JPS60242147A - Recording device - Google Patents

Abstract

PURPOSE:To make it possible to carry out recording by manual insertion in a laser printer, by indicating the mode of manual insertion and the size of papers when no storing section storing therein papers having a designated size which is instructed from an external device is set. CONSTITUTION:A designated medium size information stored in a memory means in an external device is compared with paper size informations from medium size detecting means 320, 324 in paper cassetters 317, 321, and if the informations agrees with each other, papers are fed one by one by the associated feed roller 318, and are conveyed through a regist roller 329 onto a photosensitive member 301 where a toner image set by a laser beam from an information recording means 311, is transferred onto each paper. On the other hand, when the result of comparison shows no agreement instructions are made to a display section to indicate such that papers having a certain size should be fed to a manual insertion paper feed roller 327. Accordingly, recording may be made by manual insertion, and the replacement of cassetts is not absolutely necessary.

Description

[Detailed description of the invention]

[Technical Field of the Invention] The present invention records recording information sent from an external device on a recording medium, and includes a plurality of medium storage units each containing a single recording medium of different size, The present invention relates to a recording apparatus in which the size of a recording medium can be changed by changing these medium storage units, and the recording medium can be manually supplied by a manual supply means. [Technical backbone of the invention and its problems] Conventionally, in this type of recording device, if the paper cassette 1- which is the medium storage part for the designated recording medium is not installed, it is not installed. It was not possible to record without removing one of the printers 1 to 1 and replacing it with the designated paper cassette. Therefore,
If the size is infrequently used and therefore is stored in a cassette that is not normally installed in the device, or if it is necessary to record on paper, the number of recorded sheets may be only 1 or 2.
The cassette had to be replaced even if it had only one disc. [Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and when a medium storage unit of a medium size specified by an external device is not installed, a manual feeding means is used to supply the medium for recording. The object of the present invention is to provide a recording device that can perform the following operations. [Summary of the Invention] In order to achieve the above object, the present invention provides a memory for storing medium size information specified by an external device in a device that records information from an external device onto a recording medium by beam scanning. means, a plurality of recording medium storage units, a conveyance unit for guiding the medium from each recording medium storage unit to a recording position, means for detecting the size of each of the medium storage units, The specified medium size information from the device is compared with the detection information from the medium size detection means, and if the comparison result is not a matching signal, a message indicating that the recording medium should be manually supplied to the display unit and the external device The apparatus is characterized in that it has a control means for instructing the display of noise from a medium designated as J mm. (The following is a blank space) "Embodiment of the Invention" Hereinafter, the present invention will be described with reference to an illustrated embodiment to which the present invention is applied. FIG. 1 is a block diagram of a system for recording information on a recording medium by a laser beam. Information from the host system 1 (electronic 81 computer, word processor body, etc.) that supplies information is given to the data control unit 2. The data control unit 2 converts the IC information given from the post side system 1 into data corresponding to dots and stores it in the page memory. This stored dot image data is transferred to the print control unit 10.
Send to 0. The print control section 100 develops and transfers the input dot image data onto a recording medium by modulating a laser beam, and prints the dot image data on a recording sheet. FIG. 2 shows a detailed view of the printer 300 having a video interface.
It has a built-in printing control section 100 shown in the figure. In FIG. 2, 300 is the printer body, 301 is
A photoreceptor 302, which is a recording medium for recording information with a laser beam, is a charge removal lamp for removing the charge on the photoreceptor 301 to an initial state, and is composed of a plurality of red LEDs. Reference numeral 303 is a static elimination lamp for increasing transfer efficiency, and like the static elimination lamp 302, a plurality of red LE
It is composed of D. Reference numeral 304 denotes a charging charge V for uniformly charging the photoreceptor 301 to a predetermined potential. Reference numeral 305 denotes a transfer unit for transferring the toner developed on the photoreceptor 301 onto paper. - jar 306 is a peeling jar for separating the paper after transfer from the photoreceptor. 307 is a developing device for developing the electrostatic latent image formed by the laser beam on the photoreceptor 301;
Reference numeral 08 is a component of the developing device 307, and is a magnet roller for attaching the henna to the electrostatic latent image on the photoreceptor 301, which rotates in the direction of the arrow. 309 is an auto-toner probe that comes into contact with the developer of the magnetic roller and measures the toner ratio of the developer; 310 is a cleaning device that removes toner remaining on the photoreceptor 301 after transfer; It's a blade. 311 is the video data input from the data control unit,
A laser scanner unit is an information recording paper means for scanning, modulating, and recording a laser beam on the photoreceptor 301, and 312 is an octahedral polygon mirror for guiding the laser beam from a laser diode onto the photoreceptor 301. , 313 is a skittle motor for rotating the polygon mirror 312 at high speed, and 314 is an f/θ lens for keeping the scanning speed of the laser beam on the photoreceptor 301 constant. Reference numerals 315 and 316 are mirror mirrors for guiding the laser beam of the scanner unit 311 to the photoreceptor 301. 317 is an upper cullet that is a recording medium storage unit that can store 500 sheets (recording media); 31F3 is the 1st upper paper feed roller that takes out sheets of paper one by one from the upper cassette 317; 319 is the upper cassette. 317 is an upper paper out switch that detects when there is no paper left; 320 is a 4-bit upper paper cassette that detects a size identification mark installed in the first cassette 317;
321 is a lower paper feed roller, 323 is a lower paper out switch, 324 is a size detection switch (detection means).
indicate the lower cassette rise detection switch. In addition, the upper section can store 250 sheets of paper from the lower section, and can also be used with cassettes. Note that paper can also be called a recording medium because it is a medium for recording images. 326 is a manual feed switch that detects the paper inserted from the manual feed guide 325, which is a manual feeding means;
Reference numeral 27 denotes a manual feed roller for conveying the paper after insertion is confirmed by the manual feed switch 326, and 328 is a manual stop switch for detecting the paper conveyed by the manual feed roller 327. . Each of the paper feed rollers constitutes one stage of paper conveyance. Reference numeral 329 denotes a lens 1-0-'7 for synchronizing the cabinet image projected onto the photoreceptor 301 and the paper. 330 is the peeling chip

[・- by J17306
Conveyor belt for conveying and covering the paper to the fixing device, 33
1 is fixing to fix the transferred toner on the paper
332 is a fixing roller, 333 is the fixing roller.
334 is a heater for heating the fixing roller.
Thermistor 335 is 11 to detect the surface temperature of
1 paper roller 336 is the fixing device 331 J:
This is a paper ejection switch for detecting paper that has been removed. 337 is a cooling unit for leaking 7Jl of cold inside the printer 300.
Hmm, 338 is the charging unit I-ja 304° transfer.
Chi V-sha 305. Peeling butoshi 1 no 30 (3 and above)
Apply voltage to the developer and magnet 1 to roller 308, respectively.
High voltage that generates high voltage! Herance. 339 generates l) C voltage used for each control.
The generated power supplies fffi and 3'io control the printer 300.
There is a PCC Coconit that controls it. 342 is a photoconductor 30 installed near the photoconductor 301;
Drum temperature sensor for detecting temperature of 1, thermal resistance
A very small reamister is used. Figure 3 shows information on the photoreceptor 3゜1 by a laser beam.
FIG. 2 is a perspective view showing an outline of a portion for recording information. No.
In Figure 3, the laser emitted from the semiconductor laser 34/l
-The beam is turned into parallel light by the collimator lens 343.
The parallel light is corrected and the 8 faces of the polygon mirror 313
Applied to one side of the body. The polygon mirror 313 is
The scan motor 312 rotates at high speed in the direction of the arrow.
Since ′, the laser incident on the polygon mirror
The beam is passed through an r-θ lens 314 for beam scanning.
The range 348 is scanned from left to right. Bee
Some of the laser beams within the beam scan range 348 are reflected mirrors.
A beam detector 346 is guided by a beam detector 345 . Therefore, one time by one surface of the polygon mirror 313
For each horizontal scan, the beam detector 346 is scanned.
Detects the laser beam. Also, the beam scanning range 34
Laser beam that is not incident on the fouling mirror 345 in 8
is irradiated onto the photoreceptor 301. Photoreceptor 3 in Figure 3
349 shows where the laser beam on 01 is scanned.
. 304 indicates a charger, and 347 indicates paper.
vinegar. In addition, as shown in Fig. 2, the actual printer has f ・θ
The laser beam passing through the lens 314 directly hits the photoreceptor 3.
01, but the reflective mirrors 315 and 3
16 and guided to the photoreceptor 301.
However, for convenience, the reflecting mirror 315 is shown in FIG.
and 316 are not shown, and [・θ lens 31/i is passed through l
) is irradiated onto the surface photoreceptor 301.
This is an illustration. Here, regarding the configuration of the reflecting mirror 3/15, the 42nd section
This will be explained with reference to the figures. The figure shows “9J, sea urchin
The projection mirror 345 has a support portion v located outside the beam entrance area.
With screw 455 on J456 via leaf spring 454
At the bottom of this leaf spring 454,
A fine adjustment screw 457 is provided to adjust the reflection mirror 345.
It is possible to change the angle. Laser Skitner as shown in Figures 3 and 42
The unit is outside as shown in Figure 2.
to prevent the scanning beam from escaping.
Ru. Then, the beam detection by the beam detector 346 is performed.
The output results are displayed at the appropriate position on the scanning panel shown in Figure 6.
It is now displayed. Figure 4 is an explanatory diagram of the registration roller front path sensor 394.
It is. Manual stop switch 3 in Figure 2
28 only detects manual paper, whereas cassette
The pass separator in front of the registration roller detects the paper during paper feeding.
This is the purpose of the server 394. In Figure 4, the upper force set
upper paper feed roller from the main cassette 317 and the lower cassette 321.
roller 318° by either one of the lower paper feed rollers 322
The fed paper moves along the paper guide plate and passes through the registration rollers.
The paper is fed up to La 329. At this time, paper feeding is performed correctly.
If the light emitted from the light emitting diode 393 is
The registration roller front pass sensor 394 is disconnected.
You cannot check the paper being fed because there is no light shining on it.
Ru. Also, if the paper is not fed correctly, the paper may
The registration roller did not reach the front pass sen or - position.
Therefore, the registration roller front pass sensor includes the light emitting light.
Because the light from diode 393 continues to be incident ()
You can recognize that paper has not been fed. FIG. 5 shows a reversing tray 381 which is an optional unit.
FIG. Typically, the printer 300 includes a printer as shown in FIG.
As shown, the non-reversible tray 397 is installed.
. When using such a non-inverted type, the first printing paper is
Since it is at the bottom, the information providing device (host system)
From stem 1), data must be sent from the last page.
The information file on host system 1 must be
The disadvantage is that the method is complicated. Therefore, the said deficiency
In order to compensate for this point, the book reversing tray 381 is essential.
be. In FIG. 5, the paper ejection roller 335 of the printer 300 is
The paper that has passed is transferred to conveyance rollers 382 and 383.
When the paper passes the paper ejection roller 335 onto the tray 384
is stored inverted. The print side of the subordinate C1 paper is on the bottom, so the first
Although the page is at the bottom, remove the paper from the tray 384.
, when the printed side of the paper is facing up, the first page will be on the top side and the last page will be on the top side.
The page is on the bottom side, which is the disadvantage of the non-inverted type Toshinoi 397 mentioned above.
is solved. In addition, in the same figure, 385 is the paper strip.
Slide the topper according to the length of the print paper in the transport direction.
It is possible to 388 is for stored in a tray
Paper holding actuator to prevent paper floating, 1, 39
Step 5 confirms that paper is properly stored in tray 384.
391 is a paper ejection switch for
Light emitting diode 392 is for checking the presence or absence of paper.
This is the tray sensor on the light side. Paper 390 is in tray 384
If the tray sensor 392 is in the
, if there is no paper 390, the light will not hit the tray sensor +1392.
J can detect the presence or absence of paper 390 in the barrel.
Wear. The other side of the paper presence/absence and paper full detection section is shown in Figure 44.
. This causes the actuator 38 to rotate around the pivot point 386.
8 is provided, and a lever 398 is provided in series on one side,
The tip of the lever 398 is separated by a solenoid 389 and a separating means.
The coil 387 serving as the release means is biased in one direction.
C, depending on the state in which the paper is stored in the paper storage section 390.
An example of means for detecting the state at this time by moving the lever 398
For example, if it is detected by multiple sensors/101, 4.02.
I try to do that. Various states of actuator 388
position 81 is 1 paper full", position a2 is 1" paper full
”, the position a3 becomes “out of paper”. said separation hand
In the stage 389, at least the paper 390 is placed in the paper output tray 384.
While the actuator 388 is being ejected and moved inward, the actuator 388 is separated;
When paper should be detected, for example, during printing or when it is stopped,
-C solenoid 389 is synchronized with the status signal when
4τ, release the separation of actuator 38E3.
), and the detection operation is performed. For this reason, paper
The ejection tip of 390 collides with actuator 388
Therefore, there is no problem in the ejection operation. Note that each sheet of paper fed into the paper output tray is
is detected by switch 395, and its contents are described later
1 paper memory counter (RAM107 in Figure 13)
is counted and the number of sheets is detected. And “full of paper”
When this happens, it will be displayed on the tray full lamp 358 in Figure 6.
At the same time, the memory counter is cleared.
ing. FIG. 6 is a detailed diagram of the operation panel of the printer 300.
. In FIG. 6, 350 is the top cover of the printer 300.
-, 351 is the front cover, 352 is the maintenance
The front cover 351 is a cover.
If paper jam or toner replenishment occurs, open it in the direction of the arrow.
Perform processing. Further, the maintenance cover 352 is
It has a structure that opens at the top, but the front cover
If you don't listen to 351 in the direction of the arrow, you won't be able to listen to it.
The structure has been improved to prevent operator errors.
-C is here. 353 is a 6-digit mechanical counter that counts the number of times per sheet of paper.
Plus 1 for each print...354 is online/Δ
The select switch 355 selects the no line.
Corresponding to the select switch 354, when online
Reluctance lamp that lights up. 356 is a single digit seven segment LED (Norhi)
Error details during sman call, maintenance mode
Numeric display to display mode number etc. 357 is printer
The power light indicates that the -300 is powered on.
358 is printed on the inverted tray units 1 to 381.
A tray full lamp that indicates when the paper is full.
359 is a color I that displays details of the printer's operating status.
CD indicators are not shown. Tota explained so far
The clock counter 353 to 1cD display 359 are constantly operated or
is what is displayed. Next, the maintenance cover
Explanation of the part that cannot be operated unless you listen to bar 352
do. The following parts are to be operated only by service personnel.
be. /10.3 is maintenance mode and replacement mode selection
maintenance switch, 406 is maintenance mode
Indicator lamp to indicate that it is in mode mode. 407 is an indicator lamp indicating that it is in exchange mode;
404 selects the operation mode number in each mode.
A selection switch 408 is connected to the selection switch /104.
A selection lamp 405 indicates that a selection operation is possible.
Selection of print mode and maintenance/replacement described above
and execute the operation in each test print mode.
The test switch 360 is for main exposure, which will be described later.
Adjustment volume, 361 is shadow exposure adjustment volume
Each system is not shown. Also, both vol. 360 and 361 mentioned above
The structure is such that you insert an adjustment screwdriver and turn it.
, and the maintenance cover 352 is open.
It cannot be turned by hand. FIG. 7 is a detailed diagram of the LCD display 359.
The function of each display segment will be explained below. 371.372 is the printer 300 standby, resolution r status
etc., and the wait time until the fuser is ready.
The time is 371.372 both lit, 371 in ready state.
Only lights up, both 371 and 372 go off when printing is in progress.
. 373 blinks when a jam occurs in the paper feed section, and indicates the paper feed status.
The segment indicating the status also blinks at the same time. In other words, in the manual feed mode, the manual feed specification is 365, -V stage.
Upper cassette 364 in cent mode, lower cassette
, the lower cassette 363 blinks. 374 is the conveyance system (registration roller 329 and after) 1? Mu
Blinks if . At this time as well, the paper feed segment is
ment flashes at the same time. 375 is the cleaning shown in Figure 2.
The toner collected by the cleaning blade 310 is
Blinks when the stock (not shown) is full. 376
is in the toner hopper (not shown) of the developing device 307.
Flashes when the toner runs out. 377.378 will be explained later
Flashes if a serviceman error occurs. 37
9 flashes when an operator call, which will be described later, occurs.
. 380 points if there is no paper in the selected cassette
perish. 362 displays the selected paper size
. For example, if the upper cassette side is selected and A4 portrait
If the paper cassette is A4-R, it will light up and the manual feed mode
If 80 is selected in the code, 80 will light up. , 363
lights up when the lower cassette is selected, 36/I
is lit when the upper cassette is selected, and 365 is lit when the upper cassette is selected.
Lights up when manual feed is selected. 366 is pudding
It represents the shape of the data 300, which is always lit, and 367 is photosensitive.
It represents the body 301 and is always lit, and 368 is the printer 3.
This shows the upper shape of the
369 is a conveyor jam (when the above 374 is blinking)
368 is lit alternately. 370 is paper conveyance
5 segments displaying status, 1 from right to left
One segment lights up while moving and covering. FIG. 8 shows a schematic diagram of the data control unit 2 in FIG.
It is a lock diagram. In the data control unit 2, the host side system
The character code information and image information sent from System 1
, a drive corresponding to the print area on the paper of the printer 300.
Data change 1 on the page memory 20 that supports Tsuto! J! Postscript
Make me remember. Also, the stored data on the page memory 20 is
The data is sent to the printer 300 to perform a printing operation. The data control unit 2 is configured to receive two types of information.
has been completed. In other words, one is character code information (JIS
8 unit code, etc.), and in this case, the character generator
"J:" is in Rator 15, which means the character corresponding to that character code.
Generate a pattern and page the dot information of the character pattern
It is stored on the memory 20. The other is image information, in this case
is already input in the form of dot information, so
It is stored in the page memory 20 as it is. From now on, see Figure 8.
