JPS61145481A - System for controlling power source of copying machine - Google Patents

Abstract

PURPOSE:To attain to conserve labor, by combining a microcomputer and a clock with a calender and making it possible to turn the power source of a copying machine OFF only other than a holiday while preventing the copying machine from turning-ON on a holiday and enabling the precise setting of OFF-time on a day other than a holiday. CONSTITUTION:An input/output apparatus (I/O)2, a non-volatile memory 7 and a real time clock 8 are provided. A memory 7 is supported by a battery 6 so as to hold data even after the supply of a power source to a copying machine is cut off. The clock 8 is equipped with calender function and alarm function and can succeed clock operation, even when the power source of the copying machine is turned OFF, by the supply of the power source from the battery 6. The date and time data outputted from the clock 8, the set ON-time stored in I/O 2 and holiday data are collimated to turn the power source ON at the set time other than a holiday. By this method, the precise setting of the ON-time can be performed on a day other than a holiday and labor can be conserved.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a power control method for a copying machine, and in particular to a copying machine that has a built-in clock with a calendar and can automatically and finely control the power on and off. Regarding power control method.

[Prior Art] Conventionally, when it is desired to automatically control the power supply of a copying machine, for example, a timer is connected to the power supply of the copying machine, the power on and off times are set in the timer, and the power is turned on at the set time. I was trying to turn the power on and off.

This power on/off control method requires setting a timer that is installed separately from the copying machine each time, making the settings cumbersome and making it difficult to control the power switch on the copying machine. There is a drawback that if an operation is forgotten, the copying machine will not turn on even if the timer is turned on, making it impossible to achieve the intended purpose.

Furthermore, although recent copying machines have a built-in controller using a microcomputer to comprehensively control various aspects of the copying machine, such a controller is not fully utilized. On the other hand, due to the drop in chip prices, it is no longer an economic problem to use a controller with a large capacity.

[Objective] In view of the above circumstances, the object of the present invention is to incorporate a clock with a calendar into a copying machine and connect it to a built-in microcomputer to perform fine-grained power-on control. It is an object of the present invention to provide a power supply control method for a copying machine that saves labor and energy and is also advantageous in terms of safety.

[Configuration] In order to achieve the above object, the present invention includes an input device for inputting power on time, power off time, and holiday data, a nonvolatile memory for storing data input from this input device, and a calendar. a calendar clock and an output device for controlling the power supply of the copying machine, and comparing the set on time output from the calendar clock with the on time and holiday data stored in the nonvolatile memory, The feature is that the power is turned on.

Hereinafter, a detailed explanation will be given based on one embodiment of the present invention.

FIG. 1 is a block diagram of a power supply control system for a copying machine according to an embodiment of the present invention.

In the figure, 1 is a display/operation unit equipped with input keys such as a numeric keypad and a display device such as an 8-segment LED; 2
sends input signals from the display/operation unit 1 to the CPU (central processing unit), or displays/displays data from the CPU.
10 (input/output device f) sent to the operation unit 1; 3 is a ROI III (read-only memory) storing a program for controlling the power supply of the copying machine or controlling the entire copying machine; 4;
is a RAM (random access memory) that stores temporary data such as flags necessary for control;
Reference numeral 5 denotes a CPU which processes data according to the program in the ROM 3 and controls each part of the copying machine.

6 is a battery that backs up a non-volatile memory and a real-time clock; 7 is a non-volatile memory that is backed up by the battery 6 so as to retain data even after the power supply to the copying machine is cut off; 8 will be described in detail later; It is a real-time clock equipped with a calendar function, an alarm function, etc., and can continue clock operation even when the power to the copying machine is turned off by supplying power from the battery 6.

Further, 9 is an I10 port that sends data from the CPU 5 to the driver, and IO is a driver that drives various loads using signals from the I10 port 9.

The copying machine according to the present invention can be divided into three states (modes) from the viewpoint of power supply.

(1) One is a mode in which all power supply to the copying machine is cut off (hereinafter referred to as "off mode").

Even in this case, the nonvolatile memory 7 and the real-time clock 8 are supplied with the power necessary for data retention by the battery 6.

