JPH04331961A - Control device for copying machine - Google Patents

Abstract

PURPOSE:To improve working efficiency and to save electricity of the copying machine by providing a state where copying is possible and carrying out setting of starting and stopping state of the copying machine automatically as soon as a first specified time is detected. CONSTITUTION:A first warming up is provided to provide the state where the copying is possible when an electrical power source switch 2 is turned ON. A second warming up is provided to collate a clock 9 and RAM10 by CPU13 in the state where the before mentioned electrical power source switch 2 is in a state of being turned ON, and a thermal source of a thermal fixing roll is actuated before a set time by a specified time when a set day and a first set time are detected so that the state where copying can be carried out is provided.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a copying machine having a heat fixing roller, and more particularly to control of energization to a load within the main body.

0002

[Prior Art] In the case of a copying machine having a heat fixing roller, especially a copying machine with a medium to high speed copying speed, silicon is used as a material to ensure the fixing properties of the copy when it is fixed by the heat fixing roller and pressure roller. It is necessary to increase the thickness of the rubber, etc., or increase the diameter of the roller.

[0003] Then, it takes time to heat the heat fixing roller and the pressure roller to a predetermined temperature, resulting in problems such as having to wait several minutes to more than ten minutes to make a copy first thing in the morning. .

[0004] Therefore, conventionally, for example, Japanese Patent Laid-Open No. 61-184
When a predetermined first time as shown in Japanese Patent No. 580 is detected, control is started to enable copying by operating the fixing roller, heat source, etc., and when a predetermined second time is detected, A copying machine equipped with a weekly timer that sets all the loads such as the heat source to a rest state is disclosed.

However, according to this conventional example, since control is started when a predetermined first time is detected, a problem arises in that the copying machine cannot become ready for copying unless the copying machine warms up. There is. In order to eliminate this problem, the copier should be warmed up as quickly as possible.
Although it is disclosed that the warm-up time of the copying machine is set at a different time depending on each copying machine, and it is unknown to the user, it is not possible for the copier to be ready for copying at a predetermined time. It could have happened otherwise.

Furthermore, according to the above-mentioned conventional example, when a predetermined first time is detected, all of the heat sources etc. are loaded, so the electrical energy is consumed until someone starts using the copying machine. becomes wasted.

[0007] Particularly in the morning, when the temperature is low, there is a drawback that it requires more power than usual to maintain the fixing roller at a temperature that allows copying.

Furthermore, according to the above-mentioned conventional example, even when a predetermined first time is detected during a pause after the copying machine is powered on, control is started in the same way as when the copying machine is powered on. Immediate start-up is required, and problems such as power being suddenly turned on to the entire copying machine and noise being generated by driving the main body to spread heat throughout the heat fixing roller occur.

[0009] Moreover, the above-mentioned rapid start-up often causes the cold copying machine to suddenly warm up, causing fatigue due to heat shock of the parts.

[0010] According to the conventional example, when a predetermined second time is detected, all the loads such as the heat source are put into a rest state.
When copies are required after the second period due to overtime, etc.
A problem has arisen in that the copier cannot become ready for copying until it has warmed up.

[0011] In order to solve this problem, it is possible to set the second time to a time when there are no people at all, rather than the end of the work day, but after the end of work, the heat source etc. should be turned off to full capacity because it is rarely used. If this condition is maintained, electric energy will be wasted, which is not desirable from the viewpoint of energy conservation.

Conventionally, when a predetermined first time is detected, the state becomes ready for copying, and when a predetermined second time is detected,
Since only the ON/OFF control of the power switch is required to enter the dormant state, electrical energy is wasted during times when the copying machine is not used frequently, such as during lunch breaks.

[0013] Recently, an increasing number of companies are enforcing turning off lights during lunch breaks, and copying machines are no exception and people are considering turning off the power.

However, if you turn off the power, when you suddenly need to make a copy or at the end of your lunch break,
A problem occurs in that the device does not start up immediately even when the power is turned on again.

[0015]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and provides a control device for a copying machine that can perform copying operations immediately without wasting electrical energy or waiting time. The task is to do so.

