JPH01105273A - Removing device for optical scanner or the like of laser printer or the like - Google Patents

Abstract

PURPOSE:To firmly position and attach the title optical scanner by providing a fitting member which is fitted to a fixing member for executing the positioning in the three-dimensional direction, positioning and attachment exactly the optical scanner to the main body and fixing it with a fitting screw formed by winding and installing an elastic member. CONSTITUTION:The device is provided with fixing members 18, 19 and 20a for executing the positioning in the three-dimensional direction when an optical scanner, etc., 80 is guided and slid to a main body 16 side of a laser printer, etc., and fitting members 80c, 80d and 80f which are fitted to said members and execute positioning are provided on the optical scanner, etc. Also, this device is constituted so that the main body 16 and the optical scanner, etc., 80 can be attached and detached by coupling and detaching both these members, and after the optical scanner, etc., 80 is positioned to the main body 16, an elastic member 22A is wound and interposed to a fitting member 22 for fixing said optical scanner, etc. In such a way, a shock from the outside is absorbed, and the position accuracy can always be held.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a unit configuration of an optical scanning device such as a laser printer, and particularly relates to a simple attachment/detachment device and position retention against external impact.

(Prior Art) FIG. 12 shows a cross-sectional view of a conventional laser printer, in which a photoreceptor 1. Transfer charger 2,
Charger 3, static elimination lamp 4, developing section 5, cleaning 6, toner cartridge 7, optical scanning device 8, paper feeding section 9, fixing section 10, paper ejection switching section 11, paper reversing device 12, paper ejection transport path 13, It is composed of paper feed cassettes 14a, 14b, paper ejection trays 15a, 15b, etc.

In the event of a paper ejection failure or the like, the paper ejection conveyance path 13 rotates in the direction of arrow (A) so that the fault can be dealt with.

In conventional laser printers, etc., the above-mentioned parts are arranged with priority given to function, so there is little consideration given to assembly, disassembly, or removal work such as parts replacement during manufacturing. The current situation is that there is no structure.

For example, in the case of the optical scanning device 8, if the positional relationship with the photoreceptor 1 is not accurate, recording will be affected, so conventionally the optical scanning device 8 has a structure that cannot be easily removed from the main body of the laser printer.

FIG. 13 shows a perspective external view of a conventional optical scanning device 8, showing the mounting structure to the main body and the parts arranged in the optical box 80.

The optical box 80 is fixed by at least four mounting screws 81 in a direction perpendicular to the optical scanning plane (main scanning direction) of the laser beam. Therefore, since the optical box must be removed in the height direction (B) of the optical box, a space greater than the height of the optical box is required. However, there are paper ejection trays 15a, 15b and other members in the height direction of the optical box, and because these are assembled from various directions, it is currently impossible to easily remove them.

Further, the planar area occupied within the laser printer main body is much larger than the lateral area, and attaching and detaching the optical box in the height direction is not a preferable method considering the arrangement of other components.

In addition, in FIG. 13, 4
An optical box 80 is attached with book mounting screws 81, and inside the box there is a rotating polygon mirror 83, a plurality of imaging lenses 84 arranged on the optical axis of the laser beam, a horizontal synchronization signal detection mirror 85, and a It includes an optical connector 87 connected to an optical fiber for extracting a reflected beam, a semiconductor laser 86, a lead connector 88 for the rotating polygon mirror 83, a dustproof glass 89, and the like. and optical connector 87. The connector 86c of the semiconductor laser 86, the lead connector 88 of the rotating polygon mirror, and the like are led out from the side wall of the optical box 80 in various directions. Although not shown in the drawings, the lid is fixed to the optical box with mounting screws to prevent external laser light from leaking from the inside and to prevent dust and the like from entering from the outside into the inside.

The functions of each part of the electrophotographic printer and copying machine described above are almost the same except for the optical system. The toner needs to be replenished, and it has units such as a photoreceptor, developer, cleaning, and charger that need to be replaced.