An overview of the data control section 2 will be explained with reference to FIG. Information from host system 1 is sent via signal line S01.
and the information is sent to the interface 50, and the information is sent to the interface 50.
data is stored in data latch 3. Signal line S between interface 50 and host system 1
O2 is sent out from the post side system 1. of data
The strobe signal and other control signal line SO3 are data
This is the busy signal and status signal line from the controller control device.
Ru. Format of information sent from host system 1
The illustrations are shown in FIGS. 9 and 10. Format of Figure 9
The example below shows the format for character code information.
Character identification code indicating that it is code information, for printing
A paper size code indicating the paper size is placed at the beginning of each page.
It's in. From then on, the characters appear in the order of the 1st line, the 2nd line, and the nth line.
Contains the code data, and finally the data for that page
Contains an END code indicating the end. Another line of text
The character code data includes the code indicating the character size and the character code.
Consisting of LF codes that indicate the division of 21 lines of data.
ing. Figure 10 shows the format for image information.
The image identification code indicates the 4 noises of the paper to be printed.
The paper size identification code is entered at the beginning of one page of data.
ing. After that, 1 line. 2 lines...Image data is entered in the order of m lines.
ing. In addition, one line of data is the paper size identification
Since J is specified in the code, data control unit 2
On the side, only the specified data is counted.
It is automatically determined by this. The input information from distributor 4 is processed as follows. distribution
The decoder 5 is always connected to the decoder 5 by the output line S04.
The information entered in the device 4 has been input. First, the character code
Regarding the case of code information, the character identification code in Figure 9
When the code is input to the decoder 5, the output of the decoder 5 is
1, main control input to main control unit 6 via line 805
Part 6 confirms that the input information is character code information.
The signal line SO6 sends the following information to the distributor 4.
Transfer paper size data to page code buffer 7 control circuit 7
Therefore, the paper size data is sent to the distributor 4.
Page code banner control via data line SO7
input to the circuit. The next 1st line, 2nd line...
・Data up to the nth row is sent from the distributor 4 to the data line 808
is entered into the page code buffer via . At this time
character]-code data is specified by address counter 8.
Stored page 1 in memory area on buffer 9.
be done. One page of characters in the page code buffer = 1
- Once the code information has been input, the END code in Figure 9 can be decoded.
When detected by da 5, signal line 805 and S09
Main control unit 6. page code buffer control circuit 7 respectively.
END code detected. By signal line SO9,
Input character code for one page into page code buffer
The page buffer control circuit 7 confirms that the
and storage of data in the page memory 20 in dot units.
will be held. The correspondence between the memory space on the page memory 20 and the paper is as follows.
It is shown in Figure 11. In Figure 11, the dashed lines indicate the outside of each sheet.
Show. In other words, 25 is the leading edge of the paper (common to all sizes), 2
4 is the left edge of the paper (common to all sizes), 28 is for A5 size
The right edge of the paper, 27 is the right edge of A4 size paper, 26 is the A3 size paper.
The right edge of size paper, 31 is the back edge of A5'J size paper, 30
Back edge of A 4” L-size paper, 29 is 3 size
Each shows the trailing edge of the paper. 32 is a read address card.
Address of counter 19 and address counter 18 for input/output
The point of ADR(0,O) is not shown. Here, ADR (
0, O) means vertical address (ADRV) and horizontal
Both direction addresses (A [) R' lt) are O'
It means that. In other words, write address counter
The counter 18 and read address counter 19 are shown in FIG.
The vertical address (ADRv) and horizontal address are
It consists of a dress (ADRH), and ADRV consists of a dress (ADRH).
Represents the direct address (arrow b in Figure 11), ADRH
does not represent a horizontal address (arrow C in Figure 11).
ing. 43 is the last horizontal address of A3 size paper (A3HE
)', 44 is the horizontal address of 4 size paper (△l~1
fE), 45 is the horizontal address of A5 size paper (A5H
E). Similarly, 46 is the last part of A3 size paper.
Vertical address (A3VE), 47 is A4 size vertical address
Dress (A4VE), 48 is the vertical address of A5 size
(A5VE). 33 is the vertical address of A3 size
Su AD, RV=O, horizontal 7 do L/su ADR1-1=A3
HEf7) Point ADR (0, A3HE), 34 is the same
, ADR (0, A41-IE), 35 is ADR (
0, A5HE) respectively. Also, 36 is A3 size
vertical address ADRV = (A3VE), horizontal address ADRV = (A3VE), horizontal address ADRV = (A3VE), horizontal address
/ Su A D RH = O (7) Point ADR (A3
V.E. 0), 37 is similarly 1rADR (A4VE, O). 38 indicates ADR (A5VE, O), respectively. 39 is the A3 size vertical address ADRV=A3VE,
Horizontal address A D RH-838E point ADR
<A3VE, A3HE), similarly 40 is ADR(
A4VE, A4HE), 41 is ADR(A5VE, A
5HE) are not shown. A statement to the page memory 20 with the above-mentioned memory space
Memorizing the academic pattern as a dot image is done as follows.
be exposed. Characters in the 1st line from page iodine patu noa 9
The is data is sent to the page code buffer via the signal line S10.
7 control circuit 7. The font size in this example is
There are two types of fonts: 40x40° and 32x32 dots.
is the basic page, and the control circuit 7 is
Then, determine the font size based on the font size code read.
The discrimination signal is sent to the page memory via the signal line S11.
The character projector is sent to the control circuit 17 via the signal line S13.
Send each to Nerator 15. Page memory control circuit 1
7, the line break pitch and
The character generator controls the character pitch and character pitch.
In step 15, character size data is switched. The character code after the character size data is stored in one line of memory.
A row address counter 11 is placed in a row buffer 1o with a capacity.
will be transferred to the specified area. The end of one line of character code data to line buffer 1o is
Upon completion, the row address counter 11 returns to the initial address (
Return to 0). First, select the first vertical line of the character font.
to the page memory 20 (Figure 11, line 57)
is written. Here, the line/scan counter 13 has an initial value (0,
0>, and write address counter 18
The value of is ADR (0, O). row batshua 10
The character code data of
The readout is performed by the line counter 13, and synchronization with the line counter 13 is performed.
It is latched in order in the output latch 12 in order to first sentence
The character code (in this example, the character 'T') is the output latch 12.
When latched to, the character code and line/scan of
The output of the counter 13 is synthesized by the synthesis circuit 14 to create a character.
As a character pattern selection code for the tag generator 15,
It is input to the character generator 15. Here, la
The configuration of the in/scan counter 13 will be explained.
, the upper 6 bits are the count of scan lines starting from 1.
It serves as a vertical counter for the character pattern.
0 to 39 plus for 40 x 40 dot characters
, line feed pitch control line count and returns to O''. The lower 3 bits serve as a horizontal counter of the character pattern.
If the font is 40x40 dots, the size is O~4.
Count the last character pitch control and return to O' (Character
This is because the output of the vector generator 15 is 8-bit parallel.
). Below, the font size is 40X40. horizontal spacing between characters
Behavior when the vertical interval of 1 character is 8 bits for 8 pits
I will explain about the work. As mentioned above, the first character code ('
T''') is set in the output latch 12, the statement
character code and output of line/scan counter 13 are combined
Characters synthesized by circuit 14 and generated by character generator 15
Character generator 1 as pattern selection code
5 is input. At this time, the line/scan counter
Since the value of is (0, O), the character generator
The output of data 15 is the vertical direction ``0'' line of the character pattern.
In-th data (8 bits) in the horizontal direction is output.
be done. The output data of the character generator 15 is
Output latch to synchronize writing to the storage memory 20
16 and is once latched by the page memory control circuit 17.
Page memo specified by write address counter 18
3 written to the address on the memory 20, in this case, the write address
The value of response counter 18 is ADR (0, O).
Therefore, the address of vertical address ``0'' and horizontal address ``O'' is
written to. Then write a 1-byte character pattern
When completed, the value of the line/skip↑・n counter becomes (
0, 1>, and the write address counter 18
The value also changes to ADR(0,1). Follow C character
The output of the generator 15 is ``0'' in the vertical direction of the character pattern.
The data of the ``1'' horizontal line on the line is output, and as described above.
Similarly, after being latched to the output latch 16, the page memo
The data is written to address ADR (0, 1) of the memory 20. like this
and the end of the vertical ``O'' line of one character pattern.
The storage of the data after (゛4'4' data) is completed J-
Then, the 1st shift of the line/skip 11 counter is <0.5)
, the address counter 18 for l includes ADR(0,5>).
Ru. The horizontal spacing between characters is 8 dots to 1 (1 byte).
That's it (・, the appearance of character generator 15) J
is determined by the command from the page code buffer control circuit 7.
All are forced to 0', ADR of page memory 20
“0” is written to address (0, 5), and after the write operation is completed,
, the row address counter is incremented by 1' and the row buffer 1 is
The next character code from 0 is set in output latch 12.
. Also, the line/scan counter is (0, 0), write
The address counter 18 becomes ADR (0, 6). subordinate
Next is the data on the 0' line in the vertical direction of the O' character pattern.
A write operation to the page memory 20 of the data is performed. Koto
The address counter 18 for writing is ADR (0, 6>, (
0,7), (0,8), (0゜9>, (0,A>) in sequence
The count up continues, and each O character pattern design is counted up.
data to the address specified by the write address counter 18.
I'll write it down. Then, the value of the write address counter 18 is (0°B),
The value of line/scan counter 13 becomes (0°5)
Then, 0' is written to the page memory 20 as described above.
, after the write operation is completed, the row address counter becomes plus “1”.
', and the next character]- from line buffer 1O is output to the output line.
12 is set. Also, the line/scan counter 13 is (0°0),
The embedded address counter 18 becomes ADR (0°C). In this way, the character pattern of the ``0'' line in the vertical direction is sequentially created.
Data is written to the page memory 20,
Then, the “LF” code is output to the output of row buffer 10.
Then, the F' code detection signal is passed through the output line 814.
page] - is transmitted to the buffer 7 control circuit 7, and the cache is
Character pattern writing operation from character generator 15
Production stops. And after that, write address counter
The data 18 is sequentially incremented by 1 and forced to 0.
Write on Mori 20. Then, write address counter
If the value of printer 18 is currently specified as A3 size, AD
The value of R (0, A31-IE), that is, the 33 point in Figure 11
When the write address becomes 1, after the forced “O” write operation, the write address is
The address counter 18 is ADR(1,0>', row address counter
Counter 11.18 (0), line/scan counter 1
3 are set to (1, O), respectively. And the output
Latch 12 contains the first character hood from line buffer 10.
T' is set again. and the letter pattern
The character pattern data on the 1st line in the vertical direction is on the page menu.
It is written to memory 20. Similarly, the vertical character pattern
Direction '2'. 3'...Pa The writing operation up to the 39th line is completed.
, the write address counter 18 is ADR (2'8.0
), the row address counter 11 is (O). The line/scan counter 13 is set to (28, O> respectively).
is set. This completes the character pattern data for one line.
The write operation is finished, but the next line feed pitch is 48 lines.
0' is forcibly added to the page for the remaining 8 lines.
Written to memory 2o. And 8 lines of 0' writing
When the writing is completed, the address of the writing address counter 18 is
The response value is the point in FIG. 11 61, that is, ADR<
30.0>, the row address counter 11 is (0). Line/scan counters are set to initial values (0, O) respectively.
is set. This includes the line break pitch for one line.
All write operations are completed. And in row buffer 10
The character code data on the next second line is the page code buffer
Transferred from 9. Character code data transfer ends
and the row address counter 11 returns to the initial address (0).
3. After that, write the character pattern data on the first line.
The second line of character pattern data is written in the same way.
It will be done. Therefore, the writing operation of the second line character pattern data
When all are completed, the write address counter address
The value is ADR (60, O'), and the row address counter 11 is
(0), the line/skip 11 counter is set to (0,O).
are set respectively. In this way, the character code of each line is
Pattern the code and store the pattern data on the page memory 20.
Write down the data. Then, add the “END” symbol to indicate the last line.
When the code is detected in the line buffer, the character pattern
The data write operation is stopped. and the page codeback
The character signal is transmitted from the signal line 313 from the phase control circuit 7.
The output of the generator 15 is forced to 'O' and the output of the
character pattern data to the page memory control circuit 17.
Notify the end of writing. The page memory control circuit 17 receives the write end signal.
After that, the paper size specified in the page memory 20 is
The final memory address (A3 size) for the remaining memory area.
Figure 11 39 point ADR (A3VE, A3
Forcibly write "O' to HE)). Then, FIG.
Write 0' at 39 points for 1 page of specified paper size
Writing operation of character pattern data to page memory 20
All of the work is complete. and write address counter
18 is ADR (0, O), row address counter 11 is
(0), line/scan counter 13 becomes (0, O)
All are initialized. Next, the data sent from the host system 1 is displayed.
Let us now discuss the case of image information. Image identification code in Figure 10
When the code is input to the decoder 5, the output of the f code 5 is
The signal is input to the C main control unit 6 via line 505. Main control section
In step 6, it is determined that the input information is image information.
The signal line SO6 sends the next paper size data to the distributor 4.
command to input the data to the base memory control circuit 17
. Therefore, the paper size data is sent from the distributor 4 to the data line SO7.
The data is input to the page memory control circuit 17 via the page memory control circuit 17. next
Subsequent image data 1, 2. ...image data up to m is minute
From the device 4 to the page memory 20 via the data line S15
is input. ii to page memory 20! ii statue day
The data input method is as follows. Page memory control times
When the paper → noise identification code is received, the next picture is displayed.
The image data is transferred to the 32 points in Figure 11 (address ADR (
Write address counter 18 to write from 0, O))
Set to ADR(0,0>.And paper size identification
The data length of one horizontal line from the code is
By referring to the table in the memory control circuit 17
It's decided. Therefore, from now on, input to page memory 20.
If the paper size of the image information is A/4, 1 line
The input data length is 44 points (A4HE) or
The value is A4HE'. host side system
The length of image information per line sent from system 1 is also
Naturally, it is 'A48E', so the image data in Figure 10 is
Data 1. i! ii Image data 2. ...Image data
The data length is 'A 4 V E', and the number of image data m
is the value of 47 points in Fig. 11, that is, A 4 V
It is F'. Therefore, to the page memory 20,
Image data 1 in FIG. 10 is shown in FIG. 11 at 32 points 1-
ADR,<0.0)~34 points 1~ADR(0°A4
HE), image data 2 is a 51 point line, image data
Data 3 is a 52-point line... Image data
l is a 37 point line, so the final address is 40 points.
Into ADR (A/I VE, A4.1-IF)
. While controlling the write address counter 18 in this way,
, writes image information to the page memory 20. In this way, it is written to the page memory 20! c character pattern
The tone data 13 is indicated in the read address counter 19.
The latch 21. sequentially outputs the data at the address. gate times
Road 23. interface 22
The data to be printed is sent to the print control unit via bus 817.
put out In Fig. 8, 817 is the step from the print control section.
Data line, S18, indicates the operation mode to the print control unit.
The command data lines S19 and S20 are used for
Strobe signal line when sending command data and print data
, S21 is the busy signal line from the print control unit, and S22 is the busy signal line from the print control unit.
, horizontal synchronization signal line from the print control section, S23 is also printed.
Page end signal line that signals the end of character data, S24
is the ready signal line of the print control unit, and S25 is the ready signal line for printing.
Print request signal line that informs the status, 826 is the front
The data on the data line in the Inter 7 Eighth bus 817
Recruit message @ line (2 lines) that specifies the data contents. S27 is a mark that instructs the print control unit to start printing operation.
This is the character start signal line. More detailed explanation of when data is exited to the print control unit
Then, the printing from the data control unit 2 starts via the start signal line S27.
In contrast, the print control section sends a horizontal synchronization signal 822. By this horizontal synchronizing signal S22, first, the point 32 in FIG.
point line, 51 points at the next horizontal synchronization signal S22
Sequentially transmits each data line of the
address counter 19b, the horizontal periodic signal S2
2, change the address one line at a time.
and a page end signal 823 from the print control unit.
Repeat this operation until you receive the page memo.
The data in the specified area of the printer 20 is transferred to the print control l1 section.
and receives the page end signal 823.
If set, data transmission will be forcibly stopped. In the print control section
The timing at which the page end signal 823 is output is the same as the above water.
It is output at the same timing as the flat synchronization signal S22. M1 = ,
In correspondence with the memory address in Figure 11 (J, the paper size
The final line Δ3'C- of the memory area of
point, A4 is the same as 47 boins 1 or more.
Output from the print control unit at the previous timing. Further, in the page memory control circuit 17, the page memory 20
When the sending of print data starts, the readout data is always
Address counter 19 and write address counter 18
The values are compared and the value of the read address counter 19 is higher.
If it is larger, it is the memory area where the data transmission has finished.
It is controlled so that the write operation is permitted for the controller. follow
Therefore, the writing time to the page memory 20 is very small.
It disappears. FIG. 13 is a block diagram of the print control section 100 in FIG.
Show the diagram. In FIG. 13, 101 is the print control section 100.
Microbrocene υ to control each coniscito within
-2102 is an interrupt for microprocessor -101
This is an interrupt control circuit for controlling the
Command signal 1830 from chair circuit 122. printing day
Page end signal line S29 from one data write control circuit.
Time alarm 1 to signal FJ82 from general-purpose timer 103
Interrupt request signals from each of the 8 microprocessors
- Report to 101. 103 is a general-purpose timer, and
Basic timing signals for control of feeding and drum rotation processes, etc.
The number is generated. This general-purpose timer 103 is
is set to 511+SeC. 104 is ROM
(read-only memory) and print control unit 100.
Contains all C control programs for operation.
Ru. +05 is the same < ROM and the above ROM10/l
contains different data tables. data table
The contents are not shown in Figure 45 (Δ). In Figure 11I5 (Δ)
The address (4000, 4001> is paper size A3)
In the case of 1, the margin control data and address (4
002, 4, 003) has bottom margin control data.
