JPS60114885A - Recording device - Google Patents

Abstract

PURPOSE:To inform easily the state of a device to an operator with a simple constitution by flashing a display means, where a number concerning recording is displayed, until the device reaches a prescribed state. CONSTITUTION:An opration part 46 provided in an attachment 13 has a copy key and an operation display part. A copying machine body C is provided with a density control lever and an electric power supply and jam display part 48. In case of absence of papers of failure of paper feeding for cassette paper feeding, ''P'' is displayed and flashed on a segment display device 46a, where maximum ''19'' of the copy number can be displayed, to report this state to the operator. When the power supply is turned on, ''1'' is displayed and flashed at intervals of a time corresponding to the temperature of a fixing roll 10a to report the waiting state of the device to the operator. When copy number set keys (puls key and minus key) 46b and 46c are depressed, the copy number is counted up and down at intervals of a prescribed time one by one.

Description

[Detailed description of the invention]

[Technical Field] The present invention relates to a recording device, and more particularly to a recording device in which a display blinks until the device reaches a recordable state. [Prior Art] Conventionally, in recording devices such as copying machines and laser beam printers, in addition to a B-pattern 7-segment display to display the number of recorded sheets, a power lamp, an indicator to indicate whether copying is possible, and a jam detection indicator are also used. A large number of display devices were provided, such as display devices. Providing such a large number of indicators not only complicates monitoring by the operator, but also requires display units to be arranged in multiple locations, making the device complex and expensive. [Objective] The present invention was made in view of the above-mentioned points, and an object of the present invention is to provide a recording device that has a simple configuration and is inexpensive. Another object of the present invention is to provide a recording device that has a simple configuration and can easily inform an operator of the status of the device. [Examples] Examples of the present invention will be described below with reference to the drawings. FIG. 1 shows a perspective view of a copying apparatus to which the present invention is applicable. In addition, 3 whose cross-sectional view is shown in FIG.
A suppressing plate 1-1 is fixedly provided on the top of the document table, and the original table made up of both plates moves forward in the direction of arrow F or backward in the direction of arrow R. Reference numeral 2 denotes a short-focus small-diameter imaging element array, and by this array 2, the reflection of the original placed on the original platen 1 by the halogen lamp LAI is transferred to the seamless photosensitive drum 3.
The top is exposed to slit light. Further, 4 is a charger, and 11 is uniformly charged on the photosensitive drum 3.
Perform ¥den. The uniformly charged drum 3 is connected to the element array 2.
Image exposure is performed by , and an electrostatic image corresponding to the original image is formed. Next, this electrostatic side 1 is
The elephant is made visible. Incidentally, the seamless photosensitive drum, the developing device, and the charger are integrally removable from the main body of the apparatus. On the other hand, the transfer material P that is manually fed from the manual feed table 6 is detected by a paper feed sensor Q2 (this sensor Q2 is located at the front and back of the paper feed roller 6a) which detects that the transfer material P (hereinafter simply referred to as paper) is manually fed. When either arm 6-1 or 6-2 is lifted by the paper, it is turned on.) is turned on, the manual paper feed solenoid is activated. The paper feed roller 6a, which is energized by SL4 and is constantly rotating, descends toward the fixed roller 6b, grips the paper, and conveys it. Since the registration shutter 7 is always closed at about 11t so as to block the conveyance path 14h, the leading edge of the paper hits this shutter 7 and stops. When the leading edge of the paper is stopped in this manner, the plate slips between the rollers 6a and 6b and is no longer conveyed, but after a while, the energization of the manual paper feed solenoid SL4 is stopped. Then, after the manual paper feed solenoid SL4 is driven again, the registration signal is applied to the registration shutter solenoid SL3, so that the paper with the shutter 7 lifted upward is conveyed again, and the constantly rotating roller 6c, 6d toward the photosensitive drum 3. Next, the toner image on the photosensitive drum 3 is transferred onto the transfer material P by the transfer charger 8. Thereafter, the transfer material P separated from the drum 3 by a separation bell (8a) is guided to a fixing device 10 by a guide 9, and the toner image on the transfer material P is fixed by a fixing roller 10a that has a built-in heater H1. The sheet is then discharged onto the tray 12 by the sheet discharge roller 11. Note that Q3 is an optical or mechanical sheet discharge sensor;
By detecting paper, a detection signal is output. Also, THI is a thermistor, 1) II fixing device I
This is for detecting the temperature of the fixing roller at O. The remaining toner after transfer on the drum 3 is then cleaned by a cleaner 8b to prepare for reuse. 8c
is a cooling fan that discharges heated air inside the copying device housing to the outside. A rack (not shown) is fixed to the lower part of the mounting table 1 according to this embodiment, and the mounting table 1 is moved in the F or R direction by rotating a pinion meshed with this rack. SLI is a document platen stop solenoid that controls the backward clutch, and solenoid SL2 is a document platen advance solenoid that controls the forward clutch. It controls movement. Two microswitches MS3. The MS4 is fixedly mounted, and the μm cam corresponding to this microswitch is fixed on the mount 161. FIG. 11 is a diagram showing the 111 position of such a cam and the operation of the microswitch. A position cam C1, a registration cam C2, and a start position cam C3 are provided. To explain the relationship between the cam and the switch with reference to Figure 11a''h, as shown in a, the mounting table starts to move backward (in the direction of arrow R), cams C1 and MS4 are separated, and MS4 changes from ON to OFF.
When F (MS3, M84 turns ON when pushed by the cam), turn on the document platen stop solenoid SLI.
, (However, only at the end of copying), starts the exit jam check for the final copy. Next 1c, b As shown in VC<MS3.1 When both VIS4 are turned ON, original 4fX stop solenoid SL1'f:
Turn it ON and perform paper feed error check (cassette paper feed only). Next, as shown in C, the 16 vehicles move forward in the direction of arrow F, and M
When S3 changes from ON to OFF, manual paper feed solenoid 1/noid SL4 is turned ON. Next, as shown in d, <MS4 is OFF.
When it turns ON, the registration shutter solenoid SLa is turned ON and the current 1-Song bias is switched to the one for images according to the value of the copy density lever. Next, as shown in e, when MS4 changes from ON to OFF, the registration shutter solenoid SL3 k OF' F
Then, the manual paper feed solenoid SL4 is turned OFF, and the exit jam check for temporary continuous copying is started (excluding the last copy). Next, as shown in f, when Ms3 is turned from OFF to ON, the document platen advancement solenoid SL2 is turned OFF to reverse the moving direction. Next, as shown in g, when MS3 changes from ON to OFF, the cassette paper feed solenoid 5L301 for the second and subsequent sheets is turned OFF.