Recently, machines have been commercialized in which not only toner replenishment but also the photoconductor unit and cleaning unit can be replaced by the user. Particularly in printers, there is a strong demand for maintenance, and it is becoming a necessary condition that each replaceable unit can be easily replaced by the user.

An example of a conventional device of this type is a photoreceptor unit.

A plurality of image forming units, such as a developing unit and a cleaning unit, are integrally configured, and after a certain period of time has elapsed, these integrated units are replaced as a whole. The lifespan and wear and tear of each unit are
They differ depending on their characteristics and usage conditions, so even if a certain unit reaches the end of its lifespan and needs to be replaced, other units may still be fully usable. However, with such an integrated device, it is necessary to replace the unit at the same time as the unit that needs to be replaced earlier.
This has the disadvantage that the cost of parts is high each time it is replaced, and the running cost is inevitably high, which imposes a heavy burden on the user.

In addition, in order to eliminate the drawbacks of integrated units, some machines are designed to have separate replacement cycles for each unit, such as the cleaning unit, developing unit, and photoconductor unit, and to replace each unit individually. has been made into

The methods of exchange can be roughly divided into two types.

One method is to pull out each unit individually from the machine body and replace it. This method requires a mechanism for pulling out each unit, and the positions between each unit must be precisely positioned. Not only is it difficult to replace the unit because it is located in a narrow space, but when you take out the unit to be replaced, you may damage other units that are not due for replacement, or the toner may spill and stain the inside. The drawback was that it was easy.

Another method is to construct each unit as a working unit so that the entire unit can be pulled out of the machine body, and replace each unit from the pulled out unit. With this method, each unit is positioned with the precision necessary for operation inside the main body, and then pulled out as is, making it difficult to remove the unit yet, and preventing toner from spilling or damaging the photoreceptor. There were drawbacks.

(Problems to be Solved by the Invention) When the optical scanning device and the like are modularized to provide interchangeability, the present invention aims to avoid increasing the space required for attaching and detaching the optical box, and to make other exchanges possible. unit (photoreceptor, developing,
cleaning, etc.), and mechanical positional accuracy with respect to the photoreceptor was particularly important.

Furthermore, the above-mentioned positional accuracy needed to be able to withstand shocks caused by vibrations, drops, etc., and maintain the positional precision.

An object of the present invention is to absorb shocks from the outside and always maintain positional accuracy in a device in which the optical scanning device is modularized and can be easily attached and detached as described above.

(Structure and operation) In order to achieve the above-mentioned object, the present invention provides a method for guiding and sliding an optical scanning device etc. to the main body side of a laser printer etc.
A fixing member for positioning in the dimensional direction is provided, and a fitting member that fits with the fixing member for positioning is provided in the optical scanning device, etc., and the main body and the optical scanning device, etc. can be attached and detached by coupling and detaching these two members. The optical scanning device or the like configured as described above is characterized in that an elastic member is wound around a mounting member that fixes the optical scanning device or the like after positioning it on the main body.

According to the present invention, as shown in FIG. 4, the slide rib 80b provided on the optical box of the optical scanning device is guided by the main body guide rail 17, and the tip projection 8 of the optical box 80 is guided by the main body guide rail 17.
0f and the hole of the main body stay 20 in the lateral direction, and also in the front and rear fitting grooves 80c of the optical box.

80d and the front and rear studs 18 and 19 of the main body, positioning is performed in the three-dimensional direction in the height and longitudinal directions, and the elastic member 22A (spring) wound around the two mounting screws 22 provides elasticity. will be granted and fixed.

In the present invention, an optical scanning device is arranged above and below a photoreceptor in an image forming case, which will be described later.1 Both devices can be attached to and detached from the main body by sliding in a direction perpendicular to each other, using the above-mentioned mounting screw. Correct positional relationship is maintained.

A spring is used as the above-mentioned elastic member to prevent the mounting screw from loosening or shifting due to deformation in the event of vibration or dropping during transportation after the optical scanning device is mounted on the main body.

