SU1205123A1 - Device for frame electrophoretic developing of charge picture - Google Patents

Abstract

The invention makes it possible to simplify the design of a frame-by-frame electrophoretic display of the charged image and to improve the quality of the image display. The production chamber 1 has a window and is in contact with the electrophotographic film 2. The dispensing system with the drain of the developer 3 is connected to chamber 1 of the feed channels 4 and drain of the 5 propeller 3. The drying system 6 has air suction channels 7 and drying 8 " The upper level of channel 7 is not located below the upper boundary of the window of chamber 1. In channel 5 of the drain, below the zone of its connection with channel 7 a throttle 9 is installed. 1 sludge.

Description

The invention relates to electrophotography, in particular to microfilming on electrophotographic films (EPP), and is intended for the production of electrophotographic microfiches (MF).

The purpose of the invention is to simplify the design and increase the quality of the image generation of the charge.

The drawing shows a diagram of the proposed device.

 The device contains a camera 1, pressing against an ERP 2, metering supply and draining systems of the product 3, connected to the camera 1 of the development by supply channels 4 and the developer’s drain 5, drying system 6 with air suction channels 7 and drying 8. the drain channel pro wittel has a choke 9,

The device works as follows.

After the projection chamber and the ESP unit 2 are brought into contact, a metered amount of propellant is supplied through the channel 4 to the projection chamber, for example, by briefly turning on the pump of the developer supply system 10. The manufacturer fills the window 11 of the development chamber, as well as the initial part of the drying outlet 8, since the choke 9 does not allow the manufacturer to quickly drain out of the chamber. The ESP section (MF frame) is wetted by the developer filled in the window, and the charging image is visualized. Since the drying output channel is directed upwards to levels not lower than the upper boundary 12 of the window (frame), the developer does not flow out of the display chamber through this channel. The time of occurrence is governed by the diameter of the opening of the throttles and the amount of feed of the developer. It was experimentally established that in order to reduce the image flushing and the smudges on the frame of an ESP, it is necessary to ensure that the prod uct is drained from the camera at a speed of no more than 3 cm / s. The optimum diameter of the hole of the throttle corners is 0.5-1.5 mm. After draining the cooler from the chamber, the vacuum pump of system 6 is turned on, and air is pumped from the inlet

VNIIPI Order 8528 / 5L Circulation 447 Subscription Branch ShSh Patent, Uzhgorod, Projecto st., 4

channel 7 through the development chamber 1 and the channel 8. In this case, the developed portion of the ESP is dried, after which the development chamber is separated from the ESP.

The initial turbulent flows during the filling of the chamber window do not lead to a decrease in the image quality, the developer particles deposited on the ESP in the initial stage are still strongly bound by the electrostatic field of the uncompensated charging relief. At the same time, the drying outlet channel contributes to the removal of air bubbles formed during the filling of the chamber.

about the visitor. Further development occurs in a uniform flow of the manufacturer. In the developed area and on the inner walls of the chamber of appearance with a uniform drain, a minimum amount of uniform layer of the developer remains, ensuring optimal conditions for drying. Thus, high quality of the developed image is achieved.

To reduce contamination and ensure prompt preventive maintenance work on cleaning the output channels and drying, the choke is installed directly

at the bottom of the development chamber, for example, with a cap nut.

Claims (1)

Invention Formula five A frame-by-frame electrophoretic display of a charging image, comprising an extension chamber with a window, a metered-dose system, a supply with a drain of the developer, and a drying system of the developed image, characterized in that, in order to simplify the design of the device and improve the quality of the display , the air suction channel, connected to the drain channel of the developer, is introduced into the drying system, with its upper level located not below the upper border of the window of the expansion chamber, and a throttle is inserted into the developer drain channel, installed below the zone of connection of the air suction channel and the drain channel of the developer.