JPS60170869A - Image recording device - Google Patents

Abstract

PURPOSE:To facilitate the handling of recording paper, to make the device compact and to improve its reliability by providing a controller which converts code information into an image signal in the device facing a paper discharge tray in which recording paper after being recorded is stacked while turned over. CONSTITUTION:A paper discharge path 25 is provided to invert the recording paper which advances through the image forming part composed of a photosensitive body 15, a fixing roller couple 23, etc., by 180 deg. in the advancing direction, and the paper discharge tray 27 is also provided to receive the discharged paper. The controller 31 which converts code information into an image signal is provided in the device facing the paper discharge tray 27. Thus, the paper discharge tray 27 is provided over a printer body 1, so recording paper after being printed out is handled easily and arranged according to pages. The controller 31 can be incorporated by utilizing the lower space of the printer, so the device is made compact and its reliability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an image recording device that records information images on recording paper.

(Prior art) A printer that uses a laser light source is said to be used as an image (2) recording device that records an information image □□□ on recording paper. Conotrola is used as a.

Traditionally, the printer/controller has been installed outside the printer, and as a result, the signal lines connecting the printer and controller are often exposed to the outside.
Furthermore, the longer signal lines may generate noise or pick up other noises, leading to malfunctions or loss of reliability.

On the other hand, in this type of printer, the location of the gritter in the ejection and storage section for printed recording paper is an extremely important issue when handling the recording paper.

Generally speaking, it is extremely convenient to provide such an ejection storage section at the top of the device C of the printer when handling printed recording paper.From this point of view, A recording paper ejection storage section is provided at the top of the device, and the recording paper that comes out of the image forming section where image recording is performed is reversed 180 degrees with respect to the direction of travel and is ejected with the good image side facing downward. If the recording paper is stored in the storage section, it is extremely convenient because the printed recording paper is arranged in the order of the pages.The requirement for making this configuration possible is that the recording paper ejection and storage section is provided at the top of the device. It is more effective.

On the other hand, if the recording paper ejection and storage section is placed at the bottom of the gritter device, handling of the recording paper becomes extremely troublesome, and the space occupied by the installation of the recording paper ejection and storage section is also required. , it also requires an occupied space for handling recording paper.

From this point of view, if the recording paper ejection/storage section is provided at the top of the print/printer, and the space available at the bottom is utilized, the above-mentioned controller is built into this space. There is no need to lengthen the signal line or expose it to the outside, and in addition, handling of the recording paper becomes easier, and the configuration for aligning the pages of the recording paper becomes easier. The device itself can be made into a conobact.

(Objective) The present invention has been made in view of the above points, and its object is to provide a highly reliable, easy-to-handle recording paper that enables page alignment of the recording paper. (2) Providing a more sophisticated image (2) Recording equipment.

(Structure) The structure of the present invention will be explained below based on an example of leprosy.

FIG. 1 shows a print/printer (hereinafter referred to as a printer) using a semiconductor laser as an example of the image recording device according to the present invention. Tell me.

In the figure, recording paper 4 is bundled and stacked on the bottom plate 6 of the paper feed tray 2, which is partially stored in the printer main body IK. It is sent towards the separation conveyance roller pair 6. Consisting of 6 pairs of separation conveyance rollers, an upper roller 6a and a lower roller 6o,
Of these, the lower roller 6° rotates in the direction opposite to the recording paper feeding direction (in the direction of the arrow) or is held in a stopped state, so that multiple sheets of recording paper are fed from the paper feed tray 2. When the upper roller 6 rotates in the direction of the arrow shown in the figure,
In cooperation with a, only the uppermost recording paper is separated and conveyed.

Recording A (separation conveyance roller pair 6) The recording paper fed by vc continues to be fed even after it is placed on the register O-ra pair 7, and the leading edge of the recording paper is recorded.1 Low leading edge detection unit 8
Once the quality of the registration roller pair 7 has been reached,
The recording paper also stops moving. At this time, the pair of recording paper separation and conveyance rollers 6 also stops. Note that, after feeding a predetermined amount of recording paper, the paper feed roller 5 is configured to rotate when a clutch (not shown) is disengaged.