(Embodiment) FIG. 1 shows a perspective external view of an embodiment of the present invention, (1)
is the laser printer main body side, and (2) is the optical box 80 of the optical scanning device 8. The same numbers and symbols as in FIGS. Make it.

On the main body (1) side, one main body guide rail 17 is provided on the inner surface of the main body side plate 16 arranged at the width interval of the optical box 80. At each end of this guide rail, forward and backward studs 18.1 are placed slightly higher than the level of the rail.
9, the front is used for positioning in the height direction, and the rear is used for positioning in the height and longitudinal directions (slide direction (D)-(D')). Also, the main body stay 2 is placed between the two main body side plates 16.
0 is stretched, and at least one hole 20a for lateral positioning is provided. Furthermore, a screw hole plate 21 for the mounting screw 22 is provided on the inner surface of the main body side plate 16 behind the rear stud 19, that is, near the outside of the laser printer main body, and its setting position is slightly on the inner surface of the front side plate 80g of the optical box 80. It has a gap g□ (see Fig. 4).

Next, the optical box (2) is formed into a substantially rectangular shape for modularization, and has sliding ribs 80b on both side plates 80a that slide and are guided by the main body guide rail 17, and a front side on the main body side. It includes front and rear fitting grooves 80c and 80d that fit with the rear studs 18 and 19. Further, the tip side plate 80e has a protrusion 80f that fits into the hole 20a of the main body stay 20, and the front side plate 80g has an insertion hole 80h for the mounting screw 22 that is screwed into the screw hole plate 21 of the main body. There is. Further, a spring 22A is wound around the mounting screw 22, the detailed structure of which will be described later with reference to FIG. 4(3).

In addition, the connector 86c of the semiconductor laser 86, the horizontal synchronization signal detection optical connector 871, the lead connector 8 of the rotating polygon mirror
Connectors 86'c, 87'', and 88' corresponding to 8 are arranged on the front side plate 80g side and recessed from the plate surface, and when the connectors 86, 87, and 88 are connected to these, the housing of the connector 80g of the front side plate.

In the drawing, there are connectors 86'c and 87 on the north side of the front side plate 80.
'.

88' is provided, but it may also be provided on the distal end side plate 80e.

The above-mentioned members for positioning the main body side and the optical box include:
A member as shown in FIG. 2 can also satisfy the same function. FIG. 1 (1) shows a case where the main body guide rail 17 and the front and rear studs 18 and 19 are integrated and provided on the inner surface of the main body side plate 16. In the same figure (2), a flange 80d' is attached to the rear fitting groove 80d provided in the side plate 80a of the optical box 80 to facilitate engagement with the stand on the main body side, and to increase the holding area and stabilize it. It is intended to be fixed. Note that the front fitting groove 80c is also formed in the same manner. Next, in the same figure (3), there is a rear fitting groove 80 on the front side plate 80g of the optical box.
d is integrally formed and fixed to the rear stud 19 on the main body side by the elasticity of the spring 22A compressed by tightening the mounting screw 22, and the screw hole plate 21 on the main body side is omitted. In each of the above embodiments, an example of a scale whose design has been changed to enable positioning in three-dimensional directions has been described.

Next, FIG. 3 shows an example of the arrangement of internal parts of an optical box 80 used in the present invention, which is optimal for modularization. The housing has a nearly square shape, and a rotating polygon mirror 83 is arranged in the center near the front side plate aog, and a first mirror 83 is placed at a predetermined distance from the front side plate 80e in the horizontal scanning optical axis direction of the rotating polygon mirror 83. A mirror 84a, a second mirror 84b, a third mirror 84c, and an Fθ lens 84d are sequentially arranged toward the front side. Further, a fourth mirror 85 for horizontal synchronization signal detection is provided with a first mirror 84a and a second mirror 8 on one side plate 80a.
4b, which is placed between.

