JPS6073637A - Recorder - Google Patents

Abstract

PURPOSE:To display an error in case of a wrong form size by feeding a form manually, specifying a size and performing printing operation, and obtaining passing information on the form by two sensors provided on the path of the from and deciding the size of the form. CONSTITUTION:The form is inserted manually into the entrance A of a printer frame 200, and a print side is specified on a console panel which is not shown in a figure and then a start button is pressed. An optical system unit 201 and a process kit 210 operate to print the form with a toner, and the form is fixed and discharged from the exit B. The sensors S1 and S2 near the entrance A and exit B detect the form passing. When the time difference in detection coincides with none of necessary passing times for respective sizes of forms which are stored in a controller previously, an error is displayed on the console panel and a buzzer sounds. Consequently, an error in manual form insertion is corrected securely and a warning of the jamming of a form is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a recording device having a manual paper feeding section, and particularly to a page printer type device.

[Prior art]

In a laser beam printer, a cut sheet of paper is usually stored in a cassette, and various controls are performed based on a size signal of the cassette. In the case of fan-fault paper, the width, folding length, etc. of the paper are notified to the printer in advance, or the size is detected and paper transport control is performed according to the set paper. In either case, information regarding the paper size is notified to the printer side, and unless the paper size matches the appropriate paper size to be printed, the printing operation is not performed due to a paper size difference (error).

By the way, there are restrictions on the quality of paper that can be stored in cassettes, such as thickness and smoothness, and thick paper or paper with wrinkles may cause feeding errors, and it is especially difficult to separate the paper feeds, resulting in double feeding, skewed feeding, or jams. In many cases, the ears frequently broke and could not be used.

In order to solve this problem, laser beam printers equipped with a manual paper feeding mechanism, which is used in copying machines, etc., appeared, and by manually feeding paper one by one to the printer,
There are no problems such as double feeding, skew feeding, jamming, etc. that tend to occur when paper is separated, and it is possible to print on a wide variety of paper types and sizes.

Although such a laser beam printer equipped with a hand-feeding mechanism has fewer restrictions on paper and is more convenient to use, other problems have arisen. That is, in manual paper feeding, since the paper size is undefined, for example, if B5 paper is set for A4 print information, image loss will occur in the printed output. In the case of a copy machine, the original is nearby, and even if an image is missing, it can be determined by comparing the copy with the original.
If you copy again using the larger size paper, you will get a proper copy with no missing images. However, in the case of a laser beam printer, the problem is that the print information is not known, and even if the paper size is too small and an image is missing, the operator who manually feeds the paper will not notice it. .

〔the purpose〕

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a recording apparatus having a manual paper feeding section that improves the reliability of print output.

Additionally, the present invention utilizes a sensing sensor inside the printer to
Detects the size of the manually fed paper sheet and compares it with the size required in advance in the print information,
It is an object of the present invention to provide a recording device that displays a size difference (error) when the two do not match.

A further object of the present invention is to provide a recording device capable of re-recording the same information once a size error occurs.

〔Example〕

The present invention will be explained below based on all the drawings.

FIG. 1 is a block diagram showing the basic configuration of the present invention.

The size of the paper conveyed by the paper feed means 103 provided at the manual feed port is determined by the paper size detection means 105 based on the signal from the full paper detection means 102, and based on this size data,
By comparing the size data sent from the information output means 104, the paper size display means 107 and the information output means 104 are controlled.
06.

FIG. 2 shows a schematic configuration of an embodiment of a laser beam printer to which the present invention is applied, in which a scanning optical system unit 201 including a scanner motor, a polygon mirror, a mirror, etc. is disposed in the upper part of the main body 200. This unit is attached to a board 202 within the main body. Substrate 202
A rotating cylindrical photoreceptor 203 is arranged below the photoreceptor 203, and a charger 204, a developer 205, a transfer charger 206, a cleaning device 207, etc. are arranged around the photoreceptor. Casing 208 together with body 203
The process kit 210 is stored inside (2). Image exposure according to information from the optical system unit 201 is applied to the surface of the photoconductor uniformly charged by the charger 204 through the opening 201a of this unit. Opening 2 of substrate 202
An electrostatic latent image is formed through the opening 208ak of the casing 208, and this latent image is then visualized by the developing device 205, and the transfer material is fed to the manual feed entrance=4-A. Then, the image is transferred at the transfer site where the transfer charger 206 is present. The transfer material, while retaining the toner image, advances to the left (arrow) in the figure and reaches the fixing device 20.
It is fixed and fixed at position 9 and is ejected from the main body. The toner that did not contribute to the transfer at the transfer site is removed from the photoreceptor 203 by the cleaning device 207, and then the image forming process similar to that described above is repeated.

