JPS63106685A - Adhesive tape for cleaning - Google Patents

Abstract

PURPOSE:To secure the facilitate the cleaning of a recessed part by providing a long-sized base film and plural projecting adhesive parts which are fitted on the base film lengthwise at specific intervals. CONSTITUTION:The adhesive tape 229 for cleaning has the long-sized base film 223 and plural projecting adhesive parts fitted on the base film 223 lengthwise at specific intervals. The projecting adhesive parts project from the base film 223 to projection height which is >=1.1 times the step H between a mask 590 and a developing electrode 596. This adhesive tape 229 for cleaning is set opposite a part to be cleaned and the projecting adhesive parts are intruded into recesses of the part to be cleaned, so that unnecessary matter such as a caked developer in the recesses is stuck and removed properly with adhesive strength.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning adhesive tape used for cleaning the developing electrode of an electrophotographic apparatus.

[Conventional technology]

2. Description of the Related Art Electrophotographic apparatuses are known that are capable of recording images on predetermined frames of electrophotographic film and projecting or copying the recorded images. Further, Japanese Patent Laid-Open No. 79234/1983 discloses a cassette in which a tape-shaped electrophotographic film is housed in a roll in a case. The film in this cassette can be applied to document storage and inspection systems, and has a number of advantages that cannot be obtained using conventional films made of silver salt photosensitive materials.

A process head that charges and exposes the electrophotographic film in this cassette and also performs development processing, etc. was developed in JP-A-59-1.
00479, JP-A-59-162580, etc.

According to this, the electrophotographic film is sequentially moved to a charging/exposure section, a developing section, a drying section, and a fixing section provided in a process head, and an image is recorded thereon.

In the developing section, a clear image is obtained by sufficiently applying developer over the entire exposed area of the electrophotographic film and applying a bias voltage to the 1-ft developing pole.

However, in order to apply a bias voltage to the developing electrode in this manner, the developer is attracted and adhered to the developing electrode, causing solidification after development. If this hardened developer gradually accumulates, it will reduce the bias effect of the developing electrode and further impede the passage of the developer. In order to solve this problem, repair work is required to periodically remove the solidified developer from the developing electrode.

However, since the developing electrode is recessed from the surface of the process head, cleaning the fat is not easy.

[Problem that the invention seeks to solve]

In consideration of the above-mentioned facts, the present invention aims to provide a cleaning adhesive tape that can easily remove unnecessary substances attached to the recessed portions, such as developer attached to the developing electrode.

[Means for solving the problem] The adhesive tape for cleaning according to the present invention includes a long base film and a plurality of protruding adhesive parts attached at predetermined intervals in the longitudinal direction on the base film. It is characterized by having

Therefore, in the cleaning adhesive tape of the present invention, if the protruding adhesive part is made to correspond to the part to be cleaned and inserted into the recess of the part to be cleaned, unnecessary substances such as solidified developer in the recess can be removed with appropriate adhesive force. The adhesion can be removed by

The adhesive part may be formed of an elastic member that is adhered onto the base film with a force greater than the adhesive force with the member to be cleaned, and a piece of double-sided adhesive tape can be used as the adhesive part,
If one side is attached to the base film, the other side will protrude from the base film and the tip will become the adhesive part.When using a piece of double-sided adhesive tape, the adhesive side of the tape piece that comes into contact with the member to be cleaned should be Strengthen the adhesive strength of the adhesive side to the base film.

(Embodiment) (Electrophotographic Apparatus) FIG. 7 shows an embodiment of an electrophotographic apparatus to which the present invention is applied. This electrophotographic device has a camera function that captures a document and records the image on electrophotographic (micro) film, a league function that enlarges and projects the image recorded on the electrophotographic film onto a screen, and an electrophotographic It also has a copy function that enlarges and copies images recorded on film onto copy paper.

The electrophotographic apparatus is a copying machine in which an electrophotographic apparatus main body 510 and a housing 511 also serve as a stand for the electrophotographic apparatus main body 510! 512 are integrated. Note that if the copy function is not required, it is also possible to use only the electrophotographic apparatus main body 510 alone. The housing 514 of the electrophotographic device main body 510 is
It is composed of a portion 514A located on the left and having a substantially rectangular parallelepiped shape, and a portion 514B located on the right and having a stepped top surface, and the internal spaces of the image portions 514A and 51413 are communicated at the rear part. .

On the outside of the housing 514A, there is a transparent screen 51 that is slightly tilted backward and covers the front opening of the housing.
6 is disposed, and a document table 518 is disposed above.

On the document table 518, there is a document holding plate 520 that can be opened and closed.
A transparent glass plate is placed at the bottom of the housing, covering the upper opening of the housing. An electrophotographic (micro) film 222A (first D
A cassette loading section 526 is formed near the upper center portion into which an image recording cassette (not shown) containing the drawing number W1) or a cleaning cassette 525 containing the cleaning chip 1222 (see Fig. 1A) is loaded. A control keyboard 528 for performing various operations of the electrophotographic apparatus is disposed at the upper front part.