(2) The second part is the entire copying machine, that is, the main control board.

This is a mode (hereinafter referred to as "on mode") in which normal copying is possible while power is supplied to the fixing heater, various indicators, etc.

(3) The last mode is a mode (hereinafter referred to as ``sleep mode'') that supplies power only to the main control panel, that is, only to the CPU 5, memory, I10 port, etc. It looks like it is in "off mode" because some or all of it has disappeared, but the internal program is still running, so you can start supplying power to the copier using software, and if you set the conditions, It is possible to automatically shift to "1-on mode".Here, turning off the power means shifting from "5-on mode" to "sleeve mode", and turning on the power means shifting from "5-on mode" to "sleeve mode". This means a transition from "sleeve mode" to "on mode 1'."

Next, the configuration of the real-time clock 8 will be explained.

Figure 2 is a block diagram showing the internal structure of the real-time clock 8. In Figure 1, 20 is a crystal oscillator, 21 is a frequency divider, 22 is a clock hold, 23 is an adjustment hold, 24 is a controller, and 25 is an address decoder. ,2
6 is the bus control, 27 is the time and date register,
28 is a clock select, 29 is a clock output, 30 is a clock output terminal, 31 is an alarm register,
32 is a comparator, 33 is an alarm output, and 34 is an alarm terminal.

Here, 03CIN is the crystal oscillator connection terminal, OSCO
UT is its output terminal, from here 32.768KHz
is output. cs and d are terminals used to select this real-time clock 8 from an external device, and C3=
When H, C3=L, it becomes valid (enabled), the real-time clock 8 becomes selected, and data can be exchanged with an external device. C8 is connected to the power down detection section of the peripheral circuit power supply, and the ball is connected to CPU.

The clock output terminal 30 is a reference clock output terminal,
It is an open drain output, and eight modes can be selected depending on the contents of the clock select register as shown in FIG. 3. ++AO to A3 are address bins and are connected to the CPU address bus. ■、■
is an I10 control input, and Do~03 is a bidirectional data bus, which is connected to the data bus of the CPU 5.
ALARM is the alarm output terminal, and the alarm signal and 16
It outputs 7 and 17 clock pulses and is an open drain output.

FIG. 3 is an explanatory diagram illustrating assignment of register addresses in the work area within the real-time clock 8. Note that this register is BANKl, BAN
It consists of two series of KO, and in the figure, X indicates do when writing.
It doesn't care, and always becomes 0 when reading.

The contents of each register to which these addresses 0 to D are set can be read and written. However, the adjustment register can only be written to.

Next, to explain the operation of this real-time clock 8, a signal is input from the clock hold 22 to the register 27 in units of seconds. This register 27 has a counter configuration that can count seconds, minutes, hours, days of the week, months, and years.

Then, the year, month, day of the week, hour, minute,
Writing and reading of seconds is performed by specifying an address from the address line and writing and reading data to the specified address in accordance with a control signal.

In other words, in response to a request from someone, and according to a signal from the controller 24, the address lines A1 to A3 (see Figure 3 for address assignment) connected to the address bus of the CPU and the data of the CPU to this addressed address are Data is written or read from data lines Do to D3 connected to the bus (that is, bidirectional data transmission).

In this case, under the control of the controller 24, BANKl
and BANKO are switched, and in BANK 1, writing to and reading from the alarm register 31 is performed, and in BANKO, writing to and reading from the date 1 and time register 27 is performed.

In this way, the 1st date and time are set in the register 27, and the alarm date and time are set in the alarm register 31.
is set to

Therefore, these set dates and times are compared in a comparator 32, and if they match, an alarm signal is outputted from the comparator 32 from the alarm terminal 34 via the alarm output 33.

Note that the address bus and data bus are activated by enable signals from cs and tori. Also.

A reference clock is output from the clock output terminal 30. Furthermore, the adjust hold 23 is used for setting the seconds.

Next, control of the power supply of the copying machine will be explained.

