JPS5967778A - Recorder - Google Patents

Abstract

PURPOSE:To simplify the constitution of a recording information generating section and to relieve the load by utilizing a recording information output required without fail at the recording information generating section to start automatically the information recording sequence. CONSTITUTION:When an IDRMSTI signal 30 is inputted to the recording section 3 and an IREADY signal 480N detects no failure in the recording section 3, then a drum carrier motor 44 is driven through a driver 43. When the potential on a photoreceptor drum 10 is controlled and the preparation of recording start is finished at the same time, an IPREB signal 47 being a recording start permission signal is outputted via a driver 45. The recording information generating section 1 waits for an output of the said IPREB signal 47 and gives a paper feed command to the recording section 3, and when the IPRNST signal 32 is outputted, the copy sequence is started, the IPREB signal 47 is reset, the paper feed roll 7 is driven to start the paper feed.

Description

DETAILED DESCRIPTION OF THE INVENTION (I) Technical Field The present invention relates to a recording apparatus in which a recording section receives a recording information signal from a recording information generating section and writes information on a recording material using the signal.

(II) Conventional technology When recording the recorded information created by the recorded information generation unit in the recording unit, 1. A method of controlling recording material transport and paper transport other than the paper feed start command in the recording unit (page print method ), 2. A method (line print method) in which recording and paper conveyance are controlled in a recording information generating section.

Method 1 has one or more page memories in the recording information generation unit, outputs a paper feeding start command when the recording information on the recording material recording amount is stored in the memory, and starts recording in response to an image writing start request. Start transmitting recorded information to the department. 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, after the recording information generation unit outputs a paper feed start command, the recording unit outputs recording information when it becomes capable of recording.
A special means for generating a recording start signal in a recording information generating section is required, and the configuration is complicated.

(III) Purpose The present invention aims to eliminate the above-mentioned drawbacks by inputting a recording information signal that is absolutely necessary for the recording information generating section to the recording section, thereby automatically starting the recording sequence, and starting the recording. The present invention proposes a recording apparatus that realizes a configuration that does not require a recording start signal generation section of an information generation section, and that can simplify the configuration.

(IV) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

This embodiment is an example of a recording apparatus using a laser beam printing method, 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 photoconductor, for example, a photoconductor drum 10, to form a latent image.
This latent image is developed by a developing device 4 and made visible. The developed image on the photosensitive drum 10 is transferred onto the photosensitive drum 12 by the transfer device 5, and the transferred paper 12 is passed between the fixing rollers 8.
Fix the upper image. After fixing, the image is discharged onto the extraction tray 13 and the recording operation on the paper is completed. Here, 7 is a paper feed roller that feeds the paper in the cassette to the recording device, and 6 is a registration roller that corrects misalignment of the fed paper. It also has the role of adjusting the information. FIG. 3 shows the process of writing information to 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 IO. 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 BD double signal recording information generating section 1.2 for horizontal synchronization. FIG. 4 is a block diagram of a recording apparatus having a switching means in the recording section 3. Signals 30 to 37 and 51.52 are sent from the recording information generating sections 1 and 2 by the changeover switch 39 in the recording section 3. Among them, only the signal sent from the valid recording information generating section is outputted from the selector 38. The selector switch 39 also selects a mode (ITOP signal) based on a vertical synchronizing signal (hereinafter referred to as an ITOP signal) in which an image writing start request to the CPU 40 is output from within the recording section 3.
synchronization) or the V I DEOCLOCK signal, which is also the image writing start signal output from the recording information generator, -y
It is also a switch for switching between latch mode (VIDEOCLOCK synchronization). 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 MOD I N signal 61 is applied to the selectors 38, ! - input level to CPI40. , m(7)
The MOD I N signal 61 performs the same operation as the signal of the 9J changeover switch 39 in FIG. FIG. 6 is a block diagram of a recording device in which the recording section 3 and recording information generating section 1.2 have switching means.
pQ of whether the N switch 60 validates the MOD I N signal 61 and the input signal of the changeover switch 39, respectively.
: jjl signal, COMIN signal 62 and C
If both OMI N switches 60 are compromised, the CPU 40 manually outputs the priority switch signal 58;
This signal controls 21 the manual signal 54 to the selector 38 in order to validate the signal to which priority has been given. If only one of the COMIN signal 62 and the COMIN switch 60 is 81iifed, the CPU 40
controls the human input signal 54 to the selector 38 with the enabled signal. If both the COMIN signal 62 and the COMIN switch 60 are not enabled, the priority mode is determined in advance, and the CPU 40 inputs the input signal 5 to the selector 38 to enable the priority mode signal.
Control 4. It is also possible to make the signal indicated by the priority switch 58 valid. In this block diagram, the priority switch 58 is located in the recording unit 3, but even if the switch 58 is located in the recording information generating unit 1.2 and is transmitted as a signal to the recording unit 3, the same control procedure will be performed. VIDEOI signal 36
Either one of the and VIDEO2 signals 37 is selected by the selector 38 and becomes a manual signal to the semiconductor laser 20. Here, the drum clock signal 42, which is an input signal to the CPU 40, is generated when a gear-shaped plate 15 attached to the photosensitive drum 10 shown in FIG. 2 rotates as the drum rotates. This is a signal that is generated by being blocked at mountain areas and detected at valley areas. Here, ITOP signal 46, I PREB signal 47°I
READY signal 48. BD signal 49. Each of the IPREND signal 50 and the IVSCER signal 56 is a status signal indicating the state inside the recording section 3, and the recording information generating section 1.2
sent to.

