JPS5967767A - Storage device - Google Patents

Abstract

PURPOSE:To attain automatically new recording, by detecting the jamming of recording media, when the jamming of recording media takes place because of delay in the information recording start signal and because the signal is not reached. CONSTITUTION:When a picture write start signal IVSINC2 signal 35 is inputted, a resist roll 6 is driven, and a recording information generating section 1 outputs the picture information VIDEO2 signal 37 for attaining the recording. A timer A is started from a recording section 3, when a recording paper reaches an ITOP position, and non-input of the IVSINC2 signal 35 is monitored. When the signal 35 is not inputted for a prescribed time or over, an IVSCER signal 56 is turned on from a CPU40, the generation of abnormity is informed to a recording information generating section 2. In this case, the recording is attained on the residual paper, then a drum and a carrier motor 44 are turned off by discharging the paper other than the unprinted paper to the outside of the recorder, a recording start permitting signal IPREB signal 47 is turned on and the recorder can print when the IPRNST signal 33 is inputted.

Description

[Detailed description of the invention] Technical field The present invention relates to a recording device that records information on a recording material.

Prior Art Recording Material For example, when recording information created by a recording information generating unit in a recording device that records information on paper in the recording unit, the recording unit issues records other than the supply start command and the recording material. A method of controlling conveyance.

2. There are two methods: a method in which recording and recording material conveyance are controlled in a recording information generating section.

In the method (2), the recording information generation section has one or more page memories, and (2) a supply start command is output when recording information of recording material recording session or more is stored in the memory, and an information recording start request is sent to the recording section. Start recording information transmission. On the other hand, 2
This method is applicable when the memory capacity is small or when information is transmitted while sequentially creating recorded information. In this case, if the information recording start signal is not input to the recording section, such as when the recording information cannot be transferred into the memory after the recording information generating section outputs the supply start command, the recording material remains in the recording device. Since the recording procedure is not completed, a new recording cannot be made unless the recording material is removed. Another disadvantage is that the recording material supply procedure must be carried out from the beginning.

No. 9 The present invention aims to eliminate the above-mentioned drawbacks, and the present invention detects recording material retention when recording material retention occurs due to a delay in the information recording start signal or the failure of the signal to arrive in the recording apparatus.
The purpose of the present invention is to propose a recording device that can automatically record new information and also shorten the supply time.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

This embodiment is an example of a recording apparatus using the laser beam printing method I, and a cross-sectional view of this recording apparatus is shown in FIG. A laser beam 11 modulated by a recording signal is irradiated onto a primary charged photoreceptor, such as a photoreceptor drum 10, to form a latent image, and this latent image is developed by a developing device 4 to make it visible. The developed image on the photosensitive drum lO]2 is transferred onto a paper 12 by a transfer device 5, and the transferred paper 12 is passed between fixing rollers 8 to fix the developed image on the paper 12'2. After fixing, output tray 13
The recording operation for the 1/1 output paper ends. Here, 7 is a paper feed roller that feeds the paper in the cassette to the recording device.
Reference numeral 6 denotes a registration roller for correcting inconsistencies in the fed paper, and also has the role of adjusting the position of the leading edge of the image to be completed. FIG. 3 shows the process of writing information onto the photosensitive drum 10.

Here, the recording information generating section 1.2 generates an image signal to be recorded, and this signal drives the semiconductor laser 20 to generate a laser beam modulated by the image signal. The beam from the semiconductor laser 20 is deflected by a scanner 21 and then imaged by a lens 22 to expose the photosensitive drum 10. In order to synchronize the laser beam scanning the photosensitive drum 10 with the image signal, the beam detector 23 detects the beam position immediately before the laser beam scans the photosensitive drum 10. The signal detected by the beam detector 23 is referred to as a beam detect signal (hereinafter referred to as BD multiplied signal).