Considering a typical office where a copying machine is installed, in most cases there are two days off per week or two days off every other week, so the copying machine is used on Mondays through Fridays, and on Saturdays there are days when it is not used and days when it is used. You can assume that you won't be using it on Sundays, so just turn the copier on and off according to that schedule11).

For example, if the start time is 8:30 a.m., 8:30 a.m. is the start time.
If you set the power to turn on at around 5 minutes, you can make copies immediately when you start work at 8:30 without waiting for the warm-up time, and if you set the power to turn off when you leave the office, you can make copies immediately after leaving work. It also prevents forgetting to turn off the clock, which is advantageous in terms of energy saving and safety.

A. Setting the date when the copying machine is not used As mentioned above, the real-time clock 8 has a calendar function, and once the date and time are set, the date, time, and day of the week can be known for a long time. Therefore, if the dates of days when the copying machine is not used, such as Sundays, partial Saturdays, public holidays, and summer/winter vacations, are stored in the nonvolatile memory 7, the power of the copying machine can be turned on and off automatically. is possible.

It is necessary to set the power on time and power off time on days when the copying machine is to be used, but I will explain how to set these later, but first I will explain how to set the days when the copying machine is not used.6 As an example, August and September 1984 as shown in Figure 4.
We will explain how to store the monthly calendar in memory.

This operation is possible only when the copying machine is in "on mode", and uses the numeric keys, print key, 8-segment LED, etc. of the display/operation unit 1.

FIG. 5 shows a part of the display/operation section 1. In the figure,
50 represents an input key consisting of a numeric keypad 50-1, a clear key 50-2, and a mode key 50-3, and 51-1
51-2 is a first LED display section, 51-2 is a second LED display section, and 52 is a print key.

Normally, Sundays are closed, and it is troublesome to input the dates of those Sundays (hereinafter referred to as regular holidays) from the display/operation panel 1, so if you can specify the regular holidays of the week, In addition, all you have to do is input the days off from Monday to Saturday (hereinafter referred to as irregular holidays).In other words, you can broadly divide it into two memory tables: a regular holiday table and an irregular holiday table.

First, you specify a regular holiday, but the real-time clock 8 has a counter that represents the day of the week as a one-digit number.For example, if Sunday is set to 0, Monday is set to 1, Tuesday is set to 2, and so on. expressed in numbers. Therefore, it is possible to specify regular holidays by creating a memory table consisting of numbers corresponding to the days of the week. This memory table is created in 7 bytes from address 5000H (H indicates a hexadecimal number; the same applies hereinafter) to address 5006H of the nonvolatile memory 7, and the label of the first address is TBWEEK.

Below, TBWEEK is stored in non-volatile memory 7 by CPU.
The procedure for creating the will be explained with reference to the subroutine flowchart 5uai shown in FIG.

First, run 5 from the main routine (not shown) on the CPU.
When UB1 is called, if the mode key 50-3 in the input key 50 and "1" on the numeric keypad 50-1 are pressed, the regular holiday setting mode (mode 1) is entered, and the input on the operation panel is It now has a different meaning than usual, and at the same time, it can no longer be copied.

Next, the contents of address 5000H (TBWEEK) are displayed on the display section to show the operator which day of the week is currently set as a regular holiday.If Sunday has already been set, 1 is displayed. Note that the reason why 0 is not designated as Sunday on the table is because it is indistinguishable from O when the memory is cleared. Therefore, in this case, 2 corresponds to Monday and 3 corresponds to Tuesday. TBWEEK can contain up to 7 days of the week (1-7
) can be set at the same time.For example, if you want to take Saturday and Sunday off, set 7 (Saturday off) and 1 (Sunday off) to TBWEEK.
All you have to do is set .

Next, if you want to change the set day of the week, for example, change Sunday to Tuesday, input "3 (Tuesday)" from the numeric keypad 50-1 when 1 (Sunday) is displayed. Then the display changes from 1 to 3, but 5 on the non-volatile memory 7
The contents of address 000H remain unchanged at this point. If the print key 22 is pressed here, the data at address 5000H will be rewritten. If you do not want to specify any more regular holidays, press the clear key to remove them from 5UBI. If you want to add a set date, use the numeric keypad 50-1 in the same way.
After inputting a number and checking the display section 51-2, the user presses the print key 52 to store the regular holiday on the non-volatile memory 7. If you want to cancel the specified date, press the numeric keypad 50.
When inputting -1, data other than 1 to 7, such as 0, may be input.