An optical fiber 87a is disposed on the reflection optical axis of the fourth mirror 85 and connected to an optical connector 87'. Further, the semiconductor laser 86 is arranged to face the rotating polygon mirror 83 in an oblique direction, and a first cylindrical lens 86a is provided on the laser optical axis so that the laser beam is focused on the rotating polygon mirror 83. . Further, the drive board 8 of the rotating polygon mirror 83
3a is arranged at a corner surrounded by the side plate 80a and the front side plate 80g. Furthermore, in order to prevent the laser beam from traveling straight and leaking out of the box when guiding it from the optical fiber 87a to the optical connector 87', a barrier 87b is provided to prevent the laser beam from traveling straight.

Next, the attachment and detachment of the optical box of the optical scanning device to the printer body will be explained using FIG. 4. The figure (1-) is a partial sectional view showing the state before the optical box is attached to the printer body, and the figure (2) is a partially sectional view showing the state after the optical box is attached. Slide rib 80 of optical box 80
b along the guide rail 17 of the printer body (in the direction of the arrow), the front and rear fitting grooves 8
0c and 80d fit into the front and rear studs 18 and 19 of the printer body, respectively. In this case, the front fitting groove 80c is arranged so as to have a gap g2 in the sliding direction between the front stud 18 and the front fitting groove 80c. This makes it easier to fit and bond the rear stud 19 for positioning in the sliding direction (arrow D=vertical direction) and the rear fitting groove 80d. Also, in the height direction (arrow B
) is determined by the stud diameter and the width of the fitting groove when the fitting grooves 80c and 80d are fitted into the front and rear studs 18 and 19, respectively. Further, in the lateral direction (perpendicular to the drawing: arrow E in FIG. 1(1)), the protrusion 80f at the tip fits into the hole 20a of the main body stay 20 and is positioned. That is, when the optical box 80 is attached to the printer main body, the three-dimensional directions of the vertical direction, the horizontal direction, and the height direction are automatically positioned by each member of the printer main body and the optical box. In this state, screw hole plate 21 of the printer body
As described above, there is a gap between the surface and the inner surface of the front side plate 80g on the printer body side. Therefore, since the mounting screw 22 is screwed into the screw hole of the hole plate 21 and is brought into close contact with the elasticity due to the compression of the spring 22A, the positioning state in the sliding direction is not affected by shocks such as drops and vibrations. It can be fixed without any problem.

'Figure 4 (3) shows an enlarged detailed view of the mounting screw 22 screwed into the screw hole plate 21 of Figure 4 (2), and shows the front side plate 80g of the optical box with the spring 22A wound around it. A washer 22B is inserted through the side plate and fitted into the other end of the mounting screw. This prevents the mounting screw from falling due to external vibrations, etc., and when it is screwed into the screw hole plate 21, it can be firmly fixed by the elasticity of the spring 22A.

Next, when removing the optical box from the printer body, loosen the mounting screw 22 in the opposite direction to the case when installing it, and slide the sliding rib of the optical box in the opposite direction (arrow D') along the guide rail of the printer body. If so, the printer will be in the state shown in FIG. 4 (1) and can be taken out from the printer body. Although the explanation will be given later, in FIG. 12, the discharge paper transport path 13 is rotated in the direction of the arrow (A), and the pull-out direction (D') of the optical scanning device 8 (optical box 80) is opened. , can be moved horizontally from the side of the printer.

Figure 5 shows the above-mentioned optical scanning device placed in the lower stage, and the direction of attachment and detachment from the printer main body is perpendicular to that of the optical scanning device ((
A perspective view of the image forming case 23 set at G')-(G)) is shown. This drawing shows only the mechanical parts necessary for attaching and detaching the image forming case 23. The printer main body has a front side plate 24 and a rear side plate 25, and the vertical direction (slide direction: (G) - ( G')) are arranged at length intervals. The front side plate 24 and the rear side plate 25 have studs 24a, 24b and 25a for positioning the image forming case 23,
25b is provided at a position that exactly corresponds to the photoreceptor 1 and the horizontal scanning surface of the optical scanning device. Further, the front side plate 24a has an opening 24c through which the image forming case 23 can enter and exit.