[0016]

[Means for Solving the Problems] The present invention solves the above problems by first providing a heat fixing roller, a calendar clock, a RAM, a battery for backing up the clock and RAM, and a CPU for executing copy control. a control device for a copying machine comprising: a DC power supply unit connected to a power supply unit of the CPU; and a power switch connecting an input of the DC power supply unit to a commercial power supply, wherein copying is enabled when the power switch is turned on. During a first warm-up, the CPU checks the clock and the RAM while the power switch is on, and when the set day of the week and the set first time are detected, the copying mode is enabled. This is achieved by a copying machine control device characterized in that a second warm-up is provided for activating the heat source of the heat fixing roller a predetermined time before a set time.

[0017] The present invention solves the above problem by, secondly, providing a heat fixing roller, a calendar clock, a RAM, a battery for backing up the clock and RAM, a CPU for executing copy control, and a CPU for executing copy control. In a control device for a copying machine that includes a DC power supply connected to a power supply unit and a power switch that connects an input of the DC power supply to a commercial power supply, the CPU controls the clock while the power switch is on. When the set first time on the set day of the week is detected, control is started to activate the heat source of the heat fixing roller to preheat it, and the set second time is detected. This was achieved by a copying machine control device characterized in that when the time is detected, all the loads such as the heat source are set to a rest state.

The present invention solves the above problem as follows: thirdly, a heat fixing roller, a calendar clock, a RAM, a battery for backing up the clock and RAM, a CPU for executing copy control, and a CPU for controlling the CPU. In a control device for a copying machine that includes a DC power supply connected to a power supply unit and a power switch that connects an input of the DC power supply to a commercial power supply, the CPU controls the clock while the power switch is on. and RAM, a predetermined time before the set first time on the set day of the week, control is started to operate the heat source of the heat fixing roller, etc. to bring it into a preheating state, and
This is achieved by a control device for a copying machine, which is characterized in that it enables copying as soon as a set second time is detected, and sets all loads such as the heat source to a rest state when a second set time is detected. .

The present invention solves the above-mentioned problem as follows: fourthly, a heat fixing roller, a calendar clock, a RAM, a battery for backing up the clock and RAM, a CPU for executing copy control, and a CPU for controlling the CPU. In a control device for a copying machine that includes a DC power supply connected to a power supply unit and a power switch that connects an input of the DC power supply to a commercial power supply, the CPU controls the clock while the power switch is on. When the set first time on the set day of the week is detected, the heat source of the heat fixing roller is activated to control the heat fixing roller to the first fixing temperature, and the heat fixing roller is controlled to the first fixing temperature. When the second time is detected, the heat fixing roller is controlled to a second fixing temperature lower than the first fixing temperature so as to be in a standby state, other loads are put in a rest state, and the set third time is reached. This was achieved by a control device for a copying machine characterized in that, when detected, all loads such as the heat source are set to a rest state.

The present invention solves the above problem, fifthly, by providing a heat fixing roller, a calendar clock, a RAM, a battery for backing up the clock and RAM, a CPU for executing copy control, and an image CPU. A control device for a copying machine comprising a DC power supply connected to a power supply unit, and a power switch connecting an input of the DC power supply to an applied power supply,
While the power switch is on, the CPU checks the clock and the RAM, and when the set first time on the set day of the week is detected, activates the heat source of the heat fixing roller, etc. controlling the heat fixing roller to a first fixing temperature, and starting to control the heat fixing roller to a second fixing temperature lower than the first fixing temperature so as to enter a standby state when the second time is detected; The other loads are placed in a dormant state, and when a set third time is detected, control is started at the first fixing temperature to enable copying again, and when a predetermined fourth time is detected, the heat source etc. This was achieved using a copying machine control device that is characterized by setting all loads to a rest state.

[0021]

[Function] According to the present invention, firstly, when the power switch is turned on, the first warm-up warms up so that copying is possible at the same time as the power switch is turned on, and when the set time comes while the power switch is on. By switching between the first warm-up and the second warm-up to enable copying, the waiting time is reduced, and when not copying, the load of a heat source such as a heat fixing roller is put into a rest state, thereby eliminating waste of electrical energy.

