 and 18 together with the wire 19 and the tag 20 and releases the fixation of the first and second scanning units 3 and 4.
[0033]
When the image forming apparatus 1 is operated, the first scanning unit 3 moves from the starting point indicated by a solid line in FIG. 1 to the right in FIG. 1 along the contact glass 2 while irradiating the document 6 with light. The reflected light of the document 6 is guided from the mirror 8 of the first scanning unit 3 to the mirror 9 of the second scanning unit 4, from the mirror 9 to the mirror 10, and from the mirror 10 to the imaging optical system 5.
[0034]
Here, since the scanning speed of the first scanning unit 3 and the scanning speed of the second scanning unit 4 are set to 2: 1, the contact glass 2 is connected via the first and second scanning units 3 and 4. The optical path length to the image optical system 5 is constant even if the first and second scanning units 3 and 4 are moved.
[0035]
Then, the reflected light of the document 6 that has passed through the imaging optical system 5 is guided to the photoreceptor 14 by the movable mirror group 13 and the fixed mirror 15.
[0036]
When the movable mirror group 13 is moved, the optical path length from the imaging optical system 5 to the photoconductor 14 changes, and the magnification of the electrostatic latent image formed on the photoconductor 14 with respect to the image of the original 6 changes.
[0037]
In the present embodiment, by connecting the lock pins 17 and 18 with the wire 19, it is possible to alert the user and prevent the user from overlooking the lock pins 17 and 18. Can be used to prevent the user from using the image forming apparatus 1 without removing the lock pins 17, 18. Further, by attaching a tag 20 to the wire 19, the user can use the wire before starting the use of the image forming apparatus 1. The user can be informed that the lock pins 17 and 18 at both ends of 19 must be removed.
[0038]
In this embodiment, the tag 20 and the wire 19 are positioned on the pressure plate 16. However, in the implementation, the tag 20 attached to the wire 19 is used to connect a power plug (not shown) of the image forming apparatus 1 or A power switch (not shown) may be covered. In this case, since the image forming apparatus 1 cannot be used unless the tag 20 and the wire 19 are removed, it is possible to alert the user to the lock pins 17 and 18 as in the above-described embodiment. it can.
[0039]
Next, an embodiment of a developing magazine used in the image forming apparatus of the present invention will be described with reference to FIGS. The same parts as those described in the embodiment of the image forming apparatus are denoted by the same reference numerals, and description thereof is omitted. First, FIG. 3 is a front view showing a state in which the image forming apparatus 1 to which the developing magazine 21 of the present embodiment is mounted is opened.
[0040]
As shown in FIG. 3, the image forming apparatus 1 includes an upper main body 22 and a lower main body 23, and the upper main body 22 and the lower main body 23 are rotatable at a fulcrum 24. When the image forming apparatus 1 is opened as shown in FIG. 3, the upper main body 22 is supported by the gas damper 25. The upper body 22 is provided with a support frame 26 for supporting the developing magazine 21. The lower body 23 is provided with a paper feed tray 27.
[0041]
FIG. 4 is a longitudinal front view showing the developing magazine 21 mounted on the support frame 26. A guide rail 28 is formed on the support frame 26 from the front side to the back side of the image forming apparatus 1. The developing magazine 21 is formed with a rail receiver 29 that is a fitting portion that fits into the support frame 26 and is inserted into the guide rail 28.
[0042]
Here, the photosensitive member 14 is separate from the developing magazine 21 and is attached to the support frame 26 before the developing magazine 21 is mounted. The developing magazine 21 has a shape surrounding the photoconductor 14, and supplies toner to the toner case 30 containing the toner, a developer case 31 containing the developer, and the photoconductor 14. A developing roller 32 that develops the latent image and a cleaning unit 33 that cleans the photoreceptor 14 are provided. The cleaning unit 33 includes a cleaning blade 34 that scrapes off toner remaining on the photoconductor 14 and a collection roller 35 that collects the scraped toner and the like.
[0043]
Further, the developing magazine 21 is provided with a shutter 36 that prevents the photosensitive member 14 from being exposed and toner from spilling when the image forming apparatus 1 is opened. Further, as shown in FIG. 5, in order to accurately position the developing roller 32 with respect to the photoreceptor 14, a positioning pin 37, which is a fitting portion that fits into the support frame 26, is located at the back of the rotation shaft 38 of the developing roller 32. The front end frame 40 of the developing magazine 21 is provided with a pin 39 that is provided at the end portion on the side and that fits in the axial center of the photosensitive member 14.
[0044]
A gear 41 that is a power transmission unit that transmits a driving force from a driving source (not shown) is attached to the rotation shaft 38 of the developing roller 32.
[0045]
When the developing magazine 21 is not used, the openings of the toner case 30 and the developer case 31 are closed by seals 42 and 43, respectively (see FIG. 4). The seals 42 and 43 are pulled out from a groove (not shown) formed in the front frame 40 and turned to the upper surface 44, and their tips are attached to the back side of the upper surface 44 with a tag 45 ( (See FIG. 5).
[0046]
Here, the seals 42 and 43 are provided with a sufficient length so that the seals 42 and 43 are loosened in the developing magazine 21. Further, the margin length of the seal 42 is longer than the margin length of the seal 43.
[0047]
The tag 45 is rotated from the back end portion of the upper surface 44 to the back surface side, and covers the positioning pin 37 and the gear 41 protruding to the back surface side. Further, the tag 45 has a sentence informing the user that the seals 42 and 43 must be pulled out before the development magazine 21 is mounted on the support frame 26.
[0048]
In this way, since the positioning pin 37 remains covered unless the tag 45 is peeled off, the developing magazine 21 cannot be mounted on the support frame 26. Therefore, the user forgets to remove the seals 42 and 43. It is possible to prevent the development magazine 21 from being attached. Further, the opening of the toner case 30 and the developer case 31 is opened by peeling off the tag 45 and pulling out the seals 42 and 43. At this time, the seal 43 has a shorter margin than the seal 42. , Begins to peel off quickly. Therefore, the developer case 31 is opened before the toner case 30, and the force required to start peeling of the seals 42 and 43 is dispersed, so that the developer case 31 is easily peeled off.
[0049]
In the present embodiment, the toner case 30 and the developer case 31 are divided into two parts for storing the toner and the developer in the development magazine 21. It may be a developing magazine provided with one toner case in which component toner is stored.
[0050]
Further, in this embodiment, the tag 45 covers the positioning pin 37 that is the fitting portion and the gear 41 that is the power transmission portion, but in the implementation, the tag 45 covers the rail receiver 29 that is the fitting portion. The rail receiver 29 may not be inserted into the guide rail 28 while the tag 45 is still attached.
[0051]
【The invention's effect】
According to the first aspect of the present invention, since the wire connected to the lock pin for fixing the scanning unit and passed over the pressure plate is provided, it is impossible to lift the pressure plate while the scanning unit is fixed. Can be prevented from operating by operating the image reading apparatus with the lens fixed.
[0052]
In the invention according to claim 2, since the wire connected to the lock pin for fixing the scanning unit is provided on the pressure plate, it is impossible to lift the pressure plate while the scanning unit is fixed. Can be prevented from operating by operating the image forming apparatus while the image is fixed.
[0053]
According to the third aspect of the present invention, since the tag that covers the power plug of the image reading apparatus is attached to the wire to which the lock pin for fixing the scanning unit is connected, it is possible to prevent the power source from being connected while the scanning unit is fixed. Therefore, it is possible to prevent a failure by operating the image reading apparatus while the scanning unit is fixed.
[0054]
According to the fourth aspect of the present invention, since the tag that covers the power plug of the image forming apparatus is attached to the wire to which the lock pin for fixing the scanning unit is connected, it is possible to prevent the power source from being connected while the scanning unit is fixed. Therefore, it is possible to prevent failure by operating the image forming apparatus while the scanning unit is fixed.
[0055]
According to the fifth aspect of the present invention, since the tag that covers the power switch of the image reading apparatus is attached to the wire connected to the lock pin for fixing the scanning unit, it is possible to prevent the power source from being connected while the scanning unit is fixed. Therefore, it is possible to prevent a failure by operating the image reading apparatus while the scanning unit is fixed.
[0056]
According to the sixth aspect of the present invention, since the tag that covers the power switch of the image forming apparatus is attached to the wire to which the lock pin for fixing the scanning unit is connected, it is possible to prevent the power source from being connected while the scanning unit is fixed. Therefore, it is possible to prevent failure by operating the image forming apparatus while the scanning unit is fixed.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional front view showing a schematic structure of an image reading unit included in an image forming apparatus of the present invention.
FIG. 2 is a plan view showing an embodiment of an image forming apparatus.
FIG. 3 is a front view showing a state in which the image forming apparatus to which the embodiment of the developing magazine of the present invention is mounted is opened.
FIG. 4 is a longitudinal front view showing a development magazine mounted on a support frame.
5A is a plan view of a development magazine, and FIG. 5B is a right side view thereof.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Image forming apparatus 2 Contact glass 3, 4 Scan unit 16 Pressure plate 17, 18 Lock pin 19 Seal member 20 Tag 21 Developing magazine 30, 31 Toner case 32 Developing roller 37 Fitting part 42, 43 Seal 45 Tag

