JPS5859873A - Recording device - Google Patents

Abstract

PURPOSE:To prevent a recording paper from being absorbed on a feeder due to static electricity, and to deliver the paper to a paper delivery tray without fail, by a method wherein a hole is made in a feeder located just before the paper delivery tray to blow wind out from a fan. CONSTITUTION:One of the recording papers in the cassette 1 is supplied when a pick-up roller 5 is rotated. Then, the paper is registed by timing rollers 6A and 6B, delivered through feeders 17-19. In this time, the recording paper is absorbed on a porous suction plate 21 by a fan blowing wind in the arrow A direction. Thus, the paper keeps its flatness, and is recorded by a recording head 23. The recorded paper is delivered to a feeder 26A through pick-up rollers 9A and 9B, where the paper is not absorbed on the feeder 26A even if it bears static electricity because the fan 21, through the wind hole 27, blows off the static electricity. Thus, the paper is delivered to a paper delivery tray 3 (upper lid 4 of the cassette 1) without fail.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording apparatus, and more particularly, to a recording apparatus that reliably discharges recorded recording paper to a paper discharge tray.

The recording paper stored in the paper cassette is conveyed to the recording section while being held between rubber rollers, metal rollers, etc., and recorded.
In a recording apparatus in which the recorded recording paper is ejected to a paper ejection tray by the above-mentioned row 2 or the like, the recording paper is likely to be charged with static electricity due to the friction 11 between the row 2 and the recording paper. Therefore, when paper is ejected, the recording paper tends to be attracted to the conveyance path immediately after the paper ejection roller or in front of the paper ejection tray, so that the paper cannot be reliably ejected to the paper ejection tray.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording apparatus which eliminates such conventional drawbacks and allows recorded recording paper tm to be actually discharged onto a paper discharge tray.

In the present invention, air is blown to the conveyance path immediately in front of the paper discharge tray to prevent recording paper from being attracted to the conveyance path even if it is charged with static electricity.

Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 1 shows an embodiment of the present invention, where l is a paper cassette in which recording paper λ is stored.

The paper cassette L has a top lid # that also serves as the paper ejection tray J.
This upper lid prevents the sound of dirt and lint from entering the cassette/cassette. ! is the paper feed roller, and roller!
is pressed against the recording paper while rotating, thereby feeding the recording paper λ'1k one by one. Ting rollers AA and 4B are rotated in synchronization with reading by a document reader 5 (not shown), thereby synchronizing the recording position on the recording paper and the reading position in the reading section.

7A~/σ person and 7B~/DB are conveyor rollers, //
~ Slag is the conveyance path/7. /r and /def: Conveyance path S material to be formed, recording paper fed from cassette)/ is conveyed via these rows 27A to 10A, 7B-/(IF5 and conveyance path 17 to /de) . Put on the board JK&, check the flatness of the paper and head 22.
Distance between 2J and recording paper! Keep it constant. Further, 3 and B are elastic paper conveyance guides g! which form a conveyance path.
There is a barrier between the signboard X and the thickness smaller than the thickness of the recording paper.
Set it up.

Further, reference numeral ``mu'' is an air blowing guide, which causes the air discharged from the fan l to rise along the guide bulge, and is blown as shown by the arrow B from an opening r formed in the conveyance path AK at the upper part of the guide.

FIG. 4 is a perspective view of the recording apparatus of FIG. 1 viewed from the recording head side, and the present invention will be described in further detail with reference to FIG. 2. Here, the recording head n is an inkjet head that performs red recording, and the head n is an inkjet head that performs black recording, and a signal from a reading section (not shown) is converted into a value signal by a control circuit (not shown), and any one of them is used as desired. Red and black recording can be performed by driving one head 1 or both heads. In addition, these recording heads 22, 2J, rows 7A to 1σ, 7B to 70B,
It is assumed that the transport guides 2#, B, the fan 1, the ventilation guide, etc. are supported by support means (not shown). That is, in the present invention, the suction plate X is fixed. Also, among the ventilation holes 1 made in the suction plate Make it smaller than the width dimension,
To eliminate the possibility that the leading corner of the recording paper λ enters a hole I when conveying the recording paper 2, causing flapping noise, speed fluctuation, or jamming. Also,
A plurality of openings l of the conveyance path A formed in the upper part of the air guide 1 are made in the width direction of the recording paper sheet, and the width dimension thereof is made smaller than the width dimension of the recording paper sheet. This opening at the tip? 7. Figure 3 shows the details of the gap between the suction plate and the conveyance guide 2 and B. In the embodiment of the present invention, the thickness of the paper is made smaller than the thickness t of the paper. I'll keep it.

