JP2997271B2 - Film feed error detection device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a film feeding abnormality detecting device for detecting a film feeding abnormality in a camera.

"Prior art and its problems" Recently, an increasing number of cameras are equipped with an auto-loading and auto-winding device that automatically performs film loading, winding and rewinding by a motor.

To load a film into a camera of this type, open the back cover of the camera, set the patrone, pull out the film from this patrone, put the tip of the film on a sprawl, align the perforation with the sprocket teeth. All you have to do is close the back cover. When the back cover is closed, a predetermined number (usually 4) of films are automatically fed, so-called loading and cueing are completed,
The shooting preparation is completed.

When the release button is pressed and the photographing (exposure to the film) is completed, the film is automatically wound up by one sheet so as to be ready for the next photographing.

However, in such a conventional camera, even after the film is loaded, even if the user closes the back cover in a state where the perforations are not properly engaged with the sprocket, whether or not the film is actually fed is determined. Regardless of this, a predetermined number of winding processes are performed.

Also, even when shooting, the perforation may come off the sprocket for some reason,
In the case where the film is cut, the photographing process and the winding process are performed irrespective of whether the film is actually fed.

Therefore, when the film is not fed from the time of loading the film as in the former case, the user shoots without knowing the fact, and as a result, 1
There was a situation where no photos could be taken.

Also, when the film is not fed in the middle of shooting as in the latter case, the user shoots without knowing that, resulting in unintended multiple shooting. There was something.

"Object of the Invention" The present invention has been made to solve the above-mentioned conventional problems, and detects whether or not a film is actually fed, and improves the reliability in photographing by a camera. It is an object of the present invention to provide a film feeding abnormality detecting device.

[Summary of the Invention] In the present invention, it is configured to detect whether or not a film is actually fed, an exposure means for exposing the film, and a loading means for detecting whether or not the film is loaded. Detecting means, film feeding means for feeding a film, film feeding detecting means for detecting whether or not the film is fed, loading of the film, display means for displaying a feeding state, In the state where the loading detection unit detects that a film is loaded, when the film feeding detection unit detects a film feeding abnormality during execution of the film feeding process by the film feeding unit, A control unit for disabling the operation of the exposure unit and displaying a feeding abnormality by the display unit.

As a result, after the film is loaded, photographing is not performed without feeding the film at all, and unintended multiple photographing is not performed.

"Examples of the Invention" Hereinafter, examples of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a film feeding abnormality detecting device according to the present invention.

When a camera is loaded with a patrone, the control unit 10 as a control means includes a DX contact 14 as a loading detection means which is turned on based on information such as film sensitivity (ISO) attached to the surface of the patrone. The DX contact 14 allows the control unit 10 to detect whether or not the cartridge is loaded.

Further, a film running detection switch (film switch) 16 as a feeding detecting unit and a film winding completion detecting switch (winding end switch) 18 as a film winding completion detecting unit are connected to the control unit 10. .

The film switch 16 has a roller section that rotates in contact with the film, and a switch section that is turned on / off by the rotation of the roller section.
Turn ON / OFF (refer to the timing chart in FIG. 5).

The winding end switch 18 is turned on when a mirror (not shown) has risen to a position near the completion position after the release, and when mechanical charging of the mirror is completed (for a single-lens reflex camera, the shutter mechanism constituting the exposure means). It turns off when the winding is completed.

By these switches 16, 18, the control unit 10 detects whether or not the film is actually fed.

Further, the control unit 10 includes a release switch 20 for activating a shutter mechanism and an aperture mechanism as exposure means.
Back cover switch 22 that turns on when the back cover is closed
Is entered.

The control unit 10 also includes a release magnet 24 for performing a release process, an aperture magnet 26, a front curtain magnet 28 and a rear curtain magnet 30, a wind motor 32 as a feeding unit for performing a film winding and rewinding process, and a display unit. A display control unit 36 for driving a liquid crystal display (LCD) 34 is connected.

The control unit 10 performs a control operation as described below. When the film is loaded and the back cover is closed, the back cover switch 22 is turned off.
Becomes ON from. In this state, the main switch (not shown)
If is ON, the power is turned on. Since the film number counter data is internally cleared when the back cover is open, the cueing process is started, the release magnet 24 and the wind motor 32 are controlled, and cueing of the film is started. At that time, by monitoring the film switch 16, display data corresponding to the feeding state is output to the LCD 34,
Display it. Then, under the control of the wind motor 32, the number of films is counted when the winding completion switch 18 is turned from ON to OFF.