The control method of this embodiment will be explained below with reference to the control flow and timing chart. 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 ITOP synchronous mode, and the recording information generating section 2 is in IVS
Set to INC 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 l
inform that it is operational. When the recording information tgt 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, it confirms that the IREADY signal 48 from the recording section 3 is ON, and then starts recording the drum. The IDRMSTI signal 30, which is the rotating finger 4, is output to the recording section 3. In the recording unit 3, when the IDRMSTI signal 30 is input manually, the IREAI) Y signal 48 is ON and if there is no abnormality in the recording unit 3, the drum transport morph 4 is activated through the driver 43.
4 (step 104).

At the same time, after controlling the potential on the photoreceptor i♂ plum 0, recording is started.
and then output (steps 105, 106). The recording information generating section 1 waits for the output of the IP'\REB Shinyumi 47 and instructs the recording section 3 to feed paper, and when the IPRNST signal 32 is output, it scoots the copy sequence. The IPREB signal 47 is reset and the paper feed roller 7 is driven to start paper feeding (step 108).

In this embodiment, the rotation of each roller of the paper conveyance system shown in FIG. 2 is rotated, and the absolute position of the recording paper is determined by the drum clock signal 42.

Here, the IPREB signal 47 is automatically set after the fed paper leaves the paper cassette after a predetermined period of time has elapsed.

CP is reached at 11t when the leading edge of the fed recording paper reaches the laser writing start timing, 1°/716 (Fig. 2).
U40 outputs the ITOP signal 46 to the recording information generating section 1.

There are two cases for the laser writing start timing position 16 as follows. In Fig. 2, the laser beam irradiation position 17 (laser writing point) and the transfer start point 18 to the 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 ≦ center of the registration roller) (distance between 16 and 18) Case B: When the distance between 17 and 18 is longer than between the center of registration roller 6 and 18 (distance between 17 and 18 - registration I/distance N between center of roller 6 and 18) [+distance # between the center of registration roller 6 and 16] However, in this case, the binding order for aligning the paper is included.

There are two cases.

Recording information output 4: When the ITOP signal 46 is received at 8B1, the contents of the internal recording information storage memory (c page memory) are sent to the semiconductor laser 20 through the VI DEO1 signal 36.
(in case A, step 1)
18,119. In case B, steps 110 and 111)
. 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, passes the paper through the dryer 43, stops the paper feed roller 7, and simultaneously drives the resistor 6 (step 116). ．．
117). In case B, CPU 40 is ITOP Shinso 46
After outputting the paper, the paper is curled for 1 minute at a predetermined timing, and then the paper feed roller 7 is stopped through the driver 43, and at the same time the registration roller 6 is driven (step 11).
2,113). When image recording is started in this way, the CPU
At step 40, the image recording time for one page is calculated by J1 using the paper size signal 55, and when the image recording is completed, an IPREND signal 50, which is an image section end signal, is outputted through the driver 45 (steps 114, 115, 120).

Here, the image recording time is calculated based on the d number of the drum clock signal 42. Counting of the drum clock signal 42 is performed by interrupt processing (step 121).

Next, the operation timing in the VIDEOCLOCK synchronization mode will be explained with reference to FIG. 8, and the control flowchart 1 will be explained with reference to FIG. 9.

If there is no abnormality in the recording unit 3 and recording can be started, I
A READY signal 48 is output (step 131) to inform the recording information generating unit that it is ready for operation. IDRMST2 when the recording information generating section 2 attempts to start recording.
A signal 31 is output to the recording section 3 to start the recording operation. In this case, unlike the ITOP synchronous mode, the recording information generation unit does not necessarily have a memory for one page (page memory), but has a line buffer for several lines and records new data while transmitting image information to the recording unit 3. All you have to do is write the information to the line buffer before it becomes empty. For example, if the transmission speed of image information sent to the recording section 3 and the image scanning speed at the recording section 3 are made the same, by having multiple line buffers, the operation of writing information to the photoreceptor on one side and writing new recording information to the line buffer on the other hand is possible. You can do this repeatedly. Here, the operation of the recording unit 3 on the IDRMST2 signal 31 is based on the IDRMS
The same is true for the TI signal 30. (Step 1
04, 105, 106 are steps 134, 135, 13
6). The recording information generating section 2 generates the IPRNST2 signal under the same conditions as the IPRNSTI signal 32 in step 107.
Output signal 33 to recording B1;3. In the recording section 3, the IP
Execute the same control procedure as after inputting the RNSTI signal. In the TOP synchronization mode, the recording section 3 outputs the ITOP signal 46 as an image information transmission request signal to the recorded information generating section 1, and image information is transmitted in response to the ITOP signal 46. However, in the VIDEOCLOCK synchronization mode, VIDEOCI, which is the image signal output start signal from the recording information generation section, is 0.
Image information is transmitted together with the CK2 signal 52. For this reason, the recording section 3 uses the register I/roller 6 to adjust the image writing position on the recording paper. The recording information generating section 2 outputs the VIDEo CLOCK2 signal 52 from the IT
It must be output at a timing equal to or later than the ITOP signal output timing in the OP synchronization mode. If image information is transmitted before the ITOP signal output timing, there may be a case where the developed image on the photosensitive drum IO cannot be entirely transferred to the recording paper. As a way to prevent this, after the recording information generating section 2 outputs the I PRNST signal 33,
VIDEOCLOCK2 signal 5 after a predetermined time has passed.
2, and along with it, the image information VIDEO2 signal 37
and the above-mentioned ITOP signal 46 from the recording section 3.
Output (step 111 described above).

(equivalent to 119) This 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 recording information generating section 2 outputs the VIDEo CLOCK2 signal 52 and image information (VIDEO signal 37) at the timing corresponding to the ITOP signal 4 signal 4.

Here, like the ITOP synchronization, 12 cases C and case D
Two cases are described below.

In case C (the positional relationship between the registration roller, laser writing point, and transfer start point is the same as case A), the recording paper arrives at the ITOP position [step ITOP (C)
) The procedure before is the same as ITOP synchronization case A. (Step 116.

