JPH0364067B2 - - Google Patents

Description

[Detailed description of the invention]

<Technical field> The present invention provides a set 2 document that can set two types of originals on a document table and copy each of them separately.
The present invention relates to a copying device having a copying function. <Prior Art> An example of the operation of a copying process in a conventional copying machine having this one-set, two-copy mode is shown in the flowcharts of FIGS. 1A and 1B. In the explanation of the flowchart below, step ni is simply referred to as ni. This copier is
It has 0.7x, 0.8x, 0.9x reduction functions and 1.22x enlargement function. When the reduction specification key specifying 0.7x, 0.8x, or 0.9x or the 1.22x enlargement specification key is pressed (n1 to n4), the READY lamp is first turned off and the lens is moved to the position of each magnification. After (n5~n9, n9~n11+n13~n15, n17~n19),
Turn on the READY lamp (n8, n12, n16,
n20). If you do not specify reduction or enlargement, the image will be in the same size copy mode. When performing normal one copy per set, after completing the above magnification designation, the user inputs the predetermined number of copies and presses the print switch (n21 to n23). Then,
The copy cycle starts, copies the number of copies, and ends (n24, n25). On the other hand, 1
When performing set 2 copies, after inputting the number of copies, press the 1 set 2 copy button to set the 1 set 2 copy mode, and then press the print switch (n22, n26). In this 1 set 2 copy mode, for example, as shown in FIGS. 2A and B, two A4 size originals a1 and
For A2 or B5 size documents b1 and b2,
An image is transferred to copy paper for each original document. At this time, the second
After copying the number of copies from the original set on the left side of the figure, the process moves on to copying the original on the right side (n27 to n30). As described above, the conventional copying machine with the 1-set, 2-copy function is configured so that when the 1-set, 2-copy mode is set, the mode is executed regardless of the setting state of the original. For this reason, if the user leaves the document set in 1 set 2 copy mode and does not notice the mode setting, and sets a sheet on the left side of the platen (standard set position) and starts copying, intending to use 1 set 1 copy mode, the There is a drawback that after exposing the original setting area of the original, the right original setting area where no original is set is also exposed, resulting in a erroneous copying operation. <Object of the invention> The object of the invention is to solve the above-mentioned conventional drawbacks,
To provide a copying apparatus capable of monitoring the document setting state when setting the 1 set 2 copy mode and automatically canceling the 1 set 2 copy mode if the document is not set properly. <Structure and Effects of the Invention> In order to achieve the above object, the present invention includes a detection sensor that detects the original set on the document table, and a sensor that detects the two originals by the output of the detection sensor when the 1 set 2 copy mode is set. a document set state determining means for determining whether or not a document is set in both of the document setting areas; and one set when the document set state determining means determines that no document is set in both of the two document setting areas. The present invention is characterized by comprising normal mode return means for canceling the 2-copy mode and returning to the normal 1-set-1 copy mode. According to this invention, with the above configuration, 1 set 2
When setting the copy mode, if no originals are set in both of the two original setting areas on the document table, the 1 set 2 copy mode is automatically canceled and the mode is returned to the 1 set 1 copy mode.
Even if the 1 set 2 copy mode is still set and the original is set in only one original setting area, the set original will be printed without making a copy error when exposing an area where no original is set. Copying can be performed in the one-set-one-copy mode for only one copy, which contributes to improving the reliability of the copying apparatus. <Embodiment> FIG. 3 is a block diagram of the main part of the control section of a copying machine which is an embodiment of the present invention. The copying machine of this embodiment is similar to the conventional copying machine whose operation was explained with reference to FIG.
It differs from the conventional one in that it has a structure for performing processing in the 1 set 2 copy mode, which is different from the processing (n26 to n30) indicated by the broken line in FIG. 1A. This copying machine consists of a microcomputer system of 3 CPUs, 4 ROMs, and 5 RAMs.
1 and 2 are detection sensors for detecting whether or not an original is set on the original platen T, and the sensor output is given to the CPU 3 via the I/O 6.
7 is provided on an operation panel (not shown),
Key inputs are performed using keys for specifying the 1 set 1 copy mode or 1 set 2 copy mode, the input key for the number of copies, the magnification specifying key, etc. This key input data is given to the CPU 3 through the I/O6. The mode display section 8 consists of a mode display LED provided on the operation panel. FIG. 4 shows the arrangement of sensors 1 and 2 around the document table T, and FIG. 5 shows the document setting area of the document table T. As shown in Fig. 5, the document setting area of the document table T is for holding two A4 size documents a1 and a2.
Alternatively, the size is such that two B5 size originals b1 and b2 can be placed side by side, and the left set area is set as the reference set position. The diagonal lines in the figure indicate the overlapping area when A4 and B5 size originals are set. Sensor 1 is a pair of light emitting sensor SL′ and light receiving sensor
SL, and sensor 2 is also a set of light emitting sensors.
It consists of SR′ and light receiving sensor SR. Luminescence sensor SL′,
SR' emits infrared light, and outputs the infrared light toward a reflecting plate R that moves in conjunction with opening and closing of the document cover C, as shown in FIG. The infrared light from the light emitting sensor SL' reflected by the reflector R is transmitted through the approximate center of the diagonally lined document set area on the left, and is transmitted to the light receiving sensor.
Received by SL. Further, the infrared light from the light emitting sensor SR' reflected by the reflecting plate R is transmitted through approximately the center of the diagonally lined document set area on the right side, and is received by the light receiving sensor SR. With such a sensor arrangement, it is possible to detect the originals set in each of the two original setting areas for each area. That is, when two A4 or B5 size originals are set in each original setting area in the 1 set 2 copy mode, the infrared light is blocked by the set originals and is not received by the light receiving sensors SL and SR. Both sensors 1 and 2 are turned off, and it is possible to detect that two originals are normally set. This document detection is performed when the document cover C is closed. When the document cover C is closed after setting the document on the document table T, the cover presses the reflector R and tilts it at a predetermined angle. The light is reflected by the reflector R and is projected toward each light receiving sensor. The output of each sensor when the original is set is RAM5.
is stored in the sensor output memory area. Table 1 below shows a comparison table of the document set state determined by the combination of sensor outputs of sensors 1 and 2 according to the amount of light received by the light receiving sensors SL and SR during the 1 set 2 copy mode.