Address (4004, 4, OO5) is a left mark.
Jin control data, address (4006, 4007)
) - Contains data for margin control.
. Similarly, the address (/IO08~400F>
, top, bottom, left, right for paper size B4
Contains data for controlling each margin. below) 7 do
Merge that supports various paper sizes up to reply (4087)
Contains control data. And merge these
The print data retransmission control circuit 1 (described later)
1' of the margin control count within 19! Tutota and
used. Here, the top margin is the beam
In the direction that intersects the scanning direction (i.e., paper transport direction)
This refers to the information recording start position, and is the same as the bottom margin.
Write merge
The period from the start of scanning in the beam scanning direction to the start of recording.
, and the left margin is the same as the left margin in the dome scanning direction.
(This refers to the period from the start of scanning to the end of recording. Addresses (4100 to 41FF) are from the data control section.
Contains a table of command codes for specifying operations from step 2.
The command code from data system m+ part 2 is
used for The contents of the command are top/bottom
Margin change table. Top margin adjustment table, cassette top/bottom adjustment table
Bull, Kahit/manual feed adjustment table, etc. address
(4200 to 42FF) of the photosensitive drum 301.
Contains data on charging characteristics, and there are 5 types of data from A to F.
Contains ta. This data is used for charging which will be explained later.
It is used for temperature correction control of the charcoal sheet 304. address
(from 4300 to 43FF>, the exchange data table
The photosensitive drum 301. The developer inside the developing device 307
Contains each replacement cycle data for the image agent and the fixing roller 332.
ing. Addresses (4400 to 47 F F > are for control
It is a timer table and each professional timing,
Various timers for printing operations such as paper feeding timing etc.
Contains a value. 106 is RAM (Random Access Memory)
It is a memory for the King, and it contains the memory shown in Figure 46.
As in, Timer (TIM), A. B, ..., 19 paper size register (described later)
1 to size detection switch 320.3: Depends on the signal of 24
(Memorizes size data from Kasen 1), status
Contains part 6 and other contents. Said micropro
Processor 101 stores the cassettes stored in the paper size register.
data size and the external data sent from the data control unit 2.
Compare the size of recorded information (image data, etc.) on the
If the cassette size is larger, the printing control at the later stage will be
The controller 100 is instructed to issue a print operation command to the unit 100. subordinate
So, the printing paper is information C-nize sent from outside.
Printing can be done even if the size is larger, improving usage.
Ru. 107 is a non-volatile RAM that retains the contents of the memory even when the power is cut off.
Data is retained. Also the non-volatile
The data contents in the raw RAM are shown in FIG. 45(B). Fourth
In Figure 5 (B), the address (6000) is the exchange mode.
The drum characteristic number entered from the operation section is entered by
The address (6100) contains the jam address when a jam occurs.
In the event of a jam, the power will be turned off once.
This is used to prevent people from forgetting to dispose of jammed paper in the aircraft.
. The address (6200) is the paper in the reversing tray 381.
Count the 1 paper tray counter and flip it from 1 to 1.
Each time a sheet of paper is sent to the i381, it is counted by 1.
I get pinched. When this value reaches the specified value, it will turn off.
The printer enters the layful state and asks the operator to remove the paper from the tray.
A message appears on the operation panel asking you to take it out. Also, the book output tray counter
The printer is operated by an operator when the paper is removed from the tray.
It will be cleared automatically. Therefore, the power is turned off.
However, the number of paper remaining in the tray is displayed on the book counter.
is maintained. Address (6300) is the drum exchange counter.
, counts up by 1 for each print. book counter
The exchange table (drum) shown in Fig. 45 (△)
), the display on the control panel indicates that the operator
inform the data center that the drum should be replaced. The address (6400) is the developer exchange counter.
As with drum replacement, each print is counted up by 1.
, the value of this counter corresponds to the exchange table shown in FIG. 45(A).
Displays on the operation panel when the developer value is reached. Address (6500) is the fixing roller replacement counter.
Yes, the count is counted by 1 for each print, similar to the drum replacement described above.
The exchange table (fixing roller) shown in Fig. 45 (A)
) is displayed on the operation panel. 108 is a power supply sequence circuit C, and the non-volatile generation RA
Prevents erroneous operation when turning on or turning off the power of M107
It has the function of 399 supplies power to the control unit
It is a power supply device that 110 is an input/output boat and is operated
Output of display data to display unit 111 and each operation switch
Reads data, etc. 112 in the print control unit 100;
An input port that reads input data from each detector 113.
be. 116 is a motor, high voltage power lamp, solenoid,
Drive elements such as fans and heaters are shown. 115 is the drive
A drive circuit for the element 116, and 114 is the drive circuit 1.
This is an output port that provides an output signal to 15. , 31
2 is a laser scan to control the laser beam
The motor, 118 is its drive circuit, and 117 is the drive circuit.
This is an input/output port that provides drive control signals to the dynamic circuit. 344 is a semiconductor laser, 120 is the semiconductor laser
346 is a laser modulation circuit that modulates the light of the laser.
– Detects the light beam being manipulated by the scan motor.
It is a beam detector that emit
iode is used. 121 digitizes the analog signal from the beam detector.
high-speed comparator to create horizontal synchronization pulses
119 is the video transferred from the data control unit 2.
The print data of the image is transferred to a predetermined position on the photoreceptor 301.
control and the generation of test pattern printing data, etc.
This is the print data entry control circuit. 122 is data system
Output of status data to control unit 2, data control unit 2
control the reception of command data and print data from
This is an interface circuit. The details of the main blocks in Figure 13 are explained below.
I will clarify. Figure 14 shows various detectors 11 in Figure 13.
FIG. 3 is a detailed circuit diagram of No. 3. In Figure 14, various detection
The signal from the device is input to multiplexer 139. Ma
The multiplexer selects 8 bits by the select signal S31.
The input port 112 in FIG.
is input. 320 is an upper stage power cellar 1 to size detection switch;
It consists of several switches, and the combination of these switches allows paper
It is designed to represent the is. 324 is the lower cassette
This is a size detection switch, and the configuration is the upper cassette.
It is similar to the size detection switch. 319 is Kasen j
~It is the upper paper out switch, and there is no paper in the cassette.
and the switch turns on. 323 is the lower paperless switch.
It is 123 is the registration roller front pass sensor
Therefore, a CDS light receiving element is used. The book sir is
, a bias voltage is applied through a resistor (as shown).
The IJI voltage may be changed depending on the presence or absence of paper.
Ru. Therefore, the reference voltage Vref1 is applied to the output of −C.
By inputting to the comparator 124 that
It is possible to obtain a signal to determine the presence or absence of 326 is a master for detecting paper from the manual feed guide 325.
The manual feed switch, 336, is located on the fixing roller section.
395 is the paper ejection switch located in the paper ejection tray section.
Indicates a switch. 125 indicates no toner in the toner box.
126 is a toner out detection switch to detect the toner bag.
Toner full detection that operates when the toner is full
Each switch is shown. 127 is a detection sensor for developer I~Luna-Taki degree.
(concentration detection sensor), and the first diode is
It is used. This sensor uses a bias voltage via a resistor.
The output voltage varies depending on the toner concentration.
Change. Therefore, input the output to comparator 128.
By doing this, the A11 input of the comparator 128
What about the terminal? 5 QCTti pressure Vref2 is applied
Therefore, if the toner concentration is above or below the specified value, the
gives an O signal. 129 is 0N10FF by opening and closing the front cover.
A door switch 130 is provided in the fuser.
Temperature fuse, 131 is drive mmH (+24 V B
) WON / OF F c Cell MC'J 1
7-. One of the temperature fuses 130 is connected to the power supply +2
Since it is connected to 4VA, the temperature fuse 130 is
If the MC relay 131 is fused due to an abnormality in the
is turned off, and the driving power source is turned off. Also, the temperature
The resistor 130 is connected to the resistor RO1, and the resistor RO1 is connected to the resistor RO1.
One side of 1 is connected to the input node j of resistor RO2 and comparator 132.
It is connected. In addition, the other input of the comparator 132
A reference voltage Vref3 is applied to the reference voltage Vref3. Therefore, the temperature
When the fuse 130 melts, the input of the comparator 132 becomes
It becomes an OV. Therefore, the output of the comparator 132 has a temperature
A fusing detection signal of the degree fuse is output. 133 is destination
This is the first selector switch, specifically the 0N1 switch of this switch.
Due to 0FF, the ON state is for domestic use (△ and B size),
OFF is for the US (legal, letter size)
Ru. Therefore, for example, the size of the upper or lower cassette
Even if the combination of codes by switches (4 pieces) is the same, this switch
Depending on the status of the
Select the size. 13/I is the jam reset switch, which is located on the front cover.
It is located inside the bar. This switch can be used with paper jam or
If a toner full operator call occurs, the operator
Please check after clearing the jam or replacing the toner bag.
It's a switch that turns on based on taste. Therefore, after the above processing, this step
If the switch is not turned ON, the operation part may be jammed or full of toner.
Display is not cleared. 392 is inside the tray in Figure 5
This is a paper output tray tray that detects paper. 334
is a thermistor that detects the temperature of the fuser.
The temperature detected by the sensor is controlled to be constant. Thermistor 3
34 output is resistor RO3 and comparator 136.137
connected to the input side of the Therefore the input of the comparator
The voltage changes as the resistance value of the thermistor 334 changes due to temperature.
and change. That is, as the temperature increases, the input voltage increases. 2] The input terminal of how to use the comparator 136 has a resistor RO
A voltage divided by 6 and RO7 is applied, and this
Depending on whether it is higher or lower than
Accordingly, the output of the comparator 136 changes. Also, resistance
A resistor RO8 is connected to the connection point between R06 and RO7.
One side of the transistor is connected to the collector of 1 transistor 138.
It is. Therefore, this transistor 138
(Power supply signal) When 01 is set by S3, the comparator
The reference voltage of regulator 136 is lowered by resistor RO8.
The temperature of the fuser is controlled by the transistor 138 at 0[F].
lower than when Therefore, the power consumption of the fuser
The power becomes low and it enters a power save state. Compare again
The reference voltage of the motor 137 is the voltage divided by the resistors R-04 and RO5.
Therefore, it is given. And the base of this comparator 137
The reference voltage is slightly higher than the reference voltage of the comparator 136.
The heater is set low during printer operation.
Fusing unit temperature due to disconnection or heater drive circuit failure
It is possible to detect a decrease in temperature. and comparator 1
One of the outputs 333 of 36 is input to multiplexer 139.
is read by the microprocessor-101.
taken. Note that this input signal is used when the fuser is ready.
It is used in the sense of detecting the state. In addition, the other side is shown in Fig. 15.
is used as a drive signal for the fuser heater lamp 333.
Ru. 342 is a drum temperature sensor that detects the temperature near the photoreceptor 301.
It is highly senryu. →The output side of Nomister 342 is a resistor.
Connected to the input of resistor R58 and A bearing 2f0. Therefore, due to a temperature change near the photoreceptor 301, the sensor
The resistance value of Mister 342 also changes. Therefore, the op amp
The input voltage of 270 also changes. Output of operational amplifier 270
When the temperature of the photoreceptor 301 is low, the voltage is low;
When is high, a high voltage is output respectively. A amplifier
270 is a voltage follower, and its output is
, connected to the input of A/Dr-1 inverter 271
. Then, the A/D converter 271 converts the
Converts the output voltage of the amplifier 270 into a digital value and converts it into a multi
read to microprocessor 101 through plexer 139.
1. The temperature of this A/D converted photoreceptor 301
The data is used for charge correction of the photoreceptor 301, which will be described later.
. 440 is a cassette upper/lower adjustment switch;
1 is the cassette/manual feed adjustment switch, and 442 is the tray
This is a top margin adjustment switch. These various adjustment steps
The switch is installed inside the device, and the service person
The machine is designed to be opened and operated. And this
Each of these switches has a plurality of setting sections. In other words, the second/lower stage adjustment switch 440 is
The lower caret relative to the center position of the
It has multiple setting sections to accommodate misalignment of the cassette.
/Manual feed adjustment switch 441 is also in the upper cassette position.
Multiple settings to accommodate misalignment of the manual feed guide based on the
The top margin adjustment switch 442 has a setting section of
Multiple setting sections to adjust the positional deviation of the recording start position
have. These setting signals correspond to the corresponding ones in the ROM.
You can now select the data you want. Especially the top marketer
Minimum amount of change (1 bit) applied to the engine adjustment switch
is the alignment of the output pulses obtained from the scanning beam detection means.
It is determined by several times the number of pulses. These switches are
The serviceman executes the test mode described later and performs the test process.
By determining the print status when printing
This is what is set. FIG. 15 shows the drive circuit 115 and output element in FIG.
2 is a detailed block diagram of child 116. FIG. In Figure 15
, 141 is a developer motor, which is a DC-driven Hall motor.
is used. 140 is a dryer for the developing device motor.
It is a bar and performs Pl-L control. 143 is
The fuser motor uses a DC-driven Hall motor.
1°142 is the dryer of the fuser motor 143.
The bar performs PLL control. 145
is a fan motor for cooling the aircraft, and is a DC-driven home motor.
motor is used. 144 is the cooling fan module
It is a driver for the developer and fuser mentioned above.
It does not perform PLI-speed control like the Ibar. 14
7 is a motor for driving the photosensitive drum 301, and is a four-phase motor.
A ruth motor is used. 146 is the drum motor
147 driver, constant current 1-2 phase excitation force type
We are hiring. The speed is about 1200PPS of vibration.
It is driven in areas where there is little generation. 149 is Registro
register that drives the roller 329 and manual feed roller 327
It is a pulse motor. 148 is the resist
Motor driver, uses constant voltage two-phase excitation method
are doing. The speed is about 400Pps. In addition, when the resist Tanabata 149 is rotated in the forward direction,
When the registration roller 329 rotates and is reversed, the manual feed
Roller 327 rotates. These are one-way clutches
It is intended to be transmitted via. 15゛1 is a lower paper feed roller 322 and an upper paper feed roller
The paper feed motor that drives 318 is a pulse motor. As above, forward and reverse rotations are transmitted via the one-way clutch.
There is C. 150 is a driver for the paper feed motor 151;
Yes, constant voltage like the resist motor driver 148
It uses pressure two-phase excitation. The speed is 4001) P S
That's about it. 302 removes residual charges on the photoreceptor 301 before charging.
It is a static elimination lamp that consists of multiple red 1-FDs.
ing. R10 is a current control resistor of the static elimination lamp 302
and 152 is a driver for the static elimination lamp 302.
. , 303 represents the transfer efficiency placed before the transfer charge 17.
It is a pre-transfer static elimination lamp for increasing the temperature, and multiple 1t! I's
Consists of red LEDs. R11 is the static electricity removal before transfer.
153 is a current control resistor for the lamp, and 153 is a resistor for static electricity removal before transfer.
It is a lamp driver. 158 is 1.S-collection block
When this solenoid is turned on with the rad solenoid,
A blade 3'10 is pressed against the photoreceptor 301. 7
54 is a driver for the blade solenoid 158.
. 159 is 1 to toner from the toner popper to the developing device 307.
This is a toner replenishment motor for replenishing toner.
- As the replenishment motor rotates η, the toner small flange -
The developer 307 is replenished with toner. This toner supply
The operation of the motor 115 is shown in FIG.
It operates according to the output of the degree detection hinge. '155 is the front
This is the driver for the 1-ner replenishment motor 159. 13
1 works in conjunction with the door switch similar to that shown in Fig. 14 above.
MC relay, 15 (i l with another driver
be. Then, as shown in FIG. 15, the MC relay 131
The power supply side common for motors, lamps, etc. that do not require
is connected to contact 163 of relay 131, and the other contact is
+24V! 3 connected to the power supply therefore the MC relay
-131 is ON, the motor and lamp
It has a configuration that allows it to operate. 304 is a charger for charging and the charger case.
is connected to the aircraft ground. Chillage V = 10 na The discharge wire is a high voltage power supply 33
J5 is connected to the output terminal r of the charging high voltage power supply 160 of No.8.
0N10F of high voltage output is required for human power of high voltage power supply for charging.
F signal line S35 and Analyzer E that changes the high voltage output current
1G control signal line 336 is connected thereto. Also Ana [1
The control signal line S36 is connected to the []/A converter 165.
, and the charge from Microbrosena-101
According to the data on the pressure control data line 337, D/A: ]
The converter 165 converts the voltage into an analog voltage and converts it into the high-voltage charging voltage.
Controls the output current of the source. 306 is a charger for peeling
, the peeler charger 306 is connected to the high voltage power supply 161 for peeling.
connected to the output. The high voltage power supply for peeling is AC output.
It has become a strength. 305 is the developed image on the photoreceptor 301.
A transfer charge 17 for transferring toner to paper;
The photo charger is connected to the output of the high voltage power source 62 for transfer.
Yes 3: The high voltage power supply for transfer is the transfer chip 1.
In addition to the V output, a developer bias power supply is also built-in.
The output line $38 is connected to the developer magon 1-roller 308.
It is continued. At this voltage, J: is applied to the magnets 1 to 9.
A bias voltage is applied to the controller 308 to provide an embedding bias.
available. □33 is the heater run V of the fuser, and one side
is connected to one of the ACI OOV power supplies. The other side is connected to the second contact 164 of the MC relay 131.
Now, one side is connected to the heater drive circuit 166.
ing. Therefore, the heater lamp 333 is connected to the MC relay 1.
It operates only when 31 is ON. Also, heater drive circuit 1
Two human input signals 833 and 839 are input to 66.
TeJ5S, S33C Fixing unit inner shown in Fig. 14 above
This is a signal from the master 334, and is a density control signal for the fixing unit.
It is. The s39 is from Microbrosenser 101.
