US3865481A

US3865481A - Copying machine equipped with synchronous exposing mechanism

Info

Publication number: US3865481A
Application number: US369177A
Authority: US
Inventors: Takaji Washio; Tatsuo Aizawa
Original assignee: Mita Industrial Co Ltd
Current assignee: Kyocera Mita Industrial Co Ltd
Priority date: 1973-06-12
Filing date: 1973-06-12
Publication date: 1975-02-11
Anticipated expiration: 1992-02-11

Abstract

A copying machine specially adapted to cause both an original and a sensitive paper to reach their respective exposing sections synchronously. The machine then cuts the sensitive paper to the same length as the original. The machine includes first and second original detecting members respectively located immediately upstream of, and at an upstream end of, the original exposing section alongside a passageway for transferring the original, a synchronously transferring roller immediately upstream of said first original detecting member, and a sensitive paper detecting member provided immediately upstream of a sensitive paper exposing section alongside a passageway for transferring the sensitive paper. The supply of sensitive paper is started when the leading edge of the original has reached the second original detecting member and the sensitive paper is cut when the rear edge of the original passes the first original detecting member. The synchronously transferring roller stops rotating when the leading edge of the original has reached the first original detecting member and resumes rotating when the leading edge of the sensitive paper has reached the sensitive paper detecting member.

Description

United States Patent [1 1 Washio et al.

[ Feb. 11, 1975 COPYING MACHINE EQUIPPED WITH SYNCIIRONOUS EXPOSING MECHANISM [75] Inventors: Takaji Washio; Tatsuo Aizawa, both of Osaka, Japan [73] Assignee: Mita Industrial Co. Ltd., Osaka,

Japan [22] Filed: June 12, 1973 [21] Appl. No.: 369,177

Primary Examiner-Richard A. Wintercorn Attorney, Agent, or FirmSherman & Shalloway [57] ABSTRACT A copying machine specially adapted to cause both an original and a sensitive paper to reach their respective exposing sections synchronously. The machine then cuts the sensitive paper to the same length as the original. The machine includes first and second original detecting members respectively located immediately upstream of, and at an upstream end of, the original exposing section alongside a passageway for transferring the original, a synchronously transferring roller immediately upstream of said first original detecting memher, and a sensitive paper detecting member provided immediately upstream of a sensitive paper exposing section alongside a passageway for transferring the sensitive paper. The supply of sensitive paper is started when the leading edge of the original has reached the second original detecting member and the sensitive paper is cut when the rear edge of the original passes the first original detecting member. The synchronously transferring roller stops rotating when the leading edge of the original has reached the first original detecting member and resumes rotating when the leading edge of the sensitive paper has reached the sensitive paper detecting member.

10 Claims, 3 Drawing Figures PATENTEU FEB] 1 75 SHEET 2 BF 2 COPYING MACHINE EQUIPPED WITH SYNCHRONOUS EXPOSING MECHANISM This invention relates to a copying machine equipped with a mechanism for synchronously exposing an original and a sensitive paper automatically fed from a roll of sensitive paper, and more specifically to a device for causing both the original and the roll of sensitive paper to reach the respective exposing sections through the respective transfer passageways with exact synchronization, and cutting the roll of paper to the same length as the original.

Copying machines of the conventional type wherein sensitive paper is automatically supplied from a roll are constructed such that an original detecting switch is provided in the inlet of an original-transferring passageway, and the transfer speeds both at the original transferring passageway and at a sensitive paper transferring passageway are equal because the distance between the original-feed inlet and the center of an originalexposing section is equal to the distance between the sensitive paper cutting position and the center of a sensitive paper exposing section. In operation, when the original pushes the original-detecting switch at the feed inlet, the supply of the sensitive paper is started, and both the original and the sensitive paper reach the respective exposing sections synchronously; Thesensitive paper having the same length as the original can be obtained by cutting a roll of the sensitive paper whenthe rear end of the original has passed the originaldetecting switch and the switch has returned.

However, in these conventional copying machines, the non-synchronization between the original and the sensitive paper or the non-correspondence between the length of the sensitive paper and that of the original occurs when the speed of feeding the original to the inlet fed at a speed slower than the speed of transferring the sensitive paper, the sensitivepaper reaches the exposing section faster than the original, and the roll of the sensitive paper is cut; to a length longer than the original.

