JPS62133435A - Detecting method for abnormality of driving system - Google Patents

Abstract

PURPOSE:To immediately detect the abnormality of a driving system for film feed by deciding the abnormality of the driving system for film movement when the absolute value of a difference between the interval of blip marks and a value obtained by integrating a film feeding command speed with time until the generation of the succeeding blip mark after the detection of the preceding blip mark is a prescribed value and over. CONSTITUTION:When it is defined that an interval between adjacent blip marks 21 is S1 and a distance S0 at no detection of a blip mark is S0, S0<S1 is formed. When the film feeding command speed is defined as V, a voltage to be applied to a motor 48 or 50 is determined by the V and the winding diameter of a tape 10. The time integration value of the command speed V is defined as S. When ¦S-S1¦>=epsilon, feed abnormality is decided and the feeding of an electrophotographic film 16 is stopped. Since the feed abnormality can be detected every feeding of one frame of the film 16, abnormality such as jamming in film feeding can be early detected and the film 16 can be prevented from deterioration.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a drive system abnormality detection method for detecting an abnormality in a drive system that feeds a roll film in which blip marks are provided in advance corresponding to each frame in the longitudinal direction of the roll film. Regarding the method.

[Conventional technology]

Conventionally, locking current flowing through the film winding motor was detected to detect that the rotation of the motor was restricted.

[Problem that the invention seeks to solve]

For this reason, the restriction could not be detected immediately, and it was not possible to prevent film jamming, etc., which occurs when the film feed amount becomes larger than the film winding amount.

Furthermore, since it is necessary to distinguish between the motor starting current and the locking current, a complicated locking current fi detection circuit must be provided.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, it is an object of the present invention to provide a method for detecting abnormality in a drive system that is simple in structure and capable of immediately detecting an abnormality in a film feeding drive system.

[Means for solving problems]

In the drive system abnormality detection method according to the present invention, the interval between blip marks provided in advance on the film corresponding to each frame and the commanded speed of film feeding from the detection of the blip mark until the detection of the next blip mark are determined over time. If the absolute value of the difference from the integrated value is greater than or equal to a predetermined value, it is determined that the drive system for moving the film is abnormal.

[Effect]

When the actual film feeding speed deviates from the commanded speed to some extent, the absolute value of the difference between these time integral values becomes equal to or greater than a predetermined value, and an abnormality in the film feeding drive system is detected.

Furthermore, since the intervals between the blip marks are relatively short, the abnormality can be detected immediately.

〔Example〕

(Schematic Configuration of Image Information Processing Apparatus) FIG. 1 shows the configuration of a suitable image information processing apparatus using the present invention. In this embodiment, an image of a document 30 is recorded on an electrophotographic film 16. At the same time, the already recorded image is projected onto a screen 40 or copied by a transfer device 46.

The tape 10 has one end fixed to the take-up shaft 12 and the other end fixed to the take-up shaft 14, so that the tape 10 wound around the take-up shaft 14 is pulled out and wound around the take-up shaft 12. It has become.

As shown in FIG. 8, this tape 10 includes an electrophotographic film 16 and a magnetic tape 18 connected by an adhesive tape 20A, and a magnetic tape 18 and a transparent leader tape 19 connected by an adhesive tape 20[3]. has been done.

Blip marks 21 are printed in advance on the upper end of the electrophotographic film 16 at regular intervals, and by counting the number of blip marks 21, it is possible to determine the absolute address of the frame. Frame images 22 are recorded between adjacent blip marks 21. It is not necessary to record the frame images 22 continuously, but at intervals,
It can also be recorded at any location.

As shown in FIG. 1, a process head 24 is disposed facing the electrophotographic film 16, and charges, exposes, develops, dries, and fixes the frame image 22 onto the electrophotographic film 16 (see FIG. 8). reference) are now recorded.

The process head 24 has a lens 26, and the light from the illumination light source 2B is reflected by the original 30, so that an image of the original 30 is formed on the electrophotographic film 16 and exposed.

As shown in FIG. 1, a projection light source 32 and a lens 34 are arranged on the optical axis 35 of the lens 26 on the opposite side of the electrophotographic film 16 from the process head 24.

Note that FIG. 1 shows the configuration in a simplified manner; in reality, a mirror is disposed between the lens 34 and the tape 10 to bend the optical path in the direction perpendicular to the paper surface, and the lens 34
The projection light source 32 is also arranged on this bent optical axis. This allows the tape 10 to be stored in the cassette.

On the other hand, a shaft 36 is provided between the original 30 and the process head 24.
A mirror 3B is provided which is rotated by a motor 37 about the center. Frame images 22 recorded on the electrophotographic film 16 are projected by projection light a [32] which passes through a lens 34, the electrophotographic film 16, and the lens 26, is reflected by a mirror 38, and is imaged onto a screen 40. .

Further, a mirror 44 is provided on the opposite side of the optical axis 35 from the mirror 38 and is rotated by a motor 43 about a shaft 42 . Frame images 22 recorded on the electrophotographic film 16 are produced by light from a projection light source 32 passing through a lens 34, an electrophotographic film 16, and a lens 26, reflected by a mirror 44, and formed into an image on a transfer device 46 on a copy sheet (not shown). The frame image 22 is copied to.

A shutter 47 is disposed on the document 30 side of the process head 24, and is used to block light reflected from the document 30 by the illumination light source 28 before and after photographing, and to feed the electrophotographic film 16 in the inspection projection mode. When there is a projection light a132
It is designed to block light from Further, an exposure amount detector 49 is provided close to the shutter 47, and is designed to detect an appropriate amount of exposure during close-up.

The winding shaft 12 is rotated by a motor 48, and the winding shaft 12 is rotated by a motor 48.
4 is adapted to be rotated by a motor 50. Further, a light emitting element 55 and a light receiving element 56 are arranged to face each other with the tape 1O interposed therebetween, so as to detect the blip mark 21.

Further, a recording/reproducing head 60 and an erasing head 58 are provided corresponding to the magnetic tape 18 of the tape 10, and are configured to record, reproduce, or erase frame information.

This image information processing apparatus is provided with a cassette loading detector 62, which detects whether a cassette containing the electrophotographic film 16 is loaded into the image information processing apparatus. Further, the user operates the keys on the operating keyboard 66 while looking at the display on the LED display 64 to operate the record retrieval device and input data into the record retrieval device.

Calculation and control are performed by a microcomputer 68. This microcomputer 68 is CPU7O, ROM? 2, a RAM 74, an input port door 6, an output port door 8, and a bus 79 connecting these.

Necessary power is supplied to each of the above-mentioned devices from a power supply circuit 52. The power supply circuit 52 is supplied with commercial AC power. The power failure detection circuit 53 detects this instantaneous AC interruption and power outage, supplies a power failure signal to the battery backup circuit 54, changes the power supply from the power supply circuit 52 to the RAM 74, and changes the content stored in the RAM 74. It is designed to hold.