According to the present invention, secondly, when the first time is detected while the power switch is on, the control is performed in a preheating mode at a temperature lower than the copyable state, and the second time is set to the copyable state for the first time during use. When detected, all loads, including heat sources, are put into a dormant state. This allows the copying machine to start up quickly during use, increasing work efficiency and saving power at the same time.

According to the present invention, thirdly, when the first time is set, the heat source etc. is activated in advance for a predetermined time to warm up, and when the predetermined time comes, copying is immediately possible, thereby reducing the waiting time. It can be eliminated.

According to the present invention, fourthly, the first fixing temperature is controlled to a copyable first fixing temperature by detecting the first time, and the second fixing temperature is controlled to be lower than the first fixing temperature by detecting the second time. By placing the system on standby and placing all the loads in a dormant state by detecting a third time, for example, at the second time, which is the normal end time, the system is placed on standby, and at the third time, which is the time when all the people are gone. All loads are placed in a dormant state, and even if copies are needed during overtime, copies can be made with less waiting time, improving business efficiency and saving power.

Furthermore, when the third time is detected, the first fixing temperature control is switched again for copying, and when the fourth time is detected, all the loads are put into a rest state, and the control is automatically switched on when the frequency of use is low, such as during lunch break. It is possible to switch the fixing temperature control and put other loads in a dormant state, and automatically enable copying after the lunch break. This makes power saving more effective.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be explained based on the embodiments shown in the drawings.

In FIG. 1, 1 is a commercial power source, and 2 is a switch for supplying and cutting off power to the copying machine.

The DC power supply 3 is a power supply for the control circuits such as the CPU 13 and outputs Vcc (+5V). battery 8 is clock 9
It is also used for backup of the C-MOS RAM 10 and operates even when the power is turned off. CPU 13 has clock 9, RAM 1
0, 11 (RAM1 RAM2), ROM12, I/
It is connected to O ports 14, 16 and other elements to control well-known copying operations. The thermistor 4 is arranged near the fixing roller to ON/OFF control a heater 5 that heats the fixing roller, and is connected to the A/D input of the CPU 13. The I/O port 14 includes:
AC load 7 and DC load 15 of motor etc. (not detailed)
is connected.

A key switch 18 of the operation section of the copying machine and a display 17 are connected to one I/O port 16.
The copy mode is set and displayed. Display 17
The two-digit LED on the left side displays the number of copies set, and the two-digit LED on the right side displays the number of copies. Also 6
is a relay for turning the heater 5 on and off.

FIG. 2 is a schematic diagram of the operating section 19.

0 to 9 on the numeric keypad 20 correspond to S01 to S09 on the key switch 18, and are used for setting the number of copies, etc. C/S corresponds to S11 and is used to clear the number of copies, interrupt copying, etc. The print key 23 corresponds to S12 and is a copy start key. S91 is an enter key 21, and S92 is a program key 22, which are used when setting modes other than copy operations.

As mentioned above, the display 17 in FIG. 1 has four digits in seven segments and a colon mark between them, and is normally used to display the number of sheets set and the number of copies, and in a predetermined mode, it is used to display the clock. be exposed.

[0033] The general functions will be explained.

In order to automatically turn on/off the copying machine at a predetermined time and day of the week assuming that the switch is turned on, the operation days of the copying machine are stored in the memory RAM 10, for example, from Monday to Friday, and each morning at 9 p.m. :00~6:00 every evening
Set the day of the week and time to automatically set up and set down the copying machine.

[0035] Also, from the set-down state, simple operation (
It is possible to return to the setup state by turning the main switch OFF/ON, and if it is not used after that, it automatically returns to the set-down state. Users can set the operating days and hours as they wish.

In the flowchart shown in FIG. 3, during normal copying, initialization is first executed after power is turned on.

This indicates the initial state of the copying machine, for example, setting the optical system to a predetermined starting position, returning the lens position of the variable magnification system to the predetermined position, or displaying the number of sheets set to 1 on the display. It is to set it to a state such as.

Input reading is then carried out by reading key input signals from the operation unit, such as the number of copies to be set, or by reading the temperature of the fixing heater 5 using the resistance value of the thermistor to check whether it has reached a predetermined temperature. After checking, it is determined whether copying is possible, and if it is not, turn on the copy not allowed display and wait until copying becomes possible.