Forced OF of heater lamp 333 + = double signal present. Figure 16 is shown in Figure 13 (Puruley IJ”-ScanModel
3 is a detailed circuit diagram of the motor 312 and its drive circuit 118. FIG. In Figure 16, 312 is inside the laser scan motor.
FIG. LO2, LO3, LO4 are motor
180, 181, and 182 are the motors, respectively.
This is a Hall element that detects the position of the motor's rotor. 183
, 184, 185 are the Hall elements 180, 181.1
82, and its output is a comparator for the drive circuit 11.
Driving the motor coils LO2, 103, and LO4 in
power transistors 171, 172, 173
Connected to the base through resistors R26, R27, and R28.
ing. Further, the power transistors 171, 172.
There is a base resistor R2 between the base and emitter of 173.
3, R24, and R25 are connected to each other. motor
With the rotation of the rotor, the Hall elements 180, 181
゜182 is 180. ．． Turn on 181 and 182 in order
. Therefore, the outputs of comparators 183, 184, and 185 are also
The level becomes LOW in the order of 183, 184, and 185. Yo
So the power transistor is in the order of 173°172.171
It turns on and the drive voltage changes in the order of LO2, LO3 and LO4.
is applied to the laser scan motor 31.
2 rotates. Also, the output of comparator 185 is a diode.
Through the code DO2, the resistor R30 and the capacitor CO6
, the frequency division voltage is passed through the waveform shaping circuit by the inverter 174.
It is input to the counter 175. Frequency division counter 175
The outputs of output terminals Q1 and Q2 are
176 and 177, and the speed switching
The output of the gate passes through an OR gate 178 to a PLL (feedback circuit).
(lock, loop) control IC's FG large input is connected.
ing. Also, the speed switching game h176.177
One input has the output of the speed control signal line 340 and its
The inverted output of is connected. Therefore, 840 is
In the case of bell, the switching gate 177 becomes effective and the frequency division counter
The output of 01 of the printer is F of the PLL control IC 167.
When input to G and S40 is )-11GI-Lebel
The switching gate 176 is enabled and the frequency division counter 175 is
The Q2 output is the FG large input input of the Pll-control IC167.
It will be done. Here, the input and output signals of PLL control til10167
To explain briefly, the P/S terminal (PLAY/5T
OP) stops at HIGH level, and stops at OW level.
Start with a roar. In the case of HIGH level, both AGC and APC terminals output
HIG) - becomes Lebel. FGfN is the motor to control
Rotary motor pulse signal input from N1. N2 is Book I
Signal for switching the frequency division number of the reference frequency divider inside C, 33/45
is the switching signal for the rotation speed of t-evening, and CPOUT is the crystal reference minute.
Frequency output signal, CPIN is reference frequency input, LD is lock
When the motor rotation speed is within the lock range according to the lock detection signal.
is HI3 +-+ level, other than that is L-OW level.
Output. AFC is the motor speed control system output.
8-hit D/A converter output inside L IC, A
I) C is the motor phase control system output and PLL1. Inside C
This is the output of the 8-bit D/A converter. Also l) L
The XOl connected to LIC167 is the reference frequency generator.
Raw crystal oscillator, COl, GO2 are oscillation capacitors
- is. The output terminals of AFC and APC of PLL control IC167 are
The front frame circuit is configured with resistors R12 and R13, and the operational amplifier 16
It is connected to one side input terminal of 8. operational amplifier 168
-1-12V is connected to the + side input terminal of the resistor R14 and R1.
A voltage divided by 5 is applied. Also, resistor R16
A negative feedback circuit is configured with capacitor CO3, especially]
The filter C03 acts as a bypass filter. subordinate
The amplification degree of the operational amplifier 168 is the input frequency above a certain frequency.
This is because it has a characteristic of attenuation. operational amplifier
The output of 168 is a pulse width modulation switching regulator.
It is connected to the terminal of the terminal IC169. 169
is a commercially available pulse width modulation switching regulator.
Ta I C'C-Yes. This IC169 and power transistor
Ta170. Diode DO1, -1il LO1, capacitor
Down switching regulator circuit with sensor CO5
It consists of C. In the input/output of IC169, one terminal
is the comparison reference voltage terminal, which is the base W voltage output inside IC169.
The voltage at terminal VREF was divided by resistors R17 and R18'c.
Reference voltage is applied. DE△D T-1ME terminal
is to regulate the maximum pulse width of the output, and the VRE
A voltage obtained by dividing F by resistors R19 and R20 is applied.
has been done. C1 and C2 are output terminals, and ten input terminals
-C, the pulse width changes depending on the voltage value of -C. That is +
If the side input terminal voltage is lower than the one side input terminal voltage, CI
, the pulse width on the 1-OW level side of C2 becomes smaller, and the pulse width of C2 becomes smaller.
The width in which the power transistor 170 is turned on also becomes smaller.
. Therefore, the voltage across the capacitor CO5 also decreases1, or
If the + side input terminal voltage is higher than the one side input terminal voltage J:
Contrary to the above, the pulse width of C1 and C2 increases and the control
The voltage across capacitor CO5 also increases. The rotation speed control of the scan motor 312 will be explained below.
do. The rotation start signal 342 of the scan motor 312 is LOW level.
When the bell is reached, AFC of P i-L control IC167,
The above-mentioned lock signal S41 is output to Riki Ryokawa of APC.
Since it is at t-OW level up to t-OW level, operational amplifier 1
The output of 68 is )l I G H level voltage.
It will be done. Therefore, the output pulse width of regulator [C169
becomes large and the voltage across the capacitor CO5 is approximately 4-16
It will be about V. And the motor rotor has stopped.
Any of the Hall elements 180, 181, 182 at the position
Since one of them is ON, motor coil LO2,
+03. Among the 1-04, the Hall elements 180 and 181
．． The coil corresponding to 182 is excited and the scan motor 3
12 starts rotating. The motor 312 is
Speed up the rotation. Now the level of speed control signal line S40
Since the signal is connected to t-1IGH, the frequency division counter
The Q2 output of 175 is the F of Pl-1-control IC 167.
It is added to the G input terminal. Therefore, the frequency division counter 175 is
It works as an 8 frequency divider circuit. Trust added to FGIN
The frequency of the signal is l) of the reference frequency inside LLIC169.
When it reaches about 96%, the lock signal LD S41 becomes 1-(I
When Q becomes +-1, FC and APC output levels are LOW.
The level (Ov) is not fixed, but the PLL IG internal D
/△] is switched to the output voltage of the inverter. Following C onwards
are the speed control system output AFC and the phase control system output A P
The scan motor 312 is kept at a constant speed by
It is controlled to become. In addition, in this embodiment C, printing is performed for a certain period of time (approximately 5 minutes).
When the command does not come from the data control unit 2, the scan motor
It is in standby mode and the output of the speed control line 340 is L.
Become OW level. Therefore, the frequency divider 175 divides the previous frequency by 8.
Since the frequency is divided by 4, the scan motor has a frequency of 4/8
In other words, the rotation speed becomes 1/2. This allows high speed rotation for long periods of time.
If this is done, reliability problems will occur with motor bearings, etc.
In order to prevent
There is. In this embodiment, during printing operation, that is, during high-speed rotation,
Approximately 12,000rpm, approximately 6000r during standby
It is pn+. FIG. 17 shows the radar modulation circuit 120 in FIG.
3 is a detailed circuit diagram of a conductive laser 344. FIG. In Fig. 17, 344 is a semiconductor laser diode.
Its configuration consists of a laser diode body 259 that emits light, and
, the output beam intensity from the laser diode 259 is monitored.
Monitoring photodiode, which is the light detection means for monitoring
It consists of 260 cards. 257 is voltage-current conversion means
(or first current driving means) for high frequency] - lunge
A resistor that modulates the light of the laser diode 259 in the
Anti-RFiO is a current detection resistor, 258 is a laser diode
a second current drive for applying bias current to the node 259;
R51 is the current limiting resistance of the transistor
, R52 is the base current limiting resistor of transistor 258.
be. 254, 255, 256 are laser diodes 2
A high-speed analog 1-cog switch for modulating the 59.
Each analog switch is set to HI on the gate (G).
When a GH level voltage is applied, the drain (D) and source
The resistance between the two terminals (S) becomes low and turns ON. LOW
Conversely, when a voltage of 1 novel is applied to the gate (G), the resistance becomes high.
1, the output from the laser 259 becomes a resistance and turns off.
This laser printer has three levels of power.
ing. First, the area corresponding to the white background on the paper is exposed to light.
To completely remove the electrical charge on the body 301
Turn on analog switch 254 with output P (ON)
In particular, the relay goo diode 259 is connected to the output P
(ON>. The second is the area corresponding to one black background on the paper at ℃, photoconductor 30
The charges on 1 remain as they are, and output '0'
'In state J-, that is, output P (OFF>, the analog switch
By turning on the switch 256, the laser diode 2
59 is the output OFF, that is, 1] (OFF). Third
is the first output P<ON) and the second output P(OFF).
Output P (Print density of 1 dot 1 to line at St-1>)
This is for raising the analog switch 255.
By turning on the laser diode 259, the
The output becomes P(SH) (Details of P(Sl-1>)
will be described later). Resistors R42 and R43 are analog switches 254°255
．． Short circuit protection resistance when changing 0N10FF of 256, 249
, 250, 251 are the analog switches 254, 25
5,256 Gate Drino\-. CO9, C1
0, C11 is for speed-up] Ndenri, R47
, R48, R49 are driver 2/19 to the goo 1,
The input resistance of 250 and 251, 1°246, is 3 N A N D K-1.
When all inputs are at HIGH level, the output
The power becomes LOW level and the analog switch 254 is turned on.
ON, the laser diode 259 outputs the output P(O
N) state. The first of the three inputs to Goo 1 is input
C is connected to the output of the inverter 253, and the inverter 25
3 input is print data signal 547 (1-(IG+-level)
(prints at L-OW level).
ing. The second is connected to the output of inverter 252.
The input of the inverter 252 is the shadow signal 848 (+
-4I Shadow signal at GH level, A)) at l-OW
It is connected to the. The third is laser enable signal E+5
l) (Laser enable at HIGH level, l-OW
(Laser forced OFF). Follow ℃
The output of 246 to the NAND goo 1 becomes LOW level.
The condition is that the laser enable signal 849 is
, shadow signal 348 is LOW, print data (n; month 8
47 is 1. - When it is ow. Next, 247 is 3
Can you tell me about the three gate inputs with N A N D goo 1?
1-(I
turn on the analog switch 255, and turn on the analog switch 255.
The diode 259 enters the output P (SH) state.
. The first of the three input gates receives the shadow signal 84.
8, the second is the inverted signal of the print data (iEi No. 347).
The third one is the output of the inverter 253, which is the output of the laser
- respectively connected to the enable signal S49. subordinate
Therefore, the output of the N A N D gate 247 becomes LOW level.
The condition to become a bell is that the laser enable signal S49 is
HrGI-1, shadow signal 848 is HIG)-1, mark
The character data signal S47 is the end of the OW. Next 248
is a 2OR gate, and one of the two gate inputs
When one gate input becomes LOW level, the output becomes LOW.
level, and turn on the analog switch 256.
, the laser diode 259 is in the OFF state
The state becomes FF>. 245 is a simple pull and hold Ic,
The output of the laser diode 259 is
(SH). AN, ALOG-INPtJT is the analog to sample
Voltage input, SΔMPLEC is a small lead capacitor CO
8 connection terminal, S T ROB E is 1 non-bring
This is the strobe signal terminal for the ripple strobe signal.
846. 237 is A pair of FET input
It is a voltage amplifier and constitutes 7 voltage phono circuits. , DO3 is a Zener diode and laser diode 2
It is regulated to keep the number of people within the limit of 59 people.
Ru. Also, an integrating circuit is constructed with resistor R40 and capacitor CO7.
The resistor R41 is connected to the voltage of the capacitor CO7.
This is a discharge resistor that discharges aj at a constant rate. 23
G is a non-analog switch and its gate (G) is a battery
The input of the buffer 244 is connected to the
A sample signal S45 is input. 253 is for level conversion
The transistor R39 is the transistor for charging the capacitor CO7 described above.
Acts as a current limiting resistor during power supply. R38 is a transistor
235 is the base current limiting resistor, 234 is the north comparison means.
], and this comparator is connected to the resistor R34.
, has hysteresis characteristics due to the action of R35.
. The resistor R34 is connected to the j side of the comparator 234.
The output voltage of the laser monitor amplifier 232 is applied through
has been done. 232 is from the laser diode 259
increasing the output of photodiode 260 to detect the optical output of
It is a width converter and serves as a current-voltage conversion means.
Ru. Resistor R32゜R33, VROl is the operational amplifier 2
This is a resistor that regulates the amplification degree of 32. Therefore the volume
Amplification of operational amplifier 232 by changing VRO1
You can change the container. R31 is the semiconductor layer.
Output load of photodiode 260 in laser 344
It is a resistor and is proportional to the output current of the photodiode 260.
voltage can be obtained. Light output of photodiode 260
Figure 19 shows the relationship of short circuit current 1s to PO. No.
In Figure 19, IS is the monitor current and Po is the laser radar.
The optical output of the diode 259 is shown. Output of said P(ON)
is approximately 6+11W, and the output of P (81-1> is approximately 4n+
w, P (OFF) is O. Yota1-Δ~A,
l-Δ-B is a two-way laser diode monitor
represents a characteristic. Usually the polycomb VROI is
When the laser diode optical output is 5mW, operational amplifier 2
The output voltage of 32 is adjusted to be about 3■. Therefore, to graph L in Figure 19 ~ A and l A-8
Even with these characteristics, the above-mentioned Borico, -mu VRO1 was investigated.
I am now able to adjust it. 238 indicates whether the laser diode 259 is emitting light.
This is a comparator that checks whether the
The output voltage of the operational amplifier 232 is applied. Also
The - side is divided by resistors R36 and R37 and has a voltage (
In this case, about 2. (set to OV) is applied
. Therefore, at ℃, the laser diode 259 emits light, and its output
The power of the bell is about 2 mw, from LOW level to LI I G.
It changes to H level and the laser ready signal S43 is output.
Ru. In addition, one side input terminal of the comparator 234 has a recorder.
The laser light intensity setting voltage is applied. The set voltage is
Analog switch 240nu comes from either side of 241
Given. That is, the analog switch 240
Laser output 1〕<ON) turns on at a fixed time and turns on.
The output voltage of the chief A lower 239 is the comparator 2.
34 is applied to one side input. Voltage follower 23
The input terminal 9 is connected to the main exposure terminal, which is the first voltage variable means.
The voltage is divided by the light adjustment volume 360 and resistor R45.
voltage is input to the main exposure adjustment volume.
One of the comparators 234 is
The voltage at the side terminals also changes. Also, the analog switch 241
is turned on when setting the laser output P (Sl-1).
The output voltage of the voltage follower 239 is connected to a resistor R.
46 and a shadow exposure adjustment voltage which is a second voltage variable means.
The voltage divided by the volume 361 is applied to the comparator.
The signal is applied to one side input terminal of the data input terminal 234. Voltage above
Gifollower 239, analog switch 240, 241,
Main exposure adjustment volume 36o, resistor R45, shadow
C Exposure adjustment volume 361. Optical output setting with resistor R46
constitutes a means. In addition, the monitor photo die A-
code 260 'c - detected and amplified by monitor amplifier 324.
Compare the voltage with the set voltage using the comparator 234.
, the circuit that integrates the comparison value is called optical output stabilization means.
Ru. Then, switch the nn analogue switch 240, 241.
is switched by the main exposure setting signal S/14. That is, the main exposure setting signal S44 is at a LOW level.
When the output level of the inverter 242 is HIGH
The analog switch 241 is turned on. Further, the main exposure setting signal S44 is at a HIGH level.
In this case, the output of buffer 1243 is at the 1-11GH level.
Then, turn on the analog switch 2401fi. Also
, the outputs (S side) of the analog switches 240 and 241 are:
It is also input to Voltage Nooro 7261 and W! describe
horizontal synchronous pulse detection comparator of beam detection circuit.
The voltage filter is used to correct the threshold level.
Roa 261's Deno JS50 is used. Next, the laser diode used in this printer
The current-output characteristics of Figure 18 is I
It is a graph of F-PO characteristics. TC-0℃ is laser da
IF-PO characteristics when case temperature of ioode 344 is 0℃,
Same < TC=25℃, when case temperature is 25℃, TC=50
°C is the IF-PO characteristic when the case temperature is 50 °C. K
Taking as an example the characteristics of the laser diode with a temperature TG = 25°C,
The current jF flowing through the ode 259 is increased sequentially from O.
Then, the optical output po starts to be output from the point of about 50mA.
. Then, at the point of IF=68mA, the P(ON
The optical output is 6 mw. Therefore, even when TC=O'C, the optical output PO is output.
Starting point is about 4011I, so the above
By turning on the transistor 258, the laser
-When the enable signal S49 is at the 1-11GH level
always flows the bias current IFB, and for the laser modulation
The power loss of transistor 257 is reduced.
ing. Therefore, the laser modulation transistor 257 is
Due to the action of the bias current IFB, it is extremely stable even at high temperatures.
stable operation is guaranteed. Also change the laser.
For example, the amount of change in current required to adjust
In case, the value of lF25-rFB is <, the voltage of lF25
Compared to directly driving the current with transistor 257,
To significantly improve the accuracy of the light amount stabilization operation described later.
Can be done. Also, as is clear from the graph, the laser
As a characteristic of the iode itself, the output varies considerably depending on the concentration.
The above-mentioned optical stabilization circuit becomes necessary as the laser light intensity stabilizes.
Detect the amount of light from the monitor with a 2'60 meter
The short circuit current 1s of the photodiode 260 is always the same.
Controlled to be quantitative. Because Figure 19?
It is also clear that the monitor short-circuit current Is and laser da
The optical output po of the iode 259 is perfectly proportional.
