JPH059782B2 - - Google Patents

Description

[Detailed description of the invention]

<Technical Field> The present invention relates to a copying machine capable of making two copies per set, which is equipped with a function to prevent malfunctions when a document is improperly set. <Prior art and its disadvantages> In a conventional copying machine capable of making two copies per set, a user can make two copies in one set two copy mode.
If the user does not cancel the mode after setting and copying several pages of originals at once or making a copy of a book, and the timer counter has not automatically canceled the mode, the next copy will be made. The person taking the document sets a single document (for example, A4 size) without noticing the above mode settings.
When you press the READY button, you scan once and then expose the right side of the 1 set 2 copy mode again, resulting in a copy error. <Purpose of the Invention> The present invention is to prevent the above-mentioned malfunction from occurring, and is capable of detecting whether or not the document is set properly and starting the copying operation only when it is properly set. The purpose of the present invention is to provide a copying machine that achieves the following. <Structure of the Invention> The present invention provides a copying apparatus equipped with a 1-set, 2-copy mode, which includes sensors that are provided corresponding to the document setting areas for two screens and detect the appropriate state of the document to be set; a mode setting key for setting the 2-copy mode; a cancel key for canceling the 1-set 2-copy mode; and a mode setting key for setting the 1-set 2-copy mode using the mode setting key. a display section that displays an indication of an improper state when the proper state is not detected; means for inhibiting the start of a copying operation when the sensor detects the improper state in the 1 set 2 copy mode; means for allowing the start of a copying operation upon detection of a proper state by the sensor, and for allowing the start of copying in a normal copy mode by canceling the prohibited state by the prohibiting means through a release operation using the release key; This is a copying machine with a function to prevent malfunctions. With the above configuration, in the 1 set 2 copy mode, if the original is properly set in the area of 2 screens, a copy can be obtained, but if it is not properly set, a message to that effect will be displayed and the copying operation will start. is prohibited, and copy errors can be prevented in advance. Further, if the 1 set 2 copy mode is canceled, copying can be performed in the normal copy mode, and a copying apparatus with excellent operability can be provided. <Embodiment> FIGS. 1 and 2 show an operation unit and a control block diagram of a copying apparatus according to an embodiment of the present invention. In these figures, 1 is the operation unit of the copying machine body, 2 is 1 set 2 copy mode keys, 3 is the mode display LED,
4 is an I/O into which signals from the document detection sensor and operation unit keys are input, and outputs the signal to the operation unit mode display LED; 5 is the CPU; 6 is the RAM; 7 is
It is ROM. Figures A, B, and C each show the original setting area in the 1 set 2 copy mode, where A is the original setting area for A4 size paper, B is the original setting area for B5 size paper, and C is the original setting area for these two areas. They are overlapped, and the parts included in both are shown with diagonal lines. Sensors 1, 1a, 1b, 2,
By providing 2a and 2b, it is possible to detect one document at a time in the 1 set 2 copy mode, whether it is A4 or B5. FIG. 4 shows the parts that detect the set state of the original, where 8 is the original cover, 9 is the original table glass, 10 is a light emitting sensor that emits infrared rays, 11 is a reflector, 12 is a light receiving sensor, and the original cover 8 These sensors detect the presence or absence of a document and whether it is in a proper state when the document is closed. Luminescence sensor 1
0 corresponds to 1a and 2a in FIG. 3C, and the light receiving sensor 12 corresponds to 1b and 2b. That is, when an original is set, the light receiving sensor 12 does not receive infrared light and the signal is zero, indicating that there is an original. If no original is set, infrared rays are received and the signal becomes 1, indicating that there is no original. Indicates that there is no The operation when two sets of such sensors are provided is as follows.