With a view to remedying this defect, it was conceived to provide a pair of nip rollers ahead of the original detecting switch, which feed the original at the same speed as the speed of transferring the sensitive paper. However, the provision of the nip rollers lengthens the original transferring passageway, and tends to enlarge the dimensions of the apparatus as a whole;

Furthermore, in copying machines of the conventional type in which a roll of sensitive paper and a sheet of sensitive paper are selectively utilized, it is necessary to make the distance between the feed end of the sheetlike sensitive paper and the center of the sensitive paper-exposing seciton to correspond with the distance between the original feed end and the center of the original-exposing section for synchronous exposure,

and there is the defect that the apparatus becomes larger.

An object of this invention is to provide a copying machine equipped with a synchronizing mechanism for 5 exposure and cutting whereby an original and a roll of sensitive paper can synchronously reach original and sensitive paper exposing sections respectively and the roll of sensitive paper can be cut to the same length as the original, irrespective of the speed at which the original is fed by hand and without the provision of nip rollers.

Another object of this invention is to provide a relatively compact copying machine in which a roll of sensitive paper and a sheet-like sensitive paper can be selectively used.

According to the present invention, there is provided a copying machine comprising a passageway for transferring an original, an original exposing section located alongside the transferring passageway for exposing the original, a mechanism for transferring the original at a predetermined speed through said original exposing section, a first original detecting'member provided near the upstream end of said original transferring passageway, a second original detecting member provided upstream of said original exposing section, and a transferring rollerfor synchronization provided between said first and second original-detecting members; a'p'assageway for transferring a roll of sensitive paper, a sensitive paper exposing secition located alongside the transferring passageway for exposing the sensitive paper, a mechanism for transferring the sensitive paper through the transferringpassageway at the same'speed as that of'transferring the original,.a sensitive paper detecting member provided upstream of said sensitive paperexposing section, a feed mechanism provided at an upstream end of said sensitive paper transferring passageway for delivering the roll of sensitive paper, and a cuttingmechanism for cutting a roll of the sensitive paper delivered by said feed mechanism; the distance between thecenter of said original exposing section and said first original detecting member being equal to that between the center of said sensitive paper exposing sectionand the position at which to cut the roll of sensitive paper, aaid sensitive paper-feed mechanism beginning to feed thesensitive paper when the forward end of the original 'has reached said second original detecting member and ceasing to supply it when the rear end of the original has passed said first original detecting member, said paper cutting mechanism cutting thesensitive paper when the rear end of the original has passed the first originaldetecting member and said synchronizationtransferring roller ceasing to rotate when the forward end of the original has reached said second original detecting member and resuming its rotation when the forward end of the sensitive paper has reached said sensitive paper detecting member.

Other objects of this invention will become apparent from the following description taken with the accompanying drawings in which:

FIG. 1 is a sketch of a copying apparatus in accordance with this invention;

FIG. 2 is'a circuit diagram for controlling the synchronization of exposure and cutting in the copying machine shown in FIG. I; and

FIG. 3 is a sketch of a part of the copying machine in its modified form.

Referring to FIG. 1 which'shows an electrophotographic copying machine equipped with a synchronizing mechanism for exposure and cutting, the copying machine A includes an original transferring mechanism,.'an automatic mechanism for supplyingand cutting sensitive paper, a sensitive paper transferring mechanism, and an optical system for exposure.

The original transferring mechanism consists of a plurality of driven transfer rollers 6 for transferring an original from an original-feeding end 4 through an original-exposing section 5 equipped with a transparent plate and a transfer assisting member 2 having a transferring roller 3 for synchronization and a follow-up roller 6 which are capable of being removed when a thick original is transferred. The sensitive paper feeding mechanism consists of a removable roll of sensitive paper 1, and feed rollers 7-7 for feeding seisitive paper with an electromagnetic clutch 7 The paper feeding mechanism also includes a cutting mechanism 8 which includes a solenoid operated blade. The sensitive paper transferring mechanism includes a plurality of driven rollers 12 for transferring sensitive paper, delivered from the feed rollers 7, at the same speed that the original is transferred through a charging device 9. The sensitive paper transfer mechanism also includes an exposing section 10 equipped with a transparent plate, a developing device 11 and a drying and fixing section 13. The exposing optical system for projecting. an optical image of the original on the surface of the sensitive paper is composed of a map 14, reflective mirrors l5 and 17 and an in-mirror lens 16. g