Therefore, if the monitor current Is is kept constant, the optical output Po will always be
is kept constant. Also, the temperature of the photodiode 260
The drift caused by 1 is also very small, even if the temperature changes.
However, the amount of change in optical output can be ignored. Next, Figure 17 and
Using Figure 20, explain the operation of the optical output stabilization circuit described above.
I will explain. In FIG. 20, the laser enable signal S49 and
When the sample signals 845 both become 1-(IGH level,
Transistor 258 in FIG. 17 is turned on, and resistor R5
A bias current (
Approximately 30 mA) flows. Also, at this time, the print data signal 847 and the shadow signal
Since both 848 are at 1-OW level, the gate
Out of 246, 247.248, only gate 246 has input.
All outputs are at 1-11G H level, so the output is OW.
Analog switch becomes level 254, 255, 256
Of these, Ana [1 GSUITSUJI 254 becomes ON state. Ma
In addition, the sample signal S45 becomes 1-11GH.
knee'), the analog switch 236 is turned on. this
At this time, capacitor CO7 is still uncharged.
Due to the condition, the output of the operational amplifier 237 is Ov.
, the base of the laser modulation transistor 257 t) OV
becomes. Therefore, at this point, the laser diode 249
Since only the bias current flows through, the characteristic shown in Fig. 18 is obtained.
As you can see, laser diodes do not emit light. Leh
photodiode 260 for monitoring the diode
Since the laser is not emitting, the monitor current is 1 s.
is O, and the output of the operational amplifier 232 is OV.
Since it is output, the output of comparator 234 is LC)
It becomes W level and the transistor 235 becomes OFF state.
. Since the transistor 235 is OFF, the capacitor CO
7 is charged through resistors R39 and R40. child
Resistance R39°R40 when charged, capacitor
The time constant of CO7 is selected to be around 20/50 msec.
. If this value is very small, the stabilization circuit will respond too quickly.
, the fluctuation in the laser light output level increases. Matataa
If the difference is large, the response will be poor and it will take time to stabilize the optical output.
It takes a while.] A charge is applied to the capacitor CO7.
As a result of the
The output voltage also increases gradually. Therefore, the number 1 for laser modulation is
As the base voltage of the resistor 257 rises, this
Current flows through the controller. At this time, the transistor 257
Rector current 1cLt (VB-VBE(SAT))/R5
The current value becomes 0. The laser diode 259 has the above-mentioned
Bias current IFB from transistor 258 and the transistor
An additional current IF with the current IC from the transistor 257 flows.
It will be done. Then the current IC/4 increases and the laser diode
The forward current IF of the board 259 is about 50mA (TC=2
5℃), the laser diode 259 emits light.
. As the laser diode 259 emits light, the above
The monitor current of the monitor photodiode 26.0 is
Operational amplifier 2 by flowing according to the emitted light output
32, the input terminal voltage increases, and the output voltage also decreases to the input voltage.
A value that amplifies the pressure is output. and op amp 232
The amplification degree is relative to the output of 1 mw of laser diode 259.
so that the output voltage of the operational amplifier 232 is approximately 0.5V.
Since it is adjusted in advance by the volume VR,01
The optical output of the laser diode 259 increases to approximately 2
When the output voltage of the mW and A amplifier 232 reaches approximately 1V, the
The output signal of the comparator 238 is C11-Ready.
Signal S/13 is 1-, OW to 1-11 GH level
Changes to and one side input terminal of the comparator 234
Since the main exposure setting signal 844 is at LOW level,
Shadow exposure level (light exposure level) through analog switch 241
Output P(Sll))? [Pressure is applied.] this voltage
depends on the sensitivity characteristics of the photoreceptor 301!・Dough exposure level
The voltage is set by the shadow exposure setting volume 36 in the operation section.
It is set by 1. Currently, the average value of Mitsuide
It is said that the voltage is 2.0V, which corresponds to a force of 4mW. Therefore
The optical output of laser diode 259 increases and the comparator
When the input terminal voltage of the input terminal 234 becomes 2.0V or more, the
The resistor 235 turns ON, and the capacitor CO7 becomes a resistor.
It is discharged through R40. Therefore the laser
The base voltage of the modulation transistor 257 also decreases and the laser
-The optical output of the diode 259 is 4 mW or less. Leh
When the optical output of the laser diode 259 becomes less than 4mW, the
The + side input terminal voltage of the comparator 234 is also below 2.0V.
Then, the transistor 235 turns OFF again. And again capacitor "CO7" is resistor R39, R40
, is charged up through . Then the laser
Diode 259 again changes the optical output around 4mW.
By moving, the comparator 234 becomes 0N10FF.
Repeat the action at regular intervals. Note that this comparator 234
has hysteresis characteristics, making comparison judgments more stable.
and can make reliable decisions. and said resistance
Due to the integral effect of R39 and R40, the capacitor CO
The voltage across 7 approaches the value of VOl in Figure 20 and becomes stable.
. And the laser ready signal MS43 is the 1st GH level.
Microprocessor 101 outputs the output port after
After the predetermined time t6 has passed through the shadow level sample.
The pull strobe signal 846 is input. Samples
When the probe signal is output, the sample and hold IC24
5 is input to the ANA L-OG-INPUT input terminal.
Voltage VO1 of capacitor 9-CO7 (20th
) is sampled and held, and the hold capacitor CO
Store that voltage in B. Follow-C, Sample Straw
B18 Sample and hold IC after JS is turned off
The above shadow level P (SH) is output to the output OUT.
The control voltage VO1 continues to be output. Next, sample and hold the shadow level P (Sl-1)
When the operation is finished, the microprocessor 1.1 switches to the output point.
HIGH the main exposure setting signal s44 through the
-Switch to Lebel. Therefore, one side of comparator 234
Connect the voltage to the input terminal through analog switch 240.
The output voltage of the range follower 239 is applied. Polchie
Shift A lower 23 outputs have main exposure level (light output
P (ON)) voltage is being output. This voltage is photosensitive
The main exposure settings in the operation section are adjusted according to the sensitivity characteristics of the body 301.
With the voltage set by constant volume 360,
is the average value of 11゛3, which corresponds to an optical output of 6mW.
, OV are output. therefore] npare
The output of the input terminal 234 has one side input terminal 3. Switched to OV
As a result, the 1-transistor 235 becomes LOW level.
It becomes OFF state. Therefore, capacitor CO7 is further
Transistor for laser modulation by charging up
The base voltage of the laser diode 259 is also increased.
Light output is also increased. The laser diode 259
When the optical output is around 6mW, the output of the operational amplifier 232 is
The voltage v232 becomes approximately 3V. Output of operational amplifier 232
When power type R: becomes 3V or more, set the shadow level as described above.
As in the case, the output of the comparator 234 is 1-11 GH
The transistor 235 turns on, and the capacitor
CO7 is discharged through resistor R40. Yo
The base voltage of the laser modulation transistor 257 is also
On the hour, the optical output of the laser diode 259 is 6mW or less
become. Leading horn of Radhe diode 259 is 6mw
When the voltage is below, the + side input terminal voltage of the comparator 234
becomes below 3.0V, and the h-run raster 235 turns off again.
F. And again content 1 no CO7 is resistor R39
, is charged up through R40, and the laser diode
The optical output of the card 259 is 6 mW or more. In this way, the optical output of the radar diode 259 is 6mW.
Comparators 2 and 34 operate as 0N10FF, centering on the near
is repeated at regular intervals. Then C1 said resistor R39 and R4
Due to the integral effect of zero, the voltage of capacitor CO7 becomes
It approaches 0 figure VO2 and becomes stable. and the main exposure level.
When the bell setting is completed, the microblower sensor 101
, start the operation of the υ sampling timer described later and print.
A writing operation of data to the photoreceptor 301 is performed. sample
The timer is activated every time a laser beam detection signal (described later) comes.
is triggered one after another at a certain periodic interval, and the print data is
Only the part other than the divination operation, that is, the section in Figure 20a
Outputs the ring number S45. and print day
In the section of data S47 and shadow data S48, samples are
The signal 345 is 1. − Since it is at OW level, Ana
The log switch 236 is turned OFF. Therefore, the printing date
J: laser for data D47 and shadow signal S/18
The diode 259 is a laser beam in the modulated printing area.
The level of the optical output of the diode 259 is P(
There are three levels: ON>, P (St-1), and P (OFF).
Becomes a bell. 1, the first is the print data signal S, /17
is O, FF, that is, the shadow signal is at the 1-OW level.
OFF or LOW level (printing output)
The NAND gate 246 is established and the analog
Only the log switch 254 is turned on, and the modulation transistor is turned on.
The main exposure level voltage VO2 is applied to the base of the star 257.
is applied, and the optical output of the laser diode 259 is P(O
N>=6 mw. The second is that the print data signal 847 is O.
F F, when the display signal is ON (print output
(as a halftone) NAND game h goo 4
7 is established, and only the analog switch 255 is turned on.
, the sample is connected to the base of the modulation transistor 257.
Hold [Output voltage VO1 of C245 is applied, and the output voltage VO1 of C245 is applied.
The optical output of the laser diode 259 is P(SH)-'4mw
becomes. 3rd, print data signal S47 is ON, shadow
When the signal is OFF (black output for printing)
Then, the OR gate 248 is established and the analog switch 256
only is turned ON. Therefore, the modulation transistor 25゛7
The base of is shoeed to GND and becomes OV, so the laser
The optical output of the laser diode 259 is l) (OF I”
)-・0 and no light is emitted. In this way, the first mark
Characters are performed. Then, when the printing is finished, the MicroPro
Sengu 101 has main exposure settings through Kapo-1~
Set the signal S4/I to l-0W level again and perform shadow exposure.
Reset level P (SH). Therefore the comparator
The voltage at one side input terminal of 234 is at the shadow exposure level.
The set voltage j]- becomes 2.0V. Therefore, transistor
The capacitor 235 is ON and the capacitor CO7 is the discharger.
As the voltage increases, VCO7 becomes smaller. laser here
This is the second time to explain the optical output stabilization operation of diodes.
During the printing operation, if the laser diode 344
It is assumed that the case temperature is raised by Δ]-. Figure 18
As is clear from the characteristic diagram, the case temperature increases.
The IF-Po characteristic curve of the laser diode is shown on the right.
F1~ and the same current is passed through the laser diode 259.
In this case, the optical output P O will decrease. therefore same
In order to obtain a light output of
The current △I must be increased by 1
. Therefore, the voltage VCO7 of capacitor υCO7 is the same as the first setting.
Standard form 11 = Voltage △v corresponding to the above △IF than VO1
The laser diode is constantly set to VO3 higher by 1.
The optical output of 259 is the same as the first setting P(SH)=
4 mw. And like the first time, Zamp
sample hold IC by strobe signal 84.6
The shadow exposure level P (ON) is set in 245.
be exposed. At this time as well, the case of laser diode 344
Due to the increase in temperature, the voltage of capacitor CO7 decreases.
The pressure is a correction voltage △V2 depending on the temperature.
The settings are made, and the second printing is performed after the settings. child
Shadow exposure level P (SH) and main
Exposure level P (ON) is extremely low due to the function of the stabilizing circuit.
High quality by being held at a precisely constant level
Can print. Furthermore, the main exposure level P (
ON) is always on except when writing print data as mentioned above.
A light intensity stabilization operation is performed to keep the light output constant.
Ru. Also, regarding the shadow exposure level, the print opening of each print
Before the start, have them perform a thimble bold motion, and then
The light amount stabilization operation during print writing operation, such as the exposure level, is
1. Not allowed to do so. This requires multiple 941 circuits and is expensive.
The shadow level changes compared to the fluctuation of the main exposure level.
The print quality is auxiliary, and even if it fluctuates a little, it will not affect the print quality.
This is because it does not have much of an impact. Note that the photoreceptor 201
The setting voltage input to the comparator 234 according to the sensitivity characteristics
When changing the pressure, use the main exposure setting volume
Adjust by changing 360. This main exposure setting polyj
, -m 360 is the input voltage of Porty Schiff A lower 239.
It is designed to be variable. Therefore, this main exposure
By changing the setting volume 360, the light output when P(ON>
Power setting voltage can be adjusted. On the other hand, the optical output at P(SH)
The set voltage is the output voltage of the porty shift A lower 239.
with resistor R46 and Shitodo exposure setting volume 361.
It is a partial pressure. Therefore, the main exposure setting policy
By adjusting the comb 360, when P(ON>, P
(3rd day) The light output setting voltage changes proportionally.
This makes it possible to maintain a constant relationship between recorded temperature and applied voltage.
Wear. Therefore, as in the past, when P(ON>, P(SH)
The complicated operation of adjusting the 69 constant voltages at the same time is
Adjustment is easy without any manual work. FIG. 21 shows the beam detection circuit 121 and the beam detection circuit 121 in FIG.
3 is a detailed circuit diagram of a beam detector 346. FIG. In Fig. 21, 346 is a beam detector with a responsive
It uses a very fast PIN diode. Also this
The beam detector 346 is connected to the photoreceptor 301 as shown in FIG.
This is the reference pulse when writing print data to the
The pulse width and pulse location must be very accurate.
I have to. Therefore, the pulse width and pulse generation position etc. are polygon mirrors.
- If the rotation of 313 changes every time the beam scans, it will be exposed to light.
The writing start point on the body 301 changes and the print quality deteriorates.
Deteriorate. The anode side of the beam detector 346 is a load resistor.
1<52 and i6 speed which is a comparison means through resistance R55]
It is connected to one side input terminal of the comparator 262. Ma
A resistor R53 is connected to the + side input terminal of the comparator 262.
The voltage divided by R5/1 is applied through resistor R56.
It is. Also, a noise removal circuit is connected in parallel to the resistor R54.
A capacitor C12 is connected. Also, R57 has hysteresis.
Positive feedback for lcl with lysis characteristics
The locking resistor, C13, outputs feedback at high speed.
Feedback capacitor to improve force waveform
It is. In addition, the + side input of the comparator 262 has a die
Ord D40°Threshold Bold through resistor R57
A variable voltage 350 is applied. This thread 1 hold
The variable voltage 850 is connected to the analog switch 240 or
Output of analog switch 241 (output of optical output setting means)
(See Figure 17). Comparator 26 is shown in Figure 22.
2 one side terminal input waveform length of the beam detector 346
What is the relationship between the output waveform and the + side terminal voltage of the comparator 262?
and at that time] the relationship with the output waveform of the inverter 262.
Accepted. The laser beam passes over the beam detector 346 at high speed.
When it passes, a pulse is emitted from the beam detector (PIN diode).
current flows through the first input terminal of the comparator 262.
The waveforms a and b in Fig. 22 are input. now comparator 2
The voltage on the + side input terminal of 62 is the threshold variable voltage.
Since voltage 850 is not applied, the voltage VO6 is always low.
If it is applied, the output wave of the comparator 262
In the case of waveform a, the output waveform will be as shown by the dotted line J,
In the case of waveform S, the output waveform is shown by a solid line. Here the waveform
a is a case where the sensitivity of the photoreceptor 301 is low, and during the main exposure
When the laser output is 5mW or more, the waveform is reversed and
When the sensitivity is high and the laser output is less than 6+nw
show. As can be seen from this output waveform, the comparator 26
When the + side voltage of 2 is kept constant, the output waveform is that of the beam detector.
It varies greatly depending on the optical filter used in 346.
cormorant. Therefore, use threshold variable voltage 850.
If the light intensity of the laser beam is large, the voltage of VO5
If the voltage is small, correct it to the voltage of VO6.
As a result, the output waveform remains constant as shown in Figure 22.
It is possible to maintain the Figure 23 (A>, (B)) shows the beam detector (P4N detector).
346. FIG. Figure 23 (A>,'
In (B), 410 is a light receiving element, 411 is an electrode wire, 4
12 is a mask plate, 413 is a laser scanning beam, 414
415 is the photodetector mounting base, and 415 is the output lead wire.
Indication 1゜The PIN diode used in this example is
Optical element shape 2.5X2.5Il1m, response time 4n5
It is from cc. Sea 1f-beam 413 rotates polygon mirror 313
The object is scanned at a constant speed in the direction of the arrow in Figure 23 (Δ).
It is. Then, the laser beam 413 receives the light.
When passing over the element 410, the laser beam 413
An output current flows according to the optical output. At this time, in Figure 21
The input waveform of the one side input terminal of the comparator 262 is the 24th input waveform.
One waveform is shown in the figure. In Fig. 24, input waveform 1 is the received light.
The waveform before the output waveform when there is no mask on the element 410.
Noise occurs afterwards. This is the light receiving element 410 itself
is detected when light is originally stationary or is being scanned.
It is also used primarily for the detection of very slow speed light.
The end face of the light-receiving element 410 has poor parallelism.
is considerably large, and the laser beam passes through its end face.
This occurs when the output current becomes unstable. subordinate
In order to solve these problems, the light receiving element 410
A mass that prevents the laser beam 413 from passing on the light receiving surface of
beam on the end face by attaching the
This prevents output waveform cracking during passing. The mask 41
2 is a light receiving element 41 as shown in FIGS. 23(A) and 23(B).
The part that does not include the end face part of 0 and the electrode wire 411 lead-out part
The laser beam 41 has a structure with four square windows per minute.
3 is only when passing through the windows at the four corners.
Light is made to fall on the optical element 410. This J: U
This structure improves the precision of the window part of the mask, especially
to the comparator 262 by increasing the parallelism.
The input waveform of contains noise as shown in input waveform 2 in Figure 24.
You can obtain a waveform that does not Figure 25 shows the print data circulation control circuit in Figure 13.
119 is a detailed circuit diagram. This print data writing control time
Road 119 main 'tK 18 function as interface
of the paper on which the print data S57 from the circuit 122 is printed.
Insert into a predetermined area on the photoreceptor 301 according to the υ size.
Convert the parallel print data S57 to serial
and sends it to the laser modulation circuit 120. Also, the above printing
In order to improve the printing quality from the data contents of data S57.
