JPS63128370A - Copying machine - Google Patents

Abstract

PURPOSE:To prevent the setting of a copying condition from being changed unguardedly, by performing mode inversion between an overall permission mode and an overall prohibition mode when a locking means is operated independently, and setting a partial a partial permission mode when the locking means is operated with one of the setting operating operating means in the overall prohibition mode. CONSTITUTION:When a lock key 8 is operated independently, the mode inversion is performed between the overall permission mode which permits the change of the setting of the copying condition extensively, and the overall prohibition mode with prohibits it extensively. Furthermore, when the lock key 8 is operated with one of setting operating means (density setting means 2a and 2b, magnification setting keys 3a-3f, etc.) in the overall prohibition mode, the partial permission mode which permits only the change of the setting of the copying condition with a type corresponding to the setting operating means, is set. Thus, since it is possible to perform the overall prohibition of the change of the setting of the copying condition, the copying condition can be prevented from being changed even when the setting operating means is operated accidentally, and erroneous copying from being generated. In such way, it is possible to prevent a time, a labor, and a material from consumed wastefully.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a copying machine, and more particularly to a copying machine that can prevent copying conditions from being changed erroneously.

When copying with a conventional copier, the density 1x, paper size,
It is necessary to set the contents of each type of copying condition such as the number of copies.

For this reason, copying machines have a density setting key, a magnification setting key,
Setting operation means such as a paper size setting key and a number of sheets setting key are provided, and by operating them, the copying conditions can be changed at any time.

Problems with the Prior Art In conventional copying machines, copying conditions can be changed at any time by operating a setting operation means such as a density setting key. This has the problem that the copying conditions are changed.

In other words, there is a problem in that by carelessly touching the setting operation means, the settings may be changed to inappropriate copying conditions, resulting in unnecessary copying and wasting time, labor, and materials. Ta.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a copying machine that can prohibit changes in settings of copying conditions as necessary and prevents careless changes in settings of copying conditions. .

Structure of the Invention The copying machine of the present invention is a copying machine having a setting operation means for setting the content of each type of copying condition such as density 9x, and a locking means, and the locking means is independently operated. When the mode is reversed between a full permission mode in which changes in copy condition settings are completely permitted and a full prohibition mode in which changes are completely prohibited, and the locking means is operated together with one of the setting operation means during the full prohibition mode. The present invention is characterized in that it is provided with a mode control means that sets a partial permission mode in which only the setting change of the type of copying condition corresponding to the setting operation means is permitted when the setting operation means is changed.

Operation When the copying machine of the present invention is in the full permission mode, the copying conditions can be changed at any time in the same way as a normal conventional copying machine.

However, if the locking means is operated to set the complete prohibition mode, the settings of the copying conditions will not be changed at all even if the setting operation means is touched, so it is possible to accidentally touch the setting operation means and make incorrect settings. Completely prevented. Therefore, unnecessary copying will not be performed.

Further, since the partial permission mode can be set, only necessary types of copying conditions can be changed, and erroneous settings of other types of copying conditions can be prevented.

EXAMPLES Hereinafter, the present invention will be explained in more detail based on examples shown in the drawings. Here, FIG. 1 is a plan view of an operation panel of a copying machine according to an embodiment of the present invention, FIG. 2 is a circuit diagram of operation keys, a control circuit, and a display, and FIG. 3 is an operation flowchart of condition setting processing. FIG. 4 is a flowchart showing the operation flow of lock key processing. Note that the present invention is not limited to the embodiments shown in the figures.

The operation panel 1 shown in FIG. 1 includes density setting keys 2° and 2g, magnification setting keys 31 to 3f, a paper cassette setting key 4, number of sheets setting keys 5a to 5o, and a copy button 6. , further includes a lock key 8. Also, a group of concentration display LEDs 12 and a magnification display LED 1
3 a to 13t, paper cassette display LED 14a,
14b, lock indicator 16, numeric indicator 17, and %
It has a display 18.

FIG. 2 shows a circuit that controls the operation keys and display LEDs. The status of the operation keys group 9 is read by cpulo, and the CPU10 drives the LED group 11 according to the read status of the operation keys group 9. .

Next, the operation will be explained with reference to FIGS. 3 and 4.

First, the copying machine is powered on, and after predetermined initial processing is performed, a condition setting process shown in FIG. 3 is started.

In this condition setting process, first, the contents of the copying conditions are initialized (Sl). For example, the density is "medium", the 2x magnification is "100%", the paper cassette is the "upper" cassette, and the number of sheets is "1".
” is initialized as follows. And the corresponding LED
, lights up the display.

For example, the fourth density display LED 12 is lit, and the magnification display 1. The ED 13b is lit, the display ED 14a of the upper cassette is lit, "1" is lit on the numeric display 17, and the copy button LED 19 is lit.

In addition, the initial setting is a full permission mode in which changes in the settings of the copy conditions are completely permitted.

Next, lock key processing is performed (S2).

In the lock key process, as shown in FIG. 4, it is checked whether the lock key 8 has been pressed (S11).

If it has not been pressed, the process returns to FIG. 3 without doing anything, and it is checked whether a setting operation such as the density setting key 2a has been performed (S3).