The signal is transmitted to the ED double signal recording information generating section 1.2 for horizontal synchronization. FIG. 4 is a block diagram of a recording device equipped with a switching means in the recording section 3. The changeover switch 39 in the recording section 3 sends information 30 to 37 from the recording information generating sections 1 and 2.
Among the signals 51 and 52, only the signals sent from the valid recording information generating section are outputted from the selector 38. The selector switch 39 also selects a mode (ITO
It is also a switch for changing the mode (I VS I NC synchronization) based on the image writing start signal (hereinafter referred to as the I VS I NC signal) output from the recording information generation section. . FIG. 5 is a block diagram of a recording apparatus in which the recording information generating section has selection means such as a changeover switch, and the MODIN signal 61 is connected to the selector 38.
is input to the CPU 40. This MOD I N signal 6
1 performs the same operation as the signal of the selector switch 39 in FIG. Figure 6 shows the recording section 3 and the recorded information generating sections 1 and 2.
COM is a block diagram of a recording device when it has switching means.
The IN signal 62 and the COMIN switch 60 are each M
A permission signal indicating whether or not to enable the OD I N signal 61 and the input signal of the changeover switch 39, and the COMI
If both the N signal 62 and the COMI N switch 60 are enabled, the CPU 40 outputs the priority switch signal 58.
is input, and this signal controls the input signal 54 to the selector 38 in order to enable the signal to which 1f priority has been given. If only one of the COMIN signal 62 and the COMIN switch 60 is permitted, the CPU 40
controls the input signal 54 to the selector 38 by the enabled signal. COMIN signal 62 and COMIN
If both switches 60 are not enabled, a priority mode is determined in advance, and the CPU 40 controls the input signal 54 to the selector 38 so that the priority mode signal is in effect. It is also possible to make the signal indicated by the priority switch 58 valid. In this block diagram, priority 4
The M switch 58 is located in the recording unit 3, but the switch 58 is located in the recorded information generating unit 1.2 and is recorded as a signal 81.
(Even if it is transmitted within 3, the same control procedure will be used. VI
Either one of the DEO1 signal 36 and the VIDEO, 2 signal 37 is selected by the selector 38 and the semiconductor laser 20
It becomes the input signal to. Here, the drum clock signal 42, which is a human input signal to the CPU 40, is generated by the rotation of a gear-shaped plate 15 attached to the photosensitive drum 10 shown in FIG. This is a signal generated when the gear is blocked at the peaks and detected at the valleys. Here, ITOP signal 46, I
PREB signal 47, I READY signal 48, BD signal 49, I PREND signal 50. Each signal of the IVSCER signal 56 is a status signal indicating the state within the recording section 3, and is sent to the recording information generating section 1.about.2.

The control method of this embodiment will be described below with reference to control flows and timing charts. The following control methods will be explained with reference to FIG. 4 since they are basically the same as those shown in FIGS. 4 to 6. Here, the recording information generating section 1 is in the ITOP synchronous mode, and the recording information generating section 2 is in the ITOP synchronous mode.
Set to SI NC synchronous mode.

The operation timing in the ITOP synchronous mode is shown in FIG. 7, and its control flowchart is shown in FIG. 9.

This will be explained below with reference to FIGS. 7 and 9.

The recording section 3 outputs the IREADY signal 48 when it is ready to start recording (step 101), and the recording information generating section 1
inform that it is operational. When the recording information generating section 1 attempts to start recording, when one page of recording information has been stored in the memory of the recording information generating section 1, the recording section 3 starts recording.
After confirming that the IREADY signal 48 is turned on, the IDRMSTI signal 30, which is a drum rotation command, is output to the recording section 3. In the recording section 3, when the IDRMSTI signal 30 is input, the IREADY signal 48 turns ON and if there is no abnormality in the recording section 3, the drum conveyance motor 44 is driven through the driver 43 (step 104).

At the same time, after controlling the potential on the photosensitive drum 10 and completing preparations for starting recording, the CPU 40 outputs an IPREB signal 47, which is a recording start permission signal, via the driver 45 (
Steps 105, 106). The recorded information generating section 1
I PRN waits for the output of the PREB signal 47, instructs the recording unit 3 to feed paper, and starts the copy sequence.
The ST signal 32 is output (step 107). Recording section 3
When the IPRNST signal 32 is output, the copy sequence is started, the IPREB signal 47 is reset, and the paper feed roller 7 is driven to start paper feeding (step 10).
8). In this embodiment, the rotation of each roller in the paper conveyance system shown in FIG. 2 is synchronized, and the drum clock signal 4
2 determines the absolute position of the recording paper. Here I
The PREB signal 47 is automatically set after a certain period of time has elapsed since the fed paper has come out of the paper cassette. The leading edge of the fed recording paper reaches the laser writing start timing position 16 (
2), the CPU 40 outputs the ITOP signal 46 to the recording information generating section l.

There are two cases in the laser beam irradiation position 17 (laser writing point) and the transfer start point 18 on the recording paper (drum surface and recording paper). Case A: If the distance between 17 and 18 is shorter than or equal to the distance between the center of the registration roller and 18, then (distance between 17 and 18≦Registration I/Center of roller 6 16 and 18) Case B: When the distance between 17 and 18 is longer than the distance between the center of registration roller 6 and 18 (distance between 17 and 18 = distance between the center of registration roller 6 and 18 + center of registration roller 6) and 16+?a) However, in this case, it includes the procedure of aligning the paper.

There are two cases.

When the recording information generator 1 receives the ITOP signal 46, the contents of the internal recording information storage memory (page memory) are
The image is recorded by inputting it to the semiconductor laser 20 through the DEO1 signal 36 (in case A, steps 118 and 1
19, steps 110 and 111 in case B). At this time, in case A, the CPU 40 causes the paper to curl sufficiently at a predetermined timing before outputting the ITOP signal 46, stops the paper feed roller 7 through the driver 43, and simultaneously drives the registration roller 6 (steps 116 and 117). .

In case B, after outputting the ITOP signal 46, the CPU 40 causes the paper to curl sufficiently at a predetermined timing, stops the paper feed roller 7 through the driver 43, and simultaneously drives the registration roller 6 (steps 112 and 113).

When the image recording is started in this way, the CPU 40 calculates the image recording time for one page using the paper size signal 55, and when the image recording is finished, the image section end signal IFREND is sent.
Output the signal 50 through the driver 45 (step 1
14, 115, 120), this: The image recording time is calculated by counting the drum clock signal 42. Counting of the drum clock signal 42 is performed by interrupt processing (step 121).

Next, the case of IVS I NC synchronization mode will be explained with reference to FIG. 8 for the operation timing and FIG. 1O for the control flowchart. Case C explained below is the case A mentioned above.
Case D is also in the same positional relationship as case B described above.

If there is no abnormality in the recording unit 3 and the recording can be started, the IR
The EADY signal 48 is outputted to inform the recording information generating section that the recording information generating section is ready for operation (step 131). When the recording information generating section 2 attempts to start recording, it outputs the IDRMST2 signal 31 to the recording section 3 to start the recording operation.

In this case, it is not necessary to have memory for one page (page memory) in the recording information generating section as in the ITOP synchronous mode, but it is necessary to have a line buffer for several lines and record new data while transmitting image information to the recording section 3. It is sufficient to write one scan's worth of information to the line buffer before the entire line buffer becomes empty. Here, the recording unit 3 is IDRMST2
The operation for signal 31 is similar to that for IDRMSTI signal 30 described above. (Steps 104, 105,
106 corresponds to steps 134, 135, and 136). The recorded information generating section 2 performs the I PRNST in step 107.
The I PRNST2 signal 33 is output to the recording section 3 under the same conditions as the I signal 32. The recording unit 3 determines whether or not recording paper is being fed into the recording device at the time when the signal 33 is input, and if the recording paper is not staying in the recording device (step 137b), the paper feed roller 7 to start paper feeding, and at the same time, the I PREB signal 47 is turned 0.FF (step 138). I PRNST2 signal 33 If the recording paper remains in the recording device at the time of manual power, that is, ■VSCE
If the R signal 56 remains in the recording device, that is, I
If the VSCER signal 56 is ON, the process proceeds to step 137c shown in FIG. 10, and the IVSCER signal 56 is turned OFF. In case C, the paper is stuck at the ITOP position, so step l594. :Proceed to the input wait sequence for the IVSINC2 signal 35. In case D, since the paper has already advanced beyond the ITOP position and the leading edge of the paper is at the registration roller 6 position, timer B is set to a predetermined number and the process goes to step 146. Step 159 and Step 146
From then on, the sequence described below will be followed. When the IVSCER signal 56 is ON and the IPRNTST2 signal 33 is ONL, the paper is advanced from the ITOP position in both cases C and D, so the IVSINC2 signal 35 and VIDEO2 signal 37 can be output immediately. Said ITOP
In the synchronous mode, the recording information generating section 1 outputs the ITOP signal 46 as an image information transmission request signal from the recording section 3, and image information is transmitted in response to the ITOP signal 46.

However, in the I VS I NC synchronous mode, the I VS I N which is the image signal output start signal from the recording information generating section
Image information is transmitted after 35 O3 signals. For this reason, the recording unit 3 uses the registration rollers 6 to adjust the image writing position on the recording paper.

The recording information generating section 2 must output the IVSINC2 signal 35 at a timing equal to or after the ITOP signal output timing in the ITOP cycle mode. If the image information is transmitted before the ITOP signal output timing, there will be a case where the entire developed image on the photosensitive drum 10'' cannot be transferred onto the recording paper. As a method for preventing this, there is a method in which the recording information generation section 2 outputs the IPRNST signal 33, and then outputs the IVSINC2 signal 35 after a predetermined period of time has elapsed, and then outputs the image information VIDEO2 signal 37, and a method in which the recording section 3 outputs the above-mentioned ITOP signal 46. (corresponding to steps 111 and 119 described above) is a method of notifying the recording information generating section 2 that the recording paper has reached the laser writing start timing position 16. The recorded information generating section 2 generates the ITOP signal 4 signal 4 edge? 'IVSINC2 signal 35 and image information VIDE
Outputs O2 signal 37.

Here, as with the ITOP synchronization, there are case C and case D, and the two cases will be described below.

In case C (the positional relationship between the registration roller, the laser writing point, and the transfer start point is the same as case A),
The recording paper arrives at the ITOP position [Step ITOP (
C)) Previously, the procedure is similar to ITOP synchronization case A.

(Step 116.

1 1 7 , 1 1 8 are respectively step 15
5.

156 and 157) When the ITOP position is reached, the registration roller 6 is stopped and the IV from the recording information generating section 2 is output.
Waits for SINC2 signal 35 (step 158), and IVSINC2 signal 35/+': When input, register roller 6 is driven (step 161) At the same time, the recording information generating section outputs image information VIDEO2 signal 37 to perform recording. Here, in the recording section 3, the timer A is activated from the time of arrival at the ITOP position to monitor whether the IVSINC2 signal 35 is not inputted due to a failure of the recording information generating section 2 or the like. IVSI
NC2 signal 35 is not input for more than a predetermined time and timer A
becomes T1 or more (step 164), the CPU 40
Then, the IVSCER signal 56 is sent to notify the ONL record recording information section raw section 2 of regular occurrence (step 165). However, in this case, it is possible to record on the remaining paper, so when the paper other than the undelivered paper is ejected from the recording device (step 166), the drum and conveyance motor 44 are turned off (step 167), and the process goes to step 136, where the I PRNST signal is output. When 33 is input, the printer is ready to print.

In case D (the positional relationship between the registration roller, laser writing point, and transfer start point is the same as case B), I
Since the TOP generation timing is when the leading edge of the recording paper arrives at an arbitrary position between the registration roller 6 and paper feed roller 7, the ITOP generation timing [Step I TOP (D
)), the CPU 40 calculates the time T2 until the IVSINC2 signal 35 human power is reached. (Step 1 4, 3). Ko. :l-te I VS I NC 2
If the signal 35 is not input by the timing when the recording paper stops the paper feed roller (steps 152 and 153), timer B
The count is stopped (step 154). This is because the recording paper does not move after step 153.

When the IVSINC2 signal 35 is input, the count of timer B is stopped and the recording paper is conveyed until the timing when the paper feed roller stops (steps 144 and 145). Said step 1
Steps 144 and 145 if passed through 52.153
does not perform any actual operation. At the paper feed roller stop timing, the recording paper is moved from the 16th position for 12 hours (timer B
(lr+) has already been transported, so this 1
After 2 hours (step 146), register roller 6
is driven (step 148) to align the leading edge of the recording paper and the laser writing start point on the photosensitive drum. I
If the VSINC2 signal 35 is not input even after T1 time has elapsed, the same processing as in case C is performed and the process returns to the start (steps 165, 166, and 167).

Counting of the drum clock signal 42 and counting of the timer are performed by interrupt processing (steps 168 and 169). Here, the timer uses a real-time clock, etc., which is an interrupt that occurs at regular intervals. Further, steps 162 and 163 in case C correspond to steps 120 and 115, and steps 149 and 150 in case D correspond to steps 114 and 115.

Further, in this embodiment, the case where recording is performed on paper has been described, but the material and shape are not limited as long as it is a recordable object.

When the information recording start signal from the effect recording information generating section is not input, a state in which new recording is not possible due to recording material retention can be avoided, and the number of times the operator takes out the recording material can be reduced, thereby saving the recording material.

Furthermore, since the recording material such as recording paper is supplied to the position where information recording can start, the supply time from the recording material supply start point to the position can be shortened.

[Brief explanation of the drawing]

Figure 1 is a schematic block diagram of this embodiment, Figure 2 is a sectional view of the paper conveyance system main body of the recording unit of this embodiment, Figure 3 is a block diagram of the recording unit showing the recording method, and Figure 4 is the main body of the paper conveyance system in the recording unit of this embodiment. FIG. 5 is a block diagram when the effective recorded information generating section selection means of the embodiment is located in the recording section. FIG. 6 is a block diagram when the effective recorded information generating section selection means is located within the recorded information generating section. A block diagram of the case where the generation section selection means is provided in the recording section and the recorded information generation section and is equipped with a selection priority function, ゛. Fig. 7 is a timing chart in ITOP synchronization mode, Fig. 8 is I VS I NC synchronization FIG. 9 is a flowchart in ITOP synchronization mode, and FIG. 10 is a flowchart in IVS I NC synchronization mode. Here, l, 2...recording information generation section, 3...recording section, 6...registration roller, 7...paper feed roller, 10
. . . Photosensitive drum, 40 . . . CPU in the recording section. Patent applicant Canon Co., Ltd.

Claims (2)

[Claims] (1) A supply unit configured to supply a recording material in response to a recording material supply signal from a recording information generating section, and a recording unit configured to record on the recording material in response to an information recording start signal, a residual means for causing the recording material to remain in front of the recording start position when the information recording start signal is not generated within a predetermined time after the occurrence of the first information recording start signal; A recording device characterized in that recording is performed. (2) The recording apparatus according to claim 1, further comprising means for notifying the recording information generating unit when the supplied recording material remains within the recording apparatus.