In this way, up to seven regular holidays can be specified in one week.

If you want to know which day of the week is currently designated, you can check the contents one by one by pressing only the print key 52 after entering mode I.

Next, a method for setting other holidays, that is, irregular holidays, will be explained. The table in memory for registering irregular holidays is shown in Figure 7.

The first address is temporarily set to address 5100H.

For example, if a storage area is secured so that one month's worth of holidays can be registered, for example, a maximum of 16 days, Sundays etc. are added to this, so this is sufficient for normal office use.

The setting order is roughly the same as the regular holiday registration described above. First, by pressing the mode key 50-3 and "2" on the numeric keypad 50-1, the normal copy mode is changed to the date setting mode (mode 2). Next, decide on the month in which you want to set the date, and then set or delete holidays. Of course, the date table set here is stored in the nonvolatile memory 7 and backed up by the battery 6. The actual holiday setting procedure will be explained according to the flowchart shown in FIG.

When 5UB2 is called from the main routine on the CPU, if the mode key 50-3 and "2" on the numeric keypad 50-1 are pressed down to 9, it becomes possible to set irregular holidays. First, enter the month you want to set as one of 01(1), 02(2) to 12. The input data is stored in memory
is stored at the address represented by NTH, and at the same time the first display section 5
Displayed as 0-1.

Next, the pointer TBPT for searching the date table
Stores the start address of the table for the month specified in H. For example, when September is specified, TBPTR contains 5100H.
5180H is set from +16 (=10H) x (9-1)=5180)1. After that, in the same way as the regular holiday setting process described above, select the dates you want to specify using the numeric keypad 5.
Enter 0-1 using the print key 52, and when finished press the clear key 50-2.

B. Setting the ON time Next, a method for setting the time at which the copying machine shifts from the "pass-leave mode" to the "on mode" at the set time will be explained.

Here, it is assumed that the real-time clock 8 is used and the alarm terminal 34 is set to output an alarm signal from 8:25 a.m. every day.

First, the alarm time can be set by writing time data to the alarm register 31 of the real-time clock 8 according to a predetermined procedure.1 For example, when the real-time clock 8 is used as a 24-hour clock, the alarm 10 time register is set to 0, and the alarm 1 "8" in the time register, "2" in the alarm 10 minute register, "5" in the alarm 1 minute register.
” and the alarm ENABLE! Then, an alarm signal is output from the alarm terminal 34 for one minute from 08:25 every day, that is, from 8:25 every morning. A method for setting this alarm time from the display/operation section shown in FIG. 5 will be explained with reference to the flowchart in FIG. 9.

When 5tlB3 is called from the main routine in CPIJ5, the mode key 50-3 and numeric keypad 50-1 "3"
” is pressed, the alarm time setting mode is activated.
First, the alarm register 31 of the real-time clock 8
, that is, the current set time is displayed on the display section 51-1.51.
-2.

Next, only the display on the first display section 51-1, that is, the time display, flashes, prompting the operator to reset the time.6 The operator inputs a new time using the numeric keypad 50-1, and then presses the print key 52. The scarcity and its time are displayed on the first display section 5.
1-1, and then written to the time digit of the alarm register 31 of the real-time clock 8.

Next, the setting of the alarm time is completed by blinking the display on the second display section 51-2 and repeating the same process for "minutes". can also be specified, but since it is not set here, the year, month, and day are left blank, and the alarm signal will be output at the same time every day.

C1 Power ON Control Next, we will explain how to turn the power of the copying machine into the ``power-on mode'' using this alarm signal.

Figure 10 shows CPU 5, real-time clock 8 and I1.
2 is a diagram illustrating the relationship between 0 votes 9 in more detail than FIG. 1. FIG.