Set to N (for continuous copying). Then, as shown in h, when MS4 changes from OFF to ON, the developing bias is switched to non-artist, and an exit delay jam check is performed. In the case of continuous copying, control from step a is repeated again. As described above, the copying apparatus according to this embodiment is capable of manually feeding only one transfer material P.

[-Although it has a built-in feeding device, when copying multiple sheets of transfer material continuously due to increased copy usage, there is an attachment 1 attached to the bottom of the copying device main body C.
3, continuous feeding by the cassette 14 becomes possible. This attachment 13 has a cassette paper feed solenoid S.
A paper feed roller 14a controlled by L 301 and conveyance rollers 14b and 14c which are constantly rotating are provided,
The conveyance path formed by the conveyance guides 144 and 148 is
'It is constructed so as to be connected to the conveyance path 14f provided in the main body. Note that the conveyance path 14f and the aforementioned conveyance path 1 for manual paper feeding are
4g is a conveyance path 14h common to both conveyance paths 14f and 14g.
The leading edge of the transfer material P is stopped by a resist shutter 7 provided on this conveyance path 14h. Note that 46 is an operation section provided on the attachment 13, and has a copy key and an operation/display section. Also 47.4
Reference numeral 8 designates an operating section provided on the main body C of the copying machine, 47 a 1-1 lever, and 48 a power supply/jam display section. FIG. 3 shows the operation section 46 and power/jam display section 48 in more detail. In Fig. a, 46a is a segment display that can display the number of copies up to 19 copies, and when there is no paper or there is a paper feeding error in the cassette paper feeding, the segment display 46a blinks 0 to notify the operator. When the power is input, 1 is applied at time intervals according to the temperature of the fixing roller 10a at that time.
Displays a blinking // symbol to notify the operator that the device is in a wait state. 46b and 46c are copy number setting keys (plus key, minus key), and when pressed, the number of copies is counted up and down by 1') at regular time intervals. 46d has a function to clear the number of copies (11) set with the clear/stop key, and copy 'f:
It has a function to stop. 47e is a copy key for performing a copy star tracker. 48a in Fig. b is a power lamp that lights up when the 'il+' power is input to the copying apparatus, and 48bl' is a jam indicator that displays when the transfer material is jammed. In addition, in this device, the display for setting the number of copies is also used for weight display, paper out display, etc., so the configuration of the operating section is simplified, which not only makes operation easier but also reduces costs. be able to. FIG. 4 is a control circuit block diagram of the copying apparatus shown in FIG. 1. Q203 is a control unit, which is a microcomputer with a built-in 8-bit A/D converter, such as Texas Instruments TM52300. Furthermore, the control unit Q2
An A/D converter may be provided outside of 03. In addition, as for supply voltage corrosion, household AC power supply is connected to transformer Tl.
By inputting it from the power supply circuit 200 via the DC power supply, 24V and 9V are created. The AC power source is mainly used for the main motor M1, halogen lamp LA1, halogen heater H1, etc., the DC24V power source is used for the plunger (solenoid), etc., and the DC9V power source is used for the power source of the microcomputer Q203, etc. When power is supplied to the microcomputer Q203 by turning on the main switch MS, the microcomputer Q203 is initialized by a 1NiT (not shown) terminal. In other words, the program starts according to the flowchart described later. Further, as shown in Figure 5a, the signal rectified by the diodes D3 and D4 is inverted and amplified by the inverter Q215 to become a signal as shown in Figure 5A, and an AC waveform (from A Cm) is applied to the iNT and J1 terminals. It is input as a zero-crossing pulse that becomes H level near the zero-crossing point of the waveform). Incidentally, the signals 5i21a and 1) are the signals indicated by SL and 82 in Fig. 4, respectively. When the microcomputer Q203 is enabled for interrupts, the microcomputer Q203 enters the interrupt program at the rising edge of the zero-cross pulse s2 (FIG. 5b) input to the iNT terminal. Furthermore, at the J1 terminal, the internal microcomputer program counts the number of zero-cross pulses input within a predetermined period of time, resulting in a value of 50/6.
A distinction is made between 0Hz and 0Hz. That is, after the microcomputer Q 203 is initial reset after power is turned on, the control sequence of the control section shown in FIG. 4 is started according to a flowchart described later. The microcomputer Q203 starts the sequence by turning on the 5 power lamp 48a and segment display 46.
This can be confirmed by the blinking display of ゝゝ1'' in a.
If the temperature of the fixing roller is lagging behind the r9r constant temperature when the power is turned on, "l" is simply displayed.Furthermore, when the initial reset is performed, the microcomputer Q203 starts the first timer. and J
Detects the H level of one terminal. If the H level is not detected, the process does not proceed to the next step, and if it is not detected even after the first timer expires, it is considered abnormal. J1 terminal H
When the level is detected, a timer for 50/60 Hz detection is started. In this embodiment, the voltage and frequency are 100 m5ec, and as shown in Fig. 6 a and b, when the H level start V is rubbed, the timer receives the zero cross pulse obtained from the AC electric wire (a) → It will be counted within the range of (b). In the case of 50 Hz (in the case of figure a), the count reaches a maximum of 1 within 100 m5ec unless the first H level is counted.
It only counts up to 0, and 60)-1z
In the case (in the case of figure b), the count is 100 rnsc unless the first H level is counted, as in the case of 50 Hz.
During c, there will be a minimum of 11 digits, so if the count is less than 10, it will be 501 (z, and if it is larger than 10, it will be 60 Jlz
If 50.60) 1z' power frequency waveform can be determined. As a result, even if the frequency changes, accurate control I11
can be done. If the count result is 6 or less, trouble such as at least one of the diodes f''iD3.D4 is damaged is expected, and it is possible to output an abnormal output.Figure 7a shows D3 or D4. The signal when one of the is in the order state (signal 512)
, and b indicates a signal (signal 522) obtained by inverting and amplifying signal 812 by inverter Q215. Father, 81
2.822 are respectively Sl in FIG. This is the signal at the location indicated by S2. In addition, it is also possible to notify the user as a normal detection and to compensate for the unfavorable parts of the sequence so that the copying operation can be performed.In this case, the abnormality of the zero cross pulse can be corrected by the microcomputer and the machine functions as a copying device. : Need to be satisfied. For example, the trouble that can be expected to occur due to the failure of one of the diodes D3''!l; or D4 is the timing of turning on the zero-cross controlled No. Approximately 1/
2, so the weight-up time etc. will be longer. Furthermore, the timer time counted up by tL is doubled due to the zero-cross pulse output from the inverter Q215. Therefore, in order to correct this abnormality, it is necessary to set the timer for counting zero-cross pulses to half the value since the count number is 6 or less. In addition, the halogen heater H1 is 50/60 from the zero cross point.
If you start the timer corresponding to Hz and turn on the halogen heater again when the timer is up (the next zero cross point), you can shorten the weight poetry by 6. Furthermore, the fixing roller 10
When a reaches a predetermined temperature and the heater is turned off, there is no particular problem, so the timer is not forcibly started as described above. Furthermore, instead of using the timer, the halogen heater may be turned on by watching the fall of the zero-cross pulse 17) input to the Jl terminal. However, when the above correction is performed, the diode D
Even if one of the three levers D4 is damaged (an abnormality in the number of zero-crossing pulses), the copying operation is possible, so some users may not be able to discern the abnormality. Furthermore, if the abnormality of the diode as described above is left as it is, there will be many unreasonable situations such as shortening the guaranteed life of the copying device.Therefore, it is possible to stop the copying function at the same time as detecting the abnormality. In addition, the count number is 0. If 1 occurs, it is impossible to drive due to the device υ configuration, so an abnormal output is generated. Returning to the fourth control section again, the input port is Kl, 2. 4. 8, and is connected to output ports R11 to R13 via sensors, input keys, etc. A diagram of these is shown in FIG. From the figure, the minus key 46c and the clear/stop key 46d are in the manual port Kl, and the copy key 47e is in the input port 2,
The plus key 46b is placed on the input boat, and the paper output sensor (4) is placed on the input boat.
Also called discharge sensor. ) Q3, home position/back position (HP-BP) sensor IVI S 3,
A jam kill sensor, paper feed sensor Q2, and registration position sensor MS4 are input to the input boat K8, respectively. Further, the input method is performed at the timing shown in FIG. When the interrupt program starts with the rising edge of the pulse wave input to iNT☆Shinko, 1) i
Output port R at the specified timing of the interrupt program written in J.
11, R12, and R13 to output pulse signals without overlapping, ttii. When outputs are output to R12 and R13, the contents of input ports 1 to 8 are stored in the RAM in the microcomputer 203 to obtain the input state. Output port R1
1 is normally used as a dynamic scan signal with a period of 10
H level is 100μ to 200 It at 0 to 12011z
see's pulse oscillation, but in the event of an abnormal phenomenon, jam, abnormal operation, etc., a static signal or an oscillation operation of 0.6 seconds on and 70.6 seconds off is performed. In the case of a normal node oscillation, the oscillation output from R11 is absorbed by a capacitor (not shown) connected to R11, so the jam indicator does not light up due to this oscillation output, and the latter static The jam indicator lights up or blinks when the output is - or 06 seconds on and 10.6 seconds off. RO to R13, R14, and QO-Q7 of the control unit Q203 are wired so that they can be controlled independently at output ports. A diagram of these is shown in FIG. The output port RO is not normally used for the sphere shown in the figure. Father, the cassette paper feed solenoid SL3'01 is in the output port ■ll.
Output capo) R2 has document platen advance solenoid SL2.
The document platen stop solenoid SLI is connected to the output port R3, the registration shutter SL3 is connected to the output port R4, the power lamp 48a is connected to the output port R5, and the image quality adjustment function 47 is installed to the output port 1-6. A bias switching circuit B1 that enables Ct degree adjustment is installed, a high voltage circuit HV is connected to the output port 147, a main motor M1 that drives the hexagonal drum 3, etc. is connected to the output port R8, and a halogen circuit is connected to the output port R9. The lamp LAI is connected to the output port), the halogen heater H1 is connected to the output port R1'0, the manual paper feed solenoid SL4 is connected to R14, and the jam indicator 48b is connected to the output port R11V. A segment display 46a is connected to the output ports QO to Q7.Next, temperature control in this embodiment will be explained.As the microcomputer Q203 has an A/D input function as described above, Temperature control element (thermistor) T H
1 analog input to input port Al and converts it to digital (Hereinafter, this digitally converted value will be referred to as A/D
It is called value. ), the temperature of the halogen heater H1 is controlled. This temperature control is done by the thermistor THI.
from low temperature (below 50"C) to 200°C"t
In order to control the O-ra 10a fully and effectively, a resistor R2O3 is connected in parallel with the thermistor TH1. As a result, the resistance value range of the thermistor THI is narrowed, and the resistance value can be set to such a value that temperature control of the fixing roller 10a near 180° C. can be carried out with high precision and faithfulness. If a thermistor having a total Ω of between OKΩ and 800 is used as a normal temperature control element, there will be a temperature difference of 10°C or more when the control temperature is changed by IKΩ due to the characteristics of the thermistor. Also, if you simply convert up to 800 ohms using an 8-pit A/D converter, you will get data of more than 3 ohms per bit. Therefore, control within ±1°C near 180'C cannot be achieved. However, by inserting a resistor R2O3 in parallel with the thermistor THI as in this embodiment, the control point )(180"
(near 0) has good accuracy and can detect to some extent at low temperatures, making it possible to perform optimal temperature control. In this way, in this embodiment, temperature control can be performed over a wide range and with high accuracy by using a simple circuit configuration of tr'6 using an 8-bit A/D converter. Note that resistance 1 (206°R207, R2O3 is A
This is the key point in setting the /D value, and the terminals VREF and V
The 'CL value of Ass is set. The x(V) input to A1 is calculated as follows: (VASS VREF) / 25
5-al (A/D) value. Therefore, in this circuit configuration, the A/D value is FF when the thermistor T Hi terminal is open (l!, Ir line), and OO when the thermistor T Hi terminal is shorted (short circuit). Also, the resistance value of the thermistor THI and A/DIll! depending on the usage condition. The combination of i is resistance R206, R20
7, R2O3, R201 Various possibilities can be considered by appropriately combining the values of R203, R202, but in this example, it is possible to control the temperature level more precisely under conditions where temperature control can be ensured. Next, fIJ degree control of the fixing roller 10a will be explained in detail. In this example, the thermistor T
The surface temperature of the constant pressure roller 10a is read using the HI, and this is converted into an A/D value to determine the current temperature. And) The logen heater H1 is zero-cross controlled by the aforementioned zero-cross nozzle. As shown in FIG. 12, T in this embodiment. (14s”e)
. 'I'l (155"O), T2 (1ti 5°O
), T3 (185'0), the following temperature control is performed. In FIG. 12, the dashed line shows the change in the surface temperature of the fixing roller 10a due to full-wave energization, and the solid line shows the change in the surface temperature of the fixing roller 10a due to 1 cycle on/1 cycle off. (1) When the power is turned on, the surface temperature of the fixing roller 10a is detected by the thermistor THI, and this is a predetermined temperature T as shown in FIGS. 15A and 15B. If it is lower than that, the first timer is started and the halogen heater H1 is supplied with full-wave current during that time. T when the first timer overflows (ends). The above is determined as follows, and as shown in FIG. 12A, if the temperature is below To, T. Flow the entire liquid '1 at the point where it is detected. Then, when To is detected, the wait is released, that is, the copy is enabled. After detecting To, the halogen heater H1 is energized for one cycle on/one cycle off. As shown in FIG. 12B, < 041 T at the time the timer overflows. If the above is detected, the wait is canceled and energization is performed for one cycle on/one cycle off. Note that during the wait, the surface temperature of the fixing roller 10a is measured by a thermistor T.
If the surface temperature is detected by HI and the surface temperature is below 70'O, the flashing display of 1 on the segment display 46a will be turned on for 0.6 seconds and off for 10.6 seconds, and each time the surface temperature rises by a predetermined temperature, the segment display will be turned on. The on/on time interval of the device is decreased by a predetermined number of seconds and blinks. In addition, in order to make the flickering time the same even if the frequency is different, the zero cross pulse is set at 50 / 60 Hz'kf (zero cross pulse to be determined and counted). Segment display 46a
(11) When the power is turned on, the temperature that rises sharply from the thermistor THI is as shown in Fig. 12C.
If the temperature is between Tl (155°C), the total wave f m tun 2
After a few seconds, release the wait. Then, after the wait is released, energization is performed for 1 cycle on/1 cycle off. (
(165°C), apply full-wave current for 1 second and release the weight. After the wait is released, energization is performed for one cycle on/one cycle off. As shown in Figure 12E, the temperature when the 6ψ electric current λ is on is T2 (1
65°C) to Ts (185'O), the wait is canceled and the halogen heater H1 is controlled using a one cycle on/one cycle off energization method. Finally, the temperature is stabilized at T3 (185°C), and after the surface temperature of the fixing roller 10a reaches T3, the halogen heater H1 is turned off → I cycle on/1 cycle off ip ¥: The surface temperature of the fixing roller 1()a is stabilized at around T3 by turning the fixing roller 1()a. In (1), if the surface temperature of the fixing roller 10a is lower than To, the first timer is started and T is reached when the first timer overflows. The above-mentioned or below-mentioned determination is performed, and as a second example, T. In the following cases, the second timer may be started and full-wave energization may be performed. And the temperature is T. The second timer is repeatedly started until the above value is reached. Same as above, the temperature is T. You can cancel the weight when it reaches this point. Further, in (1), when the first timer overflows, it is determined whether 7110 or more or less than 7110, but in the third embodiment, T. In the following cases, aftereffect energization is performed until 1jTo is detected. And T. At the time of VC control, the power supply may be switched to 1 cycle on/1 cycle off, and the second timer may be started, and the wait may be canceled when the second timer overflows. T again. When the third
It is also possible to start the timer, perform full-wave energization, and release the wait when the third timer overflows. Also, in (1), T when the first timer overflows. That's it T. The following determination is made, and as a fourth example, T. 1゛ in the following cases. The first timer is repeatedly started and full-wave energization is carried out until the above is reached. And the temperature is T. When VCi is turned on, switch to 1 cycle on/1 cycle off to 1↓L and switch to 2nd cycle.
It is okay to start the timer and release the wait when the second timer overflows. When controlling the temperature of the fixing roller 10a as described above,
By using a timer as in this embodiment, the need for complicated temperature control program software can be reduced. In fact, by combining the method of energizing the halogen heater H1 with a timer, it is possible not only to prevent overshoots, but also to perform temperature control with greater accuracy. The temperature detected by the father ↑ [The blinking interval of the segment display changes according to the first report, so the user can easily know the current temperature status of the device. Therefore, in a device where weight-up operations take time, the user can easily know whether or not the mask can be used immediately, which is very convenient. In this embodiment, as a safety mechanism, in the following cases, it is assumed that there is an abnormality in the drive circuit including the halogen heater H1 or thermistor T H1, and the energization to the halogen heater H1 is prohibited. b) When the temperature of the fixing roller 10a does not reach the first predetermined temperature even after 11 seconds have passed since the power was turned on. (Example) If the temperature of the fixing roller 10a does not reach the second predetermined temperature (145°C for 1+J) even after 30 seconds have elapsed since the power was turned on and the temperature reached the first predetermined temperature (for example, 70'0). If. C)
When the state is ready for copying, the IHj halogen heater J-I 1 is energized for 20 seconds continuously without basting. In other words, here the temperature of Shipi 71 Turora 10a is 1.13
Detected by the i k thermistor, this point is detected by Yi1! The timer at fx1 is set to variably set to indicate an abnormal state at any time or at a specific timing. In addition to changing the timer according to the detected temperature, it is also possible to change the timer even when the operating state of the copying machine changes. According to the above, it is possible to detect abnormalities in the bJ'+ dd! circuit, including the thermistor and halogen heater, which was previously impossible, thereby further increasing safety. Due to the configuration, a high-power halogen heater can be used, so the wait time is returned, making it very easy to use for the user. Valid. Next executed by microcomputer Q203)
The program will be explained using the flowcharts shown in FIGS. 13a to 13h. The main switch MS is the photographic device μ that is used throughout the Kienri series.
'fI: When turned ON, a reset signal (10m
A pulse of about sec) is applied, and a flow of 1 lil J as described below starts. In addition, the flags used in the flowchart and their functions are explained in Tables 1 and 2. Table 1 Table 2 After the initial reset of the microcomputer used in the control unit, the internal memory contains random values, so first clear the memory (RAM), and then clear the number of copies for the device. 1 is automatically initialized as 1, and 1 is displayed on the display accordingly. (Step 100) Next, the power supply frequency monitor signal (
An internal timer is set (step 101) to determine 50/60 Hz from the zero cross signal), and when the timing ends, interrupts are enabled (step 102) so that an internal interrupt can be inserted. and wait for the start. The start of the timer is determined by the input of the J1ijMf child or H.
When the signal reaches the H level (when there is a zero-crossing H input) (step 103), if the signal does not reach the H level, the loop of step 103 stagnates. Although not specified in this flow, it is also possible to detect an abnormality by detecting that this loop has been passed for a predetermined period of time or more. When there is a high level input (H input) of the zero cross signal, the process moves to step 104, the internal timer (100m degrees) set above starts, and the internal memory flag (F
/zero detection) Set all. This is i NT i? i
It is set when the i5 child (or J1 terminal) is ). The flag 17 frequency shown in step 105 is a flag that is set when 100 m5ec has elapsed after the above-mentioned timer ends (when an internal interrupt occurs), and is not set at this time because no interrupt has occurred. Thereafter, from steps 106 to 110, each time the iNT terminal changes to the H level, the memory is counted up in steps 109 and 110. Normally, during IQQrlsec, 9 zero cross signals are counted at 50 Hz, and 11 zero cross signals (g) at 60 Hz.Therefore, when the internal timer finishes counting and the first zero cross signal rises, the interrupt shown in Figure 13 f is generated. The program starts, determines whether the flag 27 frequency is 1, and if NO in step 301, sets the flag 27 frequency in step 402, then steps 403
Internal interrupts are disabled at step 40d1.405, and a determination of 50/60 Hz is made based on whether the content of the memory storing the count value is greater than 10. That is, when the memory is not 10, it is determined that the value is 50 l-1z, and the flag F/ of 50 Hz is set in step 406.
It sets 50 Hz and returns to the original flow, and if not, it returns to the original flow as it is. In the subsequent step 70-, the process moves to step 113. Steps 77 and 113 and 114 turn on the ut source. The initial state of the device, such as bias switching, is set. In step 115, the thermistor THI input to the A1 terminal is set.
A timer is provided to read the stable value of the detected value. This device controls the halogen heater H1 by A/D converting the signal from the thermistor T I-11, so step 1
16 reads the signal of the thermistor THI, and this signal f
+&, step 12o. Step 121. Step 122. In step 123, it is set. No change, 14 at step 117
If a temperature below 5°C is detected, step 120
Go to and set a 2 second timer. Here, the minimum total liquid flow time for the halogen heater 11 is set in 1, and if YES in step 118, that is, the detected temperature is 145'O<T<155°C.
In this case, the process moves to step 121, and a flag F/145 indicating that the temperature is 145° C. or higher, a flag F/145 indicating that there is no disconnection, and a 2-second timer (minimum full-wave energization time) are set. , and if YES in step 119, that is, 155'C<T<165°C, step 1
At step 23, set the flag F/145, the flag F'/Ier line, and a 1-second timer (minimum full-wave energization time). 16
If the temperature is 5°C or higher, step 119 to step 12
Go to 2 mi flag F/145. Flag F/...F line, flag F/1 which means weight release. Set s5, and then set the maximum continuous energization time of 1 cycle on/J cycle off with the 20 second timer.After this time, if there is continuous energization to the heater H1 for 20 seconds or more, an interrupt will be generated. The program counts up the 20 second timer and sets the flag F/AUTO. (Step 31
1) and step 315. In step 316, it is determined that the temperature control is abnormal. At this time, the display 46a oscillates E and 0, and the JAM lamp 48b lights up, indicating that the drive circuit including the thermistor is abnormal. Next, check the paper ejection sensor Q3 as an initial input check, and if it is in the ON state (paper detection), step 12
4 to the flowchart in Figure 13 e) Enter 7-B and JAM
The lamp turns on at full power. In other words, the main motor is set to 0FF.
L, te (step 240) Jam flag F/JAM'
& Seriton (step 240-1), after setting the pressure cycle wtHV all 01lI'F (step 24 (12)), set the jam lamp 4sbff:oN (step 240-3). This jam lamp is set at 0.6 sec intervals. This is the one that frits crabs and detects the passage of 0.6 low (step 2).
40-4) Turn off the lamp, and when this condition continues for 0.6 cycles, turn on the lamp again (step 240-3).
) repeats the loop. After completing the above checks, in step 125 i N T
Side 11 of the device is started for each zero-crossing pulse that enters the quadrant. The device is equipped with a device that detects the lifespan of drums, etc.
When the drum finishes copying the fixed number of J9r sheets,
The detection in step 126 is activated, and step 129 is entered, where the life cycle is outputted to the segment display 46a by flashing at intervals of 06 seconds to notify the user. That is, the data key is stored in RAM which stores the data for display (step 129-1), and it is turned on for 0.6 seconds (steps 129-2 to 129-3), and then step 129
-4. At 129-5, blank data (
By storing all the data (no data displayed on the table) and holding it for 0.6 seconds 1.1 cycles fm,
Point r) rM. If the life detection does not work, the process proceeds to step 127 and the normal sequence is plowed. Copy ON or NO for mainland flow
is determined, and control of the drive system, etc. is activated when the copy is turned on.
11, the temperature open side of 11i-1 (temperature control) and the display measurement value are performed in an interrupt flow. Note that the interrupt timing is the rise of the zero cross signal. I will proceed with the explanation of the main flow. 1. When copy switch 47-e'eON is turned on, copy flag F/C0PY is set, so copy is turned on.
Then, the process proceeds from step 127 to step 12, and jam detection is disabled (JAIVI kill: After determining whether the switch is ON or not, the process proceeds to step 130,
Main motor M1ON, document platen stop solenoid S L
10 FF (When the main motor is ON and the document table stop solenoid is OFF, the document table moves forward.) 't'Lt to stop the paper out display (display P's 7 litsker)
ri, no change if there is no P oscillation), exposure lamp L
A1 ON, high voltage circuit HV ON. The process then proceeds to step 131 in FIG. 13, where it is checked whether manual paper feeding is being performed depending on whether the manual feeding flag F/SHEET COP Y yj has been set. This flag F/S HE ET COP
In the case of hand-held copying, Y is set in step 363A of the flow including νj1j in the 13th diagram. In the case of cassette paper feeding, in step 132 the cassette paper feeding solenoid 5L is
301'e is turned ON and a timer (timer based on zero cross No. 5) is activated, and when an overflow occurs, the cassette paper feed solenoid 5L301t-OFF' is turned OFF. This is done in step 380 of the OFF of S L 301 and the timer count Vi interrupt flow. That is, in step 380-1, the value is subtracted from 11α, which is set to m where the zero-cross pulse occurs, and when it overflows in step 380-2, the flag F/PLONI is reset and the cassette paper feed flange 5L301 is set to Cl″F. Yes. Manually feeding paper to - is performed in steps 361 to 367 of Figure 13 of the standby flow before copying is turned on.
The interrupt is processed in step 363, and the paper feed sensor Q2
When it turns ON, the above flag F/ is turned on in step 363A.
5i (Set EETCt>PY and turn on the manual paper feed solenoid SLJ flag I" / S E P L
and setting the manual paper feed timer, and subtracting the timer in step 376A, and step:
(If the timer is ON at 76A-1, step 376
In A-2, execute the flow of turning on the manual feed solenoid SLd. Next, in step 134, a pre-rotation timer is set. Here, first, in steps 405 and 406, the discrimination result is stored in the flag F/50 Hz, so 50/60 Hz is discriminated, and based on the result, when it is 50 klz, n I is determined according to the frequency. Kb
601 (z), the timer clock value is set in n2.As a result, the timer that counts zero-crossing pulses and measures the time is set to a nearly constant time regardless of the frequency (iJ). .And Hara 41", 1
The timer is longer than the time it takes for the document table to come from the table Back to the start position (for example, in Figure 11 VC, the time the document table comes from 81'! g in Figure 11 to the 11th digit in Figure 11). Constant detection timer) in step 13
5, and if the timer overflows and C does not reach the start position, set the document platen Back.
There is no timer setting that outputs an abnormality. Note that unless otherwise specified as an internal timer, the timer measures the number of zero-cross pulses t-it. Said, the two timers work in parallel and the two sensors M at the start position or steps 138, 139
S3. When detected by MS4, that is, first MS3
() LP, BP- (=nsa) are turned on, and MS
When 4 (registration sensor) is turned on, it is determined that the start position has been known, and step 14
At 0, the above document platen stop PL (document platen stop solenoid SLI
) to stop the document glass. In step 141, the timer for the previous rotation is checked; if the previous rotation is not long enough, step 138 is entered and the above operation is repeated. In step 137, the sensor Ms3. If there is no detection by Ms4, it is determined that there is an abnormality on the original platen based on the flag F/OP i'' OUT.In other words, step 137 is for detecting an abnormality on the original platen when the original platen is not at the start position. The flag F10PT OUT is reset in step 381 when the timer set in step 135 overflows. As described above, when the previous rotation is completed and the detection in steps 138 and 139 is OK, the process proceeds to step 142. In step 142, a judgment is made as to whether or not it is manual copying, and if it is manual copying, the document table moves forward in steps 159 and 160. (Described later) If it is not manual copying, flag ■1 is set in step 143. / Assuming that the cassette is reset, the presence or absence of paper is checked using the paper feed sensor Q2 in step 144. If the transfer AA' t B1. If so, in step 145, the source 4 high ground abnormality detection timer changes to the paper feed port delay timer and waits for the transfer paper to be detected at up 1 of the timer.If it is sensed before this time up, the process goes to step 159, but the timer is not detected. If not, in step 146, it is determined that no paper is detected, and the flag F/no paper is set, and the process goes to (6-B) to stop the apparatus after performing the post-rotation.During this time, it is determined that there is no paper, and step 328 of the interrupt flow
, 331, the display unit executes a blinking display of l-1. If transfer paper is detected, the process proceeds to step 159, and after turning off the IQ fukuoki table stop solenoid 5L1f, in step 160, the document platen advance PL (SL2) is turned on, and the document platen moves from the start position to the Back position.
A timer (6.3 to 7.5 seconds) that is larger than the time it takes to move to position n (for example, in Figure 11, the time it takes for the document table to move from position C in Figure 11 to position 1 in Figure 11 f).
Set and different? (Step 161)
). In Step 62, this original width base abnormality is checked, and if an abnormality occurs, step 16 is performed after (5-E).
Step 4 turns off each drive section, and displays "E" in step 164.
-1 for the time set by the timer, and 92" for the time set in step 164-2 to indicate the oscillation of E.2 on the display 46a, and turn on the jam lamp in the interrupt flow. In step 166, it is detected that the HP-BP sensor MS3 is OFF, and in step 167, if it is determined that it is manual paper feed 1~copy, then rat, in step 168, the manual feed solenoid 1/noid i, -ON L, step l When the registration position sensor MS4 is ON in step 69, it is determined again whether manual copying is being performed or not7, and when manual copying is being performed, the registration shirt tongue renoid SL3 is immediately turned ON.
Otherwise, after a delay of 10 m5 ec, the resist shirt tanlenoid SL3 is turned on (step 170). This is to correct the slight deviation of the registration due to the difference in the waiting posture of the paper depending on the path of the paper to the registration shutter 7. Further, in step 171, the bias switching circuit B1 is turned on to 0N16, and when this is turned on, the bias for one image is switched to one for forming both images. Next, in step 174, the sensor/cyst SW (registration position sensor IVIS4) is set to detect OF"F.
J 噌"F" I/C 2°If it is, turn off the registration shutter solenoid SLa, turn off the manual paper feed solenoid 5L4Th (operates only during manual copying), and set the flag F/REG to 1? a-Seven counts (step 175). Next, in step 176, detection is performed by the discharge sensor Q3. From this point on, the next H, -P, 5W (HP, BP sensor M
S3) The delayed accumulated JAM is checked until the ON (step 176-1), and then the above fe4:lAJ
iR5 next registration position sensor MSll ON
Delayed JAM is checked up to (step 191). In step 176 the flag F/discharge is delayed JA
If there is no M, then step 203 for continuous copying.
4 plus 1 step 204, and it is not set at the initial time (first copy), so step 17
6A, and in this step 176A, the paper ejection sensor-Q3
When it is turned off, it is detected that there is no delayed jam, and the flag F/discharge ■ is set. If the flag F/discharge is set, step 176B is entered, and only when the OFF state of the discharge sensor Q3 is detected, the flag F/discharge is reset, and it is detected that there is no accumulated JAM. and step 176
-1, when H, P, and SW are turned on, the reverse position and the value 1υ"
Then, the document platen advance solenoid SL2 is turned OFF and reverse movement begins, but if the flag F/discharge is set in step 178, the document platen advance solenoid SL2 enters (7-B) as MJAM and stops the device. When there is no retention JA IVi (when flag F/discharge is reset in step 17B), step 179 is entered and flag F/S is reset.
Only when HE ET COP Y is not set, the display is turned off by one in step 180, and when it becomes 0 in step 181, the flag Ii'/ST is set.
One let of OP and execute the stop sequence. Step 18:3 is the setting of a reverse abnormality timer, and the same thing as step 135 is performed. Flag F/ST
When the OP is not set and the J set paper is fed, the cassette paper feed solenoid 301 is set. (Step 186) Then the register in step 191) The slow g'JAM check continues in step 189 until SWMS4 is turned on.