The release control and the control of the wind motor 32 are repeated, and the number of films is counted when the winding completion switch 18 is turned from ON to OFF. Then, when the film counter reaches 4, that is, when the film is wound up by four, the wind motor 32 is stopped to complete the cueing.

After the cueing is completed, each time the release switch 20 is turned on, the release magnet 24, the aperture magnet 26, the first curtain magnet 28, and the second curtain magnet 30 are sequentially driven to perform exposure control, and after the exposure, the wind motor 32 is turned on. Start up and wind up one film. At the time of film winding, a film feeding abnormality is detected by monitoring the film switch 16, and if there is an abnormality, a predetermined display is displayed on the LCD.

The configuration of the film feeding abnormality detecting apparatus according to the present invention is as described above, and the schematic operation and the like of this apparatus will be described below with reference to FIG. 2 and FIG.

FIG. 2 shows an example of a display of a film winding state when a film is loaded.

First, open the back cover of the camera, load the patrone, pull out the film from the patrone, put the tip on the spool, engage the perforation with the sprocket teeth, close the back cover, turn on the power in this state, The cueing is started, the wind motor 32 rotates to perform a predetermined number of constant release processes and film feeding, and the cueing ends when the film is wound up by a predetermined number (normally four).

During cueing, the film switch 16 repeats ON / OFF in conjunction with the running of the film. This ON / OFF is detected by the control unit 10, and a signal thereof is sent to the display control unit 36. Upon receiving this, the display control unit 36 changes the film display units a, b, c, and d to (a), (a, b) in accordance with the number of pulses input with respect to the winding amount of one film. , (A, b, c), (a, b,
Lights up so as to flow in the direction of film movement in the order of c, d), and an indication that the film is actually being fed is displayed (FIG. 2 (A)).

In FIG. 2 (C), [AF] is a focus mode display section for displaying that the mode is the automatic focus adjustment mode.
43, “PROG.” Is an exposure mode display section 44 for displaying that the program exposure is automatic, [1] is a film counter display section 45 for displaying that the number of shots is currently one,
The circle on the left of the film display section a is a patrone display section 46 which lights up when a patrone is loaded, and turns off when the patrone is not loaded to indicate the presence or absence of the patrone.

When the film is not loaded and the film is not actually fed despite the rotation of the wind motor 32, the film running detection switch 16 is turned on / off.
Therefore, as shown in FIG. 2 (B), the display control unit 36 turns on the patrone display unit 46 and turns on the film display unit.
a, b, c, d are not lit at all.

On the other hand, the control unit 10 turns ON the film switch 16 in this manner.
If / OFF is not obtained, it is determined that this is a film feeding abnormality, and after the wind motor 32 is stopped, a feed error signal is sent to the display control unit 36, and the display control unit 36 receiving this signal
Is a film counter display section as shown in FIG. 2 (D).
The display of 45 is set to "E" and blinks. Further control unit
Reference numeral 10 prohibits the operation of the magnets 24, 26, 28 and 30 by the operation of the release switch 20 thereafter (release lock).

In other words, if a film feeding error occurs during cueing, the wind motor 32 is stopped, then the film counter display 45 is set to "E" to blink and warn, and the release operation is disabled. To forcibly prevent the subsequent photographing operation from being performed.

FIG. 3 shows the display on the LCD 34 in a state where the film is wound during normal photographing.

First, when the release switch 20 is pressed, the release magnet 24 and the other magnets 26, 28, and 30 are sequentially controlled, and the film is exposed.

After the exposure, the wind motor 32 rotates to wind up the film, and the film switch 16 repeats ON / OFF according to the feeding of the film. Based on this ON / OFF, the display control unit 36 turns on the patrone display unit 46 in the same manner as during cueing to indicate that the film is actually being fed, and the film display units a, b, and The lighting is performed so as to flow through c and d (FIG. 3 (A)).

When the winding end switch 18 is turned off, the film 1
The control unit 10 determines that the feeding of the
Stop 32. Here, the display control unit 36 increments the display on the film counter display unit 45 by one, and turns on all the film display units a, b, c, and d (FIG. 3C).