An exposure amount detector 49, a power failure detection circuit 53, a light receiving element 56, a cassette loading detector 62, and an operation keyboard 66 are connected to the input port door 6.
An appropriate exposure amount detection signal is supplied from the exposure amount detector 49,
A power-off signal is supplied from the power-off detection circuit 53, and a light-shielding signal from the magnetic tape 18 and the blip mark 21 is supplied from the light receiving element 56. In addition, a lamp burnout signal from a light receiving element 2460A placed near the xenon lamp 2460 is transmitted via the drive circuit 80.
A reproduction signal is supplied from the recording/reproducing head 60 to the input port door 6 via the magnetic tape interface 86 . This lamp burnout is due to xenon lamp 24
This is detected because the light-receiving element 2460A does not receive light within a certain period of time even though a drive signal is supplied to the light-receiving element 2460A.

The output port door 8 is connected via a drive circuit 80 to a process head 24, an illumination light source 28, a projection light source 32, and a motor 37.4.
3. Transfer device 46, shutter 47.49 and light emitting element 5
5 is connected to control the process head 24 to perform charging, exposure, drying, and fixing, turn on the illumination light source 28 during exposure, rotate motors 37, 43 during projection or copying, and rotate mirrors 38. 44 to turn on the projection light aI 32, open the shutter 47 at the time of one shadow and projection, reset the exposure amount detector 49 at this opening, and turn on the motor 48.50.
The light emitting element 55 is turned on when the rotation of the light emitting element 55 is performed. The output port door 8 includes a D/A converter 82 and a drive circuit 84.
Motors 48 and 50 are connected through the motor 48 and 50, and the rotational speed of the motor 48 or the motor 50 is controlled in multiple stages immediately after starting and immediately before stopping. Further, a recording/reproducing head 60 and an erasing head 58 are connected to the output port door 8 via a magnetic tape interface 86, and an erasing signal is sent to the erasing head 58 during recording.
A recording signal is supplied to the recording/reproducing head 60. Furthermore, an LED display 64 is connected to the output port door 8 via a drive circuit 88.
The display signal is output to.

FIG. 6 shows an external perspective view of the image information processing apparatus configured as described above, in which a cassette is loaded into the cassette loading section 90, and an image of the document 30 pressed by the document presser white board 92 is transferred to the cassette. recorded on electrophotographic film inside
The recorded image is projected onto the screen 40 or copied by a transfer device 46 built into the housing 94, and the copy is taken out from the opening 96.

These processes are performed according to manual key operations from the operation keyboard 66.

(Process Head) Next, a specific example of the process head 24 will be further described.

The process head 24 is shown in FIG. 2 (A> and FIG. 2 (B)).
As shown in FIG.
, a drying section 2408 , and a fixing section 2410 .

The electrophotographic film 16 is placed in the charging/exposure section 2404.
A protruding frame 2412 is formed that abuts the edge of one piece. The inside of the protruding frame 2412 is a charging/exposure chamber 2414 that penetrates in the horizontal direction (vertical direction in FIG. 2(B)). The charging/exposure chamber 2414 has vertical direction (Fig. 2(B)
) a corona wire 2416 extending in the direction perpendicular to the paper surface) and corona electrodes 241 located on both sides of the corona wire 2416
8 are arranged. The lens 26 is attached to the process head 24 via the m cylinder 26A on the surface opposite to the surface on which the protrusion frame 2412 is formed. Note that the optical axis of the lens 26 coincides with the center of the protruding frame 2412.

A projecting frame 2420 having an opening width slightly narrower than that of the projecting frame 2412 is formed in the developing section 2406 . A developing electrode 2422 formed of a metal plate is disposed inside the protruding frame 2420, slightly inward from the end surface of the protruding frame 2420. A space surrounded by the protruding frame 2420 and the developing electrode 2422 is the developing chamber 24 . Development electrode 242
Openings equal to the width of the developing electrode 2422 are formed between the upper and lower parts of the developer 2422 and the projecting frame 2420, and are defined as a developer inlet 2426 and a developer outlet 2428, respectively.

The developer inlet 2426 communicates with a developer supply tank (not shown), and a predetermined amount of developer is supplied to the developing chamber 24 through the developer inlet 2428 during development.

The developer is made by dispersing fine powder toner particles in a solvent, and a charge control agent is added so that the toner particles are easily charged negatively. The developer outlet 2428 communicates with a developer receiving tank (not shown). The developer is configured to be circulated between the developer receiving tank and the developer supply tank by a known pump. In addition, forced air is discharged from the developer inlet 2426, and the developer after development is quickly discharged from the developer outlet 2428.

Recesses 2442 are formed on both left and right sides of the projecting frame 2420. A part of the recess 2442 is opened and communicated with a pressure reducing mechanism such as a known suction pump.
42 serves to suck up leaked developer;
In FIG. 2(A) and FIG. 2(B), illustrations of piping connecting each device, etc. are omitted.

A protruding frame 2446 is formed in the drying section 2408.

The protruding frame 2446 is formed on the upper part and both left and right sides excluding the lower part, and has an opening width wider than that of the protruding frame 2412. A wall 2448 is formed inside the projecting frame 2446 slightly inward from the end surface of the projecting frame 2446. A recess 2450 is formed between the wall 2448 and the protruding frame 2446. Projection frame 2446, wall 2448 and recess 24
The space surrounded by 50 is used as the drying chamber 24 and the power supply circuit 52. A recess 2450 located at the top of the wall 244B is open and serves as a hot air outlet 2454.

The fixing section 2410 includes a frame portion of the projecting frame 2446 on the left side in the drawing and a projecting wall 245 at the end of the process head 24 on the left side in the drawing.
6, and the space is a fixing chamber 24.
It is said to be 58. The fixing chamber 2458 is provided with a xenon lamp 2460 for strobe, a reflection Fi 2461, and a light receiving element 2460A for confirming light emission, and heat fixation is performed by the flash of the xenon lamp 2460. The opening width of the fixing chamber 2458 is the same as that of the drying chamber 24 and the power supply circuit 5.
The opening width is made wider than the opening width of No. 2.

Note that the end faces of the projecting frames 2412, 2420, and 2446 are located on the same plane. In addition, the charging/exposure chamber 24
14, the developing chamber 24, the drying chamber 24, the power supply circuit 52, and the fixing chamber 2458 are arranged so that successive frames of the electrophotographic film 16 can face each other at the same time.

As shown in FIG. 2(B), a presser plate 2466 is provided on the front surface of the process head 24. The press plate 2466 presses the electrophotographic film 16 against the process head 24 to accurately position the electrophotographic film 16 and improve the adhesion between the electrophotographic film 16 and the process head 24. When the electrophotographic film 16 moves, the pressure on the presser plate 2466 is released.

(n Light Amount Detector) Next, the exposure amount detector 49 will be explained in detail according to FIG. The light reflected from the document 30 is received by the document receiver 1, and a voltage proportional to the amount of received light is transmitted to the integrator 13 via the amplifier 132.
4. Integrator 134 integrates this voltage and provides it to the non-inverting input terminal of comparator 136. Integrator 134
The integral value is reset when the inter-shutter signal is supplied to the shutter 47.