Here, set the real-time clock 8 to output a 1/60Hz clock from the CLKOUT terminal 30 of the real-time clock 8. This can be done by setting a predetermined value to the clock register of the real-time clock 8. be. ), and then the CPU
Connect to the interrupt input terminal INT of 5.

The alarm terminal 34 of the real-time clock 8 is connected to the input port IPI of the I10 port 9, and the status of the input port is monitored by the CPU. Furthermore, the output port OPI of I10 port 9 is connected to the driver 60,
When rlJ is output from OPI, 5SR61 is turned on, thereby supplying AC 100V power 63 to load 62.

Here, the load 62 is various loads necessary for performing a copying operation, such as a fixing heater, a main heater, a display/operation section, and an exposure lamp.

Now, assume that the copying machine is in "sleeve mode" in which power is not supplied to these loads 62.

However, since power is supplied to the area around the CPU,
At M8:25, an alarm signal is sent from the alarm terminal 34 to the IPI. The CPU detects this and
The irregular holiday table and regular holiday table are referred to and compared with the calendar data of the real-time clock 8. If they do not match, "1" is output to the OPI and the load 62 of the copying machine is reduced.
, and put it into “on mode” where it can be copied.

This point will be explained in more detail.

Figure 11 shows that the copying machine is in “on mode” due to the alarm signal.
This is a flowchart for becoming one.

In other words, the CPU detects that the alarm signal is input to the IPI.
When s is detected, the data of the day of the week counter (see FIG. 2) of the real-time clock 8 is read out.

Next, "1" is added to the data and compared with the contents of a regular holiday table created in advance to check whether there is any matching data. If it is not, it is known that it is not the set day off, so the real-time clock date 8 or 6 is further read out and similarly compared sequentially with the contents of the irregular holiday table to see if there is matching data.

If not, it is determined that today is not a holiday and outputs "1" to the OPI of output port 9 to switch to "on mode".

In other words, the copier will automatically be able to copy.

Note that the CPU repeatedly executes a main routine consisting of a routine for detecting each key operation on the display/operation unit 1, a routine for inputting the status of each sensor of the copying machine, etc. at extremely short intervals (for example, 2G+5sac). This main routine calls each of the subroutines described above.

[Effect] According to the present invention, a microcomputer and a clock with a calendar are combined, and the set on-time arrives.

In addition, we made it possible to turn on the copier only if it was not a holiday when the holiday data was checked, so the copier would not be turned on on holidays, and the exact turn-on time could be set on non-holidays. settings can be made. especially,
At the start of work, the copying machine can be automatically set to be ready for use immediately without waiting for the start-up time (usually 3 to 5 minutes) for fixing, etc. of the copying machine. Therefore, the present invention can save labor, save energy, and improve work efficiency, and also has advantages in terms of safety.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a power control system for a copying machine according to the present invention, FIG. 2 is a block diagram of a real-time clock, and FIG.
4 is an explanatory diagram showing an example of a calendar; FIG. 5 is an explanatory diagram of a display/operation unit; and FIG. 6 is a flowchart for setting a holiday table. Fig. 7 is an explanatory diagram of the holiday registration memory table, Fig. 8 is a holiday setting flowchart, Fig. 9 is an alarm time setting flowchart, Fig. 10 is a block diagram of power supply control, and Fig. 11 is an explanatory diagram of the holiday registration memory table.
The figure is a power-on control flowchart. 1... Display/operation unit, 2... Input/output device, 3...
ROM, 4...RAM, 5...CPU, 6...
Battery, 7...Non-volatile memory, 8...
・Real-time clock, 9...Input/output port, 10
···driver. Agent Patent Attorney Crest 1) Makoto Figure 1 Figure 3 Figure 4 August September 6th Ward No. 51 BOH Near Map [-0

Claims (1)

[Claims] An input device for inputting power on time, power off time, and holiday data, a nonvolatile memory for storing the data input from this input device, a clock with a calendar for generating date and time data, and a power control controller for the copying machine. and an output device for checking the date and time data output from the calendar clock with the set on time and holiday data stored in the nonvolatile memory, and turn on the power at the set on time other than holidays. A power control method for a copying machine, characterized in that it is turned on.