[0039] When copying becomes possible, a message to that effect is displayed, and a check is made to see if it is in sleep mode. The rest mode will be described later. Determine whether it is in hibernation mode and press print switch 2.
Wait until 3 is turned ON.

When the print switch 23 is turned on, a predetermined copy routine process (not described in detail) is executed, and when it is completed, the process waits for the print switch 23 to be turned on again.

Next, the subroutine "time check" will be explained. In FIG. 4, first the program key 22 is pressed to O.
Check if it was N. When it is turned on, one of program numbers 1, 2, 3, and 4 is turned on using the numeric keypad 20, and the program number is turned on. One of 1, 2, 3, and 4 is selected.

Program No. 1 is a routine for checking and setting non-operating days of the week. The subroutine CK1 shown in FIG. 5 calls out data on the day of the week in the memory RAM1 set in advance.

The day of the week data represents holiday data and is displayed on the operation section and copy counter section using a BCD code of 0 to 6. In the embodiment, 0 Sunday 1 Monday 2 Tuesday 3 Wednesday 4 Thursday 5 Friday 6 Saturday is defined.

For example, if Sunday is a holiday, 00 is displayed on the set number display and the copy number display is turned off. If Saturday is also a holiday, 06 is similarly displayed by CK2 of the subroutine shown in FIG.

When you want to rewrite Sunday's data, enter the above code using the numeric keypad 20 and press O of the enter key 21.
It can be changed by N.

Subroutines CK3 and CK4 shown in FIGS. 7 and 8
is a routine that checks and sets the time to enter sleep mode and the time to release from sleep mode. The displayed time is ××:××, and is displayed by the set number display, the copy number display, and a colon mark, and is displayed in 1-minute increments.
Displays up to 4 hours.

For example, if the time to enter the sleep mode is 6:30 p.m., 18:30 is displayed. Data can be changed in the same way as CK1 and CK2, and in this case, after keying in four times using the numeric keypad 20, the data can be changed by turning on the enter key 21 in the same way. The same applies to checking and resetting the pause mode release time.

As described above, in the program mode, it is possible to check and reset the day of the week as a holiday, and to check and reset the time for entering and canceling the pause mode. To exit the program mode, turn on the program key 22 again.

When not in the program mode, the clock information (day of the week, hours, minutes) is called up from the clock 9 and temporarily stored in the RAM.
Store in 11.

Next, the holiday day data set in the RAM 10 is compared with the clock information, and if they match, RET (return) is performed.

[0051] If they do not match, check whether the mode is in sleep mode. Data indicating whether the computer is in hibernation mode is stored in the RAM 10 so that it is retained even if the power (Vcc) is cut off.

If it is in the hibernation mode, it is checked to see if it has reached (hibernation release time - warm-up time), and if it is, the hibernation mode is released, and if not, it is directly RET.

If it is not in the pause mode, it is checked whether the pause mode time has passed, and if so, the pause mode is set. Otherwise, just RET. (The time is not checked while copying, but is checked when copying is complete, and when the set time has passed, the machine enters hibernation mode to prevent it from entering hibernation mode during copying.) Printing when not in hibernation mode The explanation will be given by returning to the step of waiting for ON.

When the pause mode time is reached as explained above in the "time check" subroutine while waiting for print ON, the heater 5, AC
Load 7 OFF, DC load 15 OFF, display 17 O
Enter the FF routine. This routine is a routine that cuts off the entire load on the copying machine, and only the control system surrounding the CPU consumes power at this time. After this routine processing, it may be possible to display whether or not the computer has entered the sleep mode.

Thereafter, the routine for waiting for the halt mode to be released continues. When the hibernation mode is released, the process jumps to A, executes initialization, etc. in the same way as when the main switch 12 is turned on, and waits until copying becomes possible.

The flowchart of the above explanation can be summarized as follows:
For example, if Saturday and Sunday are holidays, at 6:30 p.m. on Friday night, the entire load will be automatically cut off, and the state will continue the following Saturday and Sunday, and on Monday, the power will be turned on again at 7:55 a.m. It becomes possible to copy at 8:00 (when the warm-up time is set to 5 minutes). After that, from Monday night until Friday morning, 1
OFF at 8:30 and ON at 7:55 are repeated.

Note that, as mentioned above, holidays and times can be set arbitrarily, so the above mode can be changed arbitrarily.

[0058] Next, a case will be described in which the copy mode is enabled after initialization and is then in the hibernation mode.

This is a routine when you want to make a copy when the computer is in the sleep mode, for example on a holiday or late at night on a weekday.

When in the sleep mode, turn off the main switch once and then turn it on again. This allows CPU1
The power supply (Vcc) 3 of the main switch 2 is turned off once, and Vcc is turned on again when the main switch 2 is turned on, so that the CPU 13 is once initialized and executes the program from "Start".

[0061] When copying becomes possible after initialization, a check is made to see if it is in the sleep mode. 1 when in hibernation mode
Start the 0 minute timer. (You may also be able to select several types of 10-minute timers).

Next, after processing the input reading routine, check the 10 minute timer. If the time has not expired, it is checked whether printing is ON, and if it is ON, the copy routine is executed. After restarting the timer for 10 minutes after the copy routine ends, return to the input reading routine again.
Enters the print ON wait routine. After that, if the print is not turned on, the 10-minute timer continues to be incremented, and when the 10-minute timer times out, the above-mentioned time check and full load OFF routines are processed,
Check the hibernation mode again, and since it is in hibernation mode, continue the routine until the hibernation mode is released.

Since the sleep mode flag is stored in the RAM 10, even if the main switch 2 is turned off, the RAM 10 is backed up by the battery 8, so the data is retained.

[0064] Although this example was explained in units of one week,
If you use a clock with a calendar, you can easily set the second Saturday of the bank as a holiday, or set holidays such as summer vacation or winter vacation according to the company or school calendar. ) Also, when you want to copy during hibernation mode, turn main switch 2 OFF/ON.
However, a separate key may be provided on the operation unit to temporarily interrupt the sleep mode.

[0065] According to the above, the first time when the calendar clock and all the loads are automatically started (for example, the morning start time minus the warm-up time) and the second time when all the loads are put into a rest state. The system is automatically set to a hibernation state by a control device that includes a RAM that stores information (for example, end time) and a CPU that controls these.

In the above example, the fusing preheating control of the copying machine is automatically started a predetermined amount of time earlier than the preset day of the week and time, for example, by the preset warm-up time, assuming that the switch is on. conduct. It is also possible to bring the thermal fixing roller into a sufficiently warmed state at a preset time so that it can be made ready for copying immediately.

Furthermore, the load including the fixing temperature control of the copying machine is turned off on a separately set day and time.

[0068] Furthermore, the user can arbitrarily set the day of the week and time.

The operating section 19 is modified from the example shown in FIG. 2 to have a preheating key 24 as shown in FIG. S93 in FIG. 2 corresponds to the preheating key 24, and is used when setting modes other than copying operations. The key arrangement can also be modified as shown in FIG. Furthermore, the C/S key can be made into a larger key by including an adjacent blank space to make the key larger than the combined size of the two keys.

The flowchart shown in FIG. 11 shows the flow of operations in the preheating mode for preheating the fixing device and the pause mode. FIG. 11 is a flowchart corresponding to FIG. 3, and only the differences will be explained below.

[0071] In Fig. 3, when copying is possible, a message to that effect is displayed;
In contrast to checking whether it is in the rest mode, in FIG. 11, it is checked whether it is in the preheating mode or not, and it is also checked whether it is in the rest mode.

If the mode is not the preheating mode and the mode is not the rest mode, the input is read again, a time check is executed, and then it is determined whether the mode is the preheating mode or the rest mode again and the print switch 23 is turned on.

For the subroutine "time check", a modification example shown in FIG. 12 can be used for the example shown in FIG. That is, when not in the program mode, clock information is read from the clock 9 and temporarily stored in the RAM. R
It compares the holiday day data set in AM10 with the clock information, and if they match, it performs RET, and if they do not match, it checks whether it is in the sleep mode.

If it is in the hibernation mode, it is checked whether the hibernation release time has come, and if it is, the hibernation mode is canceled and the preheating mode is set, and if it is not, it is directly returned.

[0075] If it is not the rest mode, it is checked whether the rest mode time has passed, and if it has passed, the rest mode is set and the preheating mode is reset, and if it has not passed, it is directly returned.

In FIG. 11, when the printer is not in the above-mentioned rest mode, when it is in the state of waiting for print ON and the time reaches the rest mode time in the time check subroutine, after checking the time again, it is checked whether the preheating mode or the preheating key is ON.
When in preheating mode, repeat from initialization with the preheating key ON; when not ON, perform preheating temperature control, turn off full load, DC load, and display, and repeat from "time check".

When not in preheating mode, check whether the value is the value obtained by subtracting the warm-up time from the pause mode release period. If it is ON, turn off the entire load, and if YES, start the warm-up timer and start the fixing warm-up time. The warm-up control is repeated until the warm-up timer times out.

Referring to FIG. 11, a case will be described in which the preheating mode or hibernation mode is entered when copying becomes possible after initialization. For example, there is a warm-up control when the power is turned on, and a routine that warms up a predetermined time before the set time so that when the first set time is detected, the machine becomes ready for copying.

10 when in preheating mode or hibernation mode
Start minute timer. Next, after processing the input reading routine, check the 10-minute timer, and if the time has not expired, wait for the print to turn on. If the print is turned on, enter the copy routine, reset (clear) the 10-minute timer, start, and turn the print on. If not, the 10 minute timer is incremented by 1. If the time is up, check the time and repeat the above explanation.

The fixing warm-up control in FIG. 11 is performed according to a second warm-up curve shown by curve B in FIG. 13. In other words, the heat source is controlled so that it takes a long time to reach the target temperature, and a sufficient amount of time is allowed thereafter so that the heat is sufficiently distributed to the pressure roller and the like.

Preheating temperature control is performed to automatically control the fusing temperature of the copying machine to a temperature lower than the normal control temperature on a predetermined day and time, assuming that the switch is turned on, and the user can use it. When the preheat key is O
In this example, it is possible to return to the operating state by a simple operation such as turning OFF and ON of switch 2, and then if the copying machine is not used, the mode returns to the above mode, and the entire load of the copying machine is turned off on the above day and time. 14 is used instead of FIG. 3, FIG. 12 is used instead of FIG. 4, and the flowchart of FIG. 15 is used instead of FIG. 8.

In FIG. 14, in contrast to the step of checking whether the time is the hibernation mode release time minus the warm-up time when not in the preheating mode in FIG. It can be changed to turn off the entire load when in sleep mode,
If it is not in sleep mode, jump to A.

[0083] With this flow, for example, the starting time is 9:00.
0. If the end time is 17:00, set the time for canceling the pause mode, that is, setting the preheating mode to 9:00,
The pause mode time is set to 17:00, which is suitable for users who are not likely to make copies as soon as the start time arrives and only make about a few dozen copies a day. From the start time to the end time, only the temperature control section of the copier is operated, and the machine is set to preheat mode, which controls the temperature at a lower temperature than during normal standby, which reduces power consumption and the amount of silicone oil evaporated from the fixing roller. can.

The "time check" routine in FIG. 8 takes the warm-up time into consideration, whereas in FIG. 15, the key input value is stored as is in the RAM2 register, and RAM1 is rewritten only during the pause mode release time. The difference is that the warm-up time is not taken into consideration.

[0085] The first time when all loads are automatically started, for example, the start time minus the warm-up time, and the preheating mode, that is, only the temperature control of the heat fixing roller is performed, and other loads are put into a rest state. a second time, such as the end of the day, and a third time when all loads are put to rest;
For example, it is possible to control the RAM to store the time when there will be no one left in the office. In this case, from the time when the copying machine is turned off until a predetermined time, all loads other than the temperature control of the fixing roller and the heater are turned off and the temperature is controlled at a temperature lower than the normal standby temperature in the preheating state. If the copying machine is not used, temperature control of the fixing roller is also stopped.

[0086] From the preheating mode and rest mode, it is possible to return to the operating state by simply turning on the preheating key or turning the main switch OFF-ON, and if the copying machine is not used after that, it returns to the above mode. be.

The flowchart uses FIG. 14, FIG. 17 instead of FIG. 12, FIGS. 5 to 7, FIG. 15 instead of FIG. 8, and newly FIG. 16. In contrast to FIG. 12, FIG. 17 shows program No. 5 is added, and after checking whether the clock information matches the set day of the week and before checking whether it is in hibernation mode, it is checked whether it is in preheating mode or not, and if NO, it is set. The difference is that it checks whether the preheating mode time has been exceeded, and if it does, it sets the preheating mode and checks whether it is in rest mode.

In the time check subroutine shown in FIG. 16, a subroutine related to the preheating mode set time is added.

Furthermore, when the copying machine is automatically turned on and off at predetermined days and times, the fixing temperature control can be automatically switched between the normal control temperature and the preheating control temperature lower than the normal control temperature. . When the copying machine is in the sleep mode/preheating mode, it can be easily returned to the operating state by turning on the switch or turning on the preheating key, and if the copying machine is not used thereafter, it returns to the above mode.

As a flowchart, FIG. 18 is used instead of FIGS. 14 and 17, FIG. 19 is used instead of FIG. 16, and FIG. 20 is newly used.

FIG. 17 shows program No. 1 for the flow shown in FIG. 6 is added, and it checks whether it is in preheating mode or not, and when it is YES, it is checked whether it is in hibernation mode, whereas when it is YES, it is checked whether it is the release time or not. The difference is that when the answer is NO, it is checked whether it is in the rest mode, and when it is YES, the preheating mode is canceled and it is checked whether it is in the rest mode.

[0092]

According to the present invention, firstly, as soon as a predetermined first time is detected, the copying machine is made ready for copying, and the copying machine is automatically started and set to the hibernation state. It is possible to improve business efficiency and save power for copying machines.

According to the present invention, secondly, when a predetermined first time is detected, the preheating mode, that is, the surface temperature of the fixing roller is controlled to a value lower than the state in which copying is possible, and copying is performed for the first time when the copying machine is used. By making this possible, it is possible to start up the copying machine quickly, thereby improving work efficiency and saving power of the copying machine.

According to the present invention, thirdly, by separating the warm-up when the copy machine is turned on and the warm-up when the timer starts up, it is possible to avoid placing an undue burden on the copy machine without reducing work efficiency. You can avoid it.

According to the present invention, fourthly, when a predetermined second time is detected, the preheating mode, that is, the surface temperature of the fixing roller is controlled to a value lower than the state in which copying is possible, and all other loads are put into a rest state. and when a predetermined third time is detected, all loads including the heat source are put into a hibernation state, thereby making it possible to set the time to start the preheating mode of the copying machine, thereby improving work efficiency and improving the efficiency of the copying machine. Power saving can be achieved.

According to the present invention, fifthly, when a predetermined first time is detected, control is started to enable copying, and when a predetermined second time is detected, the fixing roller surface temperature can be copied. When a predetermined third time is detected, control is started to enable copying again, and a predetermined fourth time is detected. By placing all loads in a dormant state, the weekly timer can also be set to preheat mode for the copying machine, thereby improving work efficiency and saving power for the copying machine.

[Brief explanation of drawings]

FIG. 1 is a control circuit diagram.

FIG. 2 is a schematic diagram of an operation panel.

FIG. 3 is a start flowchart.

FIG. 4 is a time check flowchart.

[Fig. 5] Program No. 1 check flowchart.

[Fig. 6] Program No. This is a 2-check flowchart.

[Fig. 7] Program No. This is a 3-check flowchart.

[Fig. 8] Program No. This is a 4-check flowchart.

FIG. 9 is a schematic diagram of another embodiment of the operating panel.

FIG. 10 is a schematic diagram of a further embodiment of the operating plate.

FIG. 11 is a different embodiment of a start flowchart.

FIG. 12 is another embodiment of a time check flowchart.

FIG. 13 is a diagram showing the relationship between warm-up times.

FIG. 14 is yet another embodiment of a start flowchart.

FIG. 15: Program No. This is another example of a 4-check flowchart.

FIG. 16: Program No. This is a 5-check flowchart.

FIG. 17 is another example of a time check flowchart.

