JPS58172676A - Picture recording device - Google Patents

Abstract

PURPOSE:To obtain a picture recording device which prevents toner from being stuck to and deposited on a recording head by eliminating a fluctuation in stylus position on a recording medium surface, rocking the recording head to change the contacting condition between a head surface and the medium surface, and to release the toner stuck to the head surface. CONSTITUTION:The bent recording head 5 rocks through the movement of a pin 34 corresponding to the upward and downward movement of the power shaft of a solenoid type actuator 37. Toner T1 carried by a recording medium 2 sticks to the surface of the recording head 5, but the contacting angle between the recording medium surface and recording head surface varies according to the inclination of the head 5 and sticking toner T2 is released from the head surface. Even while the recording head 5 slants, toner T3 sticks to the head surface, but when the head 5 returns to its normal position, the contacting condition between the recording medium surface and recording head surface changes and the stuck toner T3 is released from the recording head surface. Thus, the sticking and separation of the toner are repeated according to the rocking of the recording head 5 to prevent the toner from being stuck to and deposited on the surface of the head 5.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an electrostatic recording type transfer type recorder.
Regarding.

In general, an endless belt-shaped recording medium consisting of a dielectric layer, a conductive layer, and a base is uniformly charged while being fed in a fixed direction, and then charged in the main scanning direction VC1.
A recording head equipped with a stylus for each line applies a tortoise pressure according to the digital THL information to record '#' on the surface of the recording medium. Formation of an electrostatic m image by removing or reducing the L charge, and developing with toner the surface of the recording medium on which the a image is formed [No 1, usually transferred to #1, and then electrocoated. 1 to record the image by
th Ken record in transcription form by L recording type! In case of l-packing,
After the recording medium surface is cleaned after the transfer, the recording medium is repeatedly applied to the next i-recording process.

However, when using a cleaner to clean the toner remaining on the surface of the recording medium after transfer, is it? It is practically impossible to completely perform the cleaning, and the toner that remains on the recording medium surface even after cleaning is deposited in a layer on the recording head surface, deteriorating the emission characteristics of the stylus and recording. There are problems in that the quality of the mound deteriorates and the surface becomes dirty.

The present invention has been made in consideration of the above points, and provides an m-image recording device which prevents toner from adhering and accumulating on the recording head in an electrostatic recording type transfer type device. It is something.

In the image recording apparatus according to the present invention, the contact state between the recording head track and the recording medium is improved by swinging the recording head so that the stylus position does not change with respect to the recording medium surface. Is there a way to change the flow rate and thereby release the toner temporarily attached to the recording head surface? I try to take it.

In that case, as long as the recording head has a mechanical iC @ scrap + 2 stages, it is undeniable that the stylus position relative to the recording medium will shift slightly due to design reasons or abrasion of the opening part. , If the stylus position relative to the Issyo medium surface changes when the record N is swayed, the record N
If the image is stretched in the direction of the sub-column and the stone 6 is thrown, the quality of the recorded image will deteriorate if the head is oscillated irregularly. Therefore, in the present invention, the recording medium is not fed between pages (even during that time) from the end of page recording to the start of recording of the next page, which does not affect the image recording. The recording head is made to swing according to

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an example of a configuration of an electrostatic recording type transfer type image recording device, in which a belt unit 1 and an endless belt-shaped recording medium 2 in the belt unit 1 are appropriately arranged around the belt unit 1 and an endless belt-shaped recording medium 2 in the belt unit 1. An AC charger 3 for removing dust and a DC charger 4 for charging (circular charger 3.4 [therefore, the uniformity of the recording medium 2 A developing unit 6, a transfer charger 7, and a recording head 5, each of which is removably attached to the main body, has a stylus arranged in an array between two surfaces of the recording medium. The electrostatic recording process system consisting of the cleaning unit 8 and the recording paper 10 in the cassette 9 or the recording paper manually set on the table 11iC are processed at a timing when the leading edge of the recording paper coincides with the leading edge of the image area developed on the recording medium 2. Feed roller 12 or 13 for feeding the paper to the transfer position. A paper feeding thread consisting of a registration roller 14 and a transfer feed roller 15, a belt mechanism 16 for conveying the transferred recording paper, and a fixing unit 17 for attaching the electrical layer treatment to the fed recording paper. , and a transfer row 719 for feeding the recording paper to be subjected to electrolayer treatment to the tray 18. Note that the belt unit 1 includes a drive roller 26. Tenshi Enroller and Idol Roller 2
It is constructed by mounting two endless belt-shaped recording media between 7° and 28°.

Also, 29 in the figure is the back roller of the recording head 5? It shows.

In such a single-picture recording apparatus, in particular, the present invention uses a means for swinging the recording head 5 as shown in FIG. I am trying to set it up. That is, the recording head 5Y, which is formed in the shape of L'F-, is arranged so that the recording head 5Y does not move to the stylus position A when it is tilted as shown by the dotted line in the figure. A rotatable VC is mounted between the fixed bracket and the bracket 31 through 30 shafts protruding from both sides of one end.
-31 is the spirit that works together with the shaft 30 on the recording head 5 side. ), and the other end of the recording head 5? Shaft 3 rotatably attached to the solid side
The actuator 37 is connected to the output of an electromagnetic solenoid actuator 370 through a lever 35 fixed to the rotating shaft 33 and a link 36, and the actuator 37 is turned on and off. The VC is set so that the recording head 5 is oscillated by the movement of the bin 34 in response to the downward movement of the output shaft.