By the way, in this printing, an optical sieve 9 is installed in the upper part of the printer body, and a mirror 11.1Z' for this optical sieve 9 is self-installed as shown in the figure. A semiconductor laser light source, a holo scanner, a borigo, etc. (not shown) are provided in the center.

In a printer equipped with such an optical system, when the printer receives a print signal from the host muff,
As the recording paper transport system mentioned above operates, the photoreceptor 15 consisting of an endless belt begins to rotate in the direction of the arrow. It should be charged more uniformly.

On the other hand, a signal light corresponding to the image information is emitted from the semiconductor laser light source, and this signal light is converted into scanning light by a rotating holo scanner or borigo/Vc, and this scanning light is transmitted to the mirrors 11, . The uniformly charged g-light body 15 passes through the optical lens 16 and is guided to 12.
0 surface. Due to the exposure accompanying this administration, a quiescent latent image is formed on the surface of the photoreceptor. In addition, what is indicated by the reference numeral 14 in the figure is dustproof glass.

The electrostatic latent image formed in this way is visualized by the toner, which is a 1' component, and which is carried on the surface of the image sleeve 17. By the way, as mentioned above, the recording paper temporarily stops when the leading edge of the recording paper reaches the recording paper leading edge detection stop 8, but after this stop, the pair of registration rollers 7 starts rotating again. Initially, the leading edge of the recording paper sent toward the photoreceptor 15 by this rotation is arranged to meet the microscope tip +4i on the photoreceptor at an opportune time in the transfer section facing the transfer charger 18. In the transfer section, the image on the photoreceptor 15 is transferred by the transfer charger 18 to the recording paper that moves while being in contact with the photoreceptor 15, and then the leading edge of the recording paper is moved to the photoreceptor by its own strength. After leaving the body, the recording paper is guided by guide members 19 and 20 and sent toward the pair of fixing rollers 26 of the fixing unit 22.

In the fixing roller pair 23, at least one of the rollers 23a and 23b has a K heat source, and when the recording paper passes between both rollers, the recording paper is transferred (the image is heat-fixed). After this period,
The recording paper is sent toward a recording paper path 25 while being peeled off from the surface of the roller 23a by the peeling claw 24. While passing through the paper ejection path 25, the recording paper rotates in this direction by 180°.
The output roller pair 26 is converted with the recorded image side facing downward.
The paper is ejected from the paper output tray 27 and stored in the paper ejection tray 27. on the other hand,
The toner remaining on the surface VC of the photoreceptor 15 is removed by the fur brush 29 of the cleaning unit 28, and the photoreceptor is cleaned and prepared for the next recording.

Here, to describe the disadvantages of the present invention, the recording paper traveling through the image forming section composed of the photoreceptor 15, the pair of fixing rollers 26, etc. is
a recording paper discharge path 5 for inverting the recording paper by 80°; and a paper discharge tray 2 for receiving the recording paper discharged from the paper discharge path 5.
7, and a controller 61 for converting code information into an image (2) signal is disposed in a part of the apparatus on the opposite side facing the recording paper ejection and storage part. .

-\ In this printer, the 11 paper tray 27 is provided at the top of the printer main body, so it is easy to handle the grid-out recording paper, and the recording paper is placed with the image (2) side facing downward. Since the recording sheets are ejected to the paper ejection tray 27, the recording sheets can be arranged in the order of the pages, which is extremely convenient.

By arranging the recording paper ejection and storage section at the top of the printer, a predetermined space is secured at the bottom of the printer, and this space can be used to house the controller 61 and the like. In other words, the functions mentioned above? While taking advantage of this, it is possible to make yellowtail/ri more compact.

In the printer of the actual case shown in FIG. 21, a shielding wall 32a extends from a base portion 62 integrally molded with synthetic resin, etc., and this shielding wall 32a and both side walls (not shown) connected to this shielding wall 32a, etc. A box-like structure is formed, and inside the box, a power supply unit 66, a gritter control circuit board 64, etc. are installed. A controller 51 and a fan device 65% are each housed therein. Note that, as mentioned earlier, the controller 61 converts code information into an image signal,
A plurality of printed/printed circuit boards 31a, 31D, etc. are provided as 41.

With the built-in controller 31, this? Compared to the case where the signal line is provided externally, the signal line is thinner and shorter, so it does not generate noise or pick up noise. The occurrence of malfunctions can be avoided and the reliability of the recording device can be further improved.

In Figure 1, the power supply unit 36 and the controller 31 are isolated from each other by the 7-wire frame 36, and it is possible to effectively achieve the mutual noise shielding function between the two. It is now possible to do so.

Ozone is generated from various chargers such as the electrostatic charger 16 and the transfer charger 18, but the shielding wall 62a can block the ozone from entering the space below the shielding wall 32a. There is. Furthermore, in this printer, the fan device 35 is operated,
By allowing air to flow in from the air intake opening 37 indicated by reference numeral 67, the 1M source unit 63 and the controller 61
Air cooling is now possible. In this case, the details 33a of the power supply unit 66 and the side portions 36 of the lead frame 66
By forming part of the wire mesh structure such as a, the inside of the power supply unit 66 and the substrates 31a, 310, . 34 etc. can be directly cooled.

In this printer, the substrate 31 of the controller 31
In addition to a, 31b and the control circuit board 54 of the printer, the upper IVc of the optical case 9, and the related printed circuit board 68 related to the optical system.
In addition, a character putter 7 storage device 39 is installed on the right side in the figure.

By the way, in the printer according to the present invention, in order to facilitate removal of jammed paper and maintenance of the device, a guide plate forming the paper discharge path 25 is provided. A cover 44, which includes N, 42, a pair of paper ejection rollers 26, and the fixing unit 22 can be rotated to open.

The cover 44 can be rotated and opened to the position shown in FIG. 2 using the base end side shaft 45 as a fulcrum. The state in which the rollers 23a and 23b are pressed against each other is released.

By opening the cover 44, the space between the fixing unit 22 and the cover 44 is wide open, and for example, by pulling out the jammed recording paper near the paper ejection path 25 in the direction of the arrow, it can be easily removed. can. In addition, the fixing roller pair 23
By pulling out the jammed recording paper in the direction of the arrow at the 0 position, it can be easily removed. In addition,
The paper discharge tray 27 can be freely inserted into and removed from the cover 44, and the cover 44 may be rotated to the position shown in the figure with the paper discharge tray 27 removed.

On the other hand, the fixing unit 22 shown in FIG. 2 can also rotate counterclockwise about the shaft 46 to the position shown in FIG. The space between them will be wide open.

In this open state, for example, if jammed paper generated at the fixing roller pair 260 portion is pulled out in the direction of the arrow, it can be easily removed. Also, jammed paper generated at the photoreceptor 150 can be easily removed by pulling it out in the direction of the arrow. In addition to being easy to remove such jammed paper, it is also extremely easy to maintain the equipment.
All you have to do is turn 2.

In Figure 1, the current unit 47 located on the right inside the printer body is the current unit 48. Toner cartridge 49. From the toner agitation member, doctor field 51, and 11th effect three-dimensional 17, etc.'! Jf*
The phenomenon unit 47, together with the cover 56, can be taken out of the Primetoon together with the photoconductor unit 54, whose main component is the photoconductor 15, to the right in the figure. In this state, the upper side of the area from the recording paper feed conveyance system to the transfer charger 18 is
It is widely open to the public, making maintenance and inspections easier.

In addition, this printer uses a system in which the paper feed tray 2 is left attached unless there is a special need.
To replenish the recording paper, open the cover 55 by rotating it upward about the fulcrum 55a, and then slide the recording paper over and over again to avoid the hassle of the paper feed tray 2. This eliminates the need to put on and take off.

In Figure 1, the grid circuit boards 31a and 51o of the controller 61, including the pre/rear control circuit board 64, can be taken out of the device on the left side along with the 7-fold frame 36. In this case, each board may be configured independently and only the necessary board may be taken out. In addition, ``6 original unit 63. Printer control circuit board 4. The controller 61, the fan device 35, etc. may be housed in a unit box, and the unit box itself may be taken out of the device.