117 and 118 are steps 155, 156 and 1, respectively.
(corresponding to 57) When it arrives at the ITOP position, the registration roller is stopped and the recording information generation section 2 (7) VIDEO
Waits for the CLOCK2 signal 52 (step 158), and when the VIDEO CLOCK2 signal 52 is input, it is latched by the F/F 53 and manually inputted to the CPU 40, which drives the registration roller 6 (step 161) and records the recorded information at the same time. At occurrence r'f1;, the image information VIDEO2 signal is output and recording is performed 91.This F/F 53 is reset by IPREND (No. 8 56) at the end of image recording.Here, in the recording section 3, the ITOP position 1δ From the time of arrival, timer A is activated to monitor whether the VIDEOCLOCK2 signal 52 is not input in the event of a failure h9 in the recording information generating section 2.

This is to prevent the recording paper from getting stuck in the recording device 3 and causing a paper jam.

vIDEOCLOCK2 signal 52 is not manually operated for a predetermined period of time and timer A becomes T1 or more (step 16
4) Drive the registration roller 6 to eject the unrecorded paper to the paper ejection tray 13 according to the paper loss procedure, and the CPU 40
The IREADY signal 48 is set to 0FFL and VIDEOCL.
The abnormal end is notified to the OCK2 reliability (ON)L recording information generation unit (step 165). When the unrecorded paper finishes passing through the paper ejection sensor 19 (step 166), the drum transport motor 44 is stopped and the I VSCER signal 56 is set to 0FFL.
(Step 167) Return to the start.

In case D (the positional relationship between the registration roller, laser writing point, and transfer start point is the same as case B), the IT
OP generation timing is registration roller 6 and paper feed roller 7
Since this is when the leading edge of the recording paper arrives at an arbitrary position between
is calculated by the CPU 40 using timer B.

(Step 143), and if the VIDEOCLOCK2 signal 52 is not input by the timing when the paper feed roller stops (Steps 152 and 153), the count of timer B is stopped (Step 154). This is because after step 153, there is no movement of the record.

When the VIDEOCLOCK2 signal 52 is input manually, the clock I of timer B is stopped and the recording paper is conveyed until the timing when the paper feed roller stops (steps 144 and 145).

If steps 152 and 153 have been passed, no actual operation is performed in steps 144 and 145. At the paper feed roller stop timing, the recording paper is at the 16th position, 1. :, 4
Since the transport has already been carried out for T2 hours (count value of timer B), after this 12 hours have passed (step 146
) The registration 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. VIDEOCLOCK2 signal 52 is T
If no input is made even after one hour, the same process as in case C is performed and the process returns to the start (step 16).
5.166.167).

The counting of the drum clock signal 42 and the count of the timer 51 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 are the steps 120 and '1
15 and steps 149 and 150 for case D
corresponds to steps 114 and 115 above.

(V) Effects According to the present invention, by automatically starting an information recording sequence using the recording information tV output that is absolutely necessary in the recording information generating section, the configuration of the recording information generating section can be simplified and the load can be reduced. can be done.

[Brief explanation of drawings]

Figure 151 is a schematic block diagram of this embodiment, Figure 2 is a cross-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 a diagram of this embodiment. FIG. 5 is a block diagram of the example in which the valid recorded information all raw portion selection means is located in the recording unit; FIG. 5 is a block diagram when the valid recorded information all raw portion selection means is located in the recorded information generation unit; FIG. A block diagram of the case where the information all-generated 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 a timing chart in VIDEOCLOCKliV1 mode.
The figure is a flowchart in ITOP synchronization mode, and FIG. 10 is a flowchart in VIDEOCLOCK synchronization mode. Here, ■, 2... Recording information generating section, 3... Recording section, 6... Registration roller, 7... Paper feeding roller, 10
. . . Photosensitive drum, 40 . . . CPU in the recording section.

Claims (1)

[Claims] Recording information+IJ, a recording apparatus having a generating section and a recording section, characterized by comprising means for automatically starting information recording control in response to output of a recording information signal from the recording information generating section to the recording section. recording device.