Therefore, during one shadow, when the shutter 47 is opened and the appropriate exposure amount is reached, a high (H) level signal is output from the comparator 136 and is supplied to the input port door 6. The rising edge of this signal is the automatic exposure control signal AEC. The processing of the automatic exposure control signal ABC by the microcomputer 68 will be described later.

(Power-off detection circuit) Next, the power-off detection circuit 53 will be explained in detail according to FIGS. 4 and 5(A).

The zero-crossing point of the voltage of the commercial AC power supply 138 is detected by the zero-crossing detection circuit 140, and a zero-crossing signal T (see FIG. 5(A)) is supplied to the clear terminal of the up counter 142. The up counter 142 has its count value cleared by the rise of the zero cross signal T, and restarts counting the clock signal. This clock signal is a frequency-divided version of the clock signal used by the CPU 70, and its period is 1.6+*sec in this embodiment. When the count value reaches 11, AND gate 14
The output of 4 becomes H level, is differentiated by the differentiating circuit 146, and its rising edge is detected, and the mono multi-by-break 1
48 and inverted by an inverter 150, the input port door 6 and drive circuit 88 shown in FIG.
supplied to

Therefore, after detecting the zero cross point of the commercial AC power supply 138, if the next zero cross signal -T is not supplied to the up counter 142 even after 1.6 A non-maskable interrupt signal NMr is output from the circuit 53. Normally, the negative pulse period of zero cross signal 2C is 10I
Isec, the count value is cleared to 6, and the non-maskable interrupt signal NMI is not output.

The output signal of the AND gate 144 is supplied to the differential circuit 1 power supply circuit 52 via the inverter 151, and when the output signal of the AND gate 144 rises, that is, the count value is 1.
2 is detected. Then, it is shaped by the mono multivibrator 154, inverted by the inverter 156, and outputted as a reset signal RESET (see No. Ff (A)).
The signal is supplied to the input port door 6 shown in FIG.

Therefore, the non-maskable interrupt signal NMI
After 15m5ec has elapsed after outputting the reset signal RE
SET will be output. This reset signal RE
SET is an interrupt signal to the CPU 70.

Processing of the non-maskable interrupt signal NMI and the reset signal RESET will be described later.

(AC power control circuit) Next, according to FIG. 4 and FIG. 5(B), the drive circuit 80
The AC power control circuit 81, which is a component of the following, will be explained.

This AC power control circuit 81 uses a tritic 158 to control the power supplied to the illumination light source 28 into two levels: strong and weak. In this embodiment, the illumination light source 28 uses a halogen lamp, which has the characteristics of stable light intensity and long life.

Zero cross signal T from the zero cross detection circuit 140
The falling edge of the pulse (see FIG. 5(B)) is counted by the presetup counter 160. The preset value of the preset counter 160 is input to the input terminal A.
, B, C, and D, and is 11 in this embodiment. Then, the output pulse of the AND gate 172 rises (
preset signal). That is, when the count value of the presetup counter 160 reaches 15 (at this time, the zero cross signal τ is at low (L) level),
The output of the AND gate 170 becomes H level, and the AND gate 172 is opened. Then, when the zero cross signal T becomes H level, a preset signal is inputted through the AND gate 172, and the count value is preset to 11.

Therefore, the count value of negative pulses in the zero-crossing signal T becomes 15, and the output of the AND gate 170 becomes H level only when the zero-crossing signal T is at the L level. 1st
When the weak lighting signal WL from the output port door 8 shown in the figure becomes H level, the ant gate 1-174 is opened, and the H level from the AND gate 170 is transmitted via the AND gate 174 and the OR gate 176 to the gate pulse signal GP ( (see FIG. 5(B)) and is supplied to the triac 158, and the triac 158 is fired at the zero cross point. Therefore, only half the wavelength of the two wavelengths of the alternating current flows through the illumination light a28 (see Fig. m5 (B) A, C1D), and the tritic 1
1/4 of the power when 58 is short-circuited is supplied to the illumination light 'a28. Furthermore, since the ignition occurs at the zero cross point, no noise is generated in other circuits.

If the strong lighting signal SL is set to H level, the AND gate 178
is opened, and the zero cross signal ZC passes through the AND gate 178,
A full wave of alternating current flows through the illumination light source 28 as it is fed through the OR gate 176 to the tritic 158 and fires the tritic 158 at each zero crossing point. In this way, the strong lighting signal SL and the weak lighting signal WL can control the saw supply to the illumination light source 2B in two stages without generating noise. This lighting control will be described later.

By changing the preset value of the preset 7-tube counter 160, the power supplied to the illumination light tA28 can be set to 1/n (n is a natural number) of the power supplied to the illumination light tA28 in the case of strong lighting. 178, the preset value of the preset counter 160 may be supplied from the microcomputer 68 so that it can be changed, and the output of the AND gate 178 may be directly supplied to the gate of the tritic 158. For example, when the load is a heater, the control circuit 81
It can also be applied to thermal development devices, thermal transfer devices, etc. This is because there is almost no thermal variation in the load.

(Outline of Processing by Image Information Processing Apparatus) FIG. 7 shows a detailed diagram of the operation keyboard 66. Also, the 13th
Figures (A) to (C) show general flowcharts of processes performed by manual key operations from the operation keyboard 66, and various processes will be explained with reference to FIG.

In the following, the absolute address refers to the position of the frame corresponding to the blip mark 21 on the electrophotographic film 16 from the magnetic tape 18 side. Furthermore, in this embodiment, the code consists of a numerical set of a large section number (folder F), a medium section number (item J), and a small section number (page P), for example, 100. 2.
Represented as 3. This major division number is a number that divides folders, and the size of the number is unrelated to the arrangement order. In addition, the medium section number and small section number indicate the relative address from the beginning of the large section, and the above example (
100, 2, 3) indicates the third piece from the beginning of the second medium section. Further, in this embodiment, the file mark is a mark consisting of a four-digit number, and is used to search for related documents regardless of the classification number.

The relationship between these absolute addresses, codes, and file marks will be explained in detail later.

゛In Figure 13, when the power is turned on, RA, M74
The work area and output signals of are initialized (
Step 200), in this state, the search copy mode is set. When a cassette is loaded into the cassette loading unit 90 (step 202), the cassette loading detector 62 is turned on, and the information recorded on the magnetic tape 18 is transferred to the recording/reproducing head 6.
0 by the microcomputer 68 and stored in the RAM 74.

<Folder registration> Folder registration refers to registering folders that are distinguished by major division numbers. For example, 100. 5.
If 10 is registered, five items of 10 pages each will be created in the folder numbered 100.

Therefore, a total of 50 page folders will be created.

To explain this according to FIG. 13, when the FORM key 100 is turned on in step 206, step 208.2
10.212.214 and the registered folders are displayed in step 216.

This display is made on the code display section IO2 of the LED display 64. When the FORM key 10G is pressed again, the process proceeds from step 206 to step 216 in the same manner as described above, and other registered folders are displayed.

Next, in step 206, the numeric keypad 104 is operated to select, for example, 100. 5. 10 and key manual step 2
This code is stored in step 22, and displayed on the code display section 102 in step 224.Next, when the FORM key 100 is pressed in step 206, step 20B
, 210.212.214.218, the mode is set to registration mode, and the input code is displayed blinking in step 220. In other words, the operator is asked to confirm whether the code is correct.