On the other hand, if the film is not actually fed even though the wind motor 32 is rotating, the film switch 16 does not normally turn ON / OFF. Therefore, when no pulse is obtained from the film switch 16 during winding, the display control unit 36 does not turn on the film displays a, b, c, and d as shown in FIG. 3 (B).

When the winding of one film is completed, the winding end switch 18
If the ON / OFF change count signal from the film switch 16 does not reach the specified value before the switch is turned off, the control unit 10 determines that this is a film feeding abnormality, and displays this abnormality signal in the display control unit.
36, and the display control unit 36 controls the film counter display unit 45
Flashes (FIG. 3 (D)) to notify the camera user of the occurrence of a film feeding abnormality.

As described above, when a film feeding abnormality occurs, the film display units a, b, c, and d blink and the film counter display unit 45 blinks with "E" when the cueing occurs.
(FIG. 3 (D)), if it occurs after the cueing, the film counter display section 45 is blinked (FIG. 3 (D)) and an alarm is issued.

FIG. 4 is a flowchart showing the main operation of the control section 10 which performs the main control in the film feeding abnormality detecting apparatus according to the present invention. Although this operation flowchart shows a schematic operation, it will not be described in detail, but operates as follows.

First, based on the back cover closing and the number of films <4, when the control unit 10 determines that cueing has been performed (step 51), the control unit 10 performs cueing processing for feeding four films idly (step 5).
2). If the back cover is opened or the number of films ≧ 4, the process proceeds to step 53 without processing.

When the release switch 20 is turned on and the release receiving condition is satisfied (step 53), an exposure process for exposing the film is performed (step 54). Release switch 20
If the release is OFF or the release switch 20 is ON and the release is prohibited until focusing is achieved, the process proceeds to step 55 without processing.

When the exposure process is completed and the winding completion switch 18 is turned on (step 55), the wind motor 32 operates to remove the film.
Winding processing for winding up by the number of sheets is performed (step 56).
When the winding completion switch 18 is OFF, the winding is completed, and the process proceeds to step 57 without any processing.

In step 57, arithmetic processing such as photometry and automatic focusing (AF) is performed. When the process of step 57 is completed,
Returning to step 51, the above processing is repeated.

FIG. 5 is an example of a timing chart showing operation states of switches, motors, and the like at the time of exposure processing and winding processing.

As shown in FIG. 5, when the release switch 20 is turned on, the release magnet 24 is first turned on for a predetermined time, and together with the release magnet 24 being turned off, the front curtain magnet 28 and the rear curtain magnet 30 for controlling the exposure of the film are connected. at the same time
Turn ON to electromagnetically hold the first and second curtains.

Further, the mirror is raised, and an EE pulse is output. When the number of EE pulses is counted and reaches a predetermined number of pulses, the aperture magnet 26 is turned on to hold the aperture at the predetermined aperture. Then, the winding end switch 18 is turned on in the vicinity of the end of the movement of the mirror.

When the mirror is completely raised, the first curtain magnet 28 turns off.
Then, the first curtain runs and exposure starts. Then, when the front curtain has completed traveling during the exposure time, the X contact for outputting the light emission trigger for emitting the strobe light is turned on, and the strobe light is emitted as necessary.

When the exposure time ends, the rear curtain magnet 30 turns off, the rear curtain runs, and the exposure of the film ends.

After the end of the exposure time, the wind motor 32 operates to wind the film, and the mirror is restored at the beginning of the winding.

During film winding, the film switch 16 is repeatedly turned ON / OFF in conjunction with the running of the film. Thereafter, the winding of one film is completed, and the winding of the film is stopped mechanically. When the OFF of 18 is detected, the power supply to the wind motor 32 is stopped, and after a predetermined brake is applied, the wind motor 32 is made free.

FIG. 6 is a subroutine flowchart of a cueing process in the operation flowchart shown in FIG. This cueing process is a process executed when a film is loaded into a camera, and the general operation has been described above, but this operation will be described in further detail.

First, in the first step 61 of the cueing process, the number of sheets (usually four) required for cueing is set, that is, the RAM 1 of the control unit 10
Store in This is obtained by subtracting the current number of films stored in the E ² PROM of the control unit 10 from 4 and counting the number of cueing.
Store in RAM1. In addition, the stores the number of films in the E ² PROM is, cueing the way, or even if the battery is cut off to replace the battery during shooting, film number at the time of battery replacement is in order to prevent disappear. Further, in this embodiment, the number of film feeds from the start of cueing is written in the E ² PROM.