[Table] These signals are stored and processed by a program. FIG. 5 shows a basic flowchart 1 of a conventional copying apparatus, and the present invention is obtained by replacing the dotted line frame block A in the diagram with flowchart 2 of FIG. To explain based on Figure 5, first n10
When the number of copies is input at step n11 and the 1 set 2 copy mode is selected, the program advances to block A which controls the operation in this mode, and the copy operation is performed. Conventional copiers capable of making two copies of one set simply execute a program when a mode is selected, resulting in the above-mentioned problems. Therefore, in the present invention, a sensor detects the document,
If the original is set incorrectly, a warning is displayed to prevent copying errors.
The user confirms that the original is set again, or cancels the 1-set-2-copy mode to make a copy. The process will be explained below using flowchart 2 shown in FIG. 1 at n11 of flowchart 1 in Figure 5
If the Set 2 copy mode key is not operated,
Print switch operation is confirmed. and,
When the print switch is operated, the copying operation in the normal copy mode is started, and the set number of copies is made. However, when the 1 set 2 copy mode key is operated, the flowchart shown in Fig. 6 starts. Moving on to step 2, the mode display LED on the operation section lights up (step n1). Then sensor 1 or 2
If the signal is 1 (ON), it means that there is no original in both places (the original is not placed in the 1 set 2 copy mode), and the READY lamp is turned off (step 1).
n2), the 1 set 2 copy mode display LED blinks (step n3) and the copy start signal is not accepted. The above LED will flash to alert the user until the document is checked and re-set. When the user confirms and corrects the original by setting it, the signals from sensors 1 and 2 both become zero, the mode display LED changes from flashing to lit (step n4), and the READY lamp lights up (step n5), and the copy is started. It becomes a permissible state to accept a start signal. In other words, if the document is properly set for two screens, it will be in a permissible state in which it will receive a start signal for the copying operation in the 1 set 2 copy mode, and if the print switch is operated in this permissible state, the copying operation will start. Start. Also, after moving from flowchart 1 to flowchart 2 above, when the 1 set 2 copy mode is canceled (step n6), the mode display LED turns off (step n7) and the READY lamp lights up (step n8). ), return to flowchart 1. That is, as described above, the start of the copying operation in the normal copy mode is permitted, and the copying operation is started by operating the print switch. <Effects of the Invention> As described above, according to the copying apparatus with the malfunction prevention function of the present invention, when the copying apparatus is in the 1 set 2 copy mode, copying is started without the document being properly set. However, a sensor detects whether or not the original is set properly, and if it is not set properly, a warning is displayed to that effect, and the document does not move to the copy start operation. Because there are
Miscopying as described above can be prevented from occurring. Further, if the 1 set 2 copy mode is canceled based on the warning display, the reception of the copy start signal is allowed, and the copy process in the normal mode can be started immediately.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the operating section of a copying machine according to an embodiment of the present invention, FIG. 2 is a block diagram of the control section of the same device, and FIGS. 3 A, B, and C are explanations of the document setting portion of the same device. 4 is a block diagram of the part that detects the document set state in the same apparatus, FIG. 5 is a basic flowchart showing the operation of a conventional copying apparatus having 1 set 2 copy mode, and FIG. 6 is a diagram of the present invention. 3 is a flowchart showing part of the operation of the copying apparatus. 2...1 set 2 copy mode key, 3...mode display LED, 5...CPU, 10, 12...sensor.

Claims (1)

[Scope of Claims] 1. 1 set 2 copy mode in which copies of the originals set in the original setting areas for two screens set on the original table are separately copied onto two sheets of paper for each screen. A copying apparatus equipped with the following: a sensor provided corresponding to each of the two screen original setting areas to detect the appropriate state of the set original; a mode setting key for setting the 1 set 2 copy mode; and 1 set 2 copy mode. A release key for canceling the copy mode, and a display indicating an inappropriate state when the sensor does not detect the proper state of the document set for two screens when the mode setting key is set to the 1 set 2 copy mode. means for prohibiting the start of a copying operation upon detection of an improper state by the sensor during the 1 set 2 copy mode; and means for inhibiting the start of the copying operation when the sensor detects an appropriate state during the 1 set 2 copy mode. and a means for allowing the start of copying in a normal copy mode by canceling the inhibited state by the inhibiting means by a release operation using the release key.