A detecting member S, is provided substantially at the upstream end of the original transferring passageway in order to control the cutting of the sensitive paper. The transfer passageways for the original and the sensitive paper are formed so that the distance from the detecting member S, to the center of the original exposing section 5 is equal to the distance L, from the paper roll cutting position (the operating position of the cutting mechanism 8) to the center of the sensitive paper exposing section 10. In order to expose the original and the sensitive paper synchronously, a detecting member S, is provided upstream of the center of the original exposing section 5 along the original transferring passageway by the distance I, and the synchronization transferring roller 3 is provided between the detecting members S, and 8,. Furthermore, along the sensitive paper transferring passageway, a sensitive paper detecting member S, is provided upstream of the center of the sensitive paper exposing section 10 along the sensitive paper transferring passageway by the distance 1' equal to the distance I.

The detecting member S, may be of an arbitrary type, for example a microswitch, which detects the passage of the rear end of the original and generates a signal. The detecting members S, and 8, may be of any type, for example, a microswitch, which detects the arrival of the forward ends of the original and the sensitive paper respectively, and generates a signal. The synchronization transferring roller 3 includes a magnetic clutch 3', and by a signal from the detecting member 8,, can stop rotating independently of the driven transfer rollers 6..

The distance between the detecting members S, and S, is preferably minimized because it defines the minimum length of the original with which the synchronization of cutting can be made.

The operation of the cutting andexposure synchronizing mechanism is as follows: When an original is fed by hand from the feed inlet end 4 and the forward end of the original pushes the detecting member 8,, the electromagnetic clutch 3' is actuated by an putput signal from the detecting member 8,, and the synchronization transferring roller 3 begins to rotate. The roller 3 may also be rotated, for example, by a main switch of the copying machine independently of the detecting member 8,. I

When the forward end of the original passes the roller 3 and reaches the detecting member 8,, the electromagnetic clutch 3 becomes inoperative by a signal from the detecting member S,,.whereupon the roller 3 stops rotating, and the transfer of the original is interrupted. Simultaneously, the electromagnetic clutch 7' is actuated by the signal from the detecting member 5,, whereupon the pair offeed rollers 7 begin to rotate and the supply of sensitive paper from the paper roll 1 begins. The original should have at least a length such that when its forward end reaches the detecting member 8-,, the rear end has not yet passed the detecting member S1 When thesensitive paper fed is transferred by the driven rollers 12 and reaches the detecting member 5,, the electromagnetic clutch 3' is again operated by a signal from the detecting member 8, and the synchronizing transfer roller 3 again begins to rotate. Since the distance I between the detecting member S and the center of the original exposing section 5 is equal to the distance 1' between the detecting member 8;, and the center of the sensitive paper-exposing section 10, the forward ends of the original and the sensitive paper arrive respectively at the exposing sections5 and 10 synchronously. Furthermore, when the rear end of the original passes the detecting member 8,, the electromagnetic clutch 7 becomes inoperative by a return signal from the detecting member 8,, and the rollers 7 stop rotating. At the same time, the cutting mechanism 8 is actuated to cut a roll of the sensitive paper. Since the distance between the detecting members S, and S, is equal to the distance between the sensitive paper cutting position and the detecting member 8, and the forward ends of the'original and the sensitive paper respectively pass the detecting membersS, and S, simultaneously, the sensitive paper is cut exactly to the same length as the original by a return signal of the detecting member 8,.

Thus, in accordance with the synchronization control mechanism used in this invention, the transferring of the original is stopped temporarily in the state in which its forward end pushes the detecting member 8,, and by a return signal generated when the rear end of the original has passed the detecting member 8,, the cutting mechanism 8 is actuated. Accordingly, independently of the speed of feeding the original, the sychronization of the cutting of the sensitive paper roll with exposure becomes possible. It is not necessary therefore to provide nip rollers upstream of the detecting member 8,, and the original transferring passageway can be relatively shortened.