A drum drive shaft 25c for driving the photoreceptor (drum in this case) of the image forming case 23 is disposed on the rear side plate 25.

Further, a guide rail 26 is provided between the front side plate 24a and the rear side plate 25 for attaching and detaching the image forming case 23. The image forming case 23 includes the studs 24a, 24b and 25.
a, 25b in the height direction (arrow (B)), horizontal direction (arrow (E)) and vertical direction (arrow (G) - (G')
) three-dimensional positioning holes 23a, 23b and 23
a', 23b'. Furthermore, the image forming case 23 has ribs 23c on both side plates that engage with the support guide rails 26 of the printer body, and a handle 2 on the front side plate for putting in and taking out the drawer.
Equipped with 3d.

When attaching the image forming case described above to the printer body,
When the handle 23d is pushed in the sliding direction (G), the rib 23c along the support guide rail 26 of the main body slides.
Positioning holes 23a' and 23b' fit into the studs 25a and 25b of the rear side plate 25, and positioning holes 23a and 23b fit into the studs 24a and 25b of the front side plate 24.
is inserted, and three-dimensional positioning is performed. At this time, the drum drive shaft 25c is fitted into the hole 1a of the photoreceptor 1 of the image forming case, and the photoreceptor is connected to the drive source. In this way, when the handle 23d is held and pushed into the printer body, the image forming case is automatically positioned and the drive source for the photoreceptor is connected. Next, it can be easily taken out from the printer body by performing the opposite operation to the above.

Next, additional comments will be made regarding the optical scanning device, image forming case 23 (hereinafter referred to as drawer), etc. housed in the laser printer body described above.

FIG. 6 shows a perspective view of the laser printer shown in FIG. 12, and FIG. 7 shows a partial sectional view of the drawer.

As shown in FIGS. 6 and 7, the laser printer of this example has a drawer 23 slidably attached to one side of its main body by support guide rails 26, 26'.

The drawer 23 includes a photoreceptor unit 1, a developing unit 5.
Image forming units such as a cleaning unit 6 and a toner cartridge 7 are removably housed. When the drawer 23 is pushed into the main body, these units are installed in an appropriate positional relationship with each other so that the electrophotographic recording operation can be performed correctly, and the transfer charger 2 provided on the main body side is attached. , electrostatic charger 3. The static elimination lamp 4, optical system unit 8, registration roller 27, etc. are also positioned so as to maintain appropriate positional relationships.

By pulling the drawer 23 out of the main body, the developing unit 5 and the toner cartridge 7 are automatically separated to the right in FIG. 7 with respect to the photoreceptor unit 1.
The cleaning unit 6 is automatically pulled away to the left. By separating the units from each other in this manner, when a unit is to be removed when it is time to replace it, there is some space between it and the adjacent units, which simplifies the work and prevents damage to the adjacent units.

There is a handle 23 on the front of the drawer 23 for pulling out the drawer.
d is attached. Further, the developing unit 5, the cleaning unit 6, and the toner cartridge 7 are each provided with a handle. However, the handle is omitted and not shown in FIG.

In addition to the drawer 23 equipped with the above-mentioned image forming unit, the optical system unit 8 that optically scans the photoreceptor, and other components, the main body includes a first paper feed cassette 14a that supplies recording paper, and a first paper feed cassette 14a that supplies recording paper. 2 paper feed cassette 14b, and a fixing unit 10 that fixes the toner image on the recording paper developed by the image forming unit by heating and pressure. It includes a transport section 28 and the like. Furthermore, a first paper discharge tray 15a and a second paper discharge tray 15b are provided at the top of the printer body to receive recorded recording paper discharged via the conveyance path 13.

The printer main body also includes a separate mass-feeding unit 29 that is used as an option as needed, and a unit for turning over the recording paper recorded on one side after leaving the fixing unit 10 and supplying it again to the image forming unit. reversing unit 1
2 (FIG. 12).