Here, when a manual print request is output from the host side, lamps 1 to 1 on the display panel 31 of the display section on the printer are displayed as shown in the front view in FIG.
Of L4, the display corresponding to the size required for printing is turned on. For example, if print information needs to be output on A4 size, lamp L2e is lit, '1 and B5
If the size is correct, the lamp Lse lights up. Lights up in L4' for special size paper used at the user's site. In this manner, the operator inserts paper from the manual feed entrance A in FIG. 2 according to the paper size information specified on the printer. Whether paper is inserted or not is determined by a population sensor S comprising a light-emitting lamp 221 and a light-receiving element 222 at the entrance;
The printer starts operating by detecting the presence of paper.

At this time, the leading edge of the paper is partially caught in the registration roller 225 and stopped, and is sent out at a predetermined timing when the printer starts operating. The page information from the host is printed, passes through the fixing device 209, and is discharged onto the paper discharge tray B via the paper discharge roller 226. A light-emitting lamp 223 and a light-receiving element 2 are provided at the paper ejection roller 226 section.
There is a paper ejection sensor S2 consisting of
By comparing the output signal of and the specified size signal,
Check whether paper of the appropriate size has been sent.

FIG. 4 shows a timing chart for checking the entire paper conveyance length. The printer is turned on after τ time from sensor S, and the time when sensor S is turned ON from the time of printing start is j+, and the time until it is turned OFF again is t"tt. Delay jam is checked at the above time 1. Then, at the next time t2, the paper length in the conveying direction and the remaining jam are checked.

Since the conveyance speed V is known, the length l of the paper in the conveyance direction is
It is determined by z=Vxt. By comparing this value with the specified paper length Lp, it is possible to determine whether the manually fed paper is as specified, or whether it is larger/smaller than the specified size.

FIG. 5 shows a control block diagram of this embodiment.

In the figure, block 600 is a processing block on the printer side, and block 650 is a processing block on the host side. Block 600 includes a CP that is the center of control.
U601 includes ROM5Q2, AM603, and PIA (peripheral interface) that controls input signals.
adapters) 604 and 605 are connected. PIA1
In 3Q5, various human power/output l1060 of printer main body
6 is connected and also as an input/output regarding the present invention,
Person sensor S, signal 6 (17 and paper discharge sensor S).

7-- The signal 609 is binarized and input via comparators 608 and 610, respectively, while the size display signal is input via the drive circuit 612 to the lamps L, - of the display 611 on the display panel 31. L.

is output to.

On the other hand, the host side has the same configuration, and the CPU 551 has RO
M652, RAM553, PIA554 are connected,
The input/output of page information is controlled between the PIA 654 and the page memory 655. Communication between the host and the printer is performed via the PIA654 and PIA604, and manual print commands (PEtINT), size information (8IZE), and video signals (VIDEO) are sent from the PIA654 to the PIA604. On the other hand, the printer ready signal (f[ADY), print completion signal (P, END), and reprint request signal (H, EP
几IN'l') will be sent.

FIG. 6 shows a flowchart of the control performed by the control block of FIG. 5 during manual printing. In step 501, first, it is checked whether there is a manual print request. If there is no manual print request, the process branches to "Return". If there is a manual print request, in step 502, a lamp corresponding to the paper size on the display panel 31 is lit to notify the operator of the required paper size. In step 503, the operator sets paper in the printer and waits until the output of the input cell S1 is turned ON.

If it is turned ON, in step 504, the jam detection timers Tt and Tz1 are cleared, and in step 505, printing is started and various sequence operations necessary for printing begin. At step 506, timer T is started. step 50
In step 7, the paper ejection stage is set according to the timing chart in Figure 3.
It is checked whether the output of sensor S2 is ON or not, and if it is OFF, the value of timer T is compared with the delay jam constant in step 508, and if the output of sensor S2 remains OFF even after the specified time has elapsed. , step 5 assumes that a delay jam has occurred.
Branches to 19. In step 508, the timer T (in the case of a jam constant) returns to step 507 and repeats checking the output of the sensor S2.