In the copying machine of this invention, there can be provided a mechanism by which both a roll of sensitive paper and a sheet of sensitive paper can be selectively utilized. In order to use a sheet-like sensitive paper, a sensitive paper feeding passage 18 having a feed inlet opening adjacent to the feed inlet opening of the original transferring passageway, a change plate 19 for opening and closing the feed inlet opening, and a change lever are provided. A suitable switch (not shown) is provided for rendering the sensitive paper feeding and cutting mechanisms inoperable when the change plate 19 fas been removed by operating the lever 20.

In the conventional copying machine in which a sheet-like sensitive paper is used, the distance L between the original feeding end and the center of the original exposing section should be equal to the distance L between the sheet-like sensitive paper feeding end adjacent to the original feeding end and the center of the sensitive paper exposing section. Furthermore, in copying, the forward ends of the original and the sensitive paper should be exactly registered and synchronously fed to the respective feeding ends of the transferring passageways.

In the copying machine of this invention in which a roll of sensitive paper and a sheet-like sensitive paper can be selectively utilized, the distance L; between the original feeding end 4 and the center of the original exposing section 5 is equal to the distance L, between the sheet-like sensitive paper feeding end and the center of the sensitive exposing section 10, or may be shorter than the latter.

When the original is fed into the originaltransferring passageway prior to the transfer of the sheet-like sensitive paper or substantially synchronously therewith and the forward end of the original reaches the detecting member 8,, the synchronization transferring roller 3 stops until the forward end of the sensitive. paper reaches the detecting member S The distance I between the detecting member S and the center of the original exposing section 5 is equalto the distance I between the detecting member S and the center of the sensitive paper exposing section 10, and therefore, the original and the sheet-like sensitive paper reach the respective exposing section synchronously.

One example of an electric circuit for controlling the apparatus of the invention will be described by referring to FIG. 2.

In this circuit, the. detecting members 8,, S andS consist of microswitches. The c terminals of the switches S andS are connected to an electric source 21. The contact a of the switch S is connected to the terminal 0 of a relay contact r of a magnet relay coil R, and the contact b of the switch 8,, to the terminal c of the switch S The open contact a is connected to an exciting coil 7" for controlling the clutch 7 of the feed rollers 7 and a rectifier SR. The rectifier SR is connected to a condenserC and the magnetic relay coil R which are connected in series. The relay contact r of the magnet relay coil R is connected to one end of a solenoid coil SL for actuating the cutting mechanism 8. The normally closed contact b of the switch S and the normally open contact a of the switch S are both connected to the exciting coil 3" for controlling the clutch 3' of the synchronization transferring roller 3.

The operation of this circuit as applied to the electrophotographic copying machine shown in FIG. 1 will be described hereinafter. The original first trips the switch 8,, and the normally open contact b of the switch S is closed. Current is caused to flow to the solenoid 3" through the normally closed contact b'of the switch S whereupon the transferring roller 3 begins to rotate.

When the forward end of the original pushes the switch S the normally closed contact b is opened, and the open contact a is closed. As a result, the current flow to the exciting coil 3" is stopped, and the roller 3 stops rotating. Simultaneously, electricity is caused to flow to the exciting coil 7" to rotate the sensitive paper feeding rollers 7, and the feeding of a roll of sensitive paper begins. Furthermore, through the closed contact a of the switch S electricity is caused to flow to the magnet relay coil R, and the relay contact r is closed.

When the sensitive paper advances and its forward end urges the switch S the open contact a of the switch S is closed, and electricity is again caused to flow to the exciting coil 3" to rotate the roller again. By this, the advancing of the original is resumed synchronously with the sensitive paper. When the rear end of the original passes the switch 8,, the contact b of the switch S, is opened and the contact a is closed. The relay coil R is maintained in the excited state for a short time by the action of the condenser C even after the contact b has been opened, and the relay contact r is also in the closed state. The contact a of the switch S, is closed immediately after the opening of the contact b, and excites the solenoid SL via the relay contact r. Consequently, the cutting mechanism 8 operates to cut a roll of sensitive paper.

When the rear end of the original passes the switch S and the rear end of the sensitive paper passes the switch S the electrical circuit returns to the original state as shown in FIG. 2.