Next, when the FORM key 100 is pressed again in step 206, the process advances to steps 208, 210, and 226, and the input folder is registered.

In this way, the FORM key 100 functions as both a mode change key and an entry key.

The same applies to other function keys. Therefore, the operation becomes easy and the operation keyboard 66 can be simplified.

Then, in step 206, press the CLEAR/5TOP key 10.
When 6 is pressed, the process advances to step 208 and 228 to clear the registration mode.0 Then, in step 224, the displayed code is cleared.

Photographing> Next, a case in which a document is photographed and recorded on the electrophotographic film 16 will be described.

In step 206, the shooting location is designated as 100.2, for example. In this case, it is specified that the first page of item 2 in folder number 100 is to be photographed. This code is stored in step 222;
Displayed in step 224.

Next, in step 206, the PH0TO key 108 is pressed.

This results in step 208.210.212.228
, and find the folder number 100, the number of empty pages of item 2, and the first empty page. Then step 2
The mode of the document is changed to photographing mode, and the mode display lamp 109 is turned on. Also, the illumination light source 28 is turned on weakly.
Next, in step 232, the code and the number of empty pages stored in step 222 are displayed blinking on the code display section 102 and the count display section 103, respectively.

Next, set the original, and in step 206 select P HOTO.
When key 108 is pressed, steps 208.210.234.
Proceed to 238 and display the previous step 22 in the code display section 102.
Display the blank page code obtained in step 8, and then feed the film to the position indicated by the code (step 24).
0), 1i% shading is performed (step 242), and then the process proceeds to step 228.2 original, 232, where the code and the number of empty pages are displayed blinking.

Next, set the next original and select PH0TO in step 206.
When key 10B is pressed, steps 208 and 210 are performed as before.
．． 234.238 to 242.228 to 232 are processed.

Note that if the code is set to 100 instead of 100.2, one most shadow will be performed in order from the first unshadowed (empty) page of folder number 100.

Further, when the code and the number of empty pages are blinking as a result of executing step 232, a file mark can be attached to the next frame to be photographed.

This is done by inputting the file mark number using the numeric keypad 104 and then pressing the STO key 110.

For example, if the number 20 is entered in step 206, steps 208, 222, and 224 are executed, and then, if the STO key 110 is pressed in step 206, steps 208.
Proceed to 210.212.244 and set this number 20 as the file mark number.

Next, set the file mark submode in step 2.
46) The code and file mark number are displayed blinking (step 248), and the file mark number is displayed on the count display section 103.

Next, in step 206, when the PH0TO key 108 is pressed, the process proceeds to step 20B, 210.234.236, and the input file mark is set. Thereafter, steps 238 to process heads 242, 228 to 2, as described above.
32 processes are performed.

<Search and Projection> Next, a case will be described in which a page that has already been shaded once is searched and projected.

First, in step 206, press the CLEAR/5TOP key 1.
06 is pressed to perform steps 20B, 228 and 224, clearing the previous mode and turning off the display on the LED display 64.

Next, in step 206, a search range is specified.

For example, to search for pages in folder number 100 and item 2, enter 100.2 in step 206. This causes the processing of steps 208, 222, and 224 to be performed.

Then, in step 206, the S E A RCH key 112 is pressed.
Press.

For example, if you press the right 5EARCH key 114, step 2
Proceed to 08.210.212.250 to find the total number of pages within the search range.Next, set the mode to search copy mode and turn on the mode indicator 117 (Step 2
Power supply circuit 52) 0 Next, the code is blinkingly displayed on the code display section 102, and the total number of pages within the search range is blinkingly displayed on the count display section 103 (step 254). For example, in the above example, this number of pages is 3 pages. 100. 2. 1 3 is displayed.

Then, in step 206, press the right 5EARCH key 114 again.
When is pressed, the process advances to steps 208, 210, and 256, and the electrophotographic film 16 is fed to the position 100.2.1. Then, step 2 to project the piece image 22 onto the screen 40.
58), 100. 2. 1 ( is displayed on the LED display 64. This ( ) is displayed on the count display section 103, indicating that there are pages that can be projected only in the direction of increase in the number of pages (towards the right of the electrophotographic film 16 shown in FIG. 5). means.

Here, "projectable" means that there is an object that can be projected without error within the search range.

During image projection, press the right 5 EAR of the 5 EARCH keys 112.
When the CH key 114 is pressed, the search is performed in the direction of increasing the number of pages, and when the left 5 EARCH key 116 is pressed, the search is performed in the direction of the decrease in the number of pages.

Next, return to step 206 from step 262 and press the right 5EARCH key 114 again to proceed to step 208.2.
10.212.256 and the electrophotographic film 16 is advanced to the next projectable page. Then, it is projected (step 258), and 100.2.2) ( is displayed on the LED display 64.] [ is the current position Wl of the electrophotographic film 16 (the frame located at the optical axis 35 shown in This indicates that there are pages that can be projected in the left and right directions from the position).

When the right 5EARCH key 114 is pressed again in step 206, steps 208, 210, 256 to 260 are performed as before.
100.2.3) is displayed on the LED display 64. ] indicates that there are pages that can be projected only in the direction in which the number of pages decreases.

In addition, in step 206, if the 5EARCH key 1 is pressed for a certain period of time or more,
If 12 is pressed, scrolling is performed. That is, proceeding from step 260 to steps 262 and 264,
If it is within the search range, step 2 after a certain time interval.
Repeat the process from 5°6 to 260, sequentially project and L
The information is displayed on the ED display 64. This point will be explained in detail later.

Next, the case of searching, projecting, and projecting using file marks will be explained.

As above, press the CLEAR/5TOP key 106 to
0 to erase the display on the ED display 64. Next, input the file mark number using the numeric keypad 104. This disrupts the processing of the process head 24 in step 222.2.

Next, press the RCL key 120 to specify that the input number is a file mark. That is, the process proceeds to steps 208 to 212,266,268, and the previously input number is set as the file mark recall number.Then, this file mark is displayed on the count display section 103 (step 270), and the process returns to step 206.

If you press the 5EARCH key 112 here, instead of specifying a folder, item, or page to search for, the search range will be projectable pages that have a file mark that matches the input file mark recall number. The process is the same as when no mark is attached.

Next, a case will be described in which a search range is specified using folders, items, and pages, and only pages with specified file marks within the search range are searched and projected.

As above, press the CLEAR/5TOP key 106 to
The display on the ED display 64 is turned off. Next, the file mark number is input using the numeric keypad 104. This causes the processing of the process head 24 in step 222.2.

Next, press the RCL key 120 to specify that the input number is a file mark. That is, proceed to steps 208 to 212.266.268, and set the previously input number as the file mark recall number 0.
Next, this file mark is displayed on the count display section 103 at the 0th order, which is the file recall number (step 270), and the process returns to step 206.

Next, in step 206, a search range is specified.