Claims (6)

In an image reading apparatus having a pressure plate for pressing a document placed on a contact glass, and an image reading unit that includes a scanning unit that moves along the contact glass and reads an image of the document.
An image reading apparatus comprising: a wire connected to a lock pin for fixing the scanning unit and spanned on the pressure plate. A pressure plate for pressing a document placed on the contact glass; an image reading unit that includes a scanning unit that moves along the contact glass; and an image forming unit that forms the image read on the printing paper. In an image forming apparatus having
An image forming apparatus comprising: a wire connected to a lock pin for fixing the scanning unit and spanned on the pressure plate. In an image reading apparatus having an image reading unit that includes a scanning unit that moves along the contact glass and reads an image of a document placed on the contact glass.
A wire connected to a lock pin for fixing the scanning unit; a tag attached to the wire and covering a power plug of the image reading device;
An image reading apparatus comprising: In an image forming apparatus comprising an image reading unit that includes a scanning unit that moves along a contact glass and that reads an image of a document placed on the contact glass, and an image forming unit that forms the image read on a printing paper A wire connected to a lock pin for fixing the scanning unit, and a tag attached to the wire and covering a power plug of the image reading device,
An image forming apparatus comprising: In an image reading apparatus having an image reading unit that includes a scanning unit that moves along the contact glass and reads an image of a document placed on the contact glass.
A wire connected to a lock pin for fixing the scanning unit; a tag attached to the wire and covering a power switch of the image reading device;
An image reading apparatus comprising: In an image forming apparatus comprising an image reading unit that includes a scanning unit that moves along a contact glass and that reads an image of a document placed on the contact glass, and an image forming unit that forms the image read on a printing paper A wire connected to a lock pin for fixing the scanning unit; a tag attached to the wire and covering a power switch of the image reading device;
An image forming apparatus comprising:

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