By raising the cover plate 23e and covering the drawer 23 with the drawer 23 housed in the main body, it is possible to prevent dust from entering and improve the appearance.

8 and 9 show an example of a mechanism for separating the cleaning unit 6 from the photoreceptor unit 1 by pulling out the drawer 23. FIG.

Slide hole 31, cleaning unit holding notch 3
2. A pair of sliders 35.35'' consisting of a spring support protrusion (pin) 33 and a cam abutment part 34 are attached to the drawer 23.
The drawer 23 is disposed at the front and rear of the drawing direction, and is slidably fixed to the drawer 23 by a guide pin 36. A spring 39 is inserted between the spring support protrusion 33 of the slider 35 and the spring support protrusion 38 fixed to the bottom of the drawer 23.
Stretch it.

Further, the shaft rod 40 is passed between the front and rear side plates of the drawer 23, the cam 41 is fixed at a location corresponding to the position of the cam contact portion 34 of the slider 35, and the shaft rod 40 is attached so as to rotate in the axial direction. Attach the spring 37. Although such a cam and spring are not shown in FIG. 8, they are of course provided to the slider 35'. A pin 42 is provided at the rear end of the shaft rod 40 so as to engage with a cam 43 provided on the main body side.

The cleaning unit 6 has four pins provided at both its front and rear ends, two of which pins 44°44' are fitted into the notches 32°32' of the slider 35 as shown in FIG. 35, and as shown in FIG. 10, the remaining two pins 45, 45' are held by pin supports 46, 46' provided on the side wall of the main body. As shown in FIG. 11, the pin support portion 46, 46' has a pin slide elongated hole 47 for slidably supporting the pin in the sliding direction, and has a notch 48 above which serves as a pin insertion hole. have.

In the drawer 23 holding the image forming unit configured as described above, in the operating position where it is housed in the main body, the pin 42 at the end of the shaft 40 comes into contact with the cam at the back of the main body side cam 43. The spring 37 prevents the cam 41 from rotating. Therefore, only the elastic force of the spring 39 effectively acts on the slider 35.35', and the cleaning unit 6 supported by the slider 35.35' is positioned close to the photoconductor unit 1, which is the original operating position. . That is, the cleaning unit 6 has a spring 39
8, it is pulled to the right in FIG. 8 (reference position).

On the other hand, when the drawer 23 is pulled out, the pin 42 at the end of the shaft 40 extending from the front and back of the drawer 23 is
The cam 41 is removed from the cam 43 on the main body side, receives the rotational force of the spring 37, and pushes the abutting portion 34 of the slider 35, 35'. Since the spring force used is stronger in the spring 37 than in the spring 39, the slider 35 moves to the left in the figure, and as a result, by pulling the pins 44 and 44' of the cleaning unit 4, the cleaning unit 6 is away from the photoreceptor unit 1.

Although only the cleaning unit 6 has been described above, the developing unit 5 can also be separated from the photoreceptor unit 4 by a similar mechanism when the drawer 23 is pulled out.

In the above example, when the drawer 23 is pulled out from the main body,
In order to automatically separate the units set in the drawer 23, the position of the drawer 23 is detected and a predetermined unit slides according to the detection using a combination of a plurality of cam mechanisms. The present invention is not limited to such a cam mechanism, but can be realized by other means, such as a combination of electrical detection of the drawer position and an electromagnetic mechanism driven thereby.

(Effects of the Invention) As explained above, the present invention includes a fixing member for three-dimensional positioning and a fitting member that fits with the fixing member to accurately position the optical scanning device with the main body, and to perform installation at that time. It is fixed by a mounting screw formed by wrapping an elastic member, and is firmly positioned and mounted by the elasticity of the elastic member. The washer fitted into one end of the mounting screw helps to secure the mounting screw, and there is no fear that it will come off due to external vibrations or the like.

