JPH0252264B2 - - Google Patents

Description

[Detailed description of the invention] (Technical field) The present invention relates to an image processing apparatus such as a copying machine.

(Prior Art) Conventionally, as an image processing device, in a copying machine,
In order to reduce the load on the document table drive system, a limit switch for switching the backward movement was turned on while the document table was moving forward, and then the document table was moved backward after a predetermined period of time. −144730
It is stated in the No. Also, JP-A-53-
Publication No. 74026 describes that in an image processing device, when guiding a certain lens to the optical path in order to switch the magnification,
A method for retracting other lenses from the optical path is described. Furthermore, in the image processing device, the optical system such as a lens is driven by the drive system to the same magnification position or variable magnification position in response to key operations to switch the image magnification, and during this magnification switching drive, the next magnification switching is performed. There are some devices that do not accept key operations for this purpose.

However, this image processing device does not accept key operations for the next magnification change while the magnification change is being driven, so if you make a mistake in specifying the magnification by key operation, the movement of the optical system ends and the drive system stops. Until then, it is not possible to specify another magnification, resulting in extremely poor operability.

(Objective) The present invention improves this drawback and provides an image processing device that improves operability by allowing a user to specify another magnification without waiting for the end of movement of the optical system when the magnification is specified incorrectly. The purpose is to

(Structure) The present invention provides an image processing device that drives an optical system to a position according to a magnification according to an instruction from an operation section, comprising: a display means for displaying the magnification instructed from the operation section; means for enabling multiple instructions for different magnifications from the operating section while the optical system is being driven from an arbitrary position to a position according to the first magnification in response to instructions for the first magnification; and The last instruction of the plurality of instructions of different magnifications during driving to a position corresponding to the first magnification is set as a second magnification, and the optical system is moved to a position corresponding to the first magnification.
comprises an optical system driving means for driving to a position according to the second magnification after completion of driving to a position according to the magnification, and when the first magnification is instructed, the display means In addition to displaying the magnification, if instructions for different magnifications are received multiple times during driving from an arbitrary position to a position according to the first magnification according to the instruction of the first magnification, the optical system will display the first magnification. Even during driving to a position corresponding to the first magnification, the first magnification is changed and displayed multiple times.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the invention. To explain the case where the variable magnification key is operated while the optical system such as lenses and mirrors in a copying machine is being driven to the same magnification position, flip-flops FF1 and FF2 are activated when the optical system is being driven to the same magnification position. It is set. Then, the output of the flip-flop FF1 is applied to the base of the transistor Q1 via the buffer A1, and the transistor Q1 is turned on to light the equal-magnification display lamp L1. At the same time, the output of flip-flop FF2 is applied to the base of transistor Q2 via buffer A2, turning it on and exciting relay RA1.
Therefore, the magnification switching drive motor M is a relay RA.
When the normally open contact RA1-a1 of No. 1 closes, the optical system rotates in the normal direction and drives the optical system to the same magnification position. When the variable magnification key is operated to instruct magnification, the signal from this variable magnification key is sent to the flip-flop FF1.
, and the same-size display lamp L1 is turned off.
At the same time, the signal from the variable power key passes through the AND gate G1 by the output of the inverter 1N1 and sets the flip-flop FF3, and the output of the flip-flop FF3 is applied to the base of the transistor Q3 via the buffer A3, turning on the variable power display lamp L.
Turn on 2. In other words, the magnification display lamps L1 and L2 are switched at the moment the key is operated. However, since the flip-flop FF2 maintains its set state, the magnification drive motor M continues to rotate normally. When the optical system reaches the predetermined position at 1:1 magnification,
The same magnification position sensor S1 detects this and turns on, resetting the flip-flop FF2. That is, the flip-flop FF2 is reset by applying the output of the equal-size position detection circuit comprising the equal-size position sensor S1 and the resistor R1 to the reset input terminal via the inverter 1N2, and turning on the equal-size position sensor S1. When flip-flop FF2 is reset, relay RA1 is turned off and AND gate G2 is established. This and gate G
2 is established by inputting the outputs of flip-flops FF2 and FF4 via inverters 1N3 and 1N4, as well as inputting the output of flip-flop FF3 and the variable-magnification position detection circuit consisting of variable-magnification position sensor S2 and resistor R2, and resetting flip-flop FF2. and set flip-flop FF4.
Therefore, transistor Q4 is a flip-flop.
The output of FF4 is applied to the base via buffer 4A, turning on and exciting relay RA2. The magnification switching drive motor M is reversely rotated when the normally open contact RA2-e1 of the relay RA2 is turned on, thereby driving the optical system to the magnification changing position. Thereafter, when the optical system reaches the variable magnification position, the variable magnification position sensor S2 detects this and turns on, resetting the flip-flop FF4. In other words, the flip-flop FF4 is a variable magnification position detection circuit consisting of the variable magnification position sensor S2 and the resistor R2. The output is inputted to the reset input terminal via the inverter 1N5, and the variable magnification position sensor S2 is turned on, thereby being reset. When flip-flop FF4 is reset, the relay
RA2 is turned off and the magnification switching drive motor M is turned off. That is, the optical system is first set at the same magnification position, then driven to the variable magnification position, and then set at the variable magnification position. FIG. 2 is a timing chart showing the above operation.