The condition under which the cueing process is called is that the number of films of the E ² PROM <4, so the values stored in the RAM 1 are 1 to 4.

Next, proceed to step 62, check the state of the winding completion switch 18, and if OFF, proceed to step 63 since the winding has been completed.If ON, skip step 63 since the winding has not been completed and proceed to step 64. And proceed.

In step 63, a cueing release process is performed. In other words, the release magnet 24 is energized for 4.5 ms to release the mechanical lock of the mirror, front curtain, and rear curtain, and the front curtain and rear curtain are driven by the front curtain magnet 28 and rear curtain magnet, respectively.
Prohibit by energizing 30 and wait until mirror completes mechanically rising (about 60ms)
Continue to 64.

At step 64, a winding subroutine described later is executed. By this winding process, the film becomes 1
The film is wound up by the number of sheets, and ON / OFF information of the film switch 16 according to the feeding of the film is obtained. Next, the routine proceeds to step 65.

In step 65, a process of inputting DX data is executed.
In this embodiment, as the loading detection means for detecting whether or not a film is loaded, only the presence / absence information of the DX film input here is used. Here, the presence / absence of a cartridge or the presence / absence of a film is determined. Separate switch data may be input and used as loading detection means.

If a DX film is loaded, enter the DX6
Because not all DX2 data are always OFF, it is determined that DX is present and stored in RAM.If all DX6 to DX2 data is OFF, it is determined that there is no DX and stored in RAM. Proceed to 67.

In step 67, it is determined whether or not a load error is immediately detected based on the data of the E ² PROM. If YES, the process proceeds to step 68, and if NO, the process proceeds to step 70. In this determination, if a load error is determined based on the information of the film switch 16 at the time of the first winding, the remaining unnecessary winding can be provided only by rewriting the data in the E ² PROM. It is. However, since the certainty of the loading is higher when the four-sheet winding is performed, either of them can be selected by the E ² PROM.

In step 68, a load error check process described below is executed as a subroutine, and the process proceeds to step 69.

In step 69, it is determined whether or not a load error is detected by the step 68 and the executed load error check processing. If the load error is detected, the subsequent cueing processing is interrupted and the process returns to the calling source. For example, the process proceeds to step 70 to continue the cueing process.

In step 70, the number of releases and windings set in step 61 is counted down (RAM1 ← RAM1-1).
Check if the predetermined number of times has been completed. If the value has not become 0 due to the countdown, step 62
Then, the above processing is repeated, and when the value becomes 0, the processing exits the cue loop and proceeds to the load error check processing which is also used as a subroutine.

In the load error check process, first, in step 71,
The number of changes of the film switch 16 obtained at the time of executing the winding process in step 64 is checked, and whether or not the film is fed is determined by whether or not the number of changes is greater than a predetermined number (3 in this embodiment). to decide. If the film has been fed, the process proceeds to step 72. If the film has not been fed, the process proceeds to step 74.

In step 72, E ² PR indicates that the film has been fed.
Processing for writing to the OM (E ² PROM load bit ← 1) is executed, and the flow proceeds to step 73.

In step 73, it executes the processing (load error bit ← 0 of E ² PROM) in the case where the load error was detected, L
The display during the cueing of the CD 34 (FIG. 2 (A)) is terminated, the normal photographing display (FIG. 2 (C)) is made, and the process returns to the calling source.

In step 74, E ² PR indicates that there was no film feed.
Processing to write to OM (E ² PROM load OK bit ←
"0") is executed, and the routine proceeds to step 75.

In step 75, it is determined whether or not the load detection means has processed DX in step 65. If DX is present, it is determined that the film is loaded, and the load error derived from the absence of the film feeding determined in step 71 is determined. The process is executed in step 76. If no DX is present, no film is loaded, so the flow advances to step 73 to perform the above-described process (FIG. 2 (B)).

In step 76, processing for detecting a load error (E ² PROM load error bit ← “1”) is executed, a load error is displayed (FIG. 2 (D)), and the process returns to the calling source. ^{The 2} PROM load error bit is also used in the determination in step 53 of FIG. 4. When this bit is "1", even if the release switch 20 is turned on, it is not accepted.

As described above, in the present embodiment, when a film feeding abnormality occurs when the DX film is loaded, the display as shown in FIG. 2D is made, the release operation is disabled, and the subsequent photographing is performed. The operation cannot be performed.