(In SUB/JAM in step 189, the same control as in step 176 in FIG. 13B is performed.) If no delayed jam has been detected by the 4-hole paper sensor Q3 in step 176, the flag F/discharge ■ is set. Therefore, JAM will not occur even if the sensor Q3 is turned off. When the register SW is turned on in step 191, the bias switching circuit BleOF'F is turned on in step 192, and the current ('J bias is set to a non-moving state. In step 195, the above-mentioned delay JAM check is performed, and the delay Since there is no JAM, the flag F/discharge ■ is reset in step 196.Next, the register 5WOF'F is detected in all steps 198.At this time, in step 201
If the flag F/S T OP is not set, go back to the beginning (4-Jl) and (5-B) and repeat the above steps. If the flag F/5TOP is set, set the original platen. (step 205),
Enter backward rotation. At this time, the flag F/Gee disabled is reset to permit key manual power (step 206), and a mendome jam timer at the discharge port is set (step 207-1).
, and furthermore, when cassette copying is performed, an operation is executed to return the display to the initial set number of copies (step 209). Thereafter, when the transfer paper is discharged from the discharge port in step 214, the high voltage circuit H is turned off in step 221, and the idle rotation (backward rotation) is actually turned off in steps 222 to 224. Post-rotation execution, step 22! Stop the main motor in step 1-3, and turn on the halogen lamp ff in step 230:
Q li' F. And after 02 seconds (step 231
), in step 232, the document platen stop solenoid SLI is turned O.
F I" and enters standby state. The tr'J included flow is executed by the rise of the zero-cross pulse at the iN'L' terminal when no abnormality is detected while the main flow is flowing. Step 402 ~Step 4
06 is a flow for detecting the '1 warm wave number at the initial stage using an internal timer interrupt as described in 7 above. At step 302, the flag F/145 is set at the first 1υ.
It is checked whether or not it has been set, and if it has not been set, the process moves to step 303 and the halogen heater H1 is turned on. At step 304, the flag lL'
/ Check the initial 2 seconds, and if it is not set, proceed to step 342, and decrease or increase the timer set in step 120 or 121. and step 3
At step 43, flag F is set to check whether the timer has expired or not.
'/Check AUTOf. If the timer has expired tL, step 344 has VC4'4;
Check the flag F/145, which is set when the detected temperature of the thermistor is 145 "C or higher". Step 3
If the flag F/145 is set f' at 44, then (1
-B) (7, Set 11, if not, set flag/initial 2 seconds in step 345. Then, in step 346, reset flag F/AUTO, which is reset when the timer starts, and step In step 347, the disconnection detection timer (9 seconds) is activated and the process moves to (1-C).In step 305, it is checked whether the current temperature is 145°C or higher. If so, step 30
The process advances to 6, flags F/145 and F/155 are set, and the wait is released. Furthermore, after the flag F/160 is set, the energization to the halogen heater H1 is controlled by 5UB in step 361 in the standby state.
H, C, and during copying, S U B H in step 369
This is done in C. For 5UBHC, 185°C is the point, and when the temperature is below 185°C, turn on/off for 1 cycle.
l cycle off intermittent mTtt is performed, 185°
If it is above C, the halogen heater H1 is turned off. In step 307, a timer (20 seconds) is set to detect energization abnormality after the weight is released, and in step 308, the flag F/AUT O'& is reset. . Then, in step 309, flag F/disconnection is set, and the process moves to step 310. In step 310, a flag F/heater OF is set when the halogen heater H1 is off.
Check F'e, if not set, step 3
The timer set in step 11 is decremented. Returning to step 305 again, if the current temperature is not 145°C or higher in step 305, the process moves to step 312 and the flag F/OFF? S. Check everything. If the flag F/disconnection is not set here, the process advances to step 313 and it is determined whether the current temperature is 70'0 or higher. If the current temperature is 70° C. or higher, the process moves to step 314 and sets a timer (30 seconds) to detect abnormality in energization, and then, in step 309, flag F/disconnection is set. This timer is decremented in step 311. If the current temperature is not 70°C or higher in step 313, the timer set in step 347 is subtracted in step 313AIC, and the 7-lag F/AUTO
Check whether or not is set. Step 3
If the 7-lag F/AUT O is set in step 15, the disconnection detection timer in step 347 is set for 9 seconds (
'i! Since it has worked for 11 seconds after the power was turned on, it oscillates E and 0 in step 316 and outputs an abnormal output. If the flag 1"/145 is set in step 302, the process goes to step 340 four times and determines whether the flag F/155 is set. If the flag F"/155 is set. (3-A)
Move to. If the halogen heater is not set properly, turn on the halogen heater in step 341, and in step 342,
The timer (up to 1 second/
2 seconds). If the flag F/heater Oli' F is set in step 310, the process proceeds to step 317. Step 31
In 7 to (2-A), during the wait, the segment display 46a performs 'fc' on the 4th oscillation of "1", and when there is no paper, the paper λlit:L is displayed (P oscillation). In this case, the 1" oscillation, which is the wait display, and the "D" oscillation, which is the paper out display, are not performed at the same time. In other words, the flag F to set no paper/no paper is set. It is checked in step 317 whether or not it is set, and if it is not set, it is checked in step 318 whether or not the wait is canceled.If the wait is canceled, the VC advances (2-A).Also, if there is no paper , or if it is waiting, check whether the flag that controls the timer that controls lighting is set or not (step 319), and if it is not set, the flag li' / is set in step 320.
WA i T Set the timer. Then, in step 320-1, it is determined whether the flag F/no paper is set or not (7; if it is set, step 32
Proceed to U-3 and set a 0.6 sec timer. - Also, if the flag F/out of paper is not set in step 320-1, the thermistor T is set in step 320-2.
Full judgment as to whether the temperature detected by the RI is 70'O or less [5. If it is 70'C or less, a 0.6 temperature timer is set in step 320-3. If the detected temperature is not 70'c or less in step 320-2, the process proceeds to step 320-4, and the detected temperature is 1.
Determine whether the temperature is below 00°C. If the temperature is below 100°C, the process advances to step 320-5 and a 0.4 sec timer is set. If the detected vortex is not below 100°C, the process proceeds to step 320-6, where it is checked whether the detected temperature is below 120°C, and if it is below 120°C, it is 0.2°C.
Set all sec timers, otherwise u O, l
Set all sec timers, and step 321
In this case, 17 is subtracted from this timer set value every time a zero cross signal is input. When the time elapses, the process proceeds to step 325 or step 326 according to the swoop 3240 determination result, and a blinking P (0.6 seconds) is displayed on the segment display.
interval) or one blinking display sound according to the detected temperature. Step 348 of (2-A) is a step for constantly storing the input state to the microcomputer Q203 in the memory of the microcomputer, and thereafter this memory is used for controlling the device ^' as necessary. In steps 349 and 349-1, a memory check is performed to see if a key is to be accepted.When a key is accepted, it is not during copying including forward rotation (excluding backward rotation). Further, in this example, the weight is divided by 3%, and input from each key is not accepted. Step 35
0 to 350B is a flow in which the number of copies is automatically incremented by the timer in step 350A when the + key 46b is continuously turned on. Step 351 is a check to see if the + key 46b is set, steps 352 and 353 are to check the - key 46c, and step 354 is a check to check the clear key 46d. For example, when the + key 46b is pressed, when it is determined in step 351 that it is the + key 46b, 1 is added to the answer in the display RAM that stores the previous display data.