Generates a shadow signal and combines it with print data.
Both are sent to the laser modulation circuit 120. Also laser
The modulation circuit 120 sends out the signals necessary for setting the optical output.
. Also, the print data is sent to the interface circuit 122.
Timing signal for controlling output from the data controller 2
Send out. The other is the storage space required for maintenance.
Generate printing patterns. In FIG. 25, 186 indicates the laser modulation circuit 120 and
and the signals necessary for control within the print data writing control circuit 119.
input/output port for transmitting and receiving signals, 187.
188 is the control of the writing position of print data, test pattern
A counter that controls generation, laser light output sampling, etc.
It is a counter/timer. 189 is a crystal oscillator and is an image chromatizer.
The oscillation frequency is approximately 32M as the reference clock for the clock pulse.
It is Hz. 190 is a circuit that generates an image clock.
The pulse corresponding to the minimum modulation unit of the laser beam
Avoid generating gas (approximately 8 Ml-1z). 191 is Inter
[Bye 1 to unit (8 bits) received from the chair circuit]
Control counter for serial conversion of print data, 1
92 generates a test pattern used during maintenance.
(When this circuit is selected, a test print will be performed.)
and the various adjustment switches mentioned above are adjusted), 21
1 is the test pattern control signal and interface circuit 1
a multiplexer for selecting print data from 22;
210 is the 8-bit data from the multiplex controller 211.
Shift register that converts parallel data to serial, 2
13 and 214 are line memories that temporarily store print data.
The memory capacity is 4096 bits, and 212 is the memory capacity of the above library.
Nmerly-213. 214 address counter, 215 is the test pattern
This is a decoder for creating the signal 8 that controls the tone generation circuit.
Ru. 226, 227, 228 are print data and de
Flipf to match the data transmission timing! ]
It's a whelk. Here, the BY details of the counters 187 and 188 will be explained.
It becomes clear. 275 is laser light for each line (horizontal compound line)
This is a counter that determines the timing for amount correction, and is a reference clock.
A power shift is performed based on the signal S53, and optical single correction is performed.
Sample signal 875 used for line start and line start
is generated. 276 is a cover for horizontal recording start positioning.
07 output from the control counter 191 (
Bidet 1st dot unit signal) Based on S83, Karan 1-
Horizontal recording start position (Ref 1 - Margin) signal 8
84 is output. 277 determines the horizontal recording end position.
The video counter is a counter that outputs the video signal.
Based on S83, Karan 1 ~ is performed and the writing of Ge=-ta is completed.
It outputs a 16 (write margin) signal 5F)5. 278 is a counter for vertical direction recording start positioning;
Paper leading edge position (page) output from output port 186
1-Tub) Faith @S74 and Q of flip-flop 204
Based on the output of the gate 198, the output and the output are powered by two people.
The page top count output 876 is output 4.
1-gru. 279 is a counter for vertical direction recording end positioning;
Counting is performed based on the output of gate 198 as described above.
, outputs a page end count signal 877. 280
is a counter for vertical test pattern control, and
Counting is performed based on the Q output of the flip-flop 240.
and outputs a test pattern control signal S79. Figure 26 shows the interno toy circuit 1 in Figure 13.
22 is a detailed circuit diagram. In Figure 26, 263 is the
Command data and print start command signal from the data controller 2
status data to the data control unit 2.
An input/output port that sends ready status signals, etc. of the print control unit.
264 is an 8-bit bit for both command and print data.
Toratsuchi. 265 is a transformer for the interface data bus 859.
It is a receiver/ceiver. 266 is on data bus S59
A decoder for the data selection signal 860 that specifies the data of
269 is the data when receiving command data and print data.
Controls the data sending timing to the data control unit 2
We accept orders for BSY double signal control circuits. Next, details of the interface signal will be explained. No.
In Figure 26, 359 is a bidirectional 8-pit data bus.
, S60 is the data selection signal on the data bus 859
By the combination of C0M and ID5T'Δ, the above data
data on the data bus S59. S61 is IPr
l) Y print system i11 part 100 is ready.
A signal to let you know. 862 is IPREQ and data control unit 2 starts printing.
A signal for permitting the transmission of the signal IPRNT, S63 is the IPRNT signal.
At END, the data control unit 2 side receives this signal.
Stops sending print data. 864 is IH8YN, requesting to send one line of print data
signal, S65 is a print start command signal under IP and RN,
830 is a strobe signal for command and print data.
Name 15TB, S66 is I F3 S Y and said straw
t'3s30 sending permission and status data j
- This is a signal that allows reading on the side of the control unit 2. Commands and print data are sent to transceiver/receiver 26
The status identification signal S68 is output to the output line 872 of
FF is output when it is F. Output line S72”-
The data is transmitted to the data control unit 2 by the strobe signal 330.
64. and for command data, enter
It is latched to the output port 263 and identifies the command.
After that, execute the specified action of the command. Also, the print design
In the case of data, the above-mentioned print data writing control is performed from output line S59.
sent to the circuit. Also, the status data is sent as follows.
It is done like this. Print status request command
By receiving the command on the control unit 100 side, the command can be responded to.
The corresponding status contents are sent to the status of the input/output boat 263.
set to the data output S71. The stay that was let
The data S71 enters the transceiver/receiver 265.
Powered. The input data is the status identification signal 86
When 8 is ON, it is output to data bus S 59 J-.
. Cloak and stator used in the main printing control unit 100
The details of each step are shown in Figures 27 and 28.
In this case, SR1 to 6 correspond to status 6 in Figure 28.
Oenoru Sdataus Request]? nd. PSON is designed to reduce the power consumption of the fuser 331.
Power save command, PSOF is in the power save state
This is a release command for the power save frame when not recording.
The operating power of the fuser 331 is reduced by the mode PSON.
To save power, use the power save cancellation command when recording.
Increase repower to normal value to PSOF and use toner
It is possible to fix the problem. , VSYNC is data control
j′ of the print data from part 2! 5 Command to instruct the start of output
MF1 to 9 are removed -[-Code specified command, TB
M1 to M4 specify the print start position on the paper.
Bottom margin specification command, SOF is side 17 exposure
Command to force 0FF71, C81 to C85 are
With the command to specify the cassette size, O81
A3 size vertical, C82 is A4 size vertical, C3
3 is A4 size horizontal, O84 is B4 size knotweed, C
85 specifies the vertical position of B5 rise. In Figure 28, while paper is being conveyed, paper is being fed and the printer is being printed.
A status indicating that paper is being transported in the printer,
The select switch 354 on the operation section is turned ON.
Data status, VSYNC request without indicating that it was pressed
The print control unit 100 receives the print start command and prints the print data.
Status indicating that data can be received
, manual feed notifies you that the paper feed mode is manual feed.
status, upper/lower cassette is in cassette paper feed mode.
The status and top display indicate the status of the selected cassette in the
The top/bottom margin is the top/bottom margin frame.
top/selected in (TBM 1-4)
Status indicating bottom margin status, cassette size
(upper row) and cassette size (lower row) are installed respectively.
Indicates the size code of the cassette being
, dest/maintenance is Tess [to/maintenance state
The status indicates that the data retransmission request is
Indicates when reprinting is required due to printing, etc.
During the wait, the printer will perform a constant warm-up of 5 units.
The status indicates that the
The power rape command (P S ON )
Indicates power save mode status. operator
The call was caused by a SARTUS 4 operator call cause.
Show what you are doing. Goobisman call is status
5. We acknowledge that the Levis-Mancall factor is occurring.
the law of nature. Tray full is used when the output tray has more than the specified number of sheets.
Indicates that there is paper and the tray is full. Dobouba
When replacing the toner pack, make sure the toner pack is full of toner C.
show. Paper jam indicates that paper has jammed inside the machine.
. No toner means 1 to no toner in the toner.
J0 cover A-Pun indicates that the front door is closed.
(I understand that there is no timing J-ler.
Indicates that there was a problem with data transfer. Fuser failure is fixed
There is an abnormality in the fusing unit, such as the fuser heater being disconnected or the temperature fuse being out.
Indicates that there is. Laser failure is laser diode
does not reach the specified output or the beam detector
Indicates that the system cannot be detected. Scan motor failure
The can motor does not reach the specified rotation speed even after a certain period of time has passed at startup.
Causes of not reaching the specified number of revolutions or of rotation after reaching the specified number of revolutions
I noticed that the rotation speed was out of the specified range. To replace the heat roller, use the fuser roller counter shown in Figure 15 above.
The fuser roller has reached a specified value and needs to be replaced.
shows. Drum replacement is also regulated by the drum replacement counter.
If the value is reached and the drum needs to be replaced, developer replacement is similar.
When the developer replacement counter reaches the specified value, the developer needs to be replaced.
In each case, indicate that it is necessary. Figure 29 shows beam scanning on the photoreceptor 301 in Figure 3.
One scan range of the laser beam including part 349 and its
Beam detection position and data writing position within the scanning range of
FIG. In Figure 29
416 is the beam scanning start point, 417 is the beam scanning end point
(The beam that has reached the end point 417 of the beam scan is
The beam scan is opened at time O by the next surface of the mirror 313.
The next beam scan starts from the starting point 416. 418 is bi
428 indicates the beam detection starting point of the beam detector 346;
The left end surface of the photosensitive drum, 429 is the right end surface, respectively.
show. 419 is the left end surface of the paper for M1 noise A3, 420
similarly represents the right end surface. 421 is paper 1 noise A3
Similarly, /120 represents the left end surface of the paper and the right end surface. /I2
1 is the data writing start point of the same U△3 size paper, 422
Similarly, indicates the end point including footer L). 423 is the left edge of paper size A6, 424 is the same
Right end surface, data writing start point for the same chair as 4251, 42
Similarly, 6 represents the end point of γ-ta V (inclusive).
427 represents the center point of the paper. d4 is from beam scanning 418 to the start of A3 Rizu River feeding.
distance, (15 is the same <A6 size" (to the opening point)
Distance 11. , d 6 is also the end point of the A0 size circle
Distance to 426 l1lI1. ．． d7 is A3 size writing
Each represents the distance to the end point. d8 is the beam detection point
418 J: Right edge of A3 size paper / up to 120
Table J-0 and d3 represent the range of one scan of the beam.
1,,d 14. d9. d 10 are A3 and
This shows the effective printing range on A6 paper. It is clear from the woodwork surface
As shown, the paper feed of this printer is always at the paper center point 42.
7 to the center, the dome detector position depends on each paper size.
The print writing start point from position 418 is short, and the following C
The beam detector 346 detects the beam according to the paper size.
After a period of time has elapsed, the data is
It is necessary to write the data. Do you want to control like this?
However, this Blink does not use a paper edge feeding mechanism.
Therefore, it is possible to print on the entire surface of the paper. Main implementation
In the example, the left and right margins on the left and right sides of the paper are set to 3mm.
Although it is set, it is possible to apply this to O. Also
For printers that use conventional edge-feed transport, normally go to 8.
One 1011111! i! degree margin is required, and
The disadvantage is that a large area of the paper is not printed.
be. Figure 30 shows the paper size and printing shown in Figure 29. The rear part is shown in the horizontal direction only - the entire surface of the paper is shown without C.
It is. In Figure 30, C/'13G is 6 sheets, 4
37 represents A3 paper, 419. /120°421.4
22,423.42/1.425,426.427
29 shows the same position as in FIG. 430 is the tip of the paper
end, 432 is the starting point of data N in the paper vertical direction 1], 4
31'4j; △3+l size paper trailing edge, 433 is A3
Size data company (indicates the end point. 434 is 6 samples)
The trailing edge of the size paper, 435 is the end of writing the Δθ resize data.
Shows the finishing point. Next, refer to the time charts in Figures 31 and 332.
1° Printing control unit 100 to explain the operation of the component device
Ready ¥31 P R1') Y 0 (S61)
The printer is now ready to print. At the same time, print start signal II) RFQO (362) is enabled.
becomes active. Next, the laser enable signal LDONI
(S49) rises to 1'. Ko (7) Cj No. 349
This turns on the transistor 258 in FIG. child
When , the data flip-flops 226 to 226 in FIG.
228 is not set, so the print data signal MS
47 and shi!・Both doe signals S48 are O'.
. Laser enable S49 is '1', print data is O
', since the shadow signal 348 is "O", the result in FIG.
Goo h 246 is established, and the analog switch 254 is turned on.
This causes laser diode 259 to emit light.
Shine. 1- and the monitor photodiode 260
The operational amplifier 239 is activated via the operational amplifier 232.
Operates, laser ready signal LRDY1 ('543)
occurs. Next, the horizontal synchronization signal H3YO (S54)
Then, the sample signal S M P T is output from the counter 275.
○ (S75) occurs and overturns 1, this (i; No. S75 is
416 to 417 in FIG. 29 that define paper size
The time corresponding to the distance 11td3 (distance of one line) between
1, which is used to let the line
It can be used to correct the light intensity at each time, or to be used as a line start signal.
use it. That is, by this signal S75, as shown in FIG.
gate 193 opens and the sample signal is output from gate 194.
S45 occurs, and this ripple signal S45 is shown in FIG.
Analog switch 236 is turned on via gate 244.
Therefore, the correction signal is applied to the laser diode 259.
In this way, the light intensity correction for each line is performed.
be exposed. PT'CTO (876) determines the leading edge of the paper.
The output signal of the counter (page top counter), P
ECT○ (877) is the counter that determines the end position of the paper.
This is the output signal of the page end counter. image
When it is time to write, make a VSYNC request.
sends the status of the client to an external device. VSYN due to stiffness
When a C command is issued and received, PTOP (S7
3) is out - C From that point t'S Y N C line number
Start counting. In the same way, how many lines should I write from that position?
(end position). This specified value can be changed.
top margin nl” and holatom merge
A tunnel 11F is provided. The above specification is made
Then, when VSYNC comes, one T is placed before the leading edge of the paper.
An OP signal is output. For example, a margin of 5 mm is required.
If so, count the number of lines including it. If the top margin is 110ll1, then
The corresponding data will be set in the timer. The position of the bottom can be determined in the same way. data on the timer
Once the data is set, open the gate and start counting.
and stands up when the count ends. Where from here to like this
Gate 20 in Figure 25 is where you decide whether it is
It is 1. 1. ,,S-1'0 (878) synchronizes
7 lippf 1] Q output horn of Tsubu 204 and To 1
Set by sYNc, the sample timer signal
It is reset when it goes up. This reset line
is in the LDON signal (349) in Figure 25 and is reset.
The reset line normally does not work and is forced to reset.
J: The sea urchin is turning. Flip 7 due to reset
The Q output of the 0 knob 204 is generated, and the clock generation circuit 19
0 counts the clock from the oscillator 189. This clock generation circuit 190 receives the clock from the oscillator 189.
Divide the clock frequency by 4 and convert the bit-by-bit signal into a line start signal.
It is output only while the number LST is set. this
The outputs are out of phase with the two scale signals S82 and 887.
8, this will synchronize the - line.
It will be done. VDAT'l is the print data signal (347), P
, /Due to the operation of the S conversion shift register 210 -C
Output as serial data. That is, l) /
The S conversion shift register 210 is a clock generation circuit 190
It operates by signal 382 from
When no voltage is applied, the output S86 is "0", and (
(No laser writing), I:]-code signal S88 is input.
Sometimes data D5 to DI2 are serially converted and output.
. At this point, gates 207 to 209 are used to divide 8 bits into 1 bit.
The period C will be loaded. load signal here
I will explain the timing of occurrence. As soon as there is a place I actually want to write about, my decision to go hunting changes.
The data will be deleted every time], but it is necessary to control this.
The counter is the left margin counter 27 in Figure 25.
6 (data is (19, dlo) in Figure 29 and light mark
Gin counter 277 (the data is dll in Fig. 29, (
112>. In this case, the setting is based on the center of the paper.
This defines the left and right distances. , t-1sYNc; 1. in synchronization with the signal. , ST signal
When (378) appears, flip-flop 196 is set.
As a result, Goo 1-198 sparkles and the power "J Nonta"
276 starts counting 1, in this case the count is
Don't count the video clock every single pixel.
3. It will be counted once every 8 hits.
Left margin is the count output that comes out every 8 pits 1~
Let's match N1m1 light margin NRIII
Counting is performed in synchronization with the LST signal ('578).
It will be done. Then, if you output the settings ()-C callan 1 to number
stand up Therefore, Goo 1 to 201 determine the vertical direction.
, since gate 199 determines the horizontal direction, both goo
i - Write to the next point where the output becomes (1, 1)
3. At this timing, the load signal is output.
Serialize data S86 from shift register 210
Convert and send. Line memory out signal and MOT (380) is an OR gate.
This is the output of port 222. This is line memory 213 and 2
1 to determine whether to send any of the 14 data
It is. Samurai no f5, this sending timing is flip flow
9, i.e., this flip is controlled by flip 203.
Each time a pulse is applied,
Since the output state will change, gates 220 and 221 will be switched alternately.
This will ask the line memory 213 or
214 outputs DOUT are read out alternately. line
The timing of writing f'A into memory 213 and 214 is also
gates 217 and 218 will open at intersection 7j and will be controlled.
Ru. In this way, -C uses the shadow method described later.
When using the
This is to make the process smoother. 1. Next, go to LD8 for N1 (B81) 4th: 31*
This will be explained with reference to 1. In this type of recording device, there is usually one photosensitive 30'I axis.
If the laser is not emitted in all directions, for example
If it is small → noise paper (like paper 458 shown in Fig. 113)
In many cases, it is only printed on paper (B5, A4, etc.), and for this reason
For the area near both ends that will not be used, apply 1 hener, etc.
will no longer adhere. Also, large size paper
(For example, paper 461 in Figure 43)
(There is also a usage area for small size paper 458.
