SU879550A1

SU879550A1 - Electrographic copying machine

Info

Publication number: SU879550A1
Application number: SU802873284A
Authority: SU
Inventors: Геннадий Бениаминович Берлин
Original assignee: Специальное Конструкторское Бюро Оргтехники
Priority date: 1980-01-21
Filing date: 1980-01-21
Publication date: 1981-11-07

Description

Изобретение относится к области , электрофотографии и может быть использовано в копировальных аппаратах с ленточным промежуточным носителем.The invention relates to the field of electrophotography and can be used in copiers with a tape intermediate medium.

Известей электрофотографический аппарат, наиболее близкий по техничес- 5 кой сущности и достигаемому результату к описываемому изобретению, содержащий связанную с блоком управления систему некадрового экспонирования, натянутый на ролики, один из которых связан с приводом, а два других смонтированы на подвижной каретке, элемент торможения носителя, связанный с блоком управления, и средство для, возврата каретки в исходное положение [1] . В известном аппарате осуществлена развезка по скоростям участков ленты носителя находящихся в зоне экспонирования и в других технологических зонах. Это позволяет во время некадрового экспонирования при остановке тормозным элементом участка ленты в эоне экспонирования обес— печить равномерное безостановочное перемещение участка ленты в зоне технологических устройств.Lime electrophotographic apparatus, the closest in technical essence and the achieved result to the described invention, containing a non-frame exposure system connected to the control unit, stretched on rollers, one of which is connected to the drive, and the other two are mounted on a movable carriage, a carrier braking element associated with the control unit, and means for returning the carriage to its original position [1]. In the known apparatus carried out the distribution of the speed of the sections of the tape carrier located in the exposure zone and in other technological areas. This allows during non-frame exposure when the brake element stops the portion of the tape in the exposure aeon to ensure uniform non-stop movement of the portion of the tape in the zone of technological devices.

Недостатком указанного аппарата является то, что его конструкция предусматривает большое количество перегибов гибкого носителя, кроме того, роликовые держатели, установленные на каретке, контактируют с фотопроводящей поверхностью Денты; это приводит к сильному истиранию промежуточного носителя и к усложнению конструкции.The disadvantage of this apparatus is that its design provides for a large number of bends of the flexible carrier, in addition, roller holders mounted on the carriage are in contact with the photoconductive surface of the Dent; this leads to severe abrasion of the intermediate carrier and to complicate the design.

Целью изобретения является упрощение конструкции аппарата и назначе ния тиражности промежуточного носителя.The aim of the invention is to simplify the design of the apparatus and the purpose of the circulation of the intermediate medium.

Указанная цель достигается тем, что размещенные на каретке ролики расположены внутри контура носителя.This goal is achieved by the fact that the rollers placed on the carriage are located inside the media path.

Средство для возврата каретки в исходное положение выполнено в виде пружины.Means for returning the carriage to its original position is made in the form of a spring.

На чертеже представлена принципиальная схема электрофотографического аппарата.The drawing shows a schematic diagram of an electrophotographic apparatus.

Аппарат содержит оптическую систему покадрового экспонирования 1, промежуточный носитель изображения в виде бесконечной гибкой ленты 2, каретку 3 с механизмом ее перемещения в исходное состояние в виде возвратной пружины 4, опорные ролики 5 и 6, установленные на каретке 3, опорный ролик 7, приводной ролик 8, тормозной фиксатор 9, технологические устройства зарядки 10, проявления 11, переноса 12, закрепления 13, очистки 14 и листоподающего механизма 15,The apparatus contains an optical system for frame-by-frame exposure 1, an intermediate image carrier in the form of an endless flexible tape 2, a carriage 3 with a mechanism for moving it to its original state in the form of a return spring 4, support rollers 5 and 6 mounted on the carriage 3, a support roller 7, a drive roller 8, brake latch 9, technological charging devices 10, manifestations 11, transfer 12, fastening 13, cleaning 14 and sheet-feeding mechanism 15,