Carry up if necessary and add the result in step 3
51-2 VC is displayed on the segment display 46a. In this segment display 646a, 1m data, for example, P:l? without paper? , and if there is another input while the display is being performed, the display data at step 1 is reset and new data is displayed in step 351-2. - When the key 46c is pressed, step 353 is performed in the same manner.
1'(i- The data subtracted through step 351-
This is what is displayed on Kurata in 2. When the clear key 46d' is pressed in step 354, 1, display RA IVI
Set the self-answer of (2) to 1, and display this step: (55).When displaying this, also use Table 2j in the mixture (reset the data (7 to display 1). H'A Device f:i's heater control is due to the characteristics of the drive+101 circuit of the A halogen heater II l, which turns on the halogen heater Hl by manually synchronizing the triac gate FCl/rega pulse with the zero cross pulse. , when the NOTSUTATA ROGEN heater H1 is ON, 1.Off after a predetermined timing, FIICL must be 6 dimensions.In step 356, the NOTSUTATA ROGEN heater H1
This is to turn it off when it is on. In step 360, the size V of the copying force λ
Step 36
In the steps after step 1, the key human power etc. check force of sequence ill lo1 means is performed. In this device, if a jam occurs in the sequence, the flag force of F'/JAM is set to 51 and 1. . Then, in step 368, the flag force) is checked, and if there is a jam, the flag is 1! In the I-included flow, further imprinting is prohibited, and the heater OF for ', jfr light lamp is
F, the jam lamp is turned ON (this ONk is a static ON, not a single flicker). In step 7'369, heater control is performed, and 185°01tiQ is known to perform 1iii control of turning the heater on for one cycle and turning it off for one cycle. In step 370, it is determined whether or not to copy a sheet, and in the case of a sheet copy, from step 370A to step 377, the paper feed sensor Q2 is checked and the feed solenoid SL4 is operated. is executed. That is, when the paper feed sensor is turned on, it is detected whether the manual paper feed plunger has been driven for a predetermined time at t, and if it has been driven for a predetermined time, the process proceeds to step 377, and if not, the process is stopped. After this, it is determined whether there is an overflow or not, and by repeatedly going through this loop, the manual feed solenoid S L 4'f: O
N, and it takes a total of one step to send the transfer paper. However, if the manual feed paper seems to have been forcibly pulled out by the operator, the process proceeds from step 370A to 475, and before the predetermined time IMJ has elapsed, the manual paper feed solenoid SL4 is activated in step 375-1. 01
i'F is used to stop paper conveyance. This can prevent unnecessary operation of the device. From Step 3F1 onwards, the copy key 47e, stop key 46d, etc. are checked during cassette paper feeding; 1bee, and the display of the keys is manually operated. In other words, when the stop key 46d is pressed, steps 373 to 3
74, the display changes to 1 in step 374, and then, when the copy key is turned on in step 371, the display changes to A.
The initial set value stored in RM■V is entered into the RAM, and RAIν1■ is displayed on the display (step 375).
A). In other words, the initial setting of 3-1 is restored. In steps 377 and 378, a decrease (↓)- and a time up (overflow) of the timer clock of the pre-rotation and provisional rotation bones are checked. Note that in step 378, the flag F/AUTO is set when the count is up. Steps: 379-380, cassette 5 paper solenoid SL
:U01-0 The subtraction of the timer clock and the time up are checked, and after the time is up, the cassette paper feed solenoid is turned OFF. In steps 381 to 1-E, the timer of the document table outer shrine operates and is checked. Handling: Return to (1-E) and repeat the above operations. [Effect] As detailed above, according to the present invention, the temperature state of the device can be easily notified without using an unnecessary display or the like. Therefore, the configuration of the apparatus is completely fixed, and it is not only easy for the operator to use, but also provides an inexpensive recording apparatus.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a copying apparatus to which the present invention is applied, FIG. 2 is a sectional view of the copying apparatus shown in FIG. , upward view of the do part,
b is a display provided on the main body) 16, FIG. 4 is a control circuit diagram of the copying machine shown in FIG. 1, FIG. 5 is a signal waveform diagram at each part of FIG. Waveform diagram, b
is a signal waveform diagram on the signal line 82, FIG. 6 is a signal waveform diagram on the signal line S2 of Figure 4, where a is a 50 Hz waveform diagram, and b is a 4n waveform diagram of 60 Hz. Figure 7 shows the A6 waveform diagram during an abnormality, a is the signal waveform diagram on A, No. 4 Sl in Figure 4, b is the signal waveform diagram on the signal line S2, and Figure 8 is the signal waveform diagram on the No. 4 Sl in Figure 4. Fig. 9 shows the input signal waveform diagram of the iNT terminal and the output 1 of the output terminals R11, R12, and R13 in Fig. 4. 10 is a diagram showing the relationship between the output terminal of the control section and the moving parts in FIG. 4, FIG. 11 is a diagram showing the arrangement of the cam and the operation of the microswitch, and FIG. 12 is a diagram showing the relationship between the output terminal of the control section in FIG. Diagrams for explaining temperature control in Figures 13a to 1
Figure 3 is a control flowchart. Here, 1 is a document placement table, 3&i photosensitive drum, and 7 is a register χ
Toshisha starter, Q2 is paper feed sensor, Q3 is paper ejection sensor, T
l-11 is the thermistor, R1 is the norogen heater, LA
I is a halogen lamp, 10a is a fixing roller, 11 is a paper ejecting roller, SLI is a document platen stop solenoid, SL2-Hara Yudai advance solenoid, 5L3U registration shutter solenoid, S L: (01 is a cassette paper feed solenoid, Ml
is a motor, 46a is a segment display, 46b, 46c
46d is a copy number setting key, 46d is a clear/stop key, 47e is a copy key, 48a is a power lamp, 48b is a jam indicator, and Q203 is a microcomputer. Applicant Canon Co., Ltd.

Claims (2)

[Claims] (1) A recording apparatus characterized in that it has a display means for displaying the number of sheets to be recorded, and the display means performs a blinking display until the apparatus reaches a predetermined state. (2) The recording device according to claim 1, wherein the blinking interval of the blinking display is changed as the device approaches a predetermined state.