The area is within the shaded area 459). For a long time like this
If you set up an area where no particles will stick to the blade after recording is complete,
Therefore, at the stage of scraping off the 1-boo and reducing the size, the unattached part
The contact resistance of the blade becomes large, causing scratches on the photoreceptor surface (
t t). With this device,
. J shown in the time chart in Figure 31: Sea urchin, for one piece
Immediately after printing for the paper equivalent is completed, line data A > signal I
DAONl (S81) is generated, and this generation period
Force the print data signal VDATI (347) within
Give J, sea urchin, by this action, accept the figure 113.
A line (image) rotating all over the axial direction of the photoconductor / 1.6
Write 0 and 463 after printing the equivalent of one sheet of paper.
Sea urchin (the above drawbacks are removed. In this case, the line
Data write timing is line memory out signal
The final stage data in the data of MO-11 (S80)
1 data of 1,000rT △tonn-1
Occurs when 1x passes over the eaves for a predetermined period from the time of rising 1.
1. Lines like this are not always
I also write it periodically after each sheet of paper has been printed.
It is not limited to 1, but it is medium to 1 (for example, 100 every 10 pieces)
The number of sheets to ) m may be set such that m<J. Next, refer to Figures 33 to 36 to determine the characters to be printed.
Look at the letters, etc. about adding “shadows”.
Also known as the shadow method, which is the method used for TC.
℃8T. Determining whether or not shadow method S/18 is generated (before, L
Input the data in the line memory 213 and 214 to the intersection n.
various gates 220 to 225 and three 7-lip flow
by the pins 226 to 228 and the gate 231 on the output side thereof.
It is done. Among them, flip-flop 227 is horizontal
Shadows based on level changes in direction (line direction)
For discrimination, the flip 70 knob 228 is in the longitudinal direction (vertical direction)
Contributing to the discrimination of Sha1 Miu based on changes in the level of
It turns out. In other words, from line number 213 onwards,
The serial data that you are trying to write is read out (this is the
When the Ritsubu flop 226 is set to cellar 1, the previous layer is
The data on the other side of In1 enters the Noritsubu flop 227.
For example, the current data is the data before 'o' C.
A shadow signal 348 is output when is 1'.
. Similarly, the data of the previous line and the data of the current line are
Yu and Goo 1~223゛C are compared, and an example (J current line
data is at the same horizontal position on the line before O' (print
7 lips and 70 knobs are in the throat of 1'.
This is where the shadow signal lives. In addition, both flips 70 knobs 22
A shadow signal is also generated when 7.228 is set.
. This state is expressed by the shadow out signal 5OLJT in FIG.
1 (886), T1 (S4
7), Shadow signal 5DAT1 (S48)
ing. Figure 33 shows the conventional situation when the Sea-Do method is not used.
34 shows the image pattern, and FIG. 34 shows the shadow pattern.
This figure shows the development pattern of the platform using signals. child
As shown in Figure 32, when printing the characters l-1 + sign,
It becomes very easy for children because it is (q).
. Figure 36 shows the intersection of vertical line S1 and horizontal line S2, in the upper right area shown in the figure.
Characteristic diagram PA does not show the relationship between exposure position and exposure energy in the area.
T1. PAT2 is the surface potential of the photoreceptor in the region not shown.
Characteristic diagram Q showing the relationship between and exposure energy = 1゛-, bottom left of the diagram
The characteristic diagram R1 shows the relationship between the exposure position and the surface potential in the area.
R2 is shown respectively. In this figure, Figure 33
And in Figure 34 (in the letters "8j" in the X direction
It must be an extract of ``Directions 114-21''. It is shown in the same figure.
The characteristics PAT1 and R1 of the pattern shown in FIG.
The leave pattern characteristics PΔ-1-2 and R2 shown in FIG.
are different. Especially in terms of development characteristics.
is a certain development level L - C1 in Figure 3 width of R1
The width D2 of R2 in Figure 34 is smaller than D1.
I know it's there. Furthermore, Figure 35 shows the exposure position and exposure energy.
It is a characteristic diagram showing the relationship between P and P during laser irradiation.
(ON) 1 energy is, for example, 6 mw, A7 portion
For example, the energy of P(SH) at the time of creation is 4 mw.
Ru. The following is a summary of the two T-toe methods. . During beam scanning, recorded information (character information) is recorded on the recording photoreceptor.
etc.) to be recorded in response to differences in beam intensity.
, the serial binary input data is input to the first and second
Beam with degree (the above P(ON) and P(OFF))
The input data is recorded based on the specified information.
when the beam has the first or second intensity;
A third strength located between the first or second strength
i;rl! record
The determination of this particular relationship is, for example, based on beam travel.
When the scanning is performed sequentially for each horizontal line, (a
) Significant record of J5G pull 21U data on horizontal line
Involuntary recording from data (data that forms characters)
data (to data that does not contribute to character formation)
, and the part of the unintentionally recorded data immediately after that change is
(b) horizontal line scanning with an intensity of 3
The data on the current line (which corresponds to the position)
Compare the data of the previous line in the superposition direction, and use the above (
Similar to a), meaningful recorded data to unintentional recorded data
The involuntary recording part immediately after the change is recorded as the third intensity.
It is possible to scan with a beam of C. In addition, when making the shadow "f", the type of recorded information (e.g.
For example, text information and image information) may be used.
However, when dealing with text information, this method is used.
That sounds like a question. In this case, step 1 of Figure 5 (A)
] - As shown in Jiseito, a microprocessor -
It is determined whether or not there is a flag (shadow), and it is character information.
This moves to the flow of 1-Shadow ION, and the character information J
, 1 shadow if -b outside 4 (e.g. image information)
"of! FJJ fI not allowed J: sea urchin (automatically
I try to get excited. The command in this case is shown in Figure 27.
As shown in 'I'rSONF17D0N10FFI
. Or 1 shadow 0N10 F F on the panel part
The operator can select the
You may also be able to use a shadow method like the one above.
If the recorded information is character information, 1-shadow is used.
” can be done (4) to improve print quality.
Wear. Especially when recording high-density beams, the conventional binary video in J6
The drawback of the recording type is the strength of the recording system.
Prevents line sagging due to low printing speed
As a result, the printing density of one dot line increases.
, 40 x 4. Kanji L with high dots such as O-dot composition
The printing quality can also be improved for in-1-
. In addition, on the photoreceptor due to one-plane deflection 1 of the polygon mirror,
1 of the vertical deflection of the beam of
This makes polygon mirror processing easier and cheaper.
There is also the advantage of being In addition to character information, the above system also applies to simple graphic information.
It is also possible to cover the cover. Next, regarding charging correction, see Figures 37 to 41 and 5.
C will be explained with reference to the flowchart shown in FIG. FIG. 37 shows an example of a configuration in the charging power supply circuit 160.
We accept this (Mataka 1 [power ON/OFF
Is J in F signal 835 an operation control? ) voltage control
circuit /1/'I5 and this voltage control circuit /l/I5
Therefore, frequency output is applied to the primary side, and high voltage is applied from the secondary side.
Does it generate output? Pressure l-Hunsu 4/16 and. The output of back pressure 1 to lance 446 is rectified and the rectified output is
High-voltage rectifier circuit that applies electrical charge t=30/l
447, the current flowing through the charging charger 304 is manually controlled.
f[(current,/voltage conversion circuit 45
0 and the output of this current/'electric It transformer 1 circuit 4()0.
As one input, control I M tH<juice (!) - Koushikou
The operational amplifier 4 which outputs the power from the circuit circuit 47'I8 to the other hand.
It is made up of one. The control group t11. electric
The loaf generation circuit 448 is controlled by the analog control signal S36.
It now outputs the control reference voltage H that is controlled.
. According to this J:una configuration, the control group tlI electric power is activated.
The output of the voltage control circuit 445 is applied to the output from the raw 448.
The frequency is determined and based on this - (no high voltage output occurs)
At the same time, the current for charging f = Yard X7 at this time is
Current 7/applied to the voltage conversion circuit 450 l), this output voltage and
Compare the reference voltage with the operational amplifier 449 and check if the two match.
The control operation is performed so that the output voltage is stable.
Standardization can be achieved. Here, we will explain in detail the contents of Analog Control No. 48, 836.
explain. As shown in FIG. 38, the photoreceptor 301 changes due to temperature changes.
It has the characteristic that the surface potential changes significantly. In the figure, the horizontal axis represents temperature, and the vertical axis represents surface potential change △vO
This shows the type of drum: 451°452.45
Each type has different characteristics. Also, the 39th
The figure shows each drum 451,452.45 at a temperature of 25℃.
3 shows the relationship between the drum inflow current ■D and the surface potential VO
The characteristic diagram shows t b and is a proportional straight line. follow
In order to keep the surface potential constant, the drum inflow current]D
It would be a good idea to change it. For example, in Figure 39
Characteristics/For I51 drums, the surface potential is 800V.
In order to maintain the inflow current corresponding to the amount of surface potential change △Vo
For the drum with characteristic 453, subtract the amount of change ΔID.
The inflow current change m△1 corresponds to the surface potential △VO-O.
If the increase is by [)-, it will be obvious that the photoreceptor is
Various characteristic data are stored in the RAM 107). child
Here, the inflow current ID and output current are as shown in Fig. 40.
Since there is a correspondence relationship, the charged circle height 1 "inside the power supply circuit 160"
The control reference voltage of the light 4-j nona 1'' signal to the circuit 14 (
Input terminal) Vary S36 to 2V, /l\/, 6V, etc.
Adjusting the above inflow current ID by doing C
Wear. Figure 111 shows that [1g human-powered thunder current (Figure 15)]
What is the relationship between the output voltage and temperature of D/A-Conharc 165?
For example, if the temperature of the drum 301 is
Detected by degree sensor 342 (thermistor in Figure 14),
The analog control signal 7w S36 is activated in response to temperature changes.
I wish I could apply it. The band ¥R correction is performed based on the above contents.
Wow, but let's take a look at that action! Explain based on Figure 56. The reamister 342 shown in Figure 14 detects the temperature of the drum.
When it comes to knowing, Δ/r)] Nharta 271 is a digital signal.
When the data conversion is completed, the temperature data DTn and
Temperature data of the sharpening drum at a temperature of 25℃ l) T' 2
Subtract it and read the value D△. Next, the temperature is 25℃
Read the time base piece data DV25, DV25-1-
Perform the calculation of D△V and convert the calculation result D V n to D/
Am parta 16! 5 to t[1 force. and the 45th
The drum characteristics of the 7-dress R6000J shown in Figure (B)
The drum characteristic number is identified by referring to the RAM 107.
Separate and further read feedback error data 1〕△■
. Next, read the reference data DV25 at a temperature of 25°C, and
Perform the calculation of V25@D△V, and the calculation result IJ V
n to 1)/=] output to the server 165. and obi
Apply Vn to the analog input of the high-voltage power supply 160 (
836) as well as the control input signal S of the charging high voltage power supply 160.
35 is turned ON to perform correction. every time the temperature changes
The above correction is repeated to keep the surface potential of the drum constant.
That's what I do. In addition, various photoreceptors stored in the nonvolatile RAM 107
(drum) characteristics are specified externally by the operator.
I'm trying to make it possible. In other words, in the ◎ flow diagram in Figure 60
As shown, it is determined whether or not to replace the drum.
If replacing the drum, set the drum characteristic number.
After turning on the test key, the non-volatile bamboo RAM107
Drum special t'4NO intrusion into the Tommu characteristic NO area
A review will be carried out. Therefore - (, then always the currently used
The characteristics of the drum are selected and corrections are made based on this.
It will be done. When the above charge correction is performed, changes in the external environment and
Photosensitive even if the temperature of the photoconductor changes due to the wet atmosphere in the gas.
Since the charged potential of the body remains constant, it is based on temperature changes.
Decrease in charging potential, decrease in print density or increase in charging potential
It is possible to prevent problems such as blurring and blurring, and the image is always clear.
It is possible to provide accurate printing. In addition, in this example, the temperature of the photoconductor is
input (external setting) information that categorizes the
Since the correction is made accordingly, it is extremely
F-degree correction of charging characteristics can be performed with high accuracy. subordinate
Therefore, variations in the temperature par characteristics of the photoreceptor itself can be alleviated.
This means that the range of photoreceptor specifications can be expanded.
There is also the advantage of being able to . Next, flowcharts A and 5 in Figs. 47 to 56 are shown.
Also refer to the time charts in Figures 7 to 59.
Explain the operation of trading bodies. Now, refer to the operation explanation below.
Define each timer (counter) used in
do. Timer Δ does not output VSYNC from the start of printing.
In the so-called standby operation up until now, timer B is set to V.
Controls everything from SYNC production to delivery.
, and timers 〇 and D are registered from the start of data transfer.
This is for controlling motor stop, toner replenishment, etc., and the timer F
is for data reception completion and stop sequence control. After the power is turned on, the door switch 129 is turned off. Paper ejection switch 336 is OF' F, manual stop
Switch 328 is OFF, Pass Sen v-123 is OFF
, the temperature fucose 130 is not interrupted, and the paper output
Ray 384 is full (Check whether FUI-1>'U is present or not)
and then test print mode or maintenance mode.
mode or exchange mode. Each one is fine
If so, the MC relay 131 turns on, and the fuser heater
-Lamp 333 is ON, skittle motor 312 is ON.
1. Timer A (rlMA) starts.
When ATIMA clicks 1-J for a predetermined time t1, the drum
motor. Mechanical parts such as the developer motor turn on, and then the T
When IM8 counts the predetermined interval t2, the laser 344
turns on. - [Time 125 is Callan 1 due to IM8
It is determined whether or not the
(If Y>, then 1~IMA=t26 is 51 o'clock.
Transfer jersey (・, laser, developer motor, developer
The leave bias becomes O[", and further 1-I
Drum motor, heat low when time of M△-127 has passed.
The motor, static elimination lamp, and pre-transfer static elimination lamp are OFF.
Become. Next, the timing of IM△-t29 is scanned.
Motor ready, H8YNC resolution is checked and installed.
If S (Y), rlMA will stop.
Figure 47). Next, a determination is made as to whether it is a “treyful in status 4”,
Determination of “dob-back exchange”, ]-1 to no ner” or not
If the tray is full, then the output tray is checked.
After removing the paper in
, set the output tray counter to
If it is "reset the battery", it will be reset once the condition has returned to its original state.
Even if toner is to be replenished, it will be removed once it has been restored.
The test will be carried out. After passing the above flow, the next stage is
It is determined whether or not the mode is "power saving" in "Task 3", and the
- If (N), then [“No Paper” in Stakes 4J
A determination is made, and if yes (Y), “Cassette paper
It is determined whether the detection is 0'NJ or not, and if no (N>
``Set the paper out J flag to 0' and indicate ``fuser ready''.
For example, the ``status waiting'' flag is set to ``O''. next
IPRI) YON, IPREQON, and “Power Se
It is determined whether the paper is in progress or not, and whether there are 4 copies of paper in progress.
If there are no problems, ITMA will start. TIMA=
At t01, the registration motor 149 reverses, and TIMA=t
At 62, the registration motor stops. At this stage, the tip of the paper
The end is held between the paper feeders [1-ra]. Next, it is determined whether "one manual feed" is performed, and if the answer is no (N),
barlPR, N1- ON, I is determined whether or not, and the initial
I varnish (Y) is r IP R [to] OE [J do
Become. Next, check whether timer E (1-rM[:) is operating or not.
is determined and if it is in operation, r"-r IME=1.3
0 is determined, and if yes (Y), TIME stop
Next transcription 1? -ja305. Peel #l (peel) cha
306. Developer + E-tater 141. Fuser motor 1
Each of the 43 performs ONI. , I”T IME=t
30J is 'l-r M F3 is stop.
The process then shifts to flow 0 (see above in Figure 48). Next, TIMA starts and plaid solenoid 158
turns ON, I'T' 1. Developed at MA=t 1.1
device motor 141. City lamp 302. Pre-transfer static elimination run
303. Drum motor 1/I7c is turned ON.
Ru. rTIMA = t21 transfer + - transfer 3
Q5. When fuser motor 1/13 turns ON, TI
MA-t3”, the power charger 306 is turned on,
Then rTIMΔ==t, 1-IMA after 1-1
11. Next, start again from “0”.
If the cassette is in the upper or lower cassette, it is determined whether the cassette is in the upper or lower cassette.
The paper motor 151 is rotated normally to feed the lower paper, and the lower paper is fed.
If so, wait until rlIMA=t5J and then turn paper feed motor 15.
1 is reversed to perform lower paper feeding, primary rTIMA=t
5,1, turn on the laser 344 and rTIMΔ
- After tl, the charger 304 is turned on. rTIMA=t Check whether it is laser ready with 7J.
If yes (Y), rV in “Status 1”
The "sYNc request list" flag is set to 1'. Then Thailand
Start Mar B (TIMB) and move to the C@ flow.
(See Figure 49). Next, stop the paper feed motor 151 at rTIMA==31J.
, rVsYNc command received” and returns YES (Y
), determine whether rTIMB<t 32J, and
If it is S (Y), stop TIMB and
Top” “Page End Counter” Call 1-Start,
Immediately execute the image writing process. Timer〇、D (T I
MG, D) start ``, 1 with ``Ding IM△-134''
- I M△stop, paper feed motor 151 stop
. Next, use rr1Mc/D=t 35j to create a lens (~morph
149 normal rotation, one to 1 Tal counter 3540 N, r
r1Mc/I)-t36" to determine the high or low level of the
Ru. If the concentration is low, turn the toner supply motor 151) to O.
Lead to N. 1st page end interrupt], and if yes (Y)
If so, image writing is complete I I) E N I) Output pulse
Give strength. Then set each counter to -11, ]i~Remi
``Leray Fludra 11 Replacement'', ``Developer Replacement 1° [Hea 1
- [1-If the exchange is 1, each status will be displayed. still,
The determination result of the rVsYNc command reception is
If no (N), charge the charger with “IT IMB=t46”.
laser with 304 OFF, r-IMB=t47j
344. Hatari charger 304 OFF, rTIMB・
・Nuki/I7J with laser”-34,/1., Hataricha
t-306 and developer motor 141 are each set to 0FF.