Therefore, the uninvented picture II constructed in this way
Note @ * In the case of tilt, when the recording head 5 is in the normal position as shown in FIG. 3 (a), the toner T1 carried by the recording medium 2 will adhere to the recording head 5. , same reason), the recording head 5
When the surface of the recording medium is tilted, the angle of contact between the second surface of the recording medium and the surface of the recording head 5 changes, and the toner T2 that adhered earlier is transferred to the recording head 5.
Starts to run away from the face. Furthermore, even if the recording head 5 is tilted, the toner T3 will adhere to the surface of the recording head 5 (in this case, the toner T3 will adhere to the surface 19r, which is different from when the recording head 5 is in the normal position). ), as shown in the same figure (C), the ball head 5 is in the normal position.
When the recording medium 2 is returned to its normal position, the contact condition between the recording medium 2 and the recording head 5 is satisfied, and the toner T3 that had previously adhered to the recording head 5 escapes from the recording head 5.

Thereafter, toner adhesion and ridge formation are repeated in response to the rocking of the recording head 5, thereby effectively preventing toner from adhering and accumulating on the surface of the recording head 5. In addition, culvert 5 in diagram 3
Is 1 Sudairas? It shows.

FIG. 4 shows another embodiment for swinging the recording head 5. In this case, the driving force is transmitted from a driving source (not shown) through a belt and a pulley 39. A cam 42 is attached to the output shaft 41 of the rotary clutch, and 43 pins are provided to the recording head 5911 to swing the five recording heads in cooperation with the cam 42, and the actuator 44Y is turned on instantly to retract its output shaft. When the clutch pawl 46 is pulled through the ring 45Y, the half-rotation clutch 40 is released and makes a half-rotation, which stiffens the ball distribution head 5 by the action of the cam 42. When the actuator is turned on next time, it makes a half-rotation. The clutch 40 makes another half turn to return the five recording heads to their normal positions.

In addition, the timing for swinging the self-recording head by 5 V is for each page from the end of recording for one page to the start of recording for the next page, or for every page after recording several pages. Make sure to shake the recording head several times.

Figure 5 shows the timing of various signals when the recording head is oscillated between pages.
indicates the end of recording for each page.
RINT READY indicates that recording is in progress when it is at a high level, and indicates between pages when it is at a low level.
ACTUATER1 is a strobe signal that triggers the actuator 37 in the embodiment of FIG.
ATER2 is actuator 4 in the actual relaxation example shown in Figure 4.
The strobe signals that trigger 4 are shown respectively.

For example, when a recording device receives a PAGE END gi number on a facsimile machine, the 11fi
! *The controller of the recording device (not particularly shown) is PRI
NT READY signal KERO signal bellows level Recording is finished and the page is turned off. At the same time, the controller
In the case of the illustrated embodiment, PRINT READY
When the signal was set to low level, the actuator 37 had been triggered (at this time, the recording head 5 was held at the normal position).
Set ER1 to low level, tilt the recording head 5 between pages, and start recording the next page 1#ICPRINTREA
When the DY ff1 signal becomes high level, the strobe signal 9 ACTUATER 1 is set to high level so that the recording head 5Y is held at the normal position. Also, 44
In the case of the illustrated embodiment, the controller is PRIN
TREADY! When the signal is set to low level, a pulse strobe signal ACTUAT is applied to the actuator 44.
The actuator 44 is instantaneously triggered to tilt the recording head between 5v pages, and when the recording of the missing page starts, the [MttNT REAT)Y signal becomes high level, and the actuator 44 is activated again.
&C pulsed nostrobe @ 9 hctuAtER2
5 of the recording heads to return to the normal position of 11. Note that the characteristics of the flashes in ACTUATERI and ACTUATER2K are shown for each strobe signal when five recording heads are oscillated twice between pages.

As described above, the image recording 1 according to the present invention is an electrostatic recording type transfer type, and is provided with a means for swinging the recording medium from ha to Y pages in the feeding direction. As a result, the record is 11!1liii! This has the distinct advantage that toner deposition on the recording head (I) 1 can be effectively prevented without any deterioration in quality.

[Brief explanation of the drawing]

@ Figure 1 is a front view showing an example of the configuration of a static 1 [distribution type [, J: filter transfer type] recording device, and Figure 2 is a front view showing the swinging means of the recording head according to the present invention. f43 figure (a), (
b), (CD! Simplified diagram showing toner adhesion due to the swinging of the recording head F, Figure 4 is a perspective view showing other rocking means of the recording head, Figure 5 is a simplified diagram showing how the recording head is moved between pages. 2. Recording medium 5. Recording head 37.44.
...Actuator 4o...One-turn clutch Applicant Kiyoshi Torii Figure 2 Figure 3

Claims (1)

[Claims] A transfer type device using the 1-recording method, characterized in that a means is provided for swinging the recording head between pages from the end of recording of Y page to the start of recording of the next page in the feeding direction of the recording medium. Image recording device.