[Brief explanation of the drawing]

Fig. 1 is a perspective external view of an embodiment of the present invention, Fig. 2 is a perspective external view showing each side of the positioning member, Fig. 3 is an example of the arrangement of internal parts of an optical box of an optical scanning device, and Fig. 4 is an explanatory diagram of the positioning operation between the laser printer main body and the optical box shown in FIG. 1, FIG. 5 is an example of the mechanism for attaching and detaching the imaging case to the laser printer main body, FIG. 6 is a partial sectional view of the drawer, and FIGS. 8 and 9 are examples of a mechanism for separating the cleaning unit 6 from the photoreceptor unit 1 by pulling out the drawer 23.
FIG. 10 is a mechanism diagram for supporting the cleaning unit 6 on the drawer 23, FIG. 11 is a diagram showing the supporting part of the pin 45, 45', FIG. 12 is a sectional view of the laser printer shown in FIG. 6, and FIG. FIG. 2 is an external perspective view showing how an optical box is attached to a printer body in a conventional optical scanning device. 1... Photoreceptor: Photosensitive unit, 8... Optical scanning device, 80... Optical box, 80a... Side plate. 80b...Slide rib, 80c...Front fitting groove, 80d...Backward fitting groove, 80e...Tip side plate, 8
0f...protrusion, 80g...front side plate, 80h...
Insertion hole, 86-88.86'-87'...Connector, 16...Body side plate, 17...Body guide rail, 18...Front stud, 19...Rear stud,
20...Body stay, 20a...Hole, 21...Screw hole plate, 22...Mounting screw, 22A...Spring, 22B...Washer. Patent applicant Rico Co., Ltd. Part 2 Figure 3 Figure 8o Nine boxes 80a (S 11 slope 80e...)
og...ker4? 1st 83rd eye private fQ mirror 8
3a-Rotating multifaceted Kishi, 9th duty board 84a-9! l
Mirror 84b - 2nd mirror 84cm9r3 mirror 84d ・Fθ re-lenme 4 mirror 86
86: 88'...Kokicta 86a
Ya 1 cylinder solenoid lens 870' Synchronous &? The pot is also 48° -57b -7! Wall 87'...
Figure 4 16...Main body side plate 17゛Honrei 4 drains 1
Sun-Forward entry Kud 19 (Henkata Kud 20o
Hole 20...Hon Jl fist stay 2] ・Kin-hole plate 22A・Spring 22゛°"Kizu with claw 80・14j box 800...Ita'1
& 80b-sura 4) ``Jingsoge 80c・
・60,000 Minamigozen 80d...
・-Even #? Bunzo 809・ke fishing 1 row board Fig. 4 21... Pheasant missing flat rate 22... 1-length pheasant 22A...Suring 22B...Washer 809゛° #Jl old board Fig. 5 23 -Made 41Y-person + ,,, #t
44 1a - holes 23a, 23b, 23a',
23b"・ ice h% preview 23c -'
No.23d-4j 24°- months! 'ltt
1m 24a, 24b, 25a, 25b-Suhrad 24c Opening 25...4 Disaster] Sword (2
5C・Y゛ram melting l-26...Video relay Fig. 7 3. Charge career each 4° static elimination ring Fig. 8 31゛-Slide hole 32, 32'-uni, hair net, general shot cut 3 33.44.44', 45...Hi1in 35.36'...Slighter Figure 9 Figure 10

Claims (1)

[Claims] A fixing member that guides and positions an optical scanning device on the main body side of a laser printer or the like in a three-dimensional direction when slid, and a fitting member that fits with the fixing member to perform positioning is provided on the optical scanning device, etc., In an optical scanning device, etc., configured such that the optical scanning device, etc. can be attached and detached from the main body by coupling and detaching these two members, after the optical scanning device, etc. is positioned on the main body, an elastic member is wound around the mounting member that fixes the optical scanning device, etc. 1. An attachment/detachment device for an optical scanning device such as a laser printer, etc., characterized in that the device is interposed.