FIG. 3 shows a part of a modified copying machine in which to utilize a roll of the sensitive paper. When in the conventional copying apparatus, it is desired to inspect or repair the components parts disclosed along the sensitive paper transferring passageway, such as the feed mechanisms 1 and 7, the cutting mechanism 8, the charging device 9 or the exposing section 10, or to remove the jamming of the sensitive paper, the individual mechanisms should be dismounted, and therefore, such a work is complicated and time-consuming. In the improved copying machine of this invention, a part 9' of the charging device 9, a part 10 of the sensitive paper exposing section 10, a part 12 of the sensitive paper transporting roller and a part of the member forming the one side of the feeding passageway for the sensitive paper and the sensitive paper feeding mechanisms 1 and 7, the cutting mechanism 8, and the

change mechanisms

19 and 20 which are located along one side of the transferring passageway are mounted on an independent sub-frameSF which is fixed to the main body of the machine and axially fixed at a support shaft 30. By dint of such a construction, the copying machine can be divided along the sensitive paper transferring passageway, and this is very convenient for'the removal of paper jamming, or the inspection and repair of the machine.

While the present invention has been described above with regard'to an electrophotographic copying machine equipped with a synchronizing exposure mechanism, it should be understood that the invention can be applied to a copying'machine of an arbitrary type in which separate transferring passageways are provided both for the original and a roll of the sensitive paper.

Furthermore, the charging device, the exposing optical system, the developing device, and the transferring mechanisms for the original and the sensitive paper are one example of the mode of practice of the copying machine of this invention, and any known combinations can be used. Thus, it should be noted that the invention is, also applicable to a copying machine in which contact exposure is performed at one common exposing section, instead of the two separate exposing sections as described in the above embodiment.

What we claimed is:

l. A copying machine comprising a passageway for transferring an original, an original exposing section located alongside the transferring passageway for exposing the original, a mechanism for transferring the original at a predetermined speed through said original exposing section, a first original detecting member provided near the upstream end of said original transferring passageway, a second original detecting member provided upstream of said original exposing section and a transferring roller for synchronization provided between said first and second original detecting members; and a passageway for transferring a roll of sensitive paper, a sensitive paper exposing section located alongside the transferring passageway for exposing the sensitive paper, a mechanism for transferring the sensitive paper through the transferring passageway at the same speed as that of transferring the original, a sensitive paper detecting member provided upstream of said sensitive paper exposing section, a feed mechanism provided at an upstream end of said sensitive paper transferring passageway for delivering a roll of the sensitive paper, and a cutting mechanism for cutting the roll of the sensitive paper delievered by said feed mechanism, the distance between the center of said original exposing section and said first original detecting member being equal to that between the center of said sensitive paper exposing section and the position at which to cut the sensitive paper roll, the distance between the center of said original exposing section and second original detecting member being equal to that between the center of said sensitive paper exposing section and said sensitive paper detecting member, said sensitive paer feed mechanism beginning to feed the sensitive paper when the forward end of the original has reached said second original detecting member and ceasing to supply it when the rear end of the original has passed said first original detecting member, said paper cutting mechanism cutting the sensitive paper when the rear end of the original has passed the first original detecting member and said synchronization transferring roller ceasing to rotate when the forward end of the original has reached said second original detecting member and resuming its rotation when the forward end of the sensitive paper has reached said sensitive paper detecting member.

2. The electrophotographic copying machine of claim 1 which includes a plurality of driven rollers disposed alongside the original transferring passageway for transferring the original, a transfer assisting member covering said original transferring passageway and capable of being removed when a thick original is transferred, a charging mechanism along said sensitive paper transferring passageway located between the sensitive paper feeding end and the sensitive paper exposing section, a developing device provided downstream of said sensitive paper exposing section, driven rollers along the sensitive paper transferring passageway for transferring the sensitive paper, and an optical system for projecting an image on the original exposing section on the sensitive paper exposing section.

3, The copying machine of claim 1 which further includes a mechanism for selecting the use of a roll of sensitive paper and a sheet-like sensitive paper, said selecting mechanism comprising a passageway for feeding the sheet-like sensitive paper, a change-over member for opening and closing said feed passageway and means interlocking with the change-over member for rendering the sensitive paper feed mechanism and the cutting mechanism inoperative.

4. The copying machine of claim 3 wherein the distance between the original feeding end and the center of the original exposing section is equal'to, or shorter than, the distance between the sheet-like sensitive paper feeding end and the center of the sensitive paper exposing section.

5. The copying machine of claim 1 wherein the original detecting members and the sensitive paper detecting members are composed of microswitches.