FIG. 7 is a subroutine flowchart of the hoisting process in the operation flowchart shown in FIG. This processing is performed when the film is wound up by one sheet after the photographing operation. The general operation of this processing has been described above, and will be described in further detail.

First, in step 81, the ON / OFF memory of the film switch 16 is cleared (A = B = 0), and the film switch change counter is cleared (← 0).

In step 82, the maximum energization time detection timer of the wind motor 32 is set to a predetermined value (1 second in this embodiment) and started. This enables the winding end switch at the end of the film
The overload detection in the case where the response of 18 cannot be obtained is enabled, and the process proceeds to step 83.

In step 83, the energization of the wind motor 32 is started to start winding the film, and the process proceeds to step 84.

In step 84, a process for inputting the switch state of the film switch 16 and the winding end switch 18 without chattering, specifically, performing 200 data inputs at 10 μS intervals, Is performed, and the routine proceeds to step 85.

In step 85, based on the data obtained in step 82, if the winding completion switch 18 is OFF without chattering (OFF data count number = 200), the process proceeds to step 97, and the energization of the wind motor 32 is performed. finish. If the winding end switch 18 has not been turned off without chattering (OFF data count # 200), the process proceeds to step 86.

In step 86, the ON count data of the film switch 16 detected in step 84 is checked. If the film switch 16 is ON without chattering (ON count = 200), the process proceeds to step 87; otherwise, the process skips step 87. To step 88.

At step 85, a storage process (A ← 1) indicating that the film switch 16 has been turned on is executed, and the routine proceeds to step 88.

In step 88, the OFF count data of the film switch 16 detected in step 84 is checked. If the film switch 16 is OFF without chattering (OFF count = 200), the process proceeds to step 89; otherwise, the process skips step 89. To step 90.

The ON / OFF storage processing in steps 86 to 89 is processing for detecting the rising and falling of the pulse shown in FIG. 5, and the actual pulse rising and falling counting processing is as follows. Is executed.

In steps 90 and 91, it is determined whether or not the pulse of the film switch 16 has risen or falls, based on whether or not the change state of the ON / OFF film switch 16 has been stored before that. If there is a rise or fall (A = B = 1), the process proceeds to step 92; otherwise, the process proceeds to step 93.

In step 92, the memory bits A and B are cleared to detect the next change of the film switch 16, and the number of film switch changes is counted up by the falling or rising of the film switch 16 this time. The display of the feeding state corresponding to the number of changes is performed.
That is, the film display units a, b, c, and
A process for sequentially turning on d is performed, and the process proceeds to the next step 93.

The correspondence between the film switch change count data and the lighting of the film display units a, b, c, and d is as shown in the table below.

Then, in step 93, it is determined whether or not the film switch 16 has been changed to a little more than the number of times the film switch 16 has changed less than seven times. If the number of times is equal to or more than the number of times, the process proceeds to step 95; otherwise, the process proceeds to step 94.

In step 94, it is checked whether or not the time of the overload detection timer started in step 82 has expired. If not, the process returns to step 84. Proceed to.

In steps 95 and 96, since the winding is almost completed, the chattering elimination time of the winding completion switch 18 is omitted, and the detection of the winding completion switch 18 and the time over is completed. By doing so, the top speed can be increased during continuous release,
Even if the winding end switch 18 has chattering and the energization of the wind motor 32 is stopped, the winding is completed by the mechanical inertia force, so that no malfunction occurs. Steps 95 and 96 exit when the winding end switch 18 is turned off.
In the case where F has been performed or the time over has been detected, the process proceeds to step 97 at this time.

In step 97, the winding motor 32 is energized in the hoisting direction.
The brake is turned off, the film feeding operation is completed, and the routine proceeds to step 98.

At step 98, the E ² PROM load OK bit set during the cueing process is determined as the film loading detection means. If the loading OK bit is “1”, it is determined that a film is loaded, and the process proceeds to step 99. When it is "0", the process proceeds to step 101.

In step 99, the number of changes of the film switch as the film feeding abnormality detecting means is checked, and if the film is normally fed, that is, if the number of changes is at least once in this embodiment, the process proceeds to step 100. Proceed, otherwise proceed to Step 101.

In step 100, since the film feeding abnormality (perforation break) from steps 98 and 99 is determined, the display control unit 36 displays the film counter display unit 45 of the LCD 34.
Is blinked without counting up (FIG. 3 (D)), and the process returns to the calling source.