[Table] In the same table, H (ON) indicates that the light receiving sensor has received infrared light and has detected that the document is not set, and L (OFF) indicates that the light receiving sensor has received infrared light. This indicates that the state in which the document is set has been detected. In the 1 set 2 copy mode, as described above, when both sensors 1 and 2 are at "L", it is determined that a document is set in both document set areas, and this is indicated in the document set state column. It is represented by 〇. In cases other than this combination of sensor outputs, the document is determined to be in an unsatisfactory state as the document is set in only one document set or not in both document sets, and is indicated by an x in the table. Next, the specific operation of the 1 set 2 copy mode will be explained with reference to the flowchart of FIG. The processes n40 to n47 shown in FIG. 6 correspond to the processes (n26 to n30) surrounded by broken lines in FIG. 1A. When the 1 set 2 copy mode designation key is pressed (see n22 above), the 1 set 2 copy mode display LED is turned on at n40. Next, when the document cover C is closed, the sensor outputs of sensors 1 and 2 stored in the RAM 5 are read out, and the document set state is determined based on Table 1 mentioned above (n41,
n42). Both sensor outputs of sensors 1 and 2 are “L”
When this is the case, it is determined that originals are set in both original setting areas, and the process moves to execution of 1 set 2 copies starting from n43. This 1 set 2 copy process starts by pressing down the print switch (n43), and first copies the set number of copies of the document in the left area, and then copies the right area (n44 to n47). . On the other hand, when the sensor outputs of sensors 1 and 2 are both "H" or only one is "L", it means that the original is not set in both original setting areas, or that the original is set in only one area. It is determined that the condition is As a result of this judgment, if the original is set incorrectly (i.e., the original is not set in both original setting areas even though the 1 set 2 copy mode is set), cancel the 1 set 2 copy mode and Prohibit execution of mode processing (n48). After this cancellation, n48→n23 (first
(See Figure A) and automatically returns to the 1 set 1 copy mode. Therefore, even if the user sets the original in the 1 set 2 copy mode without realizing it and starts copying only in the area to the left of the reference setting position, the 1 set 2 copy mode is detected and the original set state is detected. 2 Copy mode is automatically canceled and 1 for only the left area
Since the set 1 copy is executed, it is possible to prevent an erroneous copy operation such as when an area where there is no document on the left side is exposed. Incidentally, the sensors 1 and 2 described above are for detecting the original in the original setting area, but these sensors may also be used as a sensor for detecting the original size. Note that the document set state determination processing based on Table 1 mentioned above in n41 and n42 corresponds to the document set state determination means of the present invention, and n48 corresponds to the normal mode return means of the present invention. In the above example, when it is determined that the document is set incorrectly during 1 set 2 copying, the 1 set 2 copy mode is automatically canceled regardless of the user's mode cancellation operation. Furthermore, the mode may be canceled after it is determined that the document is set incorrectly and a warning is issued for a certain period of time. n50~n57 in Figure 7 is n40~ in Figure 6 above.
The content is the same as n47. In this case, if it is determined that the original is set incorrectly, first turn off the print switch, then turn off the 1 set 2 copy mode display LED.
A timer (not shown) that monitors the blinking time is preset to a predetermined time-up time X (n58,
n59). This timer start causes the LED for displaying 1 set 2 copy mode to blink at intervals of 1/100 seconds, for example (n60, n61). In this way, by blinking the 1 set 2 copy mode display LED until the preset time X is exceeded, the user is warned that the document is set incorrectly. With this warning, the user can clearly determine if the original is set incorrectly when the 1 set 2 copy mode is set, and can select to change to 1 set 1 copy mode or continue the 1 set 2 copy mode. improve operability. If the user wishes to cancel the 1 set 2 copy mode during the warning, press the mode clear key (not shown).
Just operate it (n62). In this case, before the preset time
n66). If such a mode clear operation is not performed before the preset time X has elapsed, the process proceeds to automatic cancellation of the 1 set 2 copy mode due to the preset time elapse (n63, n64).
In this case as well, after turning off the mode display LED, the print switch is turned on (n65, n66).
By clearing the mode or ending the warning during a warning,
When the 1 set 2 copy mode is canceled (n64 or n67), after the print switch is turned on (n66), the mode returns to the 1 set 1 copy mode as in the previous embodiment.