For example, enter 100.2. This causes step 22
2.224 processing is performed and 100 is displayed in the code display section lO2.
．． 2 is displayed.

Next, in step 206, press the right 5EARCH key l14 to proceed to steps 208 to 212 and 250 to 25 in the same manner as above.
4, and then in step 206 cloth 5EA is applied again.
Pressing the RCH key causes steps 208.210.256
Go to and the file mark number within the search range is 20.
The electrophotographic film 16 is fed to the first page of . The subsequent processing is the same as the process when no file mark is attached, except that only those with file marks within the search range are searched.

Copy> Next, the case of making a copy during a search will be explained.

For example, 100. 2. Assuming that page No. 2 is being projected, the number of copies is input using the numeric keypad 104. As a result, the processes of steps 222 and 224 are performed. When the copy key 122 is pressed next, step 206
~210.272 and the code 100. 2.2
and 0 to display the number of copies. For example, if the number of copies is 2, 02 is displayed on the count display section 103. 6 Next, make a copy (step 2 RAM 74), and if the remaining number is not O (step 276), Said step 272
．． 2RAM74 processing is repeated. When copying is completed, the process advances to step 260, and the code and projection direction are set to LED.
6 to be displayed on the display 64. Then, the process returns from step 262 to step 206. Note that if only the C0PY key 122 is pressed without specifying the number of copies using the numeric keypad 104, only one copy will be made.

Also, when specifying the number of copies, the blank key 118
Press to perform group copy. That is, for example, code 100. 2. When the blank key 118 is pressed at position 2 and then the C0PY key 122 is pressed, all the photographed frame images 22 included in 100.2 are copied one by one.

<Changing or Deleting a File Mark> Next, a case in which a file mark is changed or deleted during a search will be described.

For example, 100. 2. When page 2 is being projected, enter the number 50 using the numeric keypad 104.

This causes the processing of steps 222 and 224 to be performed.

Next, when the STO key 110 is pressed in step 206, the process proceeds to steps 208 to 212.244, and the file mark submode is set to 0, with the number 50 as the file mark number (step 246), and the code 100.
2. 2 is blinkingly displayed on the code display section 102, and the file mark number (F50) is blinkingly displayed on the count display section 103 (step 248).

When the STO key 110 is pressed again in step 206, the process advances to steps 208, 210, 278, and 280, and the numerical value 50 is set as a file mark. In this way 100
．． 2. A file mark 50 is set on the second frame image 22.

Next, the case of erasing a file mark will be explained.

During the search, for example, the code 100. 2. If the RCL key 120 is pressed in step 206 when page 3 is being projected, steps 208 to 212.266.2
Proceed to step 82 and set the file mark erase submode 6
Next, the code and if the code has a file mark are displayed on the count display section 103 (step 270).

for example, 100. 2.3 F20 is displayed.

Next, in step 206, when the STO key 110 is pressed, the process proceeds to steps 208 to 212.244.245.24B, where the code and file mark number are displayed blinking, and the operator is asked to confirm whether the file mark number can be deleted.

Next, in step 206, when the STO key 110 is pressed again, the process advances to steps 208, 210, 278, and 284, and this file mark 20 is erased.

Ending Operation> Next, the operation after the photographing, retrieval, projection, or copying process is completed will be described.

When the REW/TF, JCT key 124 is pressed in step 206, the process proceeds to steps 208 to 212.286, and if one shadow has been done previously, the process proceeds to step 288, where the last photographed page is projected onto the screen 40. Code display section 1 displays 0 and then a code asking for confirmation to remove the cassette.
02 and an End symbol is displayed on the count display section 103 (step 290), and then the mode is set to rewind/eject mode (step 292).

When the REW/EJECTI process head 24 is pressed again in step 206, the process proceeds to steps 208, 210, and 294, and the winding shaft 14 shown in FIG. 1 is rotated counterclockwise to wind the electrophotographic film 16 and magnetic tape 18. Winding on the take-up shaft 14 Next, rotate the take-up shaft 12 clockwise to RA.
The information of the electrophotographic film 16 stored in M74 is recorded onto the magnetic tape 18. Then, the magnetic tape 18 is rewound. Next, the process proceeds to step 296, where the code display section 1
The display of 02 is erased and End is displayed on the count display section 103.0 Next, the process proceeds to step 298, where the cassette is raised and can be taken out.

The operator then removes the cassette and turns off the power. In step 286, if no imaging has been performed, steps 288 to 290 are not executed and step 2 is immediately performed.
The process proceeds to step 92, and the process is the same as that in the case where photographing is being performed, except that there is no projection process.

(Piece Information) Next, the specific structure of piece information will be explained according to FIGS. 9 to 12.

Figure 9 shows 100. 2.3.200. 3. After registering 2 and the folder, change the folder number 100 to 10
0. 3. 3 shows the case of extended registration. In the case of extended registration, the extended portion is registered in the unregistered area next to the registered area on the electrophotographic film 16. Furthermore, if a photographing error occurs due to power being turned off during photographing, frames with the corresponding code are secured in the opposite direction from the last frame of the electrophotographic film 16. In FIG. 9, code 100. 2. A shooting error occurred at position 2, and this 100. 2. The piece with code 2 is photographed.

1I shadows can be photographed in random order on the electrophotographic film 16 by specifying a code.

For a search, for example, when a code 200 is input, absolute addresses 7 to 10 become a searchable range as shown in FIG. 6, and by pressing the right 5 EARCH key 114, these can be sequentially projected. Furthermore, if the code 100.2 is input, the absolute address 4.1000 becomes the searchable range. Further, by searching with the file mark IO, it is possible to project the frame image 22 with the absolute address 1.7. Also,
If you search using the file mark 20, you can project the absolute address 3.8.

The process of making a copy is the same as the case of projection.

FIG. 10(A) and FIG. 11 correspond to FIG. 9.

FIG. 10(A) is a folder table in which folder numbers are arranged in the order of registration. FIG. 11 is an address table in which the frames of the electrophotographic film 16 are arranged in order of absolute addresses, but in order of codes.

As shown in FIG. 12, whether it is F, J, or P is expressed by 2 bits (category FJP) in the status byte. F when FJP is 3, P when J%l is 2
, and when it is 0, it is an end mark.

Further, an absolute address is expressed in 2 bytes. The status byte 12 also includes a photographing completion flag C (l when 1M shadow has been completed) and a photographing error flag M (tl! shadow miss miss uki l). In addition, a 2-byte file mark is stored corresponding to each piece. These 5 bytes are reserved for each frame image 22 for all frames.

Since the segment FJP is represented by 2 bits, the storage capacity can be reduced.

(Method for Determining wA Pair Address) Next, a method for determining the absolute address from the code will be explained according to FIGS. 10(A) and 11.

For example, code 100. 1. In the case of 3, the 10th
Looking at Figure (A), folder number 100 is the first, so look at the first F in Figure 11. Folder F has both item J and page P, so proceed to the right from F (100, 1, 1) and count the number of P by 2. The absolute address of this position is 3. In this way too, 1
．． It can be seen that the absolute address of 3 is 3.