If no setting operation is performed using the density setting key 2□, etc., the process returns to step S2 and the same process is repeated.

If the setting operation is performed, the process moves to step S4, and it is checked whether the prohibition mode related to the operation key for which the setting operation was performed has been canceled.

Since the mode is initially full permission mode, all setting operation keys are not in prohibition mode, and the process moves to step S5.

In step S5, the copying conditions are changed to the set contents, and then the process returns to step S2.

In this way, the settings of any type of copying conditions can be changed at any time, resulting in the same operation as a conventional copying machine.

On the other hand, when the lock key 8 is pressed, step Sll in FIG.
The process then moves to step S12.

In step SL2, it is checked whether the current mode is the total prohibition mode, and if it is not the total prohibition mode, the total prohibition mode is set (313), the lock indicator 16 is turned on (314), and the process returns to step S3.

After entering the total prohibition mode, all setting operation keys are set to the prohibition mode, so the setting operation is performed and the process returns to step S3.
Even if the process moves from step S4 to step S4, the process returns from step S4 to step S2 and does not pass through step S5. Therefore, the settings of the copy conditions are not changed. - Thus, if the total prohibition mode is set, even if the density setting key 2a or the like is accidentally touched, the copying conditions will not be changed, and erroneous copying will be prevented.

Now, when the lock key 8 is pressed alone in the total prohibition mode, the process moves from step S12 to step S15.

In step S15, it is checked whether a setting operation key such as the density setting key 23 is pressed.

If the lock key 8 is pressed alone, the total prohibition mode is canceled (S16) and the lock indicator 16 is turned off (S17).

In this way, the total prohibition mode is canceled and the total permission mode is set, and all copying conditions can be changed at any time.

On the other hand, when in the total prohibition mode, if any of the setting operation keys and the lock key 8 are pressed at the same time, the step S
15, the process moves to step 318.

In step 818, only the inhibit mode for the setting operation key that was pressed is released. Then, the lock indicator 16 blinks, and the display LED corresponding to the setting operation key that was pressed also blinks (S19).

This is the partial permission mode, and if you operate a blinking setting operation key at this time, the prohibition mode for that setting operation key is canceled, so the process moves from step S4 to step S5, and the settings of the copy conditions can be changed. It will be done.

However, even if a setting operation key other than the blinking setting operation key is operated, it is checked in step S4 that the prohibition mode of that setting operation key has not been released, so the step S5 is skipped. Returning to S2, the condition settings are not changed.

In this way, it is possible to change the settings of only the desired type of copying conditions, and the copying conditions for other types are prevented from being erroneously set even if an operation key is touched by mistake.

As can be understood from FIG. 4, if the lock key 8 is pressed alone during the partial permission mode, the full prohibition mode will be activated.
If any of the setting operation keys and the lock key 8 are pressed at the same time, a partial permission mode for that setting operation key is entered.

In another embodiment, the lock key 8 may be
Pressing alone will set you to full permission mode.

Effects of the Invention According to the present invention, in a copying machine having a setting operation means for setting the content of each type of copying condition such as density 1x, when the lock means and the lock means are operated alone. The mode is reversed between a full permission mode in which changes in copying condition settings are completely permitted and a full prohibition mode in which changes are financially prohibited, and the locking means is operated together with one of the setting operation means during the full prohibition mode. A copying machine is provided, characterized in that the copying machine is equipped with a mode control means for setting the copying condition to a partial permission mode in which only the setting change of the type of copying condition corresponding to the setting operation means is permitted when the copying condition is changed. Since setting changes can be completely prohibited, copying conditions are prevented from being changed even if the setting operation means is touched by mistake, and erroneous copying is prevented. Therefore, waste of time, labor, and materials can be prevented.

In addition, since it is possible to change the settings of only some types of copy conditions, it is convenient to be able to change the copy conditions at any time, and the copy conditions can be changed even if the setting operation means is touched by mistake. It is also possible to achieve both safety and prevention.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an operation panel of a copying machine according to an embodiment of the present invention, FIG. 2 is a circuit diagram of operation keys, a control circuit, and a display, FIG. 3 is an operation flowchart of condition setting processing, and FIG. 4 is an operation flowchart of lock key processing. (Explanation of symbols) 1...Operation panel 2a, 2t...Density setting key 3, ~3f...Magnification setting key 4...Paper cassette setting key 5, ~5o...Number of sheets setting key 6 ...Copy button 8...Lock key 9...
Operation key group 10...CPU 11...LED group 13a
, 134... Magnification display ED 14a, 14b... Paper cassette display LED 16...
・Lock indicator 17...Numeric display 18...% indicator.

Claims (1)

[Claims] 1. In a copying machine having a setting operation means for setting the contents of various types of copying conditions such as density and magnification, a lock means and when the lock means is operated alone. The mode is reversed between a full permission mode in which changes in the settings of copying conditions are completely permitted and a full prohibition mode in which changes are completely prohibited, and the locking means is operated together with one of the setting operation means during the full prohibition mode. 1. A copying machine characterized by comprising a mode control means for setting the mode to a partial permission mode in which only setting changes of the type of copying conditions corresponding to the setting operation means are permitted.