Further, the housing 511 of the copying unit Tt512 is formed with an opening 532 through which the copy paper of the copying unit is discharged.

To record an image on the electrophotographic film 222A, an image recording cassette is loaded into the cassette filling section 526, and the desired image of the electrophotographic film 222 is transferred to the process head 554 (see FIGS. 8 to 1O) disposed in the housing 511. Charging, exposure, development, drying, and fixing are performed in sequence by matching the frames. An image to be recorded on the electrophotographic film 222A is obtained by placing an original having this image on the original platen 518, and the image of this original is transmitted through an internal optical means by a light source (not shown) to a process head 554. The electrophotographic film 222A is exposed to light.

Furthermore, the image on the electrophotographic film 222A is projected onto a screen 516 by switching optical means, so that a hard copy can be obtained as required.

(Process Head) As shown in FIGS. 8 to 10, the process head 55
4, a predetermined frame of the electrophotographic film 222A is charged and exposed at a charging/exposure section 564, a developing section 566, a drying section 568, and a qualitative section 570.
^ Image recording work is being carried out in a sequential manner.

In the developing section 566, a mask 590 is formed in a frame shape by an upper frame 590A, a left frame 590B, a right frame 590C, and a lower frame 590D. There is.

Inside the opening of the mask 590, as shown in FIG.
A developing electrode 596 is disposed supported by a rear wall 594 and connected to a bias power source.

The surface of the developing electrode 596 is located slightly inside (0.3 to 1.011) from the end surface of the mask 590, and the space surrounded by the developing electrode 596 and the inner wall of the mask 590 is defined as a developing chamber 598. There is. The upper and lower parts of the developing electrode 596 are opened to form a developer/squeeze air inlet 600 and a developer/squeeze air outlet 602, respectively.

The developer/squeeze air inlet 600 communicates with a passage 604 formed in the inner space of the process head 554. It communicates with the air supply port 608 for air. The developer supply port 606 is connected to a developer tank via a valve (not shown), and the squeeze air supply port 608 is connected to an air pump. Further, the developer/squeeze air outlet 602 is in communication with a passage 610 formed in the internal space of the process head 554 . 612 to return excess developer to the developer bottle.

(Film holding structure a) As shown in FIGS. 10 and 11, a holding plate 69B is associated with the front wall 574 of the process head 554 and is used for holding the film.

The presser plate 698 has a cylindrical portion on the back side of the surface facing the process head 554. ! 2 is formed protrudingly, and this cylindrical portion 712 has a notch 7 formed at one end of the arm 714.
14A is engaged.

A boss portion 714B is formed at the other end of the arm 114. A shaft 716 is fixed to the boss portion 714B.

The shaft 716 is rotatably pushed through and supported by a stand 718 erected on the frame 560 to which the process head 554 is attached, and its lower end protrudes from the back surface of the frame 560. This protrusion is the second lever 726,
It is connected to a plunger 734A of a solenoid 734 via a second lever 726, so that when the solenoid 734 is energized, the presser foot 69B is pressed against the mask 590 of the process head 554 (in the direction of arrow E in FIG. 11).

Note that a prep sensor 696 is attached to the front wall 574 of the process head 554, and the electrophotographic film 2
Blip marks (not shown) provided for each piece of 22A are photoelectrically detected based on the difference in light reflectance, and each piece can be stopped at a predetermined position.

(Cleaning cassette) Figures 1 to 6 show the electrophotograph '2 used in the embodiment of the present invention.
A W cleaning cassette 525 is shown, which accommodates a cleaning tape 222 for the process head developing section. This cassette 525 has the same shape as the image recording cassette for accommodating the image recording electrophotographic film 222A (see FIG. 1D) except for a part. Each component will be explained in detail below.

(Lower cassette case) As shown in FIG. 1, the lower cassette case 10 has a peripheral wall erected around a substantially U-shaped bottom plate 12 whose left and right ends protrude forward. A rear wall 14 erected at the rear of the base plate 12, left and right side walls 16 and 18 erected at the left and right sides of the bottom plate 12, and a front side wall 16 and 18 erected from the front of the bottom plate 12 to the left and right sides. It is composed of a wall 20.

The back wall 14 and the left and right side walls 16 and 18 are integrated into a U-shape and are located at the outermost periphery of the bottom plate 12.

Front wall 20A of the portion located inside the left side wall 16
extends to the rear in parallel with the left side wall 16, curves inward from the middle and continues to the rear wall 14. Right side wall 18
The portion of the front wall 20B located inside extends rearward in parallel with the right side wall 18 with a slight gap therebetween, and then curves outward and continues to the right side wall 18.