Next, the case where the operation key is operated a plurality of times during equal magnification switching drive will be explained. During equal magnification switching drive, flip-flop FF2 is set and the magnification switching drive motor M is rotating in the normal direction. If the variable magnification key is operated here, the flip-flop FF will be turned on as described above.
1 is reset, the equal-magnification display lamp L1 goes out, flip-flop FF3 is set, and the equal-magnification display lamp L2 lights up. When the equal magnification key is pressed in this state, the signal from the equal magnification key resets the flip-flop FF3 and turns off the variable magnification display lamp L2, and at the same time, the signal from the equal magnification key is sent to the flip-flop FF through the AND gate G3 by the output of the inverter 1N6.
1 and lights up the 1x display lamp L1.
Inverters 1N6 and 1N1 have flip-flops.
The outputs of FF1 and FF3 are added, and when the magnification change key consisting of the equal magnification key and the variable magnification key is operated, the flip-flops FF1 and FF3 are set alternately and the equal magnification display lamps L1 and L2 are also alternately lit. However, since the flip-flop FF2 maintains its set state, the magnification switching drive motor M continues to rotate in the normal direction until the equal magnification position sensor S1 is turned on. If the last key operated during this same-magnification switching drive is the same-magnification key, the flip-flop FF2 is reset when the same-magnification position sensor S1 is turned on, and the magnification switching drive motor is activated. M stops and the magnification switching operation is completed. However, if the last key operated during the same magnification switching drive is the variable magnification key, the same magnification position sensor S1 is turned on and the same magnification switching operation is completed, and the AND gate G2 is established and the flip-flop FF4 is set. The magnification switching drive motor M starts rotating in reverse,
Thereafter, the magnification changeover operation is completed when the magnification change position sensor S2 is turned on. That is, if the magnification switching key is operated multiple times during the magnification switching drive, only the last operated key becomes effective and the mode of that key is entered. Note that the AND gate G4 has the outputs of the flip-flops FF2 and FF4 connected to the inverter 1N7,
1N8 and the output of the equal-magnification position detection circuit consisting of the equal-magnification position sensor S1 and resistor R1 and the flip-flop FF1, and when the AND of these inputs is established, the flip-flop FF2 is set.

Although the above embodiment is an example of a case where there is one type of variable magnification, it can be similarly implemented even when there are two or more types of variable magnification.