In step 101, the process that the film feeding was normal, that is, the film counter is counted up by one and displayed on the film counter display part 45, and all the film display parts a, b, c and d are turned on. (FIG. 3 (C)) Return to the caller.

As described above, according to the present embodiment, if there is a feeding error, the film display units a, b, c, and d do not blink normally during the film winding operation. I can let you know. Then, since the film counter display section 45 blinks after the winding operation is completed, it is possible to notify the user of the abnormality.

Further, since the release is locked together with the detection of the feeding abnormality, there is no possibility that the user may continue photographing without knowing the abnormality.

Although the present invention has been described based on the illustrated embodiment,
When the feeding abnormality is detected, both the warning on the LCD 34 and the release lock may be performed, or only the warning on the LCD 34 may be performed.

"Effects of the Invention" As is clear from the above description, according to the present invention,
Detects whether the film has actually been fed or not, and if a feeding error occurs, displays the feeding error and disables the exposure. Can be completely prevented, and the reliability in photographing by the camera can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a film feeding abnormality detection device according to the present invention, and FIGS. 2 (A), (B), (C), and (D).
FIGS. 3A, 3B, 3C, and 3C show an example of the display of the film winding state when the film is loaded.
(D) is a diagram showing an example of the display of the film winding state at the time of shooting, FIG. 4 is an operation flowchart of the apparatus shown in FIG. 1, and FIG. FIG. 6 is a subroutine flowchart of the cueing process in FIG. 4, and FIG. 7 is a subroutine flowchart of the hoisting process in FIG. 10 ... Control unit (control means), 14 ... DX contact (load detection means), 16 ... Film switch (feed detection means), 18 ...
... winding end switch (feed detection means), 20 ... switch release (exposure means), 28 ... release magnet (exposure means), 32 ... wind motor (feed means), 34 ... LCD
(Display means), 36 ... display control section (display means), 45 ...
Film counter display, a, b, c, d …… Film display

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B03B 17/18-17/20 B03B 17/00

Claims (6)

(57) [Claims] An exposure means for exposing a film; a loading detection means for detecting whether or not a film is loaded; a film feeding means for feeding a film; and whether or not the film is fed. Detecting means for detecting film loading; displaying means for displaying the loading and feeding state of the film; and film feeding means in a state where the loading detecting means detects that a film is loaded. Control means for disabling the operation of the exposing means and displaying the feeding abnormality on the display means when the film feeding detecting means detects the film feeding abnormality during the execution of the film feeding processing by A film feeding abnormality detecting device. 2. The film feeding abnormality detecting device according to claim 1, wherein said control means is adapted to detect the film feeding error when said film feeding detecting means detects a film feeding error during a cueing process of the film. A film feeding abnormality detecting device for stopping the film feeding operation by the means and displaying only the feeding error on the display means. 3. An apparatus according to claim 1, wherein said film feeding means mechanically charges said exposure means during a feeding operation of one film, and said control means. Counts the number of film feeds when detecting that the mechanical charging is completed,
Further, the control means activates the exposure means each time the film feeding means feeds one film during the cueing process of the film, and the film feeding means operates for a predetermined number of films, and A film feeding abnormality detecting device for stopping the film feeding means when the completion of mechanical charging of the exposure means and terminating the cueing process. 4. A film feed abnormality detecting device for a camera according to claim 3, wherein said control means controls said exposure when said film feed detection means detects a film feed abnormality during a cueing process of the film. A film feeding abnormality detecting device for stopping the film feeding means when the mechanical charging of the means is completed, and displaying only the feeding abnormality on the display means. 5. A film feed abnormality detection device according to claim 3, wherein the camera comprises a E ² PROM, the said E ² PROM, the film feed detection means feeding a film to operate in the indexing process The number of sheets is written, and the control unit executes the cueing process, and the film feeding unit determines that the E ²
A film feeding abnormality detecting device for operating the film feeding detecting means from when the film feeding number written in the PROM has been operated. 6. A film feeding abnormality detecting device according to claim 1, further comprising an E ² PROM, wherein said control means controls said E ² PROM when said film feeding detecting means detects a film feeding abnormality.
A film feeding abnormality detecting device for writing a film feeding abnormality in the EEPROM and disabling the operation of the exposure means and displaying the feeding abnormality on the display means when the film feeding abnormality is written in the EEPROM.