The lower cassette case 10 has partition walls, cylindrical or cylindrical projections, uneven parts, etc. formed on the inner surface of the bottom plate 10 inside the peripheral wall. The lower cassette case 10 is constructed by integrally molding all of these components from synthetic resin.

Inside the lower outlet case IO are left and right reel housing chambers 30.32 in which a pair of glue wheels are housed, and left and right guide roller housing chambers 34.32 in which a pair of guide rollers are housed.
36, a brake mechanism housing chamber 38 where a reel brake mechanism is housed, a lock plate housing chamber 40 where a lock plate for fixing the guard panel is housed, and an independent chamber 42 where a claw member is disposed are separated by a partition wall. It is partitioned and formed.

The left and right reel storage chambers 30 and 32 are the lower cassette case lO
They are located on the left and right sides of the offshore center bulkhead 44, which is erected from the bottom plate 12 at a position slightly to the right of the center in the left-right direction. The left and right reel storage chambers 30 and 32 have a bottom plate 12 at the center of each storage chamber.
A circular through hole 46.46 is formed in the hole. Convex portions 4 having a rectangular cross section are formed on the inner surface of the bottom plate around the openings of these through holes 46.
8 is formed in a ring shape. A protrusion 50 having a rectangular cross section is formed in an annular shape concentrically with the annular protrusion 48 around the outer periphery of the annular protrusion 48 . The annular convex portion 48 and the annular convex portion 50 are slightly recessed from the surface of the bottom plate 12 to form an annular concave portion 51 .

The left and right guide roller storage chambers 34.3G are adjacent to the left and right reel storage chambers 30.32, respectively, and are located in the lower cassette case 1.
It is located on the left and right protrusions on the front side of 0. In the left and right guide roller storage chambers 34 and 36, cylindrical projections 52 and 52 are formed to protrude from the bottom plate 12 at the center of each storage chamber to the height of the peripheral wall, and serve to support the tape guide reel 236.

The partition wall 54.54 that partitions the left and right guide roller storage chambers 34.36 and the left and right reel storage chambers 30.32 is partially open, and the front wall 20 between the left and right guide roller storage chambers 34.36 is partially open. Notches 58 and 58 are formed in a portion of the grooves 58 and 58, respectively, for passage of the cleaning tape 222.

The brake mechanism housing chamber 38 is the left and right reel housing chambers 30.3.
2, and is located at the center of the rear side of the lower cassette case 1O. The brake mechanism housing chamber 38 is located at the center 17.
! It is further divided into three chambers by partition walls 60 and 60 on two sides parallel to the L wall 44, with the central chamber serving as a release piece housing chamber 62, and the left and right chambers serving as brake lever housing chambers 6.
It is 4.64.

The independent chamber 42 is located adjacent to the rear of the lock plate storage chamber 40, and its lower part is fixed by the bottom plate 12. However, in the image recording cassette, a tab for preventing accidental erasure is formed on the bottom plate of the storage chamber 40, which can be cut by bending.

Cylindrical projections 98.9B are provided from the inner surface of the bottom plate 12 at the rear left and right corners and the front center of the lower cassette case 10.
98 is formed to protrude to the height of the peripheral wall and is used for connection with the upper cassette case 104.

As shown in the upper left part of FIG. 3 and the left part of FIG. 4, a cylinder 103 whose upper end is closed is formed in a part of the bottom plate 12.
Its lower end is a cleaning cassette detection hole 103A opened to the outside of the lower cassette case IO. At times, it is possible to identify whether the cassette is a cleaning cassette or an image recording cassette.

(Upper cassette case) As shown in FIG. 1, the upper cassette case 104 has a peripheral wall hanging around a top plate 106 in which left and right ends 106B and 106C of a rectangular main body 106A are slightly protruded forward. The provided 0 circumferential wall is shaped so as to correspond to and abut on the main parts of the rear wall 14, left and right side walls 16, 18, front wall 20, etc., which are erected on the lower cassette case IO.

Further, on the inside of the upper cassette case 104, portions are formed that correspond to the respective chambers formed in the lower cassette case and close the respective chambers.

Further, a cylindrical projection (not shown) is formed to protrude from the top plate 106 to near the height of the peripheral wall, and the upper cassette case 10
4 is joined to the lower cassette case 10, the rollers are positioned directly above and in contact with the cylindrical protrusions 52 and 52 formed in the left and right guide roller housing chambers 34 and 36 of the lower cassette case 10, respectively. There is.

Like the lower cassette case 10, the upper cassette case 104 is entirely integrally molded from synthetic resin.

(Reel) As shown in FIGS. 1A and 2, the reel 180 has a flange 182 and a hub 184 integrally molded from synthetic resin. A large number of rectangular teeth 186 are formed at equal intervals on the outer peripheral surface of the flange 182.

