JP2002187332A - Jam display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jam display in which efficiency of unjamming work can be enhanced by displaying a jam guide required by a user. SOLUTION: A digital composite machine comprises a touch panel liquid crystal display(LCD), and a CPU for displaying a plurality of jam points A-F in the apparatus on the LCD. The CPU is set to display a jam guide related to a jam point selected by a user on the LCD. More specifically, the user can display a jam guide related to a desired jam point by selecting one of the plurality of jam points A-F.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jam display device provided in a printing apparatus, which detects a jam of a sheet and displays a detection result on a display screen.

[0002]

2. Description of the Related Art Conventionally, a large-sized copying machine (printing apparatus) is provided with a jam display system for notifying a user of a sheet jam position. This system includes a jam detection sensor that detects occurrence of a jam (conveyance abnormality; sheet jam, etc.) in a sheet that is conveyed, and a plurality of position sensors that detect a sheet conveyance position (a position on a conveyance path). Have.

In this system, when the occurrence of a jam is detected by a jam detection sensor, the operation of the entire apparatus is stopped. Further, the position sensor detects a jam position (abnormal stop position; a position where a sheet is jammed), and displays a detection result on a display panel in order to prompt the user to perform a jam process (a jam clearing process; a returning operation). It is set as follows.

However, the display of the jam position in this system shows a schematic cross-sectional view (illustration) of the copying machine, and merely marks the position corresponding to the jam position in the illustration.

[0005] For this reason, a user who is not accustomed to the operation is in a psychological state in which the user tends to lose his / her normal state due to the occurrence of a trouble. I will. In particular, if there are many doors for jam clearance, unnecessary doors will be opened, or the same door will be opened and checked several times, and it will be very time-consuming to return. .

Therefore, in the copying machine described in Japanese Patent Application Laid-Open No. 2000-53275, it is set so that a jam processing procedure (jam guide) is displayed on a screen together with the above illustration. Japanese Patent Application Laid-Open No. H10-107940 discloses a technique for displaying a jam guide using a plurality of images set for each processing procedure.

[0007]

Incidentally, the above-mentioned jam may occur simultaneously and frequently at a plurality of positions in a copying machine.

However, Japanese Patent Application Laid-Open No. 2000-53275
The copier disclosed in the publication does not assume a case where a jam occurs simultaneously at a plurality of positions. Therefore, in such a case, an appropriate guidance display cannot be performed.

In the technique disclosed in Japanese Patent Application Laid-Open No. H10-107940, when a jam occurs at a plurality of positions, guidance regarding each jam position is displayed in a predetermined order.

For this reason, unnecessary guidance regarding a known jam position is displayed first, and necessary guidance display regarding an unfamiliar jam position may be postponed.
That is, the required guidance cannot be displayed first,
There is a problem that the efficiency of jam processing is deteriorated.

The present invention has been made to solve such a conventional problem. And the purpose is
It is an object of the present invention to provide a jam display device capable of improving a jam processing efficiency by preferentially displaying guidance necessary for a user.

[0012]

In order to achieve the above object, a jam display device (present display device) according to the present invention is provided in a printing device, and detects the occurrence of a jam in the printing device to detect a jam. In a jam display device set to display the position on the display screen, a control unit that displays the jam position on the display screen, and an input unit that allows the user to select any of the jam positions displayed on the display screen The control unit is characterized in that the control unit is set to display a jam guide relating to a jam position selected by a user on a display screen.

In this configuration, the printing device prints an image on a sheet (recording paper), such as a copying machine, a facsimile machine, or a printer, and outputs the image.

A jam is an abnormality (transfer abnormality) of a sheet in a conveyance path (sheet conveyance path) of a printing apparatus. For example, the jam is caused by a sheet being caught on a wall of the conveyance path or being jammed by a conveyance roller. A state in which the sheet cannot be conveyed normally. The jam position refers to a position where such a jam has occurred (a position in the printing apparatus or in the transport path).

In this display device, the occurrence of such a jam is detected by using a sensor or the like provided in the transport path to specify the jam position. The control unit is set so as to display the specified jam position on a display screen provided in the present display device or the printing device.

[0016] In particular, in the present display device, the control unit includes:
The setting is made so that a jam guide relating to the jam position is displayed on the display screen. Here, the jam guide is guidance indicating a procedure of a jam process (process for eliminating a jam) regarding each jam position, and includes an illustration and a description.

Further, the present display device has an input unit for allowing the user to select one of the jam positions displayed on the display screen. In the present display device, the control unit is set so that the user can display information relating to the selected jam position when the jam guide is displayed.

Thus, when a jam occurs simultaneously and frequently at a plurality of locations of the printing apparatus, the user can selectively display a jam guide relating to a desired jam position on the display screen.

Therefore, when a jam occurs at an unfamiliar position (for which the jam processing method is unknown), the user can preferentially refer to the jam guide relating to the position by selecting the position on the screen. This can shorten the time until the required guidance is displayed as compared with a device that sequentially displays the jam guides at each jam position, thereby improving the jam processing efficiency.