=, rT IMB, =l /48.1 transfer charger
305. Turn off each fuser motor 143, rT'
JM8==t '19J, drum motor 147. Static elimination la
302. Turn off each pre-transfer snow removal lamp 303.
[:, rT[MB=t 50'' and plaid solenoid 1
Let 58 be 0FI-. Also, in the flow of rTIMB<t 32J, -(N)
If so, then it is determined that rTIMB<t33j and no (N
), then TIMB stop, TIMA start.
. After that, turn on the plaid solenoid 158 and turn on the rTI.
Step blade developer motor 141 with MA=tIJ. drum mo
Ta147. Static elimination lamp 302. Pre-transfer static elimination lamp 303
Turn on each of them. and [DingIMA=t2J's
Togi transfer charge t305, fuser motor 143
When ON, rTIMA=t 3J, disconnection
Turn on the camera 306. Next, rT[MA-t 4j or not
After making this determination, timer A is temporarily stopped and restarted.
and start it. The developer motor 141. transcription
Charger 305. Hakuli Charger 306. Fuser mode
143 are turned on. rTIMA=t5
Laser 344ON at j, FT IM=t electrification at 6J
Charger 304 ON, l-TIMA・-(71
Determine whether the user is ready or not.
Figure 50). Next, [1 to 1] is the full detection switch 126J ON or not?
If it is ON, it will be displayed, and if it is ON, it will be displayed.
- No detection switch 125JON is determined and displayed.
will be held. Next, a determination is made as to whether it is 1 manual feed 1 or not.
If you manually feed the
ST'PF (
Set the block flag) to 1'. Next, timer E(T
IME). S1 head flag is '1''
If so, set 5TPF to O' and print ready IPRD.
Turn Y off. S T P F == not 1
In this case, it is determined whether or not it is "manual feed 1", and "manual feed 1" is detected.
” then TIME STOP, MAYU-1 AL STOP
Itsuji 3280 F F, handiGshi'O', T
I MB stop, cutlet paper out detection switch is ON.
A determination is made as to whether or not the
REQ turns ON and moves to F [1-] in Figure 48 above.
Go (see Figure 51). Next, we will explain the contents of the timer interrupt in each flow.
This will be explained with reference to FIGS. 52 and 53. This means that each timer A, B, C, D, and F is operating.
It is determined whether the
Perform a top-up. All input information in port input reading part
Read. And at rTIMc/D=t 38J,
Stop the timer and check whether rl1ME=t39J
After that, the operation of timer E (T IME) is determined.
Continue to operate the toner replenishment motor 159J, r every time.
Stop the registration motor 149-1. Then rT
After IME=t4J, determine whether rTIMA is operating and is 1.
This determines whether the next sheet of paper will be printed.
(to judge). If TIMA is operating, TI
Make the ME s(stub). Then "TIME=t41J
The charging charge is 30/l OFF. rTIME=t 42J and laser 344. Hakrija
306. Turn off the developer motor 141 and
do. rTIME=t 43J to transfer V-ji r305
．． The fuser motor 143 is set to OF' F, rT I, respectively.
MF=t 44J, Dra l)-Theta 147, static elimination run
302. Turn off each pre-transfer static elimination lamp 303.
(hereinafter shown in Figure 52). rTIME=t 45J and plate solenoid 158O
FF, TIMF stop, [Is the fuser temperature normal?
determination, [Fuser temperature Fucose stage], [Scan mode]
"Is the door switch 129 OFF?"
A determination is made, and various processing is performed depending on the status.
1. Next, the contents of the command interrupt in each flow mentioned above.
1. Command interrupt explained with reference to Figure 54
When processing starts, it is determined whether there is 1 parity - error - 1.
If there is an error, [Status[)ATA81
J's flag becomes 1' [failure? Last year J cloak ■ Ra
"bawl. [Parity, [If you get 41 with no-1,
It is determined whether data request, 1 is in the range of S R1-6.
, output corresponding to one of them when within the range
1, [Status Request]
If not applicable, [Top/Bottom Margin - 1 or not]
If it is determined, [top/bottom margin 1 is
specified [status cell l-j becomes 1', r l
) A TA21-11] is specified. [
Top/Bottom Margin]
”, and if yes (Y), then manually feed the paper.
display, the paper size is displayed, and the paper size register is set.
will be played. And status with manual status set
1, the rDA and TA41J flags become 1', and then
Shift to the flow where the paper out flag becomes O゛ in status 4.
cover [Specify 1 cassette when not specifying manual feed]
If it is "cullet specified", the paper size is determined.
The register is set and the upper cassette size and specified size are set.
It is determined whether the
Set the paper feed mode to upper row, and the upper caret is selected.
The upper selection display, that is, the LCD display 35, indicates that
9 segment 364 is lit, and its paper size
is represented by segment 362. If they match
If not, the lower cassette size and the specified size are the same.
It is determined whether or not they match, and the result of this judgment is
If so, set the paper feed mode to the lower row.
, the lower selection indicates that the lower selection is selected.
display, i.e., L CI)
Turn on the 363, slide it out, and segment the paper → noise.
C is displayed by 362. Upper stage Riki Sera 1~→ Naiz and bottom
Any one of Danriki Cera 1 to Reisu matches the specified size
Then, set the C paper feed mode to ``2nd or lower'' accordingly.
1~, the indication of this and the indication of paper size are completed.
When the manual feed status relet is pressed, the status
1, DAiΔ417 lag '0'. Soshi-c1 designation
Case 1 - It is determined whether paper out detection is ON or not.
If it is ON, by flashing Semegunt 380.
Displays paper out, status 4, paper out flag '1'
and then returns. If it is not ON, leave it as is.
I'll return. Also, the lower cassette size and specified 1 noise
It is determined whether the images match or not.
is completed, status 4, paper out flag '0
', the manual status set is made, and then
and set the status to 1 and the DATA41 flag to 1'.
. Next, the manual feed display, paper size display, and return
Turn on. [If the caret specification is not 1, select [Selector]
It is determined whether the lamp is lit or not, and the online
pump (specified from an external device, e.g. post side)
It is judged whether it is lit or not, and if it is yes (Y), select
The lamp will be lit, and if the select lamp is not lit, the selection lamp will be lit.
It is determined whether the rect lamp is off or not, and if yes, the se
The rect lamp will go out, and if the answer is no (N), the next floor will be displayed.
-Move to Next, as shown in FIGS. 55(A) to (C),
-1~ will be explained. In addition to the above-mentioned [shadow yj formula j, 1
"Power Save" is on and "Power Saving" is on.
If so, scan motor 312 is OFF. Controls the fuser to a power save temperature and
"Power save flag 1 of TAS3" and set the power save solution.
I like it before removing it (Tanabata 312 ON, fuser normal temperature
Control [1-le, [Flash during status 3 power save]
0-1, and if it is [Image data transfer start], the 55th
Shift to the flow in Figures ([3), (C)+7]. The paper size register is read and the specified paper size is 1.
~Tsubu margin table data (+)1) is read.
and determine whether the top/bottom margin specification is 5ml1 or not.
The top/bottom margin change table is set to No (N).
The bull data D2 is read. then top merge
Table data D 1-+ Margin change table data
The performance of data []2 is performed, and the top margin adjustment switch is
The contents of (442 in FIG. 14) are read. Then switch
Top margin adjustment table data corresponding to
3 readings are taken, Dl and (D 1-1- D 2 )
The margin adjustment table data D3 is added to and subtracted from the value of
Please upload the song 1) 4 at the top of the page at page 278.
to tsut. And bottom margin two-pull data D of specified paper size
5 is read and the top/bottom gauge designation is 5mm.
It is determined if no, and if no (N), top/bottom 1~
Margin change table data D2 is read,
bottom! -Jin j-Pull data D5 and margin change data
Subtraction with Pull F-ta[]2 is performed, and the top margin tone is
The contents of the adjustment switch 442 are read and the contents corresponding to the switch are read.
The top margin adjustment table data D3 is read.
. Next, adjust the margin to the value of D5 or (D5-D2).
Addition and subtraction are performed on the table data D3, and the calculation result D4 is paged.
The counter 279 is set to . Next, select the specified paper size.
The write margin table data D7 is read and the
Set/manual feed is determined. Whether it's cassette selection
If it is not the upper row (reference), it is determined whether
The 14th cassette upper/lower adjustment switch
Read the contents of Figure 44) and select the cassette corresponding to the switch.
Read soil/lower adjustment table data D8. Said D7
Add or subtract the above D8 to the value, and the calculation result D9 or the above D
7 to the write margin counter 277. or,
If manual feed is specified and the IC is inserted, insert the cullet 7 and adjust the
Read the contents of the switch (440 in Figure 14) and write it to the switch.
Compatible cassette/manual feed adjustment table data D10
Read and then adjust the data DIO to the value of D7.
Addition and subtraction are performed, and the ejection result D11 is calculated as
Set it on the counter 277. Next, left margin table data 01 for the specified paper size
2 is read, cassette/manual feed is determined,
If it goes to Kasen 1, it is determined whether it is in the upper stage (standard) or not.
, if it is not the upper stage, it is judged as a means, and the cassette upper/lower stage tone
The contents of the adjustment switch 440 are read and the contents corresponding to the switch are read.
The cassette upper/lower adjustment table data D8 is read.
Ru. Add or subtract the data D8 to the value of D12, and
Calculation result 113 or said data DI2 with left margin
Set it on the counter 276. Also, if you use manual feed, you can
Reads the contents of the set/manual feed adjustment switch 441 and
Cassette/manual feed adjustment table data compatible with switch
D10 is read and the data D10 and the data DI2 are
Perform addition/subtraction with the value of
The margin counter 276 is set. For details of printing on cassette paper during the flow of Moejo, see the tab in Figure 57.
Imji [-1 ~ shows t, J, and sea urchin "C". When the print start signal IPRNTφ (S65) is output, the print starts.
The start correction enable signal IPREQφ (S62) rises. So
The post-developing device motor 141 etc. are turned on, and from time 14 to t
The paper feed motor 151 operates between 8 and 8 to feed the paper in the C cassette.
transport. At this time, the laser diode 34/I is
Il'j time tFi turns on and a) One, from time t7
Start writing data (durable period from time 17 to 111)
period is the data writing period). At time t9, the registration motor 149 rotates and the flow to the photoreceptor is
The recorded data is transferred to paper. Writing data is
It is carried out until time t11 when IPREQφ (862) falls.
, registration motor 1 until time t12 after time 1111 shuttle passes.
49 Ll continues to rotate and stops. laser diode
The door 344 is turned off at the instant t14. Figures 58 and 59 are for explaining the operation of manual paper printing.
This is a time chart. The following explanation uses the above cassette.
In the case of paper printing and 5! The part ζ will be explained. In Figure 158 and Figure E59, paper feed motor 151 is not used.
Rotate the registration motor 149 in the opposite direction without
It is used for transporting paper M, and the register is driven by forward rotation.
It is designed to drive a stroller. Also, both
Print start command I P after receiving "manual feed command"
RfE Qφ (S62) is set to -1-1
, Figure J8 shows [Hand 1 Sea 1 Mantle 1]
Indicates when paper is set in the paper feed guide, and the paper label is
The manifold E1 Alfeed switch 326 is turned on by i-.
Then, after the return time t01, the registration motor 149 is activated.
It rotates slightly in the opposite direction and stops with the leading edge of the paper added.
"Manual feed command J is issued T I P RE Qφ (36
2) The lens L motor rotates in the opposite direction again at the time when
The paper is conveyed to the transfer position and then stopped.
Ru. Therefore, if [f insert command 1 is issued and TJ Moe is
It is possible to print on paper from the set. The one in Figure 59 is first [Handmark': 1 After Manto 1 comes out]
When the paper is inserted into the manual guide, the manual
This is the platform where the control switch 326 was turned on.
In this case, the registration motor 149 is connected after the predetermined time t01 has elapsed.
Continuously rotate in reverse to transport at transfer position V3:L.
There is C. 1 In addition, in any case, Mayu: l Arstops
A predetermined period after the switch 328 is turned off (time t 20)
The registration motor 149 stops at time t21 after the time has elapsed.
However, this allows the manual feed guide to be set.
If the printed paper is longer than the displayed size,
I'm yelling that ``Gym''doesn't occur. cassette paper
In this case, 1 noise is specified, so this kind of consideration is necessary.
unnecessary. Therefore, even if the cassette runs out of paper,
, one-size-fits-all information for printing
Printing can be done by preparing paper, and it can also be printed according to the standard.
It is also possible to use paper of a different size, making installation easier.
Utilization increases. Flow (2) is a transition from the flow shown in FIG. 47. The contents of (1) and (2) will be explained with reference to FIG. 60. When the test print 1 mode is selected, the process moves to ■.
1, and then select print mode NO via the test key.
Execution of the specified printer 1~ is performed.Maintenance
When the mode is selected, the flow moves to ■, and test 4-
No maintenance specified through [-]
When executed and exchange mode is selected, transition to flow O
"Replace the drum?", "Replace the developer?", "Replace the developer, 1,""Heat1".
~1"-Ra exchange is determined to be J, and each "Drum special f
IN Ot 1~1, “Developer Replacement No. Set”, “Hi”
[1-LaN. Non-volatile 〈t, RΔ
Predetermined data corresponding to M107 is processed. Figures 61 to 63 show the display numbers and their respective contents.
Correspondence example (This is a diagram showing the correspondence. (The following is a blank space.) [Effects of the invention] As described above, according to the present invention, the
If a paper storage compartment of the specified size is not installed.
Manual feed mode and manual feed mode.
The display section shows the size of the paper to be fed.
Paper is manually fed and recorded.
This eliminates the need to replace cassettes. stop
1 size of paper to be fed manually is displayed.
If you use the wrong size of paper,
J't becomes 41. (Margin below)

[Brief explanation of the drawing]

Figure 1 is a system block diagram showing the relationship with external devices such as mounting in the present invention.
Figure 3 is a schematic sectional view of the print control unit (printer), and Figure 2 is a schematic cross-sectional view of the printer. FIG. 5 is a schematic diagram showing an example of the paper discharging section in FIG. 2; FIG. 6 is a plan view showing the operation panel of the apparatus of the present invention; FIG. Figure 6 shows an enlarged plan view of the display unit, and Figure 8 shows an example of the data control unit shown in Figure 1.
The block diagrams, Figures 9, 10, and 12 are diagrams of the format of data handled by the data control unit, respectively.
Figure 1 is a diagram showing the correspondence between the area of the recording unit in the data control unit and paper, and Figure 13 is a block diagram of the print control unit in Figure 1.
Fig. 14 is a detailed circuit diagram of each detector in Fig. 13, Fig. 15 is a block diagram showing details of the drive circuit and output element f in Fig. 13, and Fig. 16 is a detailed circuit diagram of each detector shown in Fig. 13. Figure 17 is a detailed circuit diagram showing the laser modulation circuit and semiconductor laser in Figure 13, and Figures 18 and 19 are diagrams showing the semiconductor laser and optical output. Characteristic diagram showing the relationship between
Figure 0 is a time chart for explaining the operation of the circuit in Figure 17, Figure 21 is a detailed circuit diagram showing the beam detection circuit and beam detector in Figure 13, and Figures 22 and 24 are the diagrams in Figure 21. Waveform diagram for explaining circuit operation, Figure 23 (A
), (B) are front and side views showing an example of the structure of the beam detector, FIG. 25 is a detailed circuit diagram of the print data writing control circuit in FIG. 13, and FIG. 26 is a detailed circuit diagram of the print data writing control circuit in FIG. FIG. 27 is a circuit diagram of the interface circuit in the device of the present invention, and FIG.
FIG. 8 is an explanatory diagram showing the contents of the status used in the apparatus of the present invention, FIG. 31 and 32 are time charts for explaining the operation of the circuit in FIG. 25, and FIGS. 33 and 34 are for the paper The printed pattern diagrams, FIGS. 35 and 36, are characteristics showing the relationship between exposure position, exposure energy, surface potential, and exposure energy and exposure position to explain the exposure control operation in the circuit of FIG. 25. Figure, 3rd
7 is a detailed block diagram of the high-voltage power source for charging shown in FIG. 15, FIGS. 38 to 41 are characteristic diagrams for explaining the operation of the circuit shown in FIG. 37, and FIG. Laser Scanner Units 1 - Which shows the relationship with the recording photoreceptor? llll! FIG. 43 is an explanatory diagram showing the relationship between the recording photoreceptor and paper; FIG. 44 is a modification of the paper ejection tray L/I shown in FIG. 5; FIG. 45 (A), ( B) and FIG. 46 are detailed diagrams of the data recorded in each recording device shown in FIG. 13, and FIGS.
A), (13), and (C) Figures 56 and 60 are flowcharts for explaining the overall operation of the device of the present invention;
7 to 59 are time charts 1 to 1 for explaining the operation of the apparatus of the present invention, and FIGS. 61 to 63 are relationship diagrams showing display numbers and their contents in the apparatus of the present invention. 1... External device, 20... Storage means, 101...
Control means, 301... Recording medium, 311... Information recording means, 317.321... Recording medium storage section, 318.322
...Conveying means, 327...Recording medium manual supply means, 359...Display means, Agent Patent attorney Masayoshi Misawa Fig. 19 l5 (OFF) Yo, Yayu Fig. 43 463

Claims (1)

[Claims] (1) A device that records information from an external device onto a recording medium by beam scanning, which includes a storage means for storing medium size information specified by the external device, a plurality of recording medium storage units, and each recording medium. a conveyance means for guiding the medium from the medium storage section to a recording position; a means for detecting the size of each of the medium storage sections; and specified medium size information from an external device stored in the storage means and from the medium size detection means. control means for instructing the display unit to manually supply the recording medium and displaying the medium size specified by the external device if the comparison result is not a match signal; A recording device comprising: