JPH0421873B2 - - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to a method of arranging a plurality of intermittent processing means to perform continuous processing on a moving object.

Background of the Technology Electrophotographic printers have a process in which toner is attached to a latent image formed on a photosensitive drum (phenomenon), the toner is transferred to a running recording paper, and then the toner is fixed on the recording paper. A fixing device for this toner is constructed using a flash lamp. This is because the lamp can instantaneously generate a large amount of light necessary for thermal fixing of the toner. When the recording paper passes continuously, this fixing device must repeatedly emit light at a period corresponding to the traveling speed of the recording paper.

However, as is well known, a flash lamp instantly discharges the charge stored in a capacitor and temporarily emits a large amount of light, so the capacitor must be charged again before the next flash lamp is issued. There is. Therefore, if the fuser is equipped with only a single flash lamp or a group of flash lamps that are activated at the same time, the capacitor must be charged at high speed, and a large-capacity power source is required. Therefore, by arranging multiple flash lamps along the running direction of the recording paper and making the startup timing of each lamp different, the capacity of the charging power source can be reduced without impairing the continuous fixing and processing speed for the recording paper. A distributed sequential lighting type continuous processing method (see FIG. 4) has been proposed. However, in the method shown in Figure 4, the lamps are activated in order from upstream to downstream in the recording paper travel direction (when the lower limit is reached, it returns to the upper limit), and each lamp is arranged so that its irradiation area is closely spaced. There is a drawback that the mounting area cannot be arranged (there is only one space left) and the installation area increases.

Prior Art and Problems Figure 1 shows a closely spaced sequential lighting continuous processing system (see Japanese Patent Application No. 56-66498) proposed to eliminate the above-mentioned drawbacks, in which three flash lamps F ₁ ~ _F3 are arranged so that the irradiation areas _P1 ~ _P3 are in close contact with each other. In the figure, each lamp including the reflector is placed in close contact with each other, but the important thing is that the irradiation area of each lamp on the recording paper 1 is placed close to each other without overlapping or creating a gap (each lamp is lit at the same time, the recording paper (with fixed conditions),
If the projected light is to be diffused, it will be separated according to the distance from the recording paper 1. When the respective lamps are issued in the order of F ₁ , F ₂ , F ₃ , F 1 is placed in the _center , F ₂ is placed on the upstream side in the running direction X of the recording paper 1, and F ₃ is placed on the downstream side. will be established. In this way, the recording paper 1 will first have the _P1 area, then the time point _t2 when _P1 has reached the bottom of _F3 .
Then, P ₂ area is irradiated by one area after P ₁ area, and then P ₁ goes outside of F ₃ and at time t ₃ when P ₂ comes under F ₁ , the P ₃ area is irradiated. It is irradiated to fill the gap between the P ₁ and P ₂ areas, and in this way the three areas P ₁ , P ₃ ,
P ₂ consecutive irradiations and thus a fixed area is obtained. After the next time t ₄ , _{steps 1} to t ₃ are repeated, and the recording paper 1
are irradiated and fixed continuously (without overlap or gaps). With this continuous processing method, (1)
The area exposed during the time that recording paper 1 passes through lamps F ₂ , F ₁ , and F ₃ is the same as if these lamps were turned on at the same time, so there is no need to reduce the speed of recording paper 1. (Same as when 3 lamps are lit at the same time) (2) Since the capacitor of each lamp is charged at a different timing than the capacitor of other lamps, the charging current is dispersed over time, and the operating cycle is the same as the simultaneous lighting type. (3) Since the irradiation areas P ₁ to _{P 3} of the lamps F ₁ to _{F 3} can be arranged closely, the area required for handling the lamps is small.

By the way, the light intensity distribution within the irradiation areas P ₁ to _{P 3} of each lamp is not uniform, and is generally large at the center of each area and becomes smaller as it approaches the periphery. In the above-mentioned continuous processing method, the amount of light at the connection part b of each area is insufficient compared to other parts, and the fixing characteristics deteriorate. In addition, if you use the multiple trigger method (a method in which the trigger is triggered multiple times as a protection against the case where the light does not turn on with a single trigger) in the continuous processing method described above, when the light is turned on by the second, third, etc. trigger, the scheduled A problem arises in that the distance traveled by the recording paper from the first time to successful lighting remains unexposed and unfixed.

The above-mentioned problem can be solved by partially overlapping the irradiation areas, but the previously proposed methods did not take this point into consideration. Furthermore, if this is achieved using the conventional continuous processing method, the aforementioned problems of large charging power supply capacity or large installation area remain. In other words, if the first irradiation area A ₁ and the second irradiation area A ₂ are partially overlapped in the simultaneous lighting continuous processing method as shown in Figure 2, the insufficient light amount in the overlapping area Δa will be compensated for. But the lamps F ₃ and F ₁ ,
Underexposure occurs in the irradiation area between F ₁ and F ₂ , and in a fixing device using three flash lamps F ₁ to _{F 3} , normally, as shown in FIG. Since the configuration is such that the capacitors 3 to 3'' are charged through the capacitors 3 to 3'' (which have a rectifying function), in the simultaneous lighting type where charging of the three capacitors 3 to 3'' is started at the same time, the AC power source 5 has a large capacity. required.

On the other hand, even in the distributed sequential lighting type continuous processing system as shown in FIG. 4, it is possible to partially overlap each processing area a ₁ , a ₂ . . . . This is achieved by shortening the inter-lamp distance l to a-Δa (a is the length of one irradiation area). This inter-lamp distance was originally set to l=a. The reason for this is as follows.

In other words, if the traveling speed v of the recording paper 1 is constant, whether it is a simultaneous lighting type or a sequential lighting type, the amount of light A = vT = 3a is exposed within a certain period of time (one cycle) T, and in preparation for the next exposure. It is necessary to recharge the capacitors 3 to 3''. Therefore, as mentioned above, in the simultaneous lighting type, a large-capacity AC power source is required to charge the capacitors 3 to 3'' at the same time. On the other hand, in the sequential lighting type, the charging timing of capacitors 3 to 3'' is staggered to disperse the charging current, and in order to reduce the capacity of the AC power supply, the lighting timing of lamps F ₁ to F ₃ is staggered, and the irradiation area is For this purpose, a space l is provided between the lamps, and when the tip of the irradiation area a ₁ by the upstream lamp F ₁ reaches the bottom of the lamp F ₂ , the lamp F ₂ is turned on and the irradiation area a ₂ is
In the same way, turn on F ₃ and join the irradiation area A ₃ in front of _{A 2 ,} thus making the 3 irradiation areas continuous, and repeating the same operation to create the next 3 irradiation areas. The tip of the irradiation area is in contact with the rear ends of the previous three irradiation areas. If the lighting timing of the lamps F ₁ to _{F 3} is given by dividing the above-mentioned fixed time T into three, then l=a and each irradiation area a ₁ to
a ₃ , a ₄ to _{a 6} . . . are continuous within the three regions and between the three regions. In this case, if l>a is set, a ₁ to a ₃ etc. become discontinuous, and if l<a is set, a ₁ to a ₃ etc. partially overlap. Figure 4 uses the latter,
It is set as l=a-Δa (<a) with Δa as the overlapping range. However, since this method essentially requires a lamp interval l, the lamp installation area cannot be reduced.

OBJECTS OF THE INVENTION The present invention provides a closely arranged sequential processing type continuous processing method that prevents uneven processing from occurring at the joint portion of continuous processing by a plurality of intermittent processing means.

Structure of the Invention The present invention is characterized in that objects to be processed are arranged continuously along the direction of movement of objects that move at a constant speed, and that each processing area has a length in the direction of movement, and that the length is a. The Δa portions at both ends of ,
An odd number of intermittent processing means are provided for performing intermittent processing in which the amount of processing tends to be insufficient compared to other parts, and among the intermittent processing means, the intermittent processing is arranged first at the center in the direction of movement of the object to be processed. Then, the n intermittent processing means disposed on the front side in the traveling direction of the object to be processed are sequentially operated from the intermittent processing means on the front side of the intermittent processing means disposed in the center.
The intermittent processing means are operated to form striped processing areas at intervals of −2·Δa, and the n intermittent processing means arranged at the back side in the traveling direction of the object to be processed are Starting from the intermittent processing means on the opposite side of the processing means, the gaps between the striped processing areas formed by the intermittent processing means disposed on the front side in the direction of movement of the object to be processed are filled, and the striped The object to be processed is operated to form an overlapping processing area Δa between the processing area of the object and the object to be processed while it is moving, and the processing object moves at a constant speed. They are arranged continuously along the traveling direction of the object to be processed, and the length of each processing area in the traveling direction is a, and the Δa portions at both ends of the length a are different from the other portions. It is equipped with an odd number of intermittent processing means for performing intermittent processing in which the processing amount tends to be insufficient, and among the intermittent processing means, n intermittent processing means are first arranged on the front side in the direction of movement of the object to be processed. The processing means is operated in order from the intermittent processing means disposed on the back side in the direction of movement of the object to be processed so as to form striped processing areas at intervals of a-2·Δa, and then the object to be processed is n intermittent processing means arranged on the back side in the direction of movement of the object to be processed are sequentially arranged starting from the intermittent processing means arranged on the back side in the direction of movement of the object to be processed, and the intermittent processing means arranged on the front side in the direction of movement of the object to be processed In addition to filling the intervals between the striped processing regions formed by the processing means, an overlapping processing region Δa is created between the striped processing regions.
further, an intermittent processing means disposed at the center in the direction of movement of the object to be processed;
The object to be processed is operated so as to form an overlapping processing area Δa between the processing area of the nearest intermittent processing means of the intermittent processing means disposed on the front side in the direction of movement of the object to be processed. The object to be processed can be processed continuously, and the object to be processed is arranged along the direction of movement of the object to be processed, which advances at a constant speed, and the length of each processing area in the direction of movement is is a, and each of Δa portions at both ends of the length a is provided with an even number of intermittent processing means for performing intermittent processing in which the throughput tends to be insufficient compared to other portions, and the even number of intermittent processing means is provided. The processing means is divided into two groups, respectively, as a first related processing means group and a second intermittent processing means group, and the first intermittent processing means group and the second intermittent processing means group correspond to processing area a. A first intermittent processing means group is arranged continuously with a gap between the first intermittent processing means and the first intermittent processing means group is disposed on the front side in the direction of movement of the object to be processed, and the first intermittent processing means group is arranged on the back side in the direction of movement of the object to be processed. In order from the intermittent processing means
The second intermittent processing means group disposed on the back side in the direction of movement of the object to be processed is operated to form striped processing areas at intervals of -2.Δa. Starting from the intermittent processing means arranged on the back side in the direction, the intervals between the stripes of the striped processing area formed by the first intermittent processing means group arranged on the front side in the direction of movement of the object to be processed are filled. With,
The processing object is operated to form an overlapping processing area Δa between the striped processing area, so that the moving object to be processed can be processed continuously, and at a constant speed. The processing area is continuously arranged along the direction of movement of the object to be processed, and the length of each processing area in the direction of movement is a, and the portions Δa at both ends of the length a are: It is equipped with an odd number of intermittent processing means for performing intermittent processing in which the processing amount tends to be insufficient compared to other parts, and among the intermittent processing means, the intermittent processing means that is arranged first on the near side in the traveling direction of the object to be processed is Starting from the processing means, one side of the odd-numbered or even-numbered intermittent processing means is sequentially formed to form an overlapping processing area Δa between the tip of the processing area of each intermittent processing means, so that the processing area of the first half is Then, the even-numbered or odd-numbered intermittent processing means on the non-operating side are operated in order from the intermittent processing means disposed on the front side in the direction of movement of the object to be processed. The processing area is operated to form the second half processing area by sequentially forming overlapping processing areas Δa between the front end of the processing area, and the processing area by the last intermittent processing means is the rear end of the first half processing area. The processing object is operated to form an overlapping processing area Δa between the processing object and the processing object, thereby making it possible to continuously process the moving object.
The processing area is characterized by being arranged continuously along the direction of movement of the object to be processed, which moves at a constant speed, and the length of each processing area in the direction of movement is a, and the length is a. A plurality of intermittent processing means are provided for performing intermittent processing in which portions Δa at both ends of a certain object tend to have insufficient processing amount than other portions, and the plurality of intermittent processing means are divided into two, and each an intermittent processing means group and a second intermittent processing means group, each of the intermittent processing means of the first intermittent processing means group and the second intermittent processing means group being arranged on the near side in the direction of movement of the object to be processed; The intermittent processing means of the first intermittent processing means group and the second intermittent processing means group are arranged alternately, starting from The operation is performed so as to sequentially form overlapping processing areas Δa between the rear end and the processing area by the last intermittent processing means of the second intermittent processing means group is the same as the first intermittent processing of the first intermittent processing means group. The method is characterized in that the processing object is operated so as to form an overlapping processing region Δa also between the tip of the processing region of the means, so that the moving object to be processed can be processed continuously. This will be explained in detail below with reference to the drawings.

Embodiments of the Invention FIGS. 5 to 12 are explanatory diagrams of different embodiments of the present invention, in which F ₁ , F _{2 .} . . are flash lamps, P ₁ , P ₂ ,
... is the irradiation area, t ₁ , t ₂ , . . . are irradiation timings, a is each length of the regions P ₁ , P ₂ . The example in Fig. 5 shows an odd number of flash lamps F ₁ F _2o+1 , with F ₁ in the first lighting order as the center, F ₂ to _{F o+1} on the left side, and F o+1 on the right side.
F _o+2 to _{F 2o+1} are arranged closely from the downstream side to the upstream side. Each lamp F ₁ ,
The lighting order of _F2 , . . . is in the order of subscripts ( ₁ , ₂ , . In other words, if the lamp F ₁ is turned on at time t ₁ , the next lamp F ₂ is turned on at time t ₂ when the recording paper 1 has moved by a-2·Δa. This time interval is the ramp
It is the same until F _o+1 lights up. This will cause the lamp
At the end of F _o+1 irradiation, recording paper 1 has a-
Striped exposed area P _o+1 that repeats at intervals of 2・Δa ~
P ₁ (each length a) is formed. Lamps F _o+2 to _{F 2o+1} placed on the downstream side partially overlap and fill this gap at both ends, but the first lamp
Lighting timing of F _o+2 t _o+2 is when lamp F ₊₁ is lit
It is assumed that the recording paper 1 has moved by a+(2n-1)·Δa from t _o+1 . The lighting cycle of lamps F ₁ to _{F o+1} is (a-
2・Δa), so (2n+
1) Increase the time by Δa. In this way, the unirradiated area a-2・Δa between the irradiated areas P ₁ and P ₂
When the lamp F _o+2 comes directly under the lamp F o+2, the lamp F _o+2 lights up, and the irradiation area P _o+2 has both ends Δa as shown in the figure.
It is formed by overlapping P ₁ and P ₂ . After that, the time interval at which the lamps F _o+2 , F _o+3 , ... are lit sequentially is F ₂ ~
As with F _o+1 , it is a-2·Δa, so that each irradiation area P _o+3 ...P _2o+1 is formed by overlapping the irradiated areas before and after it by Δa.

FIG. 15 is a dynamic explanatory diagram when n=3 is set in this method, and T(x) is the distance X (X=
a-2・Δa, etc.) represents the time required to move. According to this method, at time t ₇ when exposed by the last lamp F ₇ , (2n+1) exposed areas are formed on the recording paper 1, where each area overlaps the adjacent area by Δa. Incidentally, the timing t _2o+2 (=t ₁ ) for lighting the lamp _{F 1 in} the next cycle is T(a- ₂・
Δa) Later.

FIG. 6 shows an example using an even number of lamps F ₁ to F _2o . In this case, the first half F ₁ to Fn are arranged closely to the left of the center position, and the second half F _o+1 to _{F 2o} are arranged closely to the right, and an interval of one exposure length a is provided at the center. Similarly, the lighting order is in the order of subscripts. This method is equivalent to the one shown in FIG. 5 except for the lamp at the center position, and the lighting timing of each lamp within one cycle is the same as that shown in FIG. However, the lamp starts at time t _o+1.
When F _o+1 is turned on, the irradiated area by lamp F ₁ is such that the tip Δa is directly under F _o+1 , and beyond that, the irradiated area P _o+1 by lamp F _o +1 is added. It will be. The time from turning on the last lamp _F2o at time _t2o to turning on the first lamp _F1 of the next cycle at time _t2o+1 (= _t1 ) is T(a-3・
Δa), and shorten it by T(Δa) compared to T(a-2·Δa). This is because there is no lamp placed in the center. FIG. 16 shows the dynamic exposure situation in this case.

The example in FIG. 7 has the same lamp arrangement as in FIG. 5, but the lighting order of lamp _F1 is set to be the last in one cycle (first in FIG. 5). This is the difference between whether lamp F ₁ is considered to belong to the left side (Fig. 5) or to the right side (Fig. 7) among the odd number of lamps F ₁ to _{F 2o+1} , and 1 The lighting intervals within the cycle are the same.

FIG. 8 shows an example in which an odd number of lamps F ₁ to Fn are arranged closely in accordance with the subscript numbers from the upstream side to the downstream side. The lighting order and lighting interval in this case are fundamentally different from the previous three examples. In other words, the first half is an odd number order F ₁ , F ₃ , F ₅ , ..., F _o-2 , Fn, and the second half is an even number order F ₂ , F ₄ , F ₆ , ... F _o-3 , F _{o- 1}
The order is The lighting interval is T(a+Δa) in the same rank for both odd and even, and T[a when transitioning between different ranks.
-(n-1)Δa]. Figure 17 shows n in this method.
It is a dynamic explanatory diagram when =7. In this case, the subscripts of lighting timing t ₁ , t ₂ ... are lamps.
It does not match the subscripts of F ₁ , F ₂ , ....

The example shown in Fig. 9 is the lamp arrangement shown in Fig. 8, but only the lighting order of the lamps is an even number arrangement in the first half F ₂ , F ₄ , F ₆ , etc.
F _o-1 , and the second half is an odd number array F ₁ , F ₃ , F ₅ ,...Fn
The other parts are the same as in Fig. 8.

In the example shown in Fig. 10, an odd number of lamps F ₁ to _{F 2o+1} are closely arranged in order from the upstream side, and the lamp at the center
For F _o+1 , one lamp from the left lamp group F ₁ to Fn and one from the right lamp group F _o+2 to _{F 2o+} 1 are selected and lit alternately, and each group The selection order within depends on the lamp number. Since the lamp F _o+1 at the center position is selected last, the lighting order within one cycle is F ₁ , F _o+2 , F ₂ , F _o+3 , F ₃ , F _o+4 ,...
Fn, F _2o+1 , F _o+1 . The lighting timing is T(a+n・Δa) when moving from the left lamp group to the right lamp group in the same direction as the recording paper running direction, and T[a when returning from the right lamp group to the left lamp group. (n+1)·Δa]. Note that the lighting order and timing of the lamp F _o+1 at the center position are treated as belonging to the left lamp group. FIG. 18 is a dynamic explanatory diagram when n=3 in this method.

FIG. 11 shows an example in which there is an even number of lamps, and a distance a corresponding to one irradiation area is placed between the central lamp Fn and F _o+1 . In this case as well, the lighting order and timing within one cycle may be the same as in FIG. 10. However, the interval from lighting the last lamp F _2o in one cycle at time t _2o to lighting the first lamp F ₁ of the next cycle at time t _2o+1 is T[a-(2n+
1)・Δa] (in Fig. 10, this is T
[a-(n+1)·Δa]).

FIG. 12 shows an arrangement of an odd number of lamps as shown in FIG. 10, in which the central lamp F _o+1 is lit at the beginning of one cycle, and the remaining lamps are selected in the same manner as in FIG. 10. Therefore, the difference between the two examples depends on whether the lamp F _o+1 at the center position is treated as belonging to the left lamp group (Fig. 10) or as belonging to the left lamp group (Fig. 12). The effect is exactly the same.

In this way, the lamp lighting order and lighting timing can be changed in various ways, but the key is to combine the spatial delay due to the lamp arrangement order and the temporal delay due to the lighting timing, so that multiple lamps that are closely arranged can be used. At 1 o'clock, only one lamp is turned on, so that the beginning and end of the irradiation area partially overlap the recording paper.
This means continuous irradiation so that there are no gaps.

FIG. 13 is a schematic diagram of an electrophotographic printer that can implement the various processing methods described above.
The structural parts are generally the same as the conventional one, and the photosensitive drum 9
is uniformly charged by a charger 10, and then image information is exposed by an optical system 11 including a laser plateau, thereby forming an electrostatic latent image on the surface. Next, when the latent image is developed by a developing device 12, toner selectively adheres to the latent image. On the other hand, the paper (recording paper) 1 is fed out while being controlled at the same speed as the surface speed of the photosensitive drum 9, and is conveyed to the transfer section 13. In the transfer section 13,
The transfer charger 14 uniformly charges the back surface of the paper 1 and transfers the toner on the photosensitive drum 9 to the paper 1. Then, when the paper 1 is conveyed to the fixing section 15,
The toner on paper 1 is thermally fused to the paper. On the other hand, the residual toner on the photosensitive drum 9 is removed by the cleaning section 16, and the cycle moves on to the next cycle. A code plate 19 on which equally spaced bright and dark stripes are printed is connected to a drive shaft 18 of a tractor 17 that is transporting the paper 1 in the transfer section 13, and outputs pulses 24 corresponding to the transport of the paper 1. For example, one pulse is output when paper 1 moves by 0.1 mm.

When the fixing unit 15 is configured in the manner shown in FIG. 5, and for the sake of simplicity, let n = 1, the paper 1 is processed after the lamp F ₁ is turned on until the upstream lamp F ₂ is turned on. Distance traveled by (a-2・Δa)
divided by 0.1mm, N ₁ , and the amount of paper 1 between turning on the lamp F ₂ and turning on the lamp F ₃ on the downstream side.
The value obtained by dividing the distance traveled by (a + Δa) by 0.1 mm
N ₂ is stored in the microcomputer 20 in advance. The units 21-1 to 21-3 all have the same configuration, and are started when receiving start signals 22-1 to 22-3 from the microcomputer 20. In other words, the power supply section 4 of the unit 21-1 receives the signal 22-1.
After the gas stabilization time T _G in the flash lamp F ₁ has elapsed, the capacitor 3 starts charging to a constant voltage V. At the same time, the power supply section 4 sends an instantaneously changing current to the primary side of the trigger coil 7,
A high voltage is applied to the trigger wire 8 to light the flash lamp _F1 . This operation is similar to the other unit 2.
The same applies to 1-2 and 21-3. The time T _G is as follows; when the flash lamp is discharged, it becomes conductive for a certain period of time and the capacitor 3
If the capacitor is short-circuited and charging is restarted at this time, the capacitor cannot be charged, so the power is turned off for a certain period of time to wait for the insulation of the flash lamp to recover. The power supply section 4 of each unit is connected to a common AC power source as in FIG. 3. 6 is a reactance that adjusts the current flowing through the flash lamp _F1 ,
25 is an amplifier that amplifies the pulse 24, and 23 is the initial value from the microcomputer 20 as described above.
N ₁ or N ₂ is preset and amplifier 2
This is a counter that issues an interrupt 26 to the microcomputer 20 when the count value for the 5 output pulses matches a preset value.

The operation will be further explained below with reference to FIG. First, when a start signal is sent at the start of printing, the operations of each part are started. When microcomputer 20 receives this start signal, it presets data _N1 in counter 23 according to a program. At the same time, signal 22 is sent to unit 21-1.
-1 to instruct lamp _F1 to turn on. Thereafter, as the drive shaft 18 of the tractor 17 rotates, a pulse 24 based on the moving distance of the paper 1 is sent out from the code plate 19, and the counter 23 counts this pulse. When the counted value matches the preset data _N1 , a match signal 26 is output to interrupt the microcomputer 20. As a result, the interrupt processing program in the microcomputer 20 is started, and the data is stored in the counter 23.
Reset N ₂ and at the same time set unit 21-2.
A signal 22-2 is sent to instruct the lamp _F2 to turn on. When the paper 1 advances further and the count number of the counter 23 matches _N2 , a match signal 26 is output to interrupt the microcomputer 20.
At this time, the microcomputer resets the data _N1 in the counter 23 according to the next interrupt processing program, and sends the signal 2 to the simultaneous unit 21-3.
2-3 is sent to instruct lamp _F3 to turn on.
This completes one cycle, and then when the count number of the counter 23 matches _N1 , the signal 22-1 for the next cycle is sent out in the same manner. The above-described operation is repeated while the paper 1 is continuously running, and continuous fixing is performed with an overlapping fixing area Δa.

Furthermore, trigger pulse 2 at time t ₀ and t ₁ in Fig. 14
2-1 and 22-2, the capacitor 3 is not yet charged, so no discharge occurs, and during that time, the paper 1
The distance traveled by is not fixed, but the transfer charger 1
4 to the fixing unit 15 is sufficiently long, so there is no practical problem. In the case of the above-mentioned printer, the data N ₁ stored in the microcomputer 20,
N ₂ ... is set according to each method, counters are added as necessary, and signals 22-1, 2
By creating a program that sets the transmission order of 2-2, . . . in accordance with the method, all of the methods shown in FIGS.

Although the above description has been made regarding the case where one lamp is lit at a time, F ₁ , F ₂ , . . . may each be a lamp group consisting of a plurality of lamps that are lit simultaneously. Further, the minimum number of lamp groups to be divided and lit is two. Further, the content of the continuous treatment is not limited to the above-mentioned electric light, but may include heating, cooling, welding, spraying, painting, etc.

Effects of the Invention As described above, according to the present invention, when a plurality of intermittent processing means continuously perform intermittent processing on an object to be processed, the processing is performed continuously so as to partially overlap. There is an advantage that the joints of the parts can be processed evenly, and the practicality of the continuous system of the close arrangement sequential processing type can be particularly improved. Note that "close arrangement" formally means that the light sources including the cover are arranged closely together, but in reality, it means that the processing areas on the object to be processed are arranged closely together when each processing device is operated simultaneously. It has a diffusive property, and if the light sources closely overlap, they will be separated. Moreover, when making them come into close contact with each other, the operation timing for the width Δa to be overlapped can be adjusted accordingly.

[Brief explanation of drawings]

FIGS. 1 to 4 are explanatory diagrams of conventional fixing processing, FIGS. 5 to 12 are explanatory diagrams of different embodiments of the present invention, and FIG. 13 is a configuration diagram of an electrophotographic printer to which the present invention is applied. , Figure 14 is the time chart,
Figures 15 to 18 are Figures 5, 6, 8,
FIG. 10 is a dynamic explanatory diagram of FIG. 10; In the figure, 1 is paper (object to be processed), F ₁ , F ₂ . . . are flash lamps (intermittent processing means), and 20 is a microcomputer.

Claims (1)

[Scope of Claims] 1. The processing area is continuously arranged along the direction of movement of the object to be processed, which moves at a constant speed, and the length of each processing area in the direction of movement is a, and the length is a.
The apparatus is equipped with an odd number of intermittent processing means for performing intermittent processing in which the Δa portions at both ends of the object tend to have insufficient processing amount than other portions, and among the intermittent processing means, the first one The intermittent processing means disposed at the center in the traveling direction is operated, and then the n intermittent processing means disposed at the front side in the traveling direction of the object to be processed are operated by the intermittent processing means at the front side of the intermittent processing means disposed at the center. The processing means are sequentially operated so as to form striped processing areas at intervals of a-2·Δa, and the n intermittent processing means arranged at the back side in the direction of movement of the object to be processed are In order from the intermittent processing means disposed in the center and the intermittent processing means on the opposite side, the intervals between the striped processing regions formed by the intermittent processing means disposed on the front side in the direction of movement of the object to be processed are determined. the object to be processed while it is being moved can be processed continuously. Continuous processing method using processing means. 2. The processing areas are continuously arranged along the direction of movement of the object to be processed, which moves at a constant speed, and the length of each processing area in the direction of movement is a, and the length is a.
The apparatus is equipped with an odd number of intermittent processing means for performing intermittent processing in which the Δa portions at both ends of the object tend to have insufficient processing amount than other portions, and among the intermittent processing means, the first one The n intermittent processing means arranged on the front side in the direction of movement are sequentially arranged starting from the intermittent processing means arranged on the back side in the direction of movement of the object to be processed.
The apparatus is operated so as to form striped processing areas at intervals of a-2.Δa, and then the n intermittent processing means disposed on the back side in the direction of movement of the object to be processed are operated so as to form striped processing areas at intervals of a−2·Δa. Starting from the intermittent processing means disposed on the back side in the direction, the intervals between the stripes of the striped processing area formed by the intermittent processing means disposed on the front side in the direction of movement of the object to be processed are filled, and the stripes are The intermittent processing means is operated to form an overlapping processing area Δa between the processing area of the shape, and further, the intermittent processing means arranged at the center in the direction of movement of the object to be processed is arranged on the front side in the direction of movement of the object to be processed. forming an overlapping processing area Δa between the processing area of the most proximal intermittent processing means of the intermittent processing means that have been processed, so that the moving object to be processed can be continuously processed; A continuous processing method using an intermittent processing means, characterized by: 3 They are arranged along the direction of movement of the object to be processed, which moves at a constant speed, and the length of each processing area in the direction of movement is a, and the portions Δa at each end of the length a are: An even number of intermittent processing means are provided for performing intermittent processing in which the throughput tends to be insufficient compared to other parts, and the even number of intermittent processing means are divided into two parts, each with a first one.
an intermittent processing means group and a second intermittent processing means group,
The first intermittent processing means group and the second intermittent processing means group are respectively arranged continuously with an interval corresponding to the processing area a, and first, the front side in the direction of movement of the object to be processed is The first group of intermittent processing means arranged at Then, the second group of intermittent processing means arranged on the back side in the direction of movement of the object to be processed is sequentially operated, starting from the group of intermittent processing means arranged on the back side in the direction of movement of the object to be processed.
a first disposed on the front side in the direction of movement of the object to be processed;
filling the intervals between the stripes of the striped processing area formed by the intermittent processing means group and forming an overlapping processing area Δa between the striped processing area; A continuous processing method using an intermittent processing means, characterized in that the object to be processed can be processed continuously. 4 They are arranged continuously along the direction of movement of the object to be processed, which moves at a constant speed, and the length of each processing area in the direction of movement is a, and the length is a.
The apparatus is equipped with an odd number of intermittent processing means for performing intermittent processing in which the Δa portions at both ends of the object tend to have insufficient processing amount than other portions, and among the intermittent processing means, the first one One side of the odd-numbered or even-numbered intermittent processing means is sequentially arranged starting from the front side in the traveling direction, and the overlapping processing area Δa between the tip of the processing area by each intermittent processing means is sequentially processed. Then, the even-numbered or odd-numbered intermittent processing means on the non-operating side are operated to form the first half processing area, and then the intermittent processing means disposed on the front side in the direction of movement of the object to be processed are operated. Starting from the means, the overlapping processing area Δa is sequentially formed between the tip of the processing area by each intermittent processing means to form the latter processing area, and the processing area by the last intermittent processing means is , operating so as to form an overlapping processing area Δa also between the rear end of the first half processing area, and making it possible to continuously process the moving object to be processed. Continuous processing method using intermittent processing means. 5 They are arranged continuously along the direction of movement of the object to be processed, which moves at a constant speed, and the length of each processing area in the direction of movement is a, and the length is a.
is provided with a plurality of intermittent processing means for performing intermittent processing in which the processing amount tends to be insufficient in the Δa portions at both ends of the
an intermittent processing means group and a second intermittent processing means group, each intermittent processing means of the first intermittent processing means group and the second intermittent processing means group being arranged on the near side in the direction of movement of the object to be processed; The intermittent processing means of the first intermittent processing means group and the second intermittent processing means group are arranged alternately, starting from The operation is performed so as to sequentially form overlapping processing areas Δa between the rear end and the processing area by the last intermittent processing means of the second intermittent processing means group is the same as the first intermittent processing of the first intermittent processing means group. An intermittent processing means, characterized in that: an overlapping processing region Δa is also formed between the processing region of the processing means and a leading end of the processing region of the processing means; and the moving object to be processed can be continuously processed. continuous processing method.