When a jam occurs in the printing apparatus, the control unit prints an illustration showing the transport path of the printing apparatus.
It is preferable that a setting is made such that a jam map in which a mark indicating a jam position is superimposed is created and displayed on a display screen. In this configuration, the jam position at which the jam guide is displayed is determined according to the selection of the mark by the user.

Thus, the jam position can be clearly displayed by the illustration, so that even a user unfamiliar with the printing apparatus can easily perform the jam processing.

Incidentally, some printing apparatuses are provided with a plurality of units for executing each step of the printing process. By configuring the printing apparatus with such units, maintenance and replacement can be performed for each unit, so that the maintenance cost of the printing apparatus can be reduced.

Usually, such a unit can be attached to and detached from the main body frame of the printing apparatus.
Therefore, when a jam occurs in any of the units of such a printing apparatus, the unit is pulled out of the main body frame and set to perform the jam processing for each unit.

Further, the present display device can be satisfactorily applied to a printing device having the above configuration. At this time, when a plurality of jam positions are set in one unit, the control unit removes all jams in this unit at once regardless of which of the plurality of jam positions is selected. Is preferably set to be displayed on the display screen.

Thus, when a jam occurs at a plurality of positions in one unit, the user can perform the processing for all the jam positions only by referring to one jam guide. Therefore, the efficiency of the jam processing can be improved.

Further, in such a case, if the jam processing is performed individually for each jam position, the sheet for the unprocessed jam is damaged when the unit is attached or detached, and a part of the sheet is left behind in the printing apparatus. Could be For this reason, in the present display device, it is preferable to prevent the sheet from being damaged by displaying the jam guide as described above.

In this display device, the control unit is set so as to display a warning screen on the display screen for requesting that the procedure indicated by the jam guide be observed before displaying the jam guide. Is preferred.

Thus, the user is urged to stop the jam processing in an incorrect procedure. Further, as described above, when a plurality of jams occur in one unit, if the jam processing procedure is erroneous, there is a possibility that the jammed sheet may be damaged. Therefore, the warning display as described above is particularly important.

[0029]

Embodiments of the present invention will be described below.

FIG. 2 is an explanatory diagram showing a schematic configuration of the digital multifunction peripheral 11 in the present embodiment. The digital multifunction peripheral 11 has functions as a copier, a printer, and a facsimile machine, and includes a scanner unit 12 and a laser recording unit 13 as shown in FIG.

The scanner section 12 reads a document image, and includes a document table 14 made of transparent glass, a document cover (document holding) 15, and a document reading section (scanner unit; SU) 16.

The SU 1 installed below the document table 14
Numeral 6 is for reading a document image on the document table 14 line by line, and includes a first scanning unit 17, a second scanning unit 18, an optical lens 19, and a CCD line sensor (photoelectric conversion element) 20. .

The first scanning unit 17 includes the document table 14.
The exposure lamp unit (light source) 2 exposes the document while moving at a constant speed V from left to right along the line.
1. A first reflection mirror 22 is provided. Here, the first reflection mirror 22 guides the reflected light from the original placed on the original placing table 14 to the second scanning unit 18.

The second scanning unit 18 follows the first scanning unit 17 and moves at a speed of V / 2, and includes a second reflecting mirror 23 and a third reflecting mirror 24. Here, the second and third reflection mirrors 23.2
Reference numeral 4 denotes the light from the first reflection mirror 22 and the light from the optical lens 19.
And a CCD line sensor 20.

The optical lens 19 forms an image of the reflected light from the third reflecting mirror 24 on the CCD line sensor 20. The CCD line sensor 20 converts the light imaged by the optical lens 19 into an analog electric signal. The electric signal is converted into digital image data by an image processing unit (not shown) and stored in a memory (not shown). The image data is stored in the laser recording unit 13 according to the output instruction.
Is output to

The laser recording section 13 forms an image on a sheet (recording paper) based on image data.
A laser writing unit (LSU) 25, an electrophotographic processing unit 26, and a sheet transport mechanism 27 are provided.

The LSU 25 is based on image data obtained from the scanner unit 12 or from the outside, and
6 irradiates the photosensitive drum 28 with a laser beam to form an electrostatic latent image. And LSU25
A semiconductor laser light source that irradiates laser light, a polygon mirror that deflects laser light at an equal angular velocity, an f-θ lens that corrects laser light deflected at an equal angular velocity on the photosensitive drum 28 so that it is deflected at an equal angular velocity, and the like. It has.

The electrophotographic processing unit 26 has a function of developing the electrostatic latent image on the photosensitive drum 28 to generate a toner image and electrostatically transferring the toner image to a sheet. The electrophotographic process unit 26 includes a photosensitive drum 28, a charger 29 provided around the photosensitive drum 28, a developing unit 30, a transfer unit 31,
It has a cleaning device 32 and a static eliminator 33.

The charger 29 charges the photosensitive drum 28 to a predetermined potential. The developing device 30 develops the electrostatic latent image on the photosensitive drum 28 with toner to generate a toner image. The transfer device 31 includes the photosensitive drum 2
No. 8 is transferred to a sheet. Further, the cleaning device 32 collects excess toner remaining after the transfer from the photosensitive drum 28.

The sheet transport mechanism 27 has a function of supplying the sheet to the electrophotographic processing unit 26, fixing the image transferred to the sheet, and discharging the sheet to the outside. The sheet transport mechanism 27 includes a transport unit 3
4, paper feed cassettes 35 to 38, manual paper feed tray 39,
Fixing section 40, paper discharge roller 41, sheet detection sensor 42 to
46, a PS roller 50 is provided.

The transport section 34 is for transporting a sheet to a predetermined transfer position (a position where the transfer device 31 is disposed) in the electrophotographic process section 26.

The PS roller 50 is for temporarily holding the conveyed sheet. Then, it has a function to convey the sheet to the transfer unit 31 in a timely manner in accordance with the rotation of the photosensitive drum 28 so that the toner image on the photosensitive drum 28 can be transferred to the sheet satisfactorily.

That is, based on the detection signal output from the pre-registration detection switch (not shown), the PS roller 50 pushes the sheet so that the leading end of the toner image on the photosensitive drum 28 is pressed against the leading end of the printing range of the sheet. It is designed to be transported.

The paper feed cassettes 35 to 38 store sheets and feed the sheets to the transport section 34. Further, the manual paper feed tray 39 is
Then, the sheet is supplied manually.

The fixing unit 40 fixes the toner image transferred on the sheet to the sheet by heating and pressing the sheet. The discharge roller 41 is a transport roller that supplies the sheet discharged from the fixing unit 40 to the discharge tray 47.

The sheet detection sensors 42 to 46 are provided in the sheet conveyance path, and detect the passage of the sheet at the installation position of each of the sensors 42 to 46. Further, the sheet detection sensors 42 to 46 also have a function of detecting a sheet jam (transport abnormality) in the digital multifunction peripheral 11. The operation of the sheet detection sensors 42 to 46 will be described later.

Next, the transfer unit of the digital MFP 11 will be described.

The digital multifunction peripheral 11 includes a fixing unit 40 and a transfer unit 3 as shown by a dotted line in FIG. 1 in order to cope with a sheet jam detected by the sheet detection sensors 42 to 46.
1, a transfer unit 48 in which the static eliminator 33 and the PS roller 50 are unitized.

On the front side of the transfer unit 48, an openable / closable cover (not shown) is provided. further,
As shown in FIG. 13D, the fixing unit 40 is provided with a left knob 52, and the PS roller 50 is provided with a right knob 5.
3 are provided. Further, as shown in this figure, the transfer unit 48 is provided with a handle 54. Further, as shown in FIG. 13F, an openable and closable paper guide 55 is provided on a side surface of the transfer unit 48 on the fixing unit 40 side.

When the cover is opened and the left knob 52 is manually turned, the fixing roller of the fixing section 40 can be rotated. When the right knob 53 is manually turned, the PS roller 50 can be rotated.

Further, the handle 54 of the transfer unit 48
The transfer unit 48 can be pulled out by opening the transfer unit 48, and the transport path near the transfer unit 48 can be opened. Further, by opening the paper guide 55, the inside of the fixing unit 40 can be opened.

That is, in the digital multifunction peripheral 11, the fixing unit 40 and the transfer device 3 are
1. By configuring the static eliminator 33 and the PS roller 50, the sheet conveyance path can be easily opened.
Therefore, it is possible to easily perform the jam processing.

In FIG. 13, for convenience, the handle and the like are assigned member numbers, but such member numbers are not displayed on the actual screen. The same applies to FIGS. 10 and 11.

Next, the control configuration of the digital multifunction peripheral 11 will be described.

FIG. 3 is a block diagram of a control system showing a state where the operation of each unit of the entire digital multifunction peripheral 11 is managed by the central processing unit 101.

The central processing unit 101 manages each driving mechanism of the digital multifunction peripheral 11 by sequence control and outputs a control signal to each driving mechanism. Here, the driving mechanism unit includes the image data input unit 102 (control unit of the scanner unit 12), the image processing unit 103, the image memory 104, and the image data output unit 105.
(Control unit of the LSU 25) means a communication interface 51 for transmitting and receiving image data to and from the outside.

Further, the central processing unit 101 and the operation board unit 106 having an operation panel are connected in a state where they can communicate with each other. This operation board unit 1
Reference numeral 06 denotes a unit for transferring a control signal to the central processing unit 101 in accordance with a user setting (copying mode content and the like) input to the operation panel 111 shown in FIG. Thus, the central processing unit 101 controls the entire operation of the digital multifunction peripheral 11 in accordance with the settings of the user.

The central processing unit 101 transmits a control signal indicating an operation state of the digital multifunction peripheral 11 