JPH01135435U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing the first embodiment of the present invention;
FIG. 2 is an external perspective view of the same embodiment, FIG. 3 is a perspective view of the main part of the same embodiment, FIGS. The figure is a circuit block diagram of the same embodiment, Figures 6 1, 2, 3, and 4 are side sectional views of main parts showing the operation of the same embodiment, and Figure 7 is a side sectional view showing the second embodiment of the present invention. Figure 8 is a side sectional view showing the third embodiment of the invention, Fig. 9 is a side sectional view showing the fourth embodiment of the invention, and Fig. 10 is the fifth embodiment of the invention. FIG. 2... Document placement table, 3... Fresnel lens, 5... Transparent document belt, 6... Projection member, 9a-9b... Corner roller, 10... Pulse motor, 13... Hopper, 14... Transparent document sheet, 16... Hopper roller,
22... Sheet discharge port, 23... Stacker, 38... Printer.

Claims (1)

[Claims for Utility Model Registration] 1. Letters on a manuscript table consisting of a Fresnel lens,
A transparent original sheet with images such as symbols and figures written on it is placed, the image on the transparent original sheet is irradiated from the top or bottom, and this reflected light or transmitted light is transmitted through a projection lens and mirror installed above the original table. An overhead projector that projects images on a screen includes: a drive roller arranged in parallel at a predetermined interval at the position of the document mounting table; a drive source that drives the drive roller; and a drive roller that is wound around the drive roller for writing and erasing. An endless transparent original belt, a hopper for setting a plurality of transparent original sheets, a hopper roller for feeding the transparent original sheets from the hopper onto a document mounting table, a drive unit for rotationally driving the hopper roller, and a hopper for setting the transparent original sheets on the hopper. a hopper unit having a spring that presses against the hopper roller; a protruding member formed vertically protruding on the transparent document belt and abutting the leading edge of a transparent document sheet fed from the hopper unit; and a sheet provided horizontally on the document mounting table. A discharge port, a stacker connected to the sheet discharge port to stack and store discharged transparent original sheets, and specifying whether to turn on/off the power, feed or return the transparent original belt, and specify whether to supply transparent original sheets from the hopper unit. , and an operation section with various keys for specifying ejection of the transparent document sheet on the transparent document belt, designation of projection, etc., and the "feed" operation of the operation section drives the drive roller to move the transparent document sheet onto the transparent document belt. The transparent document belt travels in the feed direction, and when the "return" operation is performed, the drive roller is driven to travel the transparent document belt in the return direction, and when the transparent document sheet is "supplied", the hopper roller of the hopper unit is driven. One transparent original sheet in the hopper is fed onto the transparent original belt on the upper part of the original placing table, and when the transparent original sheet is "ejected", the driving roller of the transparent original belt is driven and the transparent original sheet is placed on the transparent original belt. The transparent original sheet is pushed out to the sheet ejection port using the protruding member provided and stored in the stacker, and by the operation of "projection", the image arriving on the original placing table is projected onto the screen using reflected light or transmitted light. Overhead projector with special features. 2. The overhead projector according to claim 1, wherein a plane mirror and a condensing lens are used as the optical system transmission means. 3. The overhead projector according to claim 1, wherein the operating section is a remote control unit. 4. A light source that irradiates a traveling transparent original belt or transparent original sheet, an image sensor that receives this irradiated light and outputs image data, an optical system transmission means that transmits transmitted light or reflected light to the image sensor, and an image sensor that transmits transmitted light or reflected light to the image sensor. It is equipped with a recording means for recording the image data output by the sensor on a copy medium, and when the "copy" operation on the operation unit is operated, the image on the document table is illuminated by a light source while traveling on the transparent document belt, 2. The overhead projector according to claim 1, wherein the transmitted light or reflected light is read by an image sensor and image data is recorded on a copy medium by a recording means. 5. A second light source that illuminates the plain paper on the document mounting table is placed at a position where its reflected light is transmitted to the image sensor by an optical system transmission means, and the light source that emits light during copying is switched to copy the transparent document sheet. 5. The overhead projector according to claim 4, wherein the overhead projector is capable of copying both plain paper and plain paper. 6. The overhead projector according to claim 4, wherein the light source is arranged as a reflective type, and the overhead projector is compatible with copying both transparent original sheets and plain paper.