Also, for example, code 200. 2. In case 2, if you look at Figure 10 (A), the folder number is 200.
is in the second position, so in Figure 1I, 2 from the left
Look at number F. F has both J and P, and J has P, so the order is 1 (200, 1,
At the first J on the right side from 1) (200, 2, 1)
Then go to the first P position, and the absolute address of this position is 10. In this way code 20
0. 2. It can be seen that the absolute address of 2 is 10.

Next, according to FIG. 14, the absolute address of the target position (destination absolute address) is set based on the current position of the electrophotographic film 16 (this absolute address is referred to as the current absolute address).
We will explain in detail how to find .

Current position is code 100. 1. 3 (Figure 11 A)
and the target position is 200. 2. 2 (FIG. 11 E) will be explained. Code 200 at the target position in step document 0. 2. From the folder table shown in FIG. 1θ (A), the number of this folder number 200 from the beginning is determined. In this example, it is the second document, and the value of L is 2 (step document 2).

If the folder number is not found even after searching the folder table (step manuscript 4), a warning is issued to the operator (step manuscript 6) and the process returns to the main routine.

Next, set the reference position (100) of the folder to which the current position belongs.
, 1, 1) on the memory is determined (step original 8). As will be explained later, this is to simplify the program by uniformly handling the target location regardless of whether it is in the same folder or not. In the step document 8, the value of LX is the value of L at the current position, which is l in this example. The value of A is determined as the address of the first F in FIG. Therefore, the value of A is 0.

Next, in step 310, since LX<L, the value of d is set to 5 (step 312). This value of d is the 12th
As shown in the figure, piece information corresponding to one piece image 22 is 5 pieces.
Based on being a part-time worker.

Next, in step 316, the values of X and C used in the subroutine of FIG. 14(B) are determined.

The value of X corresponds to 3 when FJP is F, 2 when FJP is J, and 1 when FJP is P. The value of C is 1 in this example, which corresponds to finding the position C of the first F by proceeding to the right from the mouth position in FIG. 11, as will be described later. Next, in step 318, the subroutine shown in FIG. 14(B) is executed.

Since the value of C is l, step 400 to step 40
Proceed to step 2, and add the value of d (-5
) is added. The FJP shown in FIG. 12 at the updated address A becomes P when looking at FIG.
=1. Therefore, steps 404 to 40
The process proceeds to step 6. Since the value of X is 3 and FJP<X, the process returns to step 400. When steps 400 to 406 are repeated 10 times, the position shown in FIG. 11 is reached, and in step 406 E
The value of JP becomes 3 and the process proceeds to step 40B.

As shown in FIG. 9, this 200. 1. Since 1 is not a shooting error, the value of M is 0, and step 410
The process proceeds to step 400, where the value of C is decremented to 0, and the process returns to step 400.

Next, in step 320, the value of d is set to 5, the value of X is set to 2, and the value of C is set to J-1. Since J is 2, the value of C is 0. Then, in step 322, the subroutine of FIG. 14(B) is executed. As above, steps 400 to 406 are performed 2 times.
After repeating the operation, it will be in the position shown in Figure 11, step 406.
In step 408, the value of FJP becomes 2, and the process proceeds to step 408.
As shown in the figure, 200. 2. Since the position 1 is not a photographing error and M=0, the process advances to step 410 and the value of C is decremented. As a result, the value of C becomes 0, and the process returns to step 400, and then returns.

Next, in step 324, the value of X is set to 1, and the value of C is set to P-1.
be the value of Since the value of P is 2, C becomes 1. Next, in step 326, the subroutine shown in FIG. 14(B) is executed. As above, the processes of steps 400 to 406 are
FJP when done twice.

The value becomes 1 and the process advances to step 40B. As shown in FIG. 9, since M=0 at this position, the process proceeds to step 410 and the value of C is decremented. As a result, the value of C becomes O, and the process returns to step 400, and then returns.

Next, in step 328, the absolute addresses stored at addresses A+1 and 8+2 (see FIG. 12) are set as the value of Y. The value of Y is 10. Then, the process returns to the main routine.

In this way, 200. 2. The absolute address of 2 is Y
It can be found as the value of

Next, a case will be explained in which the absolute address of the target position within the same folder is determined.

Set the current position to 100. 2. 2 (absolute address 10G
o) and set the target position to 100. 1. Set it to 3. Process step originals 0 to 8 in the same manner as above, proceed to the left from the position shown in Fig. 11 until the first F is found, F is found at the position of 0, and find the value of address A on this memory ( A=O). Then steps 310, 312.3
Proceed to step 16. The values of L and LX are both 1, and the value of C is O. Therefore, even if the subroutine of FIG. 14(B) is processed in step 31B, the process returns from step 400 and proceeds to step 320, because the mouth position and the target position A are in the same folder. In step 320, the value of C becomes 0, and the process proceeds from step 400 to step 324 in the same manner as described above. This is because the mouth position and the target position A are within the same item. In step 324, the value of C is 2, and in steps 400-41
The process of 0 is repeated twice and returns to 0. Then, in step 328, the value of Y becomes 3. Then, the process returns to the main routine.

In this way, the absolute address of the destination position can be determined using the same processing method regardless of whether the destination location I is in the same folder as the current location.

The film is fed from the current position to the target position as follows.

Calculate the difference between the absolute address of the destination position obtained as above and the absolute address of the current position that has already been obtained, determine whether to feed the electrophotographic film 16 to the right or left depending on the sign of the difference, and determine the value. The electrophotographic film 16 is stopped by counting the blip mark 21 by the absolute address. In this way, the piece at the target position is sent to the position of the optical axis 35.

(Film Feed) Next, steps 240 and 250 shown in FIG. 13(C) will be explained in detail according to FIG. 15.

Move the electrophotographic film 16 to the current position (absolute address Nl)
) to the destination position (absolute address Nt). As shown in FIG. 1, the interval between adjacent blip marks 21 is S11, and the distance at which no blip mark is detected is So @ so <31. Also, the seventh speed of film feeding is V. This V The voltage to be supplied to the motor 48 or 50 is determined based on the winding diameter of the tape 10.

Let S be the time integral value of the command speed V.

In this embodiment, when N,>N, that is, when rewinding the electrophotographic film 16, the electrophotographic film 16 is rewound to address N1-1 and then reversed to wind one frame. The mechanical conditions such as the inertia of the electrophotographic film 16 are made the same to improve the stopping accuracy of the electrophotographic film 16.

First, the case where Nl <Nl will be explained. step 500
．． The process proceeds to step 502, and in step 520, the value of K is set to 1 in order to increment the value of N.

Next, the process proceeds to step 504, where a speed pattern of the commanded speed V is determined. The larger the I Nl Nt lO value, the faster the electrophotographic film 16 is fed. This speed pattern is stored in the ROM 72 in the form of a table, and changes stepwise as shown in FIG.