FIG. 3 shows another embodiment of the device. In this embodiment, the flip-flop FF in the above embodiment is
Instead of the output of 4 being input to AND gate G4 via inverter 1N8, timer T1 is set by the output of a circuit consisting of normally open contact RA2-a2 of relay RA2 and resistor R3, and the output of this timer T1 is input to inverter 1N9. It is input to AND gate G5 together with the output of flip-flop FF1 through AND gate G5, and the output of this AND gate G5 is input to AND gate G4 and the reset input terminal of flip-flop FF2. Similarly, the output of flip-flop FF2 is input to AND gate G2 via inverter 1N3, and instead, relay RA1
A timer T2 is set by the output of the circuit consisting of the normally open contacts RA1-a2 and the resistor R4, and the output of the timer T2 is inputted to the AND gate G6 together with the output of the flip-flop FF3 via the inverter 1N10, and the output of the AND gate G6 is is input to the AND gate G2 and the reset input terminal of the flip-flop FF2. Therefore, if the other operation key is operated while the magnification switching drive is being performed by operating one operation key, the predetermined time determined by the timers T1 and T2 has elapsed since the start of the magnification switching drive. At this point, the mode shifts to the other operation key. In addition, if one operation key is operated to drive the magnification change and the other operation key is not operated, the optical system will be turned on at the same magnification by turning on the magnification position sensors S1 and S2, regardless of timers T1 and T2. It will stop at the position or the magnification change position. Furthermore, if the magnification switching key is operated multiple times while the timers T1 and T2 are operating, only the last key operated becomes effective, and when the timers T1 and T2 turn on, the last key operated becomes effective. mode of the selected key. If a key is operated after the timer is turned on but before the magnification position sensor is turned on, the mode of that key is entered at the same time as the key operation. The time settings of the timers T1 and T2 are set to lengths that will not be affected by inertia or the rise of the motor M when the mode is switched after the timers are turned on. FIG. 4 is a timing chart showing the operation of the timer.

In this embodiment, when a key is operated during magnification switching drive, the mode shifts to another mode before the magnification is set to the current magnification, so the time required for switching drive can be shortened. Further, since the magnification switching drive is performed for a certain period of time or more before moving to another mode, the accuracy of the stopping position can be ensured.

(Effects) As described above, according to the present invention, in an image processing apparatus that drives an optical system to a position according to a magnification according to an instruction from an operation section, a display means for displaying the magnification instructed from the operation section. and, while the optical system is being driven from an arbitrary position to a position corresponding to the first magnification by the instruction of the first magnification from the operation section, different magnifications can be specified multiple times from the operation section. means, wherein the last instruction of the plurality of instructions of different magnifications during driving of the optical system to a position corresponding to the first magnification is a second magnification, and the optical system is moved to the position corresponding to the first magnification.
and an optical system driving means for driving to a position according to the second magnification after completion of driving to a position according to the magnification, and the display means displays the first magnification when the first magnification is instructed. In addition, if the optical system receives multiple instructions for different magnifications while driving from an arbitrary position to a position according to the first magnification instruction, the optical system changes to the first magnification. Even when the optical system is being moved to the corresponding position, the first magnification display is changed multiple times, so if you make a mistake in specifying the magnification, you can change the display to another without having to wait until the optical system has finished moving. The magnification can be specified, which improves operability.

[Brief explanation of the drawing]

Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
This figure is a timing chart of the same embodiment, FIG. 3 is a circuit diagram showing another embodiment of the present invention, and FIG. 4 is a timing chart of the same embodiment. FF1~FF4...Flipflop, G1~G
6...And gate, 1N1 to 1N10...Inverter, Q1 to Q4...Transistor, RA1,
RA2... Relay, M... Magnification switching drive motor, S1... Same magnification position sensor, S2... Variable magnification position sensor, R1 to R4... Resistor, T1, T2...
…timer.

Claims (1)

[Scope of Claims] 1. An image processing device that drives an optical system to a position according to a magnification according to an instruction from an operation section, comprising: a display means for displaying the magnification instructed from the operation section; means for enabling multiple instructions for different magnifications from the operating section while the optical system is being driven from an arbitrary position to a position according to the first magnification in response to instructions for the first magnification; and The last instruction of the plurality of instructions of different magnifications during driving to a position corresponding to the first magnification is set as a second magnification, and the optical system is moved to a position corresponding to the first magnification.
and an optical system driving means for driving to a position according to the second magnification after completion of driving to a position according to the magnification, and the display means displays the first magnification when the first magnification is instructed. In addition, if the optical system receives multiple instructions for different magnifications while driving from an arbitrary position to a position according to the first magnification instruction, the optical system changes to the first magnification. An image processing device characterized in that the display is changed from a first magnification a plurality of times even when the image processing device is being driven to a corresponding position.