JP2002302297A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording device capable of simplifying the so-called jam processing of a recorded medium, and minimizing waste of the expensive recorded medium. SOLUTION: A manual paper feeding port 1 into which paper (the recorded medium) is manually inserted from an arrow A direction is provided. From the manual paper feeding port 1, the paper cut in a fixed form size is manually inserted. A device body 10 is provided with a paper feeding path that is not shown in the Fig. A manual paper presence or absence sensor 2 and a sensor 6 in front of a register are provided at a position opposite to a generally center portion of the paper in a carrying path L carrying the paper manually inserted from the manual paper feeding port 1, so as to detect the presence or absence of the paper. These sensors 2, 6 can be disposed in either one of upper and lower sides of the carrying passage L so as to opposite to a front surface or a back surface of the paper W. A paper position sensor 3 detects the position of the paper set in the manual paper feeding port 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus provided with a manual supply port for manually supplying a recording medium, and is applicable to, for example, a printer or a facsimile machine having a manual supply port. It relates to a recording device.

[0002]

2. Description of the Related Art Conventionally, in a recording apparatus having a manual feed port (hereinafter, also referred to as a "manual feed port") for a recording medium, when an abnormality is detected during manual feed, it is determined that a so-called jam has occurred, and the recording is performed. In order to protect the apparatus, the conveyance of the paper (recording medium) is stopped and the user is notified of the abnormality.

[0003]

However, such a method has the following problems. That is, when the recording medium is a sheet of a small cut sheet size such as A4 size, the unit price per sheet is as low as several yen,
If it is a large-sized paper such as B0 size, it becomes expensive exceeding several thousand yen per sheet. Discarding this large size paper as jam paper is a great economic waste. In addition, there is a problem that it takes too much time to open and close the cover for removing the jammed paper and to recover from the jam during the jam processing.

An object of the present invention is to provide a recording apparatus capable of simplifying the so-called jam processing of a recording medium and minimizing waste of an expensive recording medium.

[0005]

According to the present invention, there is provided a recording apparatus provided with a transport path for transporting a recording medium manually inserted from a manual feed port to a predetermined recording operation position. Detecting means for detecting the occurrence of a clogging cause for clogging in the conveyance path; and discharging the recording medium in the conveyance path from the manual feed port when the detection means detects the occurrence of the clogging cause. Discharging means for discharging the toner.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic side view for explaining the structure of the main part of an apparatus main body 10 in the recording apparatus of the present invention, and FIG.
2 is a schematic plan view of the apparatus main body 10. FIG. A sheet (recording medium) W is indicated by an arrow A on the right side in FIG.
Manual feed port (manual feed port) 1 that can be manually inserted from any direction
Is provided. From the manual feed port 1, a sheet W cut into a standard size is manually fed. Further, the apparatus main body 10 is provided with a paper feed path (not shown) for carrying the paper W in the direction of arrow B. The paper feed sensor 2 and the pre-registration sensor 6 detect the presence or absence of the paper W in the transport path L that transports the paper W manually fed from the manual paper feed port 1 as shown in FIG. It is provided at a position facing the central portion. These sensors 2 and 6 may be arranged either above or below the transport path L so as to face the front or back surface of the paper W. The paper sheet position sensor 3 detects the position of the paper sheet W set in the manual paper feed port 1 by the user. Therefore, the sensor 3 needs to be disposed so as to face either the right end or the left end of the sheet W. In the case of this example, the sensor 3 is provided at a position facing the right side of the sheet W. On the exterior part of the apparatus main body 10, marking is applied at the same position as the center position P0 of the paper sheet position sensor 3, and the user adjusts the right end of the leading end of the paper W to the marked position. ,
The paper W is inserted from the manual paper feed port 1. The paper sheet position sensor 3 determines that the right end of the paper W is within the allowable range S.
When it is detected that the paper is positioned inside the paper feeder, paper feed processing from the manual paper feed port 1 becomes possible.

In FIGS. 1 and 2, reference numeral 4 denotes a manual feed roller, 5 denotes a paper slack space that allows the paper W to be slackened, 7 denotes a guide roller, and 8 denotes a paper transport roller. It is provided along. Reference numeral 9 denotes a recording unit which performs recording on a sheet W conveyed below the recording unit. The recording unit 9 includes a serial scanning type recording head that reciprocates in the front and back directions on the paper surface in FIG.
And a full-line type recording head extending over the entire recording area in the width direction. Further, as the recording head, those of various recording systems including an ink jet recording head for discharging ink can be adopted. Further, as the ink jet recording head, for example, a head provided with an electrothermal converter for causing film boiling of ink can be used. The ink jet recording head has a configuration in which a film boiling occurs in the ink by thermal energy generated by the electrothermal transducer, and the ink is ejected from an ink ejection port using the foaming energy.

FIG. 3 is an explanatory diagram of sensors 2, 3, and 6 for checking the presence or absence of paper W. In the case of this example, an optical reflection type photosensor PS as shown in FIG. 4A was used as these sensors 2, 3, and 6. The reflection-type photo sensor PS emits infrared light converted from an electric signal into the light emitting unit PS.
Light is emitted from 1 toward a reflection object (paper W). When there is no reflective object, the absence of the reflective object (paper W) is electrically detected by no output from the light receiving unit PS2, and when there is a reflective object, infrared light is applied to the light receiving unit PS2. Then, the presence of the reflection object (paper W) is electrically detected. As the light emitting unit PS1 and the light receiving unit PS2, a photodiode and a phototransistor can be used as shown in FIG. The manual sheet presence sensor 2 and the pre-registration sensor 6 have a unit configuration in which a light emitting unit PS1 and a light receiving unit PS2 are set one by one. Further, the paper position sensor 3 includes sensor units 3 on the left and right sides in FIG.
A, 3B, and the left and right sensor units 3
A and 3B respectively have a light emitting unit PS1 and a light receiving unit PS2.
Are set unit by unit.

FIG. 5 is an explanatory diagram showing the relationship between the detection results of the sensors 2, 3, and 6 and the determination results. In the case of this example, with reference to the center position P1 of the sheet position sensor 3,
The left and right sensor units 3A and 3B are arranged, and the presence or absence of the paper W is determined according to a combination of the detection results.

The control system of the printing apparatus according to the present embodiment includes a CPU for executing control processing of the operation of the printing apparatus, data processing, and the like, a ROM in which programs such as processing procedures are stored, and a ROM for executing the processing. And a RAM used as a work area or the like. For example, in the case where an ink jet recording head having the above-described electrothermal transducer is used as the recording unit 9, the CPU ejects ink from the recording head by driving data (image data) and driving of the electrothermal transducer. This can be performed by supplying a control signal (heat pulse signal) to the head driver. The CPU controls the paper transport motor based on the detection results of the sensors 2, 3, and 6 to execute the transport operation of the paper W as described later.

Next, the control of manual sheet feeding will be described with reference to the flowchart of FIG.

First, the presence / absence of the paper W inserted from the manual paper feed port 1 is confirmed by the manual paper presence / absence sensor 2 (S101). When the presence of the paper W is detected, the set position of the paper W is detected by the paper position sensor 3 (S102). When the paper W is set in a normal position, the paper position sensor 3 detects the presence of the paper W by the left sensor unit 3A and the presence of the paper W by the right sensor unit 3B as shown in FIG. Detect. These sensors 2,
If both the presence / absence state and the position state of the sheet W are correctly confirmed in step 3, the process waits for a predetermined sensor stabilization time (1 second in this example) to elapse (S103). Thereafter, the presence / absence state and the position state of the paper W are confirmed again by the sensors 2 and 3 (S104, 105). Then, when both the presence / absence state and the position state of the sheet W are correctly confirmed again, the sheet feeding operation is started. That is, first, the manual feed roller 4 is rotated at a constant speed in the transport direction (S106).

Then, a jam monitoring timer (not shown) in which a predetermined abnormality determination time is set is started (S10).
7). The abnormality determination time is calculated and set as follows. That is, the length of the paper W that can be slackened in the paper slack space 5 therebetween is added to the linear distance between the manual feed roller 4 and the pre-registration sensor 6, and the total length thereof is calculated as the paper length. Divided by the transport speed of W to determine the transport time,
The transfer time is set as the abnormality determination time. And
After the jam monitoring timer is counted up (S108), it is determined whether or not the jam monitoring timer has timed out (S109), the presence or absence of paper by the manual paper presence sensor 2 (S110), and the presence of the pre-registration sensor 6 The presence or absence of a sheet is confirmed (S111). The pre-registration sensor 6 detects the leading end of the sheet W when the leading end of the sheet W is conveyed to that position. If the jam monitoring timer times out before the leading edge of the paper W reaches the pre-registration sensor 6, it is determined that a small paper outside the minimum specification has been manually fed as the paper W, and the process proceeds from step S109 to step S200. Then, it is determined that an error has occurred in the manual sheet feeding. If the manual paper sensor 2 detects the absence of the paper W before the leading end of the paper W reaches the pre-registration sensor 6, it is determined that the paper W has run out and a so-called paper break has occurred. The process proceeds from step S110 to step S200 to determine that an error has occurred in the manual sheet feeding.

If the leading edge of the paper W is detected by the pre-registration sensor 6 before the jam monitoring timer times out, it is determined that the paper W has been manually inserted manually, and the line end of the paper W is guided. The sheet W is transported for a predetermined time so as to reach the roller 7 (S112).
The transfer time is determined and set as follows. That is, the distance between the pre-registration sensor 6 and the guide roller 7 and the length of the paper W loosened in the paper slack space 5 are summed, and the time obtained by dividing the total length by the conveyance speed of the paper W is obtained. The transfer time. This transport time affects the strength of the leading edge of the paper W hitting the guide roller 7 and the leading edge of the paper W learning parallel to the roller 7. After the elapse of such a predetermined transport time, the manual feed roller 4 is stopped (S113), and a standby state is set. Thereafter, the process proceeds to a control process (S114) for a predetermined paper feed operation. In the control process, the paper feed roller 8 and the manual feed roller 4 are started synchronously. Since the guide roller 7 is in contact with the paper transport roller 8, the transport of the paper W is started when the leading end of the paper W is sandwiched between them. After the leading end of the paper W has been transported to a predetermined position, the paper transport roller 8 and the manual paper feed roller 4 stop and prepare for the recording operation by the recording unit 9.

In step S200, when an abnormality in the manual paper feed is detected, first, the manual paper feed roller 4 is temporarily stopped (S201). Thereafter, the paper feed roller 4 is started to rotate in the reverse direction (S202), and the operation of discharging the paper W from the manual paper feed port 1 is performed for a predetermined discharge conveyance time (S203). The discharge transport time is determined and set as follows. That is, the distance between the pre-registration sensor 6 and the manual paper feed port 1 and the length of the paper W loosened in the paper slack space 5 are summed, and the total length is determined by the transport speed of the paper W. The divided time is set as a scheduled discharge time, and a predetermined margin time (several seconds) is added to the scheduled discharge time to obtain a discharge transfer time. After the elapse of the discharge conveyance time, the manual feed roller 4 is stopped (S204). Thereafter, in order to confirm that the user has pulled out the paper W from the manual paper feed port 1, the paper W is detected by the manual paper presence sensor 2.
Is detected (S205). When the manual feed cam presence / absence sensor 2 detects the absence of the paper W, it is determined that the paper W has been removed from the manual paper feed port 1 by the user, and the state returns to the manual paper feed enabled state.

[0017]

As described above, according to the present invention, when a cause of clogging of a recording medium in the transport path occurs, the recording medium is ejected from the manual feed port, whereby the recording medium It is possible to simplify so-called jam processing and minimize waste of expensive recording media.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a main part of a recording apparatus according to the present invention.

FIG. 2 is a schematic plan view of a main part of the recording apparatus of FIG.

FIG. 3 is an explanatory diagram of a sensor provided at a manual feed paper port in the recording apparatus of FIG. 1;

4A is a schematic configuration diagram of a reflection-type photosensor that can be deployed in the recording apparatus of FIG. 1, and FIG. 4B is a circuit configuration diagram of the reflection-type photosensor.

FIG. 5 is an explanatory diagram of a relationship between a detection result of a sensor provided in the recording apparatus of FIG. 1 and a determination content.

FIG. 6 is a flowchart for explaining manual paper feed control in the recording apparatus of FIG. 1;

[Explanation of symbols]

 1 manual feed port 2 manual feed sensor 3 paper position sensor 4 manual feed roller 5 paper slack space 6 pre-registration sensor 7 guide roller 8 paper transport roller 9 recording unit 10 main unit L transport path

Continued on the front page F-term (reference) 2C056 EA20 EB13 EB36 EB38 EB44 FA03 HA28 2C060 BC03 BC12 BC13 BC22 BC96 BC98 3F048 AA02 AA04 AB01 BA14 BB02 CC01 DC13 EA13 EB21 3F049 AA04 CA01 DA12 LA07 LB03 3F08 BB03 A0102

Claims (10)

[Claims] In a printing apparatus provided with a transport path for transporting a recording medium manually inserted from a manual feed port to a predetermined recording operation position, a cause of clogging of the recording medium in the transport path has occurred. Detecting means for detecting the occurrence of the cause of the jam, and discharging means for discharging the recording medium in the transport path from the manual feed port when the detecting means detects the cause of the jam. Recording device. 2. A transport device, comprising: a roller that rotates the roller in one direction to introduce a recording medium from the manual feed port into the transport path; and the discharge unit rotates the roller in another direction to rotate the transport medium. The recording apparatus according to claim 1, wherein the recording medium in a road is discharged from the manual feed port. 3. The method according to claim 1, wherein the detecting unit detects that the recording medium reaches a predetermined position in the transport path during a time period in which the transport path of the recording medium by the transport path elapses a predetermined time from a predetermined reference time. 3. The recording apparatus according to claim 1, wherein a time when the clogging is not performed is detected as a time when the cause of the clogging occurs. 4. The conveyance path includes a first roller that introduces a recording medium from the manual feed port, and a second roller that conveys the recording medium introduced by the first roller to the recording operation position. The detection unit includes a timer that measures an elapsed time from a rotation start time of the first roller, and the recording medium that is positioned between the first roller and the second roller in the transport path. 4. The recording apparatus according to claim 3, further comprising: a sensor for detecting presence / absence of an image. 5. The recording apparatus according to claim 4, wherein a space is provided between the first roller and the second roller in the transport path to allow the recording medium to be loosened. . 6. The method according to claim 1, wherein the detecting unit is configured to move the recording medium away from a predetermined position in the transport path while the transport time of the recording medium by the transport path elapses a predetermined time from a predetermined reference time. The recording apparatus according to claim 1, wherein a time when no clogging occurs is detected as a time when the cause of the clogging occurs. 7. The conveyance path includes a first roller that introduces a recording medium from the manual feed port, and a second roller that conveys the recording medium introduced by the first roller to the recording operation position. The detection unit detects a presence / absence of the recording medium positioned between the first roller and the manual feed port, and a timer that measures an elapsed time from a rotation start time of the first roller. The recording device according to claim 6, further comprising a sensor. 8. The recording apparatus according to claim 1, further comprising means for detecting whether or not the recording medium has been manually inserted at a predetermined position in the manual feed port. . 9. A recording apparatus according to claim 1, wherein recording is performed on the recording medium transported to the recording operation position using an inkjet recording head capable of discharging ink.
9. The recording device according to any one of items 1 to 8. 10. The recording apparatus according to claim 9, wherein the inkjet recording apparatus has an electrothermal converter that generates thermal energy used for discharging ink.