When the output of sensor S2 turns ON, timer T2'! ? It starts up, and in step 510, the output of the paper ejection section S2 is turned OFF.
If it is ON, in step 511 the timer T
2 and the retention jam constant, and if the timer S2 remains ON even after a predetermined time has elapsed, it is determined that a retention jam has occurred and the process branches to step 519. In step 511, if timer T2<jam constant, the process returns to step 510 and repeats checking the output of sensor S2. At step 512, printing is stopped upon completion of paper ejection. In step 513, the time during which the output of sensor S2 is ON is read from Ttk timer ■2, and the print speed V
Multiply by the paper width length I! I put it on. This value is 7! wo step 5
14, the length Lp in the transport direction of the paper size for which the paper feed request was made.
If Lp≦l, it means that the manually fed paper is the same or larger than the requested size.In step 515, a lamp corresponding to the size is lit, and in step 516, the host side Notify the output completion and proceed to “Return”. On the other hand, if Lp>1, it means that the paper that was manually fed once was smaller than the requested size, and in order to alert the operator, a lamp corresponding to the size is blinked in step 517.

In step 518, an output request for the same page is issued to the host side. Then, the process returns to step 503 and waits for manual paper feeding. That is, if the size of the manually fed paper is smaller than the specified size, printing will continue until the correct size paper is fed.

In step 519, the printer is stopped due to jam detection, and in step 520, the process branches to jam processing.

With the above configuration, even if paper of a smaller size than the specified size is fed, the operator can be given all instructions regarding the wrong size (error), and the page information can be re-sent to the host side. By requesting this, you will be able to obtain correct output without missing images.

[Other Examples]

11- The embodiments described above may be configured as follows.

(1) Even if the size of manually fed paper is larger than the specified size, it will be displayed as a size error and a reprint request will be made.

(2) When a size error is detected, it is treated like a jam and printing is stopped.

(3) When a size error is detected, image formation is stopped and only paper conveyance is performed.

(4) When a size error is detected, the buzzer sounds,
Alternatively, it may also be used with audio output, etc.

(5) When a size error is detected, display a status code or output text.

Furthermore, the present invention is not limited to manual paper feeding, but can also be applied to cassette paper feeding that does not have a size signal.

That is, in a cassette that is usually called a universal cassette, size information cannot be transmitted from the cassette side simply by changing the position of the cutting board in the paper storage section. Therefore, the same problems that occur with manual paper feeding also occur with the universal cassette. In this case as well, if the requested print paper size and the paper size loaded in the cassette are different, it may be treated as a size error.

〔effect〕

As explained above, by detecting the size of manually fed paper using a sensor installed inside the printer, even if paper smaller than the specified size is fed, Since the error is displayed, the operator can be warned of this fact, and it is possible to prevent the printer from outputting images with missing images. moreover,
By issuing a reprint request after detecting a size error, it is now possible to obtain output at the appropriate size, making it possible to increase the reliability of output to the same level as paper feeding from a cassette.

Another advantage of the present invention is that a conventionally existing jam sensor can be used in common for size detection, and there is no cost increase factor.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the configuration of the present invention, FIG. 2 is a schematic configuration diagram of an embodiment of a laser beam printer to which the present invention is applied, and FIG. 3 is a front view of a display panel showing paper size. Figure 4 is a timing chart for checking the paper conveyance length, Figure 5 is a flowchart for manual printing, and Figure 6 is a flowchart for checking the paper conveyance length.
The figure is a control block diagram. 101, Sl... Population sensor (first paper sheet detection means) 102, S2... Paper discharge sensor (second paper sheet detection means) 103... ...Paper feeding means 10
4...... Information output means 106
......................................Control means 107.31
...Paper size display means 200...
...Laser beam printer main body 15- Fig. 2 LI L2 L3 LA

Claims (1)

[Scope of Claims] ([) A printer device that uses paper sheets is provided with at least one paper sheet detection means in its conveyance path, and generates size information about the paper sheets as they pass through. A recording device characterized in that it compares the size with a required size and displays a size error if the two do not match. (2. The recording apparatus according to claim 1, wherein when the size error occurs, the previous print information is recorded during the next print.