An annular convex portion 194 having a rectangular cross section and concentric with the flange 182 is formed on the lower surface side of the flange 182 . The annular outer diameter of this annular convex portion 194 is set to a diameter that allows it to freely fit into a through hole 46, 46 formed in the lower cassette case IO. Further, a protrusion 196 having a rectangular cross section is formed in an annular shape concentrically with the annular protrusion 194 around the outer periphery of the annular protrusion 194 .

Clamp 204 as shown in FIGS. 1A and 2
is fitted into the hub 184 and the cleaning tape 22
The end of the reel 18G is adapted to be locked to the reel 18G.

(Tape) As shown in FIG. 1B, the cleaning tape 222 housed in the cassette case has a base film 223.
A cassette ejection mark 2 is placed at a predetermined distance from one end 223A.
25 are provided. Furthermore, a plurality of similar cassette ejection marks 225 are formed at regular intervals from this cassette ejection mark 225. Detection marks 227 are provided at regular intervals (dimension LA) on the base film 223 B side of these cassette expenditure marks 225.

Six detection marks 227 are formed at regular intervals near the other end 223B of the cassette ejection mark 225.

Furthermore, each of these detection marks 227 has one end 22
An adhesive tape piece 229 is attached at a distance toward 3A, and adhesive is applied to the surface.

In this cassette, the adhesive tape piece 229 between the cassette ejection mark 225 and the next ejection mark 225 is used in one cleaning. The aforementioned developing electrode 596 is vertically divided into three parts, and six pieces of adhesive tape are placed between the take-out marks 225 so that each divided part can be cleaned twice.
The case where the pieces are set will be explained, but the division method and number of times are as follows.

It is not limited to this method.

This cleaning chip 1222 is wound onto the roll 180 in the cleaning cassette 525 from the other end 223B side, and when in use, is wound up toward the one end 223A side (in the direction of arrow PR in FIG. 1B).

In this embodiment, the base film 223 is made of polyethylene terephthalate (PET) and has a thickness of 50 μm.
The back surface opposite to the surface to which the adhesive tape piece 229 is applied is coated with silicone to prevent the adhesive tape piece 229 from adhering. The base film 223 has a color and material that allows the detection light of the blip sensor 696 of the process head 554 to pass through.

On the other hand, the force set extraction mark 225 and the detection mark 227 are provided in a color that does not allow the detection light of the blip sensor 696 to pass through, and are provided at a position corresponding to the blip sensor 696. Although it is formed by pasting it on the entire surface, it is also possible to provide it by printing or the like.

In this embodiment, a tape having an opaque portion is used as the cassette ejection mark 225, but any tape that can be detected by a sensor may be used. The mark may also be used.

Further, the adhesive tape piece 229 has a protrusion shape that protrudes from the base film 223, and the protrusion height is the 12th
As shown in the figure, the height difference H between the mask 590 and the developing electrode 596 is 1.1 degrees or more. However, this adhesive tape piece 229 has a cleaning tape 222 attached to the presser plate 698.
If the cleaning tape 222 is not pressed down, it will be in the state shown in FIG. 3 and will be under tension, so that it will not come into contact with the process head 554 even when the cleaning tape 222 moves in the longitudinal direction.

Therefore, even though the developing electrode 596 is recessed from the surface of the mask 590, the adhesive tape piece 229
The surface does not come into contact with the developing electrode 596 during running, and the pressing force of the presser holder 698 ensures reliable contact with the developing electrode 596. Note that the holding plate 698 uses an electrophotographic film 222 instead of the cleaning tape 222.
If A is used, it is transferred to the process head 554.
It has the role of pressing against.

The length of this adhesive tape piece 229 in the longitudinal direction, that is, the length in the width direction of the cleaning chip 1222 is larger than the vertical height of the developing electrode 596 shown in FIG. It looks like this. However, the longitudinal end of this adhesive tape piece 229 is apart from the widthwise end of the base film 223, and the blip sensor 696 detects the adhesive tape piece 229.
Nine powers (no food is served).

In this embodiment, the adhesive tape piece 229 is made by cutting a double-sided adhesive tape into strips. It is stronger than the surface, and even when pressed against the developing electrode 596,
The adhesive tape piece 229 is prevented from falling off the base film 223 due to adhesion to the developing electrode 596.

It is also preferable that the adhesive tape piece 229 has elasticity in the thickness direction, so that even if the developer solidifies on the developing electrode 596 with an uneven thickness, it can absorb the difference in height and the developing electrode It is preferable to use a rubber sheet that deforms by 5% or more under a force of 2 kg or 10 J, or a sheet using foamed rubber, so that it can be attached to the entire surface of the developer of uneven height attached to the surface of the 596. In this example, foamed urethane (1,4
(kr/d deforms by about 20%) was used. Further, as a matter of course, the adhesive used is a material that does not adversely affect the electrophotographic film 2228.

As shown in FIG. 1B, six pieces of adhesive tape 229 are arranged in series on the downstream side (opposite to the direction of arrow Fr1) of the cassette ejection mark 225, and the detection marks 227 are arranged on the downstream side, respectively. F; is set at a predetermined interval. These six adhesive tape pieces 229 are counted from each cassette ejection mark 225, and the first adhesive tape piece 229 has a dimension LB from the detection mark 227, the second adhesive tape piece 229 has a dimension LC from the detection mark 227, and the third adhesive tape piece 229 has a dimension LC from the detection mark 227. The adhesive tape piece 229 has a dimension LD from the detection mark 227. Furthermore, the fourth, fifth, and sixth adhesive tape pieces 229 are spaced apart from the detection mark 227 by the same dimensions as the first, second, and third adhesive tape pieces 229, respectively.

As shown in FIG. 12, each width W of the adhesive tape piece 229 is one-third or more of the horizontal width R of the developing electrode 596. That is, the adhesive tape piece 229 shown in FIG. 12 is stopped with the first detection mark 227 detected by the prep sensor 696 and pressed by the presser foot 698, and the adhesive tape piece 229 is stopped at the upstream side of the adhesive tape piece 229°. (The end in the direction of the arrow FR force has reached the outside of the end of the developing electrode 596 (to the right in FIG. 12), and in this state, the presser plate 6
When the pressure of 98 is released and the cleaning tape piece 222 moves until the second detection mark 227 is detected by the prep sensor 696, the second detection mark 227
An adhesive tape piece 229 spaced apart by a dimension LC corresponds to approximately the center in the left-right direction of the developing electrode 596 (at a position W2), and a third detection mark 227 is located at the prep sensor 696.
When detected, the third adhesive tape piece 229 corresponds to the left end of the developing electrode 596 (at position W3), and the stopping positions of these adhesive tape pieces 229 are such that their horizontal ends overlap with each other. ing.

Therefore, when the three adhesive tenip pieces 229 are brought into contact with the surface of the developing electrode 596 in sequence from the upstream side, the developing mold FIi 59
6, the adhesive tape 229 removes the developer from all sides. In other words, the length of the overlapped portion when the solidified developer is removed by the three-day adhesive tape piece 229 is the dimension LB in FIG. 1B.
and LC, and the difference between LC and LD.

The fourth, fifth and sixth adhesive tape pieces 229 from the cassette ejection mark 225 in FIG. 1A stop at the same locations as the first, second and third adhesive tape pieces 229 to attach solidified developer. In other words, the developing electrode 59
The adhesive tape pieces 229 are adhered twice to the same location on the surface of the container 6 and taken out, thereby ensuring reliable removal of the solidified developer.

Note that the intervals between the adhesive tape pieces 229 and the detection marks 227 are all set to be the same, and the blip sensor 6 is controlled by the control device.
After detecting the detection mark 227 at 96, each adhesive tape piece 2
By changing the time during which the adhesive tape 229 is stopped, the contact position of each adhesive tape piece 229 to the developing electrode 59G is changed, and the cleaning tape 2 is substantially changed as shown in FIG. 113.
22 can also achieve the same effect.

FIG. 10 shows an electrophotographic film 2228 for recording images. This electrophotographic film 222A is used in the cleaning cassette 5 instead of the cleaning team 1222.
The film is wound onto a reel 180 in 25 and used for image recording.

This electrophotographic film 222A includes a sensitive material tape 224, a magnetic tape 226 which is a memory tape, and a leader tape 2.
28 are spliced together with splicing tape 230. Further, a conductive adhesive tape 232 is attached to the end of the sensitive material tape 224 on the side opposite to the splicing side.

The sensitive tape 224 is a tape-shaped electrophotographic film in which an R conductive layer made of aluminum or the like and a photoconductive ultramolecular material such as polyvinyl carbazole, which is an organic semiconductor, are sequentially laminated on an insulating support such as transparent polyester. has been configured. HS conductive adhesive tape 232 is a sticky fFJ compound made by dispersing conductive particles such as carbon on a thin metallic tape.
15 are provided.

When attaching the conductive adhesive tape 232 to the sensitive tape 224, a portion of the photoconductive layer of the sensitive tape 244 is peeled off, and the conductive adhesive tape 232 is attached to the exposed conductive layer.

(Assembling the cleaning cassette 525) The lower cassette case 10 and the upper cassette case 104 are joined together, and the reel 1 is connected between the annular protrusions 48 and 50 of the lower cassette case 10.
The clamps 20 are inserted into the pair of reels 180 so as to correspond to the annular convex portions 196 of the reels 180, respectively.
4, both ends of the cleaning tape 222 are attached to the reel 1 with the other end 223B attached.
80, wind up the maximum amount of cleaning tape 222. In this state, the cleaning team 1222 is wound around the guide rollers 236 as shown in FIG. 3, and is linearly arranged between the guide rollers 236 and exposed from the cleaning cassette 525. In this state, the brake levers 262 and 274 are engaged with the teeth 186 of the reel 180, so the reel 180 is not rotated, the cleaning tape 222 is not inadvertently bent, and the cleaning team 1222 is not rotated. Since the exposed part is covered by the guard panel 322, the adhesive tape piece 2
29 will not be inadvertently bonded to unnecessary parts.

(Brake Lever) The brake lever 262 is pivotally supported within the brake lever storage chamber 64, and the reel engaging piece 266 and the release piece engaging piece 268 are integrally molded from synthetic resin, and the tip of the release piece retaining piece 268 is attached to the brake lever. It is arranged in the mechanism housing chamber 38.

The brake lever 274 has a symmetrical shape and arrangement to the brake lever 262.

Brake lever 262.274 has torsion coil spring 2
76.276 is attached, and the reel engaging piece 266.2
66 enters the left and right reel housing chambers 30.degree. 32 and engages with teeth '186 formed around the outer periphery of the flanges 182 of the reels 180,180. - The release piece 278, which is a brake release member, is housed in the release piece storage chamber 62, and receives an external force to release the brake lever 262, 274 to the reel 18.
It is set away from 0.

(Lock Plate) As shown in FIG. 1, the lock plate 292, which is a locking means for the guard panel, is pivotally supported in the lock plate storage chamber 40, and a guard panel locking piece 296 is extended from one side, and a temporary spring is inserted from the other side. Piece 298 is extended and these are integrally molded from synthetic resin.

As shown in FIG. 3, the lock plate 292 is configured such that the tip of the temporary spring piece 298 comes into elastic pressure contact with the inner wall of the left side wall 16, and a clockwise rotational force is applied to the guard panel locking piece 296. The tip protrudes and corresponds to the guard panel 322.

(Reel pressing spring) As shown in Figure 1A, the reel pressing spring 304.31
0 consists of a single flat metal plate that has been bent and sheared, and is attached to the upper cassette case lO4.
The reel 180 is pressed against the lower cassette case 10.

These reel pressing springs 304 and 310 are used as conductive materials for grounding when the image recording film 232A is stored in the cleaning cassette 525.

(Guard Panel) As shown in FIGS. 1 and 5, the guard panel 322, which is the lid of the cassette case main body 320,
4, left and right side walls 326, 328, and a top wall 330, and is pivotally supported on the cassette case body 320,
It is biased and rotated in a direction to cover the cleaning tape 222 exposed on the front surface of the cassette case body 320. This state is locked by a lock plate 292.

(Apparatus in which the cassette is loaded) FIG. 6 schematically shows a cassette holder 348 of the apparatus in which the cassette of this embodiment is loaded.

The cassette holder 348 is supported by a link-type elevating mechanism 350 and can be raised upwards of the apparatus.

The cassette holder 348 is located on the cassette insertion side (arrow A in the figure).
Two contact springs 352 and 354 are disposed parallel to the cassette insertion direction and extend downward from the cassette insertion direction. These contact springs 35
2.354 applies electricity to the electrophotographic film via the reel pressing spring 310 and the contact piece fitting 212 when the electrophotographic film 222 is stored in the cassette instead of the cleaning tape.

A pressing block 356 is arranged in an opening formed on one side of the cassette holder 348.

The pressing block 356 is fixed to one end of the leaf spring 358 and has a tip protruding from the opening, and presses the lock plate 292 protruding from the cassette to close the guard panel 3.
22 will be opened.

In addition, a detection pin 382 dedicated to cleaning cassettes is lifted up by force from the bottom of the cassette holder 348, and this pin 382 is inserted into the cassette detection hole 103A formed in the bottom plate 12 of the cleaning cassette 525 loaded into the cassette holder 348. When inserted into this bottle 3
A limit switch 384 that detects the movement of the cassette 82 makes it possible to identify whether the loaded cassette is a cleaning cassette or an image recording cassette.

The image recording cassette and the loading device include a cassette loading detection means (not shown) for detecting whether or not the cassette is loaded, and a specific claw on the cassette when you do not want to erase the contents stored in the cassette memory. An accidental erasure prevention mechanism (not shown) is provided, which makes it impossible to replace the memory with the old one by removing the old one. The presence or absence of a cleaning cassette can be detected without using a cleaning cassette.

In other words, the cleaning cassette may be configured so that only the erroneous erasure prevention mechanism of the image recording cassette is activated. By doing so, when neither the cassette loading detection means nor the erroneous erasure prevention mechanism is activated, the image recording cassette is Indicates a state in which a recording cassette recording cassette is not loaded, and indicates a state in which a memory rewritable image recording cassette is loaded when the cassette loading detection means is activated and the accidental erasure prevention mechanism is not activated; When both are operating, it indicates that an image recording cassette whose memory cannot be rewritten is loaded, and when the cassette loading detection means is not operating and the accidental erasure prevention mechanism is operating, a cleaning cassette is loaded. It can be determined that it indicates a state in which

In this way, since the cleaning cassette can be determined as the image recording cassette, the control of the operation timing of the presser foot 698, the motor 394, etc. can be changed based on this.

When the cassette holder 34B is in the loaded state, as shown in FIG.
Drive shafts 390 and 392 are respectively fitted into the 0 and rotated by the driving force of a motor 394. The driving force of the motor 394 is the clutch 395 and gears 396.39
7 to one or both reels 18G as forward rotation or reverse rotation. The driving force of this motor 394 has the role of applying tension to the cleaning tape 222 and separating the adhesive tape piece 229 from the developing electrode 596, but of course, when the electrophotographic film 222A is used instead of the cleaning tape 222, It serves as a driving section that drives this in the longitudinal direction.

(Operation of the Embodiment) When using this cleaning cassette 525, it is loaded into the cassette holder 348 shown in FIG. 6. This cassette holder 348 has an eject button (not shown) mounted thereon, and is sent upward by an elevating mechanism 350.

When the cleaning cassette 525 is inserted by the maximum amount in the direction of arrow A, the pin 382 enters the cassette detection hole 103A formed on the bottom surface of the cleaning cassette 525, so the limit switch 384 detects that the inserted cassette is the cleaning cassette 525. It detects this and starts cleaning the developing section. One side force set holder 3
Since the cassette in which the image recording tape is inserted into the cassette 48 does not have the cassette detection hole 103 AfcR, the cassette holder 348 can detect the inserted cassette as an image recording cassette, making it possible to perform image recording and playback operations. do.

Furthermore, since the bottom surface of the independent chamber 42 formed in the lower cassette case 10 of the cleaning cassette 525 is closed, this also ensures that the cleaning cassette 525 is detected. That is, a cassette containing an image recording tape may have a claw for preventing accidental erasure that has been bent and removed, and in this case, it can be immediately detected that the cassette is an image recording cassette.

Further, when the cleaning cassette 525 is inserted to the maximum extent, the pressing block 356 drives the lock plate 292 to rotate the guard panel locking piece 296 against the biasing force of the temporary spring piece 298. This unlocks the guard panel 322.

When the insertion of the cleaning cassette 525 into the cassette holder 348 is completed, the cassette holder 348 is pressed by an operator or automatically pushed into a predetermined position within the apparatus. In this case, the guard panel 322 is opened by a lid opening mechanism provided on a part of the cassette holder 348, exposing the straight portion of the cleaning tape 222.

In this state, the cleaning tape 222 and adhesive tape piece 229 exposed between the guide rollers 236 do not hit the process head 554.

Further, during the pushing operation of the cassette holder 348, a brake release pin (not shown) enters into the bottom plate 12 near the pushing end, and the brake levers 262 and 274 are rotated via the release piece 278, causing the teeth 180 of the reel 180 to rotate.
move away from Therefore, the brake of the reel 180 is released and the reel 180 becomes freely rotatable.

The reel 180 is mounted and engaged with the drive shaft 39o1392 at the pushing end of the cassette holder 348, as shown in FIG.

When the driving force of the motor 394 is transmitted to one reel 180 via the clutch 395, the cleaning tape 22
2 moves in the direction of the arrow FR force. Here, when the first detection mark 227 next to the first cassette ejection mark 225 is detected by the blip sensor 696, the driving of the motor 394 is stopped.

In this state, as shown in FIG.
9 corresponds to one end of the developing electrode 596 in the horizontal direction;
The developing electrode 29 is located below the state shown in FIG.
It is not connected to 6.

At the same time, the solenoid 734 shown in FIG. 11 is driven, and the pressing plate 698 presses the cleaning tape 222 against the process head 554. Therefore, the adhesive surface at the tip of the adhesive tape piece 229 is pressed onto the surface of the developing electrode 596.

Next, the cleaning tape 222 is moved in the direction of the arrow FR force again by the driving force of the motor 394, but in this case, the pressing of the cleaning tape 222 by the holding plate 698 is released, and at the same time, the driving force of the motor 394 is transferred to the other reel. 180 and temporarily winds up the cleaning tape 222 on both sides to apply tension. As a result, the adhesive tape piece 229 is forcibly separated from the surface of the developing electrode 596, and the adhesive surface of the adhesive tape piece 229 adheres and removes the developer that has hardened on the surface of the developing electrode 596 due to repeated image recording operations. I will do it.

Since cleaning efficiency increases when the developing electrode 296 is dry, it is more effective to apply dry air to the developing electrode 296 before or during driving of the cleaning team 1222.

Further, as a method for applying tension to the cleaning tape 222, a method may be used in which one reel 180 is braked and the other reel 180 is driven in the winding direction. In this case, the brake is temporarily applied to one reel 180. This prevents the cleaning tape from moving more than necessary.