FIG. 18 is yet another embodiment of a time check flowchart.

FIG. 19: Program No. This is another example of a 5-check flowchart.

FIG. 20: Program No. This is another example of a 6-check flowchart.

[Explanation of symbols]

1 Commercial power supply 2 Switch 3 DC power supply 4 Thermistor 5 Heater 6 Relay 7 AC load 9 Clock 10 RAM 11 RAM 12 ROM 13 CPU 14 I/O port 15 DC load 16 I/O port 17 Display 18 Key switch 19 Operation section 20 Numeric keypad 21 Enter key 22 Program key 23 Print key 24 Preheat key

Claims (5)

[Claims] [Claim 1] A heat fixing roller, a calendar clock,
A RAM, a battery that backs up the clock and RAM, a CPU that executes copy control, a DC power supply unit that connects to the power supply section of the CPU, and a power switch that connects the input of the DC power supply unit to a commercial power supply. In the control device for a copying machine, a first warm-up is performed to enable copying when the power switch is turned on;
A second warmer operates the heat source of the heat fixing roller a predetermined time before the set time so as to check the AM and set the copying state when the set day of the week and the set first time are detected. A control device for a copying machine characterized by providing a moo-up. [Claim 2] A heat fixing roller, a calendar clock,
A RAM, a battery that backs up the clock and RAM, a CPU that executes copy control, a DC power supply unit that connects to the power supply section of the CPU, and a power switch that connects the input of the DC power supply unit to a commercial power supply. In the copying machine control device equipped with the above, when the CPU checks the clock and the RAM while the power switch is on, and a set first time on a set day of the week is detected,
Control is started to operate the heat source, etc. of the heat fixing roller to bring it into a preheating state, and when a set second time is detected, all loads of the heat source, etc. are set to a rest state. Copy machine control device. [Claim 3] A heat fixing roller, a calendar clock,
A RAM, a battery that backs up the clock and RAM, a CPU that executes copy control, a DC power supply unit that connects to the power supply section of the CPU, and a power switch that connects the input of the DC power supply unit to a commercial power supply. In a control device for a copying machine equipped with the above-mentioned copying machine, the CPU verifies the clock and the RAM while the power switch is on, and the temperature is increased from a predetermined time before a set first time on a set day of the week. Control is started to activate the heat source etc. of the fixing roller to preheat it, and as soon as the first time is detected, copying is enabled, and when the set second time is detected, all the heat sources etc. are activated. A control device for a copying machine, characterized in that the load of the copying machine is set to a rest state. [Claim 4] A heat fixing roller, a calendar clock,
A RAM, a battery that backs up the clock and RAM, a CPU that executes copy control, a DC power supply unit that connects to the power supply section of the CPU, and a power switch that connects the input of the DC power supply unit to a commercial power supply. In the copying machine control device equipped with the above, when the CPU checks the clock and the RAM while the power switch is on, and a set first time on a set day of the week is detected,
The heat source or the like of the heat fixing roller is operated to control the heat fixing roller to the first fixing temperature, and when the second time is detected, the heat fixing roller is set to the first fixing temperature so as to be in a standby state. A copying machine characterized in that control is started to a lower second fixing temperature, other loads are set to a rest state, and when a set third time is detected, all loads such as the heat source are set to a rest state. control device. [Claim 5] A heat fixing roller, a calendar clock,
RAM, a battery that backs up the clock and RAM, a CPU that executes copy control, and an image CPU
In a control device for a copying machine, the copying machine is equipped with a DC power supply unit connected to a power supply section of the copying machine, and a power switch that connects an input of the DC power supply unit to an applied power supply unit. Check the clock and RAM,
When a set first time on a set day of the week is detected, a heat source or the like of the heat fixing roller is activated to control the heat fixing roller to a first fixing temperature, and when the second time is detected. then the heat fixing roller is moved to the first position so as to be in a standby state.
Control is started at the second fixing temperature lower than the fixing temperature, other loads are put in a dormant state, and when the set third time is detected, control is started at the first fixing temperature to enable copying again, and a predetermined time is set. A control device for a copying machine, characterized in that when a fourth time is detected, all loads such as the heat source are set to a rest state.