В процессе работы перед началом очередного экспонирования, когда каретка 3 достигает своего крайнего правого положения, фиксатор 9 освобождает ленту 2, после чего каретка 3 под действием возвратной пружины 4 перемещается в крайнее левое положение (показано пунктирными линиями), увле- ‘ кая за собой верхнюю ветвь ленты 2, и таким образом подводит в зону экспонирования новый участок ленты. При достижении кареткой 3 крайнего левого положения фиксатор 9 вновь прижимает ленту 2 и фиксирует ее в зоне экспонирования. В процессе перемещения верхнего участка ленты 2 в стартстопном режиме нижний участок под действием приводного ролика 8 перемещается в зоне устройств проявления 11, переноса 12 и закрепления 13 с постоянной скоростью. Во время экспонирования верхний участок ленты 2 находится в неподвижном состоянии, а нижний участок,перемещаясь под действием приводного ролика 8, одновременно перемещает вправо каретку 3.In the process of work, before the start of the next exposure, when the carriage 3 reaches its extreme right position, the latch 9 releases the tape 2, after which the carriage 3, under the action of the return spring 4, moves to the extreme left position (shown by dashed lines), dragging the upper the branch of the tape 2, and thus brings a new section of the tape into the exposure zone. When the carriage 3 reaches its extreme left position, the latch 9 again presses the tape 2 and fixes it in the exposure zone. In the process of moving the upper portion of the tape 2 in start-stop mode, the lower portion under the action of the drive roller 8 moves in the area of the developing device 11, transfer 12 and fastening 13 at a constant speed. During exposure, the upper portion of the tape 2 is stationary, and the lower portion, moving under the action of the drive roller 8, simultaneously moves the carriage 3 to the right.

При достижении кареткой 3 крайнего правого положения цикл повторяется. Описываемое техническое решение позволяет упростить конструкцию аппа5 рата, повысить надежность его работы, улучшить технико-экономические показатели за счет облегчения условий эксплуатации и увеличения ресурса работы промежуточного носителя 10 изображения.When the carriage 3 reaches the extreme right position, the cycle repeats. The described technical solution allows to simplify the design of the apparatus, increase the reliability of its operation, improve technical and economic indicators by facilitating operating conditions and increasing the life of the intermediate image carrier 10.

Claims

(54) an electrophotographic copying invention relates to the field of electrophotography, and may be used in copiers with a belt intermediate carrier Shvestey electrophotographic an Paratov closest as to technical essence and attainable result to the described invention, comprising associated with the control unit non-staff exposure system, tensioned on the rollers, one of which is associated with the drive, and two of them are mounted on a movable carriage, the braking element of the carrier, ny with the control unit, and means for returning the carriage to its initial position l. In the known apparatus, the sections of the carrier tape located in the area of exposure and in other technological zones were distributed over the speeds. This allows a temporary non-frame exposure when the brake element stops a section of the tape in the area of exposure, to ensure a uniform non-stop movement of the section of tape in the area of technological devices. The disadvantage of this apparatus is that its design provides for a large number of bends of the flexible carrier; in addition, the roller holders mounted on the carriage are in contact with the photoconductive surface of the tape; this leads to severe abrasion of the intermediate carrier and to the complexity of the design. The aim of the invention is to simplify the design of the apparatus and the assignment of the quantity of intermediate nigel. This chain is achieved by the fact that the rollers placed on the carriage are located inside the contour of the carrier. The means for returning the carriage to its original position is in the form of a spring. The drawing shows a schematic diagram of an electrophotographic apparatus. 38 The device contains an optical frame-by-frame exposure system 1, an intermediate image carrier in the form of an endless flexible tape 2, a carriage 3 with a mechanism for moving it to its original state in the form of a return spring 4, supporting rollers 5 and 6 mounted on the carriage 3, supporting role1 $ 7 , drive roller 8, brake latch 9, technological devices for charging 10, appearance 11, transfer 12, fixing 13, cleaning 14 and sheet feeding mechanism 15, In operation, before the start of the next exposure, when the carriage 3 reaches its end The right position, the latch 9 releases the tape 2, after which the carriage 3 under the action of the return spring 4 moves to the extreme left position (shown by dotted lines), carries along the upper branch of the tape 2, and thus brings the new plot tape. When the carriage 3 reaches the leftmost position, the latch 9 again presses the tape 2 and fixes it in the area of exposure. In the process of moving the upper portion of the belt 2 in the start-stop mode, the lower portion under the action of the driving roller 8 moves in the area of the devices 11, the transfer 12 and the clamping 13 at a constant speed. During ex-pushing, the upper portion of the belt 2 is stationary, and the lower portion, moving under the action of the driving roller 8, simultaneously moves the carriage 3 to the right. When the carriage 3 reaches the extreme right position, the cycle repeats. The described technical solution allows to simplify the design of the device, increase the reliability of its operation, improve technical and economic indicators by facilitating the operating conditions and increasing the service life of the intermediate image carrier. Claim 1, An electrophotographic copying machine comprising an infinite intermediate image carrier associated with a control unit of a frame-by-frame exposure, pulled up on rollers, one of which is connected to the drive, and the other two are mounted on a movable carriage, a braking element connected to the drive with a control unit and a means for returning the carriage to the initial position, characterized in that, in order to simplify the construction and increase the circulation of the carrier, the rollers arranged on the carriage enes within the carrier circuit.

2. The electrophotographic photocopier pop, 1, is also distinguished by the fact that the means for returning the carriage to the initial position is made in the form of a spring. Sources of information taken into account in the examination 1. US Patent No. 4046473, cl. G 03 & 15/00, 1977.