JP2706437B2 - Recording device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus such as an electrophotographic copying machine, a printer, and a facsimile. In particular, the printed sheet is discharged with the recording surface facing down to a discharge tray formed on the upper main body cover of the main body cover, and additional electric components are provided inside the discharge tray. The present invention relates to a recording apparatus provided with an electric circuit board to which a recording medium is attached. 2. Description of the Related Art In a recording apparatus such as a printer, a well-known electrophotographic process such as a Carlson process is executed by a controller provided on the electric circuit board. In this case, recent printers are required to have multiple functions, and it is no longer sufficient if a single electrophotographic process can always be executed. In order to achieve such multi-function,
The main part of the controller must be changed as necessary. When such a change is made, in a conventional printer, all of the electric circuit boards are taken out of the printer and necessary parts are changed, but this operation is very complicated. Further, in the recording apparatus in which the paper discharge tray portion is formed on the upper main body cover, it is difficult to ensure consistency between the paper discharge functionality and the addition and change operability of electric components attached to the electric circuit board. . SUMMARY OF THE INVENTION It is an object of the present invention to easily change a main part of an electric circuit board without deteriorating the paper discharge functionality of a paper discharge tray formed on an upper main body cover. Therefore, it is an object of the present invention to provide a recording apparatus capable of performing many functions with a simple operation. An object of the present invention is to dispose an electric circuit board inside the paper discharge tray so that the electric parts are attached to and detached from the electric circuit board in a vertical direction. An opening / closing member that opens the electric component attached to the electric circuit board to the outside at a portion of the paper discharge tray portion facing the electric component attached to the electric circuit board. This is achieved because the upper surface of the opening / closing member is recessed with a step from the sheet placement surface of the sheet discharge tray. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is a side sectional view of a printer according to one embodiment. In the figure, the printer is an upper unit 20.
And the lower unit 1. Around the drum-shaped photoreceptor 2 disposed in the lower unit 1, a charging and cleaning unit 3, a developing device 4, a toner cartridge 4-
1, an optical device 21 and a transfer device 7 are provided. [0007] A paper container 5 arranged on the right side of the lower unit 1
When the bottom plate 51 in the container 50 is pushed up by the lever 60, the recording paper P stored in the container 0 is lifted upward, comes into contact with the paper feed roller 5, and is sent out by the rotation of the paper feed roller 5. . Reference numeral 61 denotes a rotation center of the lever 60, and reference numeral 62 denotes a recording paper separating device having a friction pad. The recording paper P sent out by the paper feed roller 5 is conveyed between the photoconductor 2 and the transfer device 7 via the registration switch SW1 and the registration roller 6. [0008] During the conveyance process of the recording paper P, the surface of the photoreceptor 2 is uniformly charged by the charging unit 3, the image is exposed by the optical device 21, and the electrostatic latent image corresponding to the image is formed on the surface. An image is formed, and further subjected to a developing operation by the developing device 4, whereby the electrostatic latent image is developed (visualized). The above visible image formed on the photoreceptor 2 is
The sheet P is superimposed on the recording sheet P sent between the photoconductor 2 and the transfer unit 7 and is transferred onto the recording sheet P under the action of the discharge of the transfer unit 7. Thereafter, the recording paper P is discharged in the A direction or the B direction selected by the switching lever 100 via the fixing device 8, the switch SW2, and the discharge roller 9. The recording paper P discharged in the B direction is stacked on a paper discharge tray T. Recording paper P discharged in direction A
Is turned over and discharged onto a reversing paper discharge tray 25-2 formed on the upper main body cover of the main body cover 25. 2
5-1 and 26 are guide members for the recording paper P, and 27 is a paper discharge roller. The upper unit 20 is covered with a main body cover 25, and a frame 24 as a structural member is housed inside the main body cover 25. In the frame 24, in addition to the optical device 21, a power supply device 23 and the like are housed. A chassis 30 is mounted on an upper portion of the frame 24, and a printed circuit board (electric circuit board) is provided inside the chassis 30.
22 are stored. The printed board 22 includes a driver board 22-1 for controlling the operation of the printer and a controller board 22-2. The controller board 22-2 is connected to a not-shown host computer (for example, a personal computer), and drives and controls the optical device 21 based on character information sent from the host computer. In FIG. 1, the recording paper discharged to the reverse discharge tray 25-2 as indicated by the arrow A is placed on the reverse discharge tray 25-2 as indicated by P 'in FIG. The opening / closing member 28 is detachably attached to a paper discharge tray 25-2 formed on the upper main body cover, as will be described later. Between the opening / closing member 28 and the sheet mounting surface of the paper discharge tray. Is provided with a step D, so that when taking out the recording paper P ′ placed on the inverted paper discharge tray 25-2 as described above, a fingertip can be put under the recording paper P ′,
This facilitates the removal of the recording paper P ′. FIG. 3 shows the chassis 30 mounted on the upper portion of the frame 24 in FIG. 1 in detail. The driver board 22-1 and the controller board 22-2 are housed and fixed in the chassis main body 31. Then, the chassis cover 32 is fixed to the chassis main body 31 from above the substrates 22-1 and 22-2 with several screws. Reference numeral 22-3 denotes a printed circuit board, an IC memory, and the like that can be added by the user's selection (hereinafter referred to as a spare board)
It is. The spare board 22-3 is mounted on the controller board 22-2 as needed when the user requests the printer for multi-function. Since the spare board 22-3 is detachable as needed, it is desirable that the spare board 22-3 can be easily handled by the user. Therefore, FIG.
An opening 32-1 slightly larger than the spare board 22-3 is provided in the chassis cover 32 at a position corresponding to the spare board 22-3. This opening 32-1 is closed by the chassis door 33. FIG. 6 shows the closed state. One end 33-1 of the chassis door 33 is fitted into the positioning hole 32-2 of the chassis 32.
The leaf spring 33-2 fits into a bent portion 32-3 provided around the opening 32-1 of the chassis cover 32. The leaf spring 33-2 may be riveted or welded to the chassis door 33, or may be integrally formed of the same member as the chassis door 33. The chassis main body 31, the chassis cover 32, and the chassis door 33 are made of an iron plate or an aluminum plate or the like.
Electromagnetic waves are shielded by covering 1,22-2,22-3 and the like. In addition, the chassis main body 31 is provided with a hole for drawing an electric wire therein as appropriate. As shown in FIGS. 4 and 5, an opening 25-3 is formed in the cover 25 at a portion corresponding to the upper part of the chassis door 33.
Is provided. The cover opening 25-3 is closed by the opening / closing member 28. The opening and closing member 28 includes a hook 2
8-1 and 28-2 are formed, and these opening and closing members 28 are attached to the main body cover 25 by fitting these hooks to the edge of the opening 25-3 of the main body cover 25. When the user needs to extend the function,
To add -3, the opening / closing member 28 is first removed from the main body cover 25. The opening and closing member 28 can be removed by inserting a coin or the like into the groove 28-3 shown in FIGS. Next, when the leaf spring 33-2 of the chassis door 33 is pinched and pulled up, the chassis door 33 is detached from the chassis 30. Thus, the upper part of the position where the spare board 22-3 is to be mounted is opened to the outside through the opening 25-3 of the main body cover 25. Therefore, the user can easily mount the spare board 22-3 at a predetermined position without taking out the entire body cover 25 and further the entire electric circuit board such as the driver board 22-1. In the above-described embodiment, the opening / closing member 28 is attached to a portion that is recessed from the surface of the main body cover 25 with a step D (a recess for facilitating the removal of the recording paper P ′). However, each substrate 22-
There is a case where the opening / closing member 28 and the chassis door 33 cannot be provided in the above-mentioned recessed portion due to the arrangement of the components 1, 22, and 22-3. In this case, the reverse discharge tray 25-2
In order to prevent the leading end of the recording paper P 'discharged to the opening / closing member 28 from catching on the opening / closing member 28, for example, the upper surface of the opening / closing member 28 is slightly lower than the upper surface of the inverted paper discharge tray 25-2 and the upper surfaces of the other main body covers 25. good. According to the present invention, in the recording apparatus in which the paper discharge tray is formed on the upper main body cover, the main part of the electric circuit board can be released to the outside by opening and closing the opening and closing member. Very easily add electrical components such as spare boards
This can be changed, and smooth discharge of recording paper in the discharge tray unit can be guaranteed.