By the way, in this pre/re, the controller 31
Since it is configured to be arranged at the lower part of the pre-liquid device, it has the advantage that the two parts can be expanded downward as desired. That is, if the configuration is as shown in Figure 4, the number of grid circuit boards can be increased. In this example, two substrates 31c and 31d are added, but this number is arbitrary. In addition,
Along with this expansion, the height of the printer can be adjusted to an appropriate value by attaching a 4] 56 as shown by reference numeral 56.
I. Be able to arrange it. Such expansion can be immovably coupled by arranging the controller at the bottom of the device.

By the way, in Figure 1, the top 111 of the shielding wall 32a
Each equipment group located at 1 is attached to unit side plates 57 and 58 shown in Fig.
This base portion 62 is placed on top of the unit 7) 4
It is designed to receive heavy objects such as 1111 plates 57 and 58 and various equipment groups.

In Fig. 1, the static elimination wrap 59 and the reinforcing stay 62 to which the earthing plug/60 whose tip is in contact with the photoreceptor 15 are attached, and the guide rail 64 of the charger 16 are shown.
The reinforcing stay 66 for attaching the transfer charger 18, the guide rail 65 for the transfer charger 18, etc. are suspended horizontally between the unit side plates 57 and 58, as shown in Figure 5. This ensures a certain level of rigidity and strength. In addition to securing such strength, the reinforcing stays 62 and the like also serve as attachments for devices such as the static eliminator 59, thereby reducing the number of parts and reducing the amount of equipment required. In addition, the metal base 52 and the lead frame 66 for attaching the controller 51 and the like also contribute to ensuring the strength of the base portion 620. In addition, in the /- lead frame 66 made of metal, this -Kl) is connected to the ground side of the picture □□□ formation -'AtS, simplifying the grounding system and ensuring its reliability. There is.

In Figure 1, the lever 66 placed below the paper feed section is rotated counterclockwise via a reduction gear or the like by the driving force of a motor (not shown) while in contact with the bottom plate 6. , With the decrease in recording paper, the bottom plate 3? It's meant to be pushed up. Further, the recording paper finish detection lever 67 which is in contact with the upper surface of the recording paper 4 falls under its own weight when the recording paper runs out, and cooperates with the photointerrupter 68 to detect the recording paper finish.

(Effects) As described above, the present invention inverts the recording paper that has passed through the image forming section and stores it in the recording paper ejection/storage section. H
Since it is equipped with a control device that converts it into a signal for one picture, it is easy to handle the recording paper, it is possible to align the pages of the recording paper, and the device itself is made more compact. At the same time, by eliminating the exposed signal line, the reliability of the device can be further improved.

[Brief explanation of drawings]

〕・Figure 1 is a cross-sectional configuration diagram of a printer according to the device of the present invention, 〕
・Figure 2 shows the cover with the recording paper ejection path etc. opened, Figure 6 shows the cover and electric layer unit rotated open, and Figure 4 shows the controller expanded. Figure 5 is a sectional view of a main part of the actual example, and Figure 5 is a perspective view of a unit side plate to which a group of equipment for image formation is attached. 15... Photoreceptor, 25... Recording paper ejection path, 27...
・Output tray, 6 trays/troller

Claims (1)

[Scope of Claims] 1. A recording paper discharge path for reversing the traveling direction of recording paper as it passes through an image forming section where image recording is performed, and a recording paper discharged from the recording paper discharge path. A recording paper ejection/storage section for receiving paper is provided, and a control@1 device for converting code information into an image signal is disposed in a part of the apparatus on the opposite side facing the recording paper ejection/storage section. Features of the image recording device. 2. The image recording device according to claim 1, wherein the recording paper ejection/storage section is provided in the upper part of the device, and the control device is provided in the lower part of the device. 68. The image recording device according to claim 1, wherein the control device and the image forming section are isolated from each other. 4. The image recording device according to claim 2, wherein the control device is expandable downward from the bag tube.