[Brief explanation of drawings]

Figures 1A and B are flowcharts showing the copying process procedure of a conventional copying machine with 1 set 2 copy mode. Figures 2A and B are diagrams showing two originals of different sizes set on the original table. , FIG. 3 is a block diagram of the main control section of a copying machine according to an embodiment of the present invention, and FIG. 4 is a side view of the area around the document table showing the arrangement of sensors 1 and 2 used in the copying machine according to the embodiment. Fifth
The figure shows the document setting area of the document table of the copying machine of the same embodiment, FIG. 6 is a flowchart showing the specific operation of one set of two copies in the copying machine of the same embodiment, and FIG. This is a flowchart showing the specific operation of one set of two copies in another copying machine to which the present invention is applied. 1, 2...Sensor (detection sensor).

Claims (1)

[Scope of Claims] 1. In a copying apparatus having a normal 1 set 1 copy mode and a 1 set 2 copy mode in which originals set in each of two original setting areas of a document table are copied for each original, a detection sensor that detects a set original; and an original set state determining means that determines whether or not an original is set in both of the two original setting areas based on the output of the detection sensor when the 1 set 2 copy mode is set. and normal mode return means for canceling the 1 set 2 copy mode and returning to the normal 1 set 1 copy mode when the document set state determining means determines that no document is set in both of the two document setting areas. A copying device comprising: 2. The normal mode return means has means for issuing a warning for a certain period of time from when the document setting state determining means determines that no document is set in both of the two document setting areas until the 1 set 2 copy mode is canceled. A copying apparatus according to claim 1.