[Brief description of the drawings] FIG. 1 is a sectional view of a printer according to an embodiment. FIG. 2 is an overall perspective view of the printer. FIG. 3 is an exploded perspective view of the electrical component chassis 30. FIG. 4 is an exploded perspective view of a main part of the upper unit 20. FIG. 5 is an enlarged sectional view of a main part of FIG. FIG. 6 is an enlarged view of a main part of FIG. 5; [Explanation of symbols] P sheet (recording paper) 22-1, 22-2 Electric circuit board 22-3 Spare board (electric component) 25 Body cover 25-2 Tray Unit (Reversed Output Tray) 28 Opening / closing member

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display location G03G 15/00 530 B65H 31/30 H04N 1/00 B41J 29/12 A // B65H 31/30 29/00 S (56) References JP-A-60-263958 (JP, A) JP-A-61-32865 (JP, A) JP-A-61-2955753 (JP, A) JP-A-62-35353 (JP, U) Sho-55-155249 (JP, U) Sho-kai 61-15884 (JP, U) Sho-kai 61-201055 (JP, U) Sho-kai 61-182546 (JP, U) Tokiko 7-89261 JP, B2)

Claims (1)

(57) [Claims] (1) A sheet on which recording has been performed is discharged with a recording surface facing down to a paper discharge tray formed on an upper main body cover of the main body cover, and the paper discharge tray is formed. A recording device provided with an electric circuit board on which an expandable electric component is mounted, wherein the electric circuit board is attached to and detached from the electric circuit board in a vertical direction. An opening / closing member that is disposed inside the paper discharge tray portion and that faces the electric component attached to the electric circuit board in the paper discharge tray portion is provided with an opening / closing member that opens the electric component to the outside. A recording apparatus characterized in that an upper surface of the opening / closing member is recessed with a step from a sheet mounting surface of a sheet discharge tray section.