6. The copying mechine of claim 1 wherein said synchronization transfer roller is equipped with an electromagnetic clutch.

7. The copying machine of claim 1 wherein said sensitive paper feed mechanism consists of feed rollers having an electromagnetic clutch, and the cutting mechanism consists of a combination of a solenoid and a blade.

8. The electrophotographic copying machine of claim 2 wherein a part of the charging device located on one side of the sensitive paper transferring passageway, a part of the sensitive paper exposing section, a part of the driven rollers, the sensitive paper feeding mechanism and the cutting mechanism are mounted on a sub-frame independently of the main body of the copying machine, said sub-frame being movably mounted on the main body of the copying machine whereby the the copying machine is separable at least along a part of the sensitive paper transferring passageway.

9. The copying machine of claim 1 wherein said synchronization roller is controlled so that it begins to rotate when the forward end of the original touches the first original detecting member.

10. The copying machine of claim 1 wherein the synchronization transfer roller begins to rotate by a main switch of the copying machine.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,865,481 Dated February 11, 1975 Inventor(s) Takaji WASHIO ET AL It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

'In column 7,. line 41 thereof: cancel "paer" and substitute paper therefor.

Signed and sealed this 8th day' of April 1975.

. (SEAL) Attest: 1

C. MARSHALL DANN v Commissioner of Patents and Trademarks RUTH C. IIASON Attesting Officer FORM PO-IOSO (10-69) USCOMM-DC 60376-P69 tours. .iovmuzuvmamm arm-.uu ism r r UNITED STATES. PATENT OFFICE CERTIFICATE OF CORRECTION Patent N0. 3,865,481 Dated February 11, 1975 Inventor(s) Takaji. WASHIO ET AL It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

In column 7, line 41 thereof: cancel "paer" and substitute paper therefor.

Signed and sealed this 8th day' of April 1975.

. (SEAL) Attest:

C. MARSHALL DANN RUTH C. I IAS ON Commissioner of Patents Attesting Officer and Trademarks FORM PO-1050 (10-69) USCOMM-DC GOBTG-PBD ll-LS. aovmnmzmnmolmzrmsn um .7

Claims

1. A copying machine comprising a passageway for transferring an original, an original exposing section located alongside the transferring passageway for exposing the original, a mechanism for transferring the original at a predetermined speed through said original exposing section, a first original detecting member provided near the upstream end of said original transferring passageway, a second original detecting member provided upstream of said original exposing section and a Transferring roller for synchronization provided between said first and second original detecting members; and a passageway for transferring a roll of sensitive paper, a sensitive paper exposing section located alongside the transferring passageway for exposing the sensitive paper, a mechanism for transferring the sensitive paper through the transferring passageway at the same speed as that of transferring the original, a sensitive paper detecting member provided upstream of said sensitive paper exposing section, a feed mechanism provided at an upstream end of said sensitive paper transferring passageway for delivering a roll of the sensitive paper, and a cutting mechanism for cutting the roll of the sensitive paper delievered by said feed mechanism, the distance between the center of said original exposing section and said first original detecting member being equal to that between the center of said sensitive paper exposing section and the position at which to cut the sensitive paper roll, the distance between the center of said original exposing section and second original detecting member being equal to that between the center of said sensitive paper exposing section and said sensitive paper detecting member, said sensitive paer feed mechanism beginning to feed the sensitive paper when the forward end of the original has reached said second original detecting member and ceasing to supply it when the rear end of the original has passed said first original detecting member, said paper cutting mechanism cutting the sensitive paper when the rear end of the original has passed the first original detecting member and said synchronization transferring roller ceasing to rotate when the forward end of the original has reached said second original detecting member and resuming its rotation when the forward end of the sensitive paper has reached said sensitive paper detecting member.

3. The copying machine of claim 1 which further includes a mechanism for selecting the use of a roll of sensitive paper and a sheet-like sensitive paper, said selecting mechanism comprising a passageway for feeding the sheet-like sensitive paper, a change-over member for opening and closing said feed passageway and means interlocking with the change-over member for rendering the sensitive paper feed mechanism and the cutting mechanism inoperative.

4. The copying machine of claim 3 wherein the distance between the original feeding end and the center of the original exposing section is equal to, or shorter than, the distance between the sheet-like sensitive paper feeding end and the center of the sensitive paper exposing section.