The operation of the recording apparatus configured as described above will be explained with reference to FIG. 1 and the top of FIG. First, when the document reading section (not shown) starts reading the document, the paper feed low? J (FIG. 1) starts rotating, and the recording paper in the cassette L is fed by a length of 1, and is registered with the tie-back glow 21 and 1B. At this time, the blower fan 1 is also driven. here,
26 and 4 tine glows in synchronization with document reading
When the leading edge of the recording paper reaches the recording head B, the recording head n is started to drive and an image is recorded. The read information sound may be stored and recorded in a memory once.

Here, when the recording paper λ is conveyed to the recording head n via the conveyance path n and /It-, the conveyance guide plate and the suction plate
The recording paper is squeezed in the gap between the two and any curls etc. from the recording paper are removed. Further, since the maximum width of the opening 1 of the suction plate X is smaller than the width of the recording paper λ, there is no risk that the leading end corner of the recording paper λ will enter the opening I. Therefore, when recording with the recording head, the recording paper is reliably attracted to the suction plate 37 to maintain the desired flatness, and furthermore, the gap between the recording head n and the recording paper i is maintained at a constant distance. Therefore, you can expect the same recording quality.

The recorded recording paper λ that has been recorded by the recording head n is
Conveyance rollers A, 5'B, conveyance path 19 and conveyance roller c
)/σA, /(The paper is ejected after 7Bi, but the transport roller/
In σ, a ventilation opening 1 is opened in the conveyance path A immediately after 10B, and the wind from the ventilation fan L is sent upward, so even if the recording paper is charged with static electricity, the ventilation will not be blown. The recording paper is not used to being attracted by the conveyance path of the guide AK, and the recording paper is reliably ejected to the paper ejection tray 3.

In addition, since the paper output tray J uses the top surface of the cassette/top M, there is no need to provide a separate paper output tray.
This leads to a reduction in the number of parts, which also makes it possible to reduce costs.

As described above, according to the present invention, recording paper can be reliably ejected to the paper ejection tray without providing a charge eliminating bar or the like on the conveyance path near the paper ejection tray.

It goes without saying that the present invention can be applied to any type of recording device, copying device, or printing device in which recording paper is conveyed entirely by being held between rubber rollers or metal rollers 2III.

[Brief explanation of the drawing]

FIG. I is a configuration diagram showing an example of the configuration of the recording apparatus of the present invention, FIG. 1 is a perspective view thereof, and FIG. 3 is a detailed diagram illustrating a conveyance guide. l...Paper cassette, recording paper. 3... Paper output tray, see... top l [, j...
・Paper feed roller, t▲, 4B-・Tie《Nglow-2, 7A~/Ok, 7B-ION...Conveyance parts, /l-/t<, 1 conveyance path member, /7-/? -Conveyance path. 〃・1 suction plate, 1・1 blower fan, sword, n・
... Recording head, 3,25... Conveyance guide, κ
...Blower guide, Bu A, one conveyance path, 1...opening, 1 hole. Patent applicant Canon Inc. ION-

Claims (1)

[Claims] In a recording apparatus that transports recorded paper while being held between a recording paper tube transport roller and performs recording on a recording means, the recorded recording paper is discharged to a paper output tray. and an air discharge means for discharging the air blown from the air blowing means, and when the recording paper is stored in the paper ejection tray, the air flow from the air blowing means is conveyed through the air ejection means. A recording apparatus characterized in that the recording paper is ejected onto a path so that the recording paper is not attracted to the conveyance path.