Next, in step 506, S is cleared to 0. Then, the process proceeds to step 510, where the command speed V and the electrophotographic film 1 are cleared.
A voltage corresponding to the winding diameter of 6 (determined by the value of N + ) is supplied to the motor 4B.Next, the process proceeds to step 512, where the value of the film feed distance sts is updated. Then S<
If S@<step 514), the process returns to step 510 and the above process is repeated.In other words, if S<30, the presence or absence of the blip mark 21 is not determined.As a result, even if dust is attached to the electrophotographic film 16, In order to improve the stopping accuracy of the electrophotographic film 16 without mistakenly determining that it is a blip mark 21, it is necessary to detect the edge of the blip mark 21 and stop the electrophotographic film 16 at the same time.
Since there is no time to distinguish between dust and the blip mark 21, the light receiving element 56 is
It is extremely beneficial not to read signals from.

In the above repetition, the value of V in step 512 is updated according to the speed pattern determined in step 508.

If s; aso, the process advances to step 516, where the signal from the light receiving element 56 is read and the presence or absence of the blip mark 21 is determined. If the blip mark 21 is not detected, the process returns to step 510 and the processes of steps 51O to 516 are repeated.

If the blip mark 2I is detected, the process proceeds to step 518, and an abnormality in the film advance is detected based on the value of lss+I. Step 52
If N1≠Nt in step 2, the process returns to step 506 and the above process is repeated to count the number of blip marks 21.

If N+=Nt in step 522, step 52
4 to stop feeding the electrophotographic film 16, then 0 to stop feeding the electrophotographic film 16.
In step 526, the value is 1, so the process returns to the main routine.

Next, the case of Nt>Nx will be explained. In this case, the process advances from step 504 to step 528, where the value of N8 is decremented. This results in step 524
Then, the electrophotographic film 16 is rewound by one extra frame and the feeding of the electrophotographic film 16 is stopped. Also, set the value of K to -1 and step 5
The value of N is decremented by 20.

After stopping the feeding of the electrophotographic film 16 in step 524, the process proceeds to steps 526 and 530, increments the value of N8, and returns to step 50G. Nx −N
t + 1, the above-mentioned process for N and <N2 is performed, and only one frame is sent.

Next, in step 518, if l5-31 1≧8, it is determined that there is a feeding abnormality, and in step 532, the feeding of the electrophotographic film 16 is stopped, and in step 534, a feeding abnormality is displayed, and a buzzer etc. The alarm will sound to notify the operator of the abnormality, and the process will end. Then, after the operator normalizes the process, the process is restarted.

In this way, since feeding abnormalities are detected every time the electrophotographic film 16 is fed one frame, abnormalities such as jamming in film feeding can be detected early, and it is possible to prevent the electrophotographic film 16 from becoming a defective product. .

(Photography) Next, step 242 shown in FIG. 13(C) will be explained in detail according to FIG. 16.

In step 600, the electrophotographic film 1 is
6 is uniformly positively charged 6 Next, the process proceeds to step 602, where the integrator 134 shown in FIG. 3 is reset, and in step 604, the strong lighting signal SL shown in FIG. Turn on the lighting source for 2 days. Then, in step 606, the shutter 47 is opened.

Next, in step 60B, the value of T, which is a soft timer, is cleared. In step 610, the comparator 13 shown in FIG.
If the output of 6 is at L level, T is incremented at step 612. If the value of T has not reached T in step 614, the processes of steps 61O to 614 are repeated.

The value corresponds to a slightly longer exposure time than the exposure time when photographing black paper. Therefore, if the lamp of the illumination light source 28 is not burnt out, step 61 is performed before 'r-T.
0, the output of the comparator 136 becomes H level, and the process proceeds to step 616, where the shutter 47 is closed. and,
In step 618, the strong lighting signal SL is set to L level and the weak lighting signal WL is set to H level to weakly light the illumination light source 28. In this way, exposure processing is performed in steps 602 to 618, then development, drying, and fixing are performed in step 620, and the process returns to the main routine.

FIG. 5(C) shows a time chart of lighting control of the illumination light source 28 in the photographing mode.

When the shirt is closed, the light does not turn off but remains weakly lit.
This is to ensure a halogen cycle, prevent filament consumption and blackening of the tube wall of the illumination light source (halogen lamp) 28, and keep the color temperature constant.

If the illumination light 'a28 is out of lamp, repeating the steps 610 to 614 will result in T''To in step 614, the process will proceed to step 622, the shutter 47 will be closed, and the lamp will be turned off in step 624. It notifies the operator that the lamp is burnt out by indicating that the lamp is burnt out and also sounds an alarm such as a buzzer, and the process ends.

In this way, with the simple configuration of simply adding steps 608, 612, and 614, the illumination light a! Can detect burnout of the X28 lamp. In addition, a counter will be installed and the shutter 4
The clock signal may be counted while the lamp 7 is open, and when the count is up, it is determined that the lamp is burnt out.

Next, according to FIG. 17, step 62 shown in FIG.
Fixing, which is part of the 0 processing, will be explained.

In step 650, a flash of light is emitted from the xenon lamp 2460, and in step 652, it is determined whether the light receiving element 2460A has received this light.

If light is received, the fixing process is completed. If no light is received, in step 654, a display indicating that the lamp is out is displayed and an alarm such as a buzzer is sounded to notify the operator that the lamp is out. Then, in step 656, it is stored in the RAM 74 that the relevant piece is not fixed. This storage is performed by storing the addresses of unfixed frames in a specific area, as shown in FIG. 10(B). This example shows that the pieces at addresses 4 and 15 are unfixed.

Since the number of unfixed pieces is generally small, a small storage area is sufficient.

Incidentally, unfixed frames may be stored by setting one bit in the status byte shown in FIG. 12.

The fixing process for unfixed frames will be described later.

(Power supply abnormality) Next, interrupt processing when a power supply abnormality occurs will be described according to FIG. 18<A.

Processing is started when the input masked door 6 non-masked interrupt signal NMI is supplied from the power-off detection circuit 53. In step 700, the contents of registers (including the program counter) are saved to 0 in preparation for restart.Then, the process proceeds to step 702, and due to a power outage, step 6
If it is determined that the process in step 50 has not been completed, the address of the unfixed frame is changed to J? in step 704, as in the case where the lamp is out. Store in AM74.

Next, the case where the power is restored will be explained according to FIG. 18(B).

Step 7 If the address of an unfixed frame is stored in the IIAM 74 in the manuscript, the frame is fixed in step 734. Next, the contents of the register (ζ including the program counter) saved in step 704 are restored. Processing is restarted from the point at which the error occurred.

Next, the above step 732 will be explained in detail according to FIG. 18(C).

In step 760, the electrophotographic film 16 is sent to the address of the unfixed frame stored in the RAM 74. Next, the process proceeds to step 762, where the xenon lamp 2460 emits a flash of light, and in step 764, the light receiving element 2460
It is determined whether A has received this light. If light is received, fixing is complete, and in step 766, the address of the unfixed frame is cleared. The process then proceeds to step 768 where R
If there are other unfixed files stored in AM74, go to step 7.
Repeat the processes from 60 to 768.

In step 764, when it is determined that the light receiving element 2460A does not receive light, steps 654 to 17 in FIG.
656 processing is performed.

([Reading Tape]) Next, step 204 shown in FIG. 13(A) will be explained in detail according to FIG. 19.