When the cleaning tape 222 is further moved and the second detection mark 227 is detected by the blip sensor 696, the drive of the motor 394 is stopped and the second adhesive tape piece 229 is moved to the position W2 in FIG. , press plate 6
It is adhered to the horizontal center of the developing electrode 596 by the pressing force of 98.

Similarly to the above, if the pressing force by the presser temporary 698 is released and the cleaning tape 222 is tensioned, the adhesive tape piece 229 will be forcibly attached to the developing electrode 596 in the same way.
The solidified developer on the surface of the developing electrode 5966 is removed by adhesion.

Further, the cleaning tape 222 is moved in the direction of the arrow FR force, and the third detection mark 227 is located on the blip sensor 69.
6 corresponding to 6, the third adhesive tape piece 229 is the first
This corresponds to the position W3 in FIG. 1, that is, reaches the other end of the developing electrode 596 in the horizontal direction. Similarly, when the adhesive tape piece 229 is pressed against the developing electrode 596 and then released, the pressing operation on the third day causes the developing electrode 596 to
The adhesion of the developer that spreads over the entire surface is removed.

Further, the fourth to sixth adhesive tape pieces 229 are similarly pressed against the developing electrode 596 at sequentially shifted positions, thereby reliably removing the solidified developer.

After the sixth adhesive tape piece 229 is forcibly removed, the second cassette ejection mark 225 corresponds to the blip sensor 696, and the motor 394 is stopped. At this point, the controller automatically opens the cassette holder 348, indicating that the cleaning operation is complete.

Therefore, this cleaning cassette 525 is taken out,
This time, the image recording cassette is inserted into the cassette holder 348, and the image recording operation is performed again. In this case, since the developing electrode 596 is already in a clean state, there is no problem with the developing work.

After the image recording operation has been performed for a predetermined time and a predetermined number of times, or periodically, the cleaning cassette 525 is loaded into the cassette holder 348 and the cleaning operation of the developing electrode 596 is performed again.

In this way, each piece of adhesive tape 229 is pressed individually, resulting in cleaning over a wide area.
When a piece of adhesive tape is detached from a developing electrode, the motor load for applying tension is small.Although the motor that drives the image recording cassette of an electrophotographic device does not have a large driving force, it can be applied sufficiently. .

Although the above embodiment shows a structure in which the present invention is used to perform tRIIi on a process head for developing an electrophotographic film, the present invention can be widely applied to cleaning a portion with dents such as a developing section. It is.

In the above embodiment, the adhesive tape was disturbed only in the FR direction, but it is more effective to remove the edges of the developing electrode, that is, the corners of the bottom surface and the rising portions from the bottom surface.

(Effect of the invention) As explained above, the present invention provides a long base film,
Since the base film has a plurality of projecting adhesive parts attached at predetermined intervals in the longitudinal direction of the base film, it has an excellent effect of making it possible to reliably and easily clean the recessed parts.

[Brief explanation of the drawing]

Fig. 1A is an exploded perspective view of a cleaning cassette to which the present invention is applied, Fig. 1B is a front view of the cleaning tape with the middle part omitted, Fig. 1C is a view taken along the line IC-IC in Fig. 1B, and Fig. 1D The figure is a front view showing the electrophotographic film used in place of the cleaning tape, Figure 2A is an exploded perspective view showing the reel, Figure 2B is a perspective view of the reel seen from below, and Figure 3 is the lower cassette case. FIG. 4 is a sectional view taken along line It/-IV in FIG. 3, FIG. 5 is an exploded perspective view showing the relationship between the cassette and the guard panel, and FIG. 6 is the cassette holder. 7 is a perspective view showing the main body of the electrophotographic apparatus, FIG. 8 is a perspective view of the process head, FIG. 9 is a vertical sectional view showing the developing section of the process head, and FIG. 10 is a perspective view showing the electrophotographic apparatus main body. FIG. 11 is a perspective view showing the holding plate and related parts, and FIG. 12 is an enlarged horizontal sectional view showing the adhesive tape in contact with the developing electrode (holding plate). (not shown). 10...Lower cassette case 104...Upper cassette case 222A...Electrophotographic film 223...Base film 225...Cassette ejection mark 227...Detection mark 229...Adhesive tape piece

Claims (3)

[Claims] (1) A cleaning adhesive tape comprising a long base film and a plurality of protruding adhesive parts attached at predetermined intervals in the longitudinal direction on the base film. (2) The adhesive tape for cleaning according to claim 1, wherein the adhesive portion is formed of an elastic member adhered onto the base film with a force greater than the adhesive force with the member to be cleaned. (3) The adhesive tape for cleaning according to claim (1), wherein the adhesive portion is a piece of double-sided adhesive tape with one side adhered onto the base film.