At step 800, the magnetic tape 18 is fed leftward in FIG. 8 at a low speed (reading speed). In step 802, the timer T is cleared to 0. Then, the process proceeds to step 804.
It is determined whether the light emitted from the light emitting element 55 is received by the light receiving element 56. If there is leader tape 19 between light emitting element 55 and light receiving element 56, light is received and T is incremented in step 808. T in step 810
≦T, and if it is less than or equal to T, the processing of steps 804 to 810 is repeated.

Therefore, if the transparent part is fed a certain distance, it becomes T '' T o in step 810, and it is determined that the tape is the leader tape 19, and the process proceeds to step 812.

If the light is blocked in step 804, the magnetic tape 1
8 or the blip mark 21 is detected, and in step 806, the tape 1O is fed at high speed to the right in FIG.

If the light emitted from the light emitting element 55 is blocked by the magnetic tape 1B in step 812, the erase head 58
When the end mark data is read, the magnetic tape 18 is fed at high speed in the same direction in steps 8!6. In step 81B, the electrophotographic film 1 is placed between the light emitting element 55 and the light receiving element 56.
The presence or absence of unfixed frames is determined in step 820.The presence or absence of unfixed frames is written to the magnetic tape 18 in step 924, which will be described later, and is stored in the RAM 7 in step 814.
The determination is made based on whether or not the address shown in FIG. 10(B) is stored among the data read in 4.

If there is no unfixed frame, N0 blip marks 21 are counted in step 822, the process proceeds to step 824, and the high-speed feeding started in step 816 is stopped.
The l first (N11-1) pieces are unused pieces, and the N0th piece has the absolute address l.

If there is an unfixed frame, the process shown in FIG. 8(C) is performed in step 826. After the process in step 824 or step 826 is completed, the process returns to the main routine.

In this way, the leader tape 19 is attached to one end of the magnetic tape 18.
Since this is connected, the reading start position can be determined without having to attach aluminum foil to the tape and detect it.

(Magnetic Tape Writing) Next, step 294 shown in FIG. 13(C) will be explained in detail according to FIG. 20.

At step 900, the tape 10 begins to be fed rightward in FIG. 8 at high speed. If the electrophotographic film 16 is located between the light emitting element 55 and the light receiving element 56 and is blocked by the blip mark 21, the process proceeds to steps 902 and 904. Go ahead and clear timer T.

The process then proceeds to step 906.90B, where T is incremented. In step 910, it is T#Tl, and steps 906 to 910 are repeated.Since the width of the blip mark z1 is short, the light is received by the light receiving element 56 in step 906, and the process continues in step 90 until the next blip mark 21 comes.
Loop 2.

When the tape IO is fed and the magnetic tape 18 is located between the light emitting element 55 and the light receiving element 56, steps 906 to 9 are performed.
10 is repeated T times and the process proceeds to step 912. Next, in step 912, the process waits for the arrival of the leader tape 19, and proceeds to step 914, where it begins to feed the tape 10 to the left in FIG. 8 at low speed.

Next, the process advances to step 916, waits for the magnetic tape 18 to arrive again, and in step 918, the timer T is cleared.
Next, in steps 920 and 922, the program counts until T becomes T2, and waits for the magnetic tape 1B to be sent to the writing start position after a certain period of time has elapsed.Next, in step 924, frame information is written to the magnetic tape 18. Piece information also includes addresses of unfixed pieces.

When writing is completed, the process advances to step 926, where tape 1 is
0 to the right in Figure 8 at high speed. Then step 9
Proceed to Step 28, wait for the leader tape 19 to come between the light emitting element 55 and the light receiving element 56, and in Step 9 clear the timer T with the original. Wait until the leader tape 19 reaches the middle position after a period of time has elapsed, and step 936
At step 926, the rewinding started is stopped. Then, the process returns to the main routine.

In this way, the leader tape 19 is attached to one end of the magnetic tape 18.
Since this is connected, it is possible to determine the writing start position without having to attach aluminum foil to the tape and detect it.

In the above embodiment, the image information processing device to which the present invention is applied was explained as a microfilm camera processor league printer, but it may also be a device that projects image information onto a screen or a device that projects image information onto a CRT. Device,
Furthermore, the present invention can be applied to single-meter or multi-function devices that project, display, search, and record image information, such as devices that record image information on recording media such as films and disks.

In addition, films that form image information or on which image information is formed are described as electrophotographic films, but conventional silver halide films, thermoplastic films, photomigration type heat development films, and other types of heat development type silver halide films are also used. etc. are also used. Further, the magnetic tape connected to the leading edge of the electrophotographic film can be replaced with another storage medium such as a semiconductor memory.

〔Effect of the invention〕

In the drive system abnormality detection method according to the present invention, the interval between blip marks provided in advance on the film corresponding to each frame and the commanded speed of film feeding from the detection of the blip mark until the detection of the next blip mark are determined over time. If the absolute value of the difference from the integrated value is greater than a predetermined value, it is determined that the film movement drive system is abnormal, making it possible to immediately detect an abnormality in the film transport drive system. It has the excellent effect of

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an image information processing apparatus according to an embodiment of the present invention, FIGS. 2(A) and (B) are configuration diagrams of a process head, and FIG. 3 is a block diagram of an exposure amount detector. Figure 4 is a circuit diagram of power failure detection and AC power control, Figure 5 (A) is a time chart of the power failure detection circuit, Figure 5 (B) is a time chart of the AC power control circuit, Figure 5 (C). is a time chart of halogen lamp lighting control, Fig. 6 is an external perspective view of Fig. 1, Fig. 7 is an enlarged detailed view of the operation keyboard shown in Fig. 6, and Fig. 8 is a leader tape, magnetic tape, and electrophotographic film. 9 is a piece information table showing an example of a case where relative addresses are in two layers, FIG. 10 (A) is a folder table, and FIG. 10 (B) is an address table for unfixed pieces. , FIG. 11 is an address table for determining the absolute address, FIG. 12 is a memory map showing the structure of piece information for one piece, and FIGS. 13 (A), (B), and (C) are folder registrations. General flowchart of 1i shadow, search, and copy, Figure 14 (A)
, (B) is a flowchart for determining the absolute address of the target position from the current position when the target position code is input, Figure 15 is a flowchart for film advance, Figure 16 is a flowchart for image appearance, and Figure 17 is a flowchart for fixing. 18(A) to (C) are flowcharts at the time of power failure and power recovery, No. 1911iJ is a flowchart for reading magnetic tape, and FIGS. 20(A) and (B) are flowcharts for writing to magnetic tape. . DESCRIPTION OF SYMBOLS 10... Tape, 16... Electrophotographic film, 21... Blip mark, 22... Frame image, 68... Microcomputer.

Claims (1)

[Claims] The absolute value of the difference between the interval between blip marks set in advance on the film corresponding to each frame and the value obtained by time-integrating the command speed for film feeding from the detection of a blip mark until the detection of the next blip mark is greater than or equal to a predetermined value. In that case,
A drive system abnormality detection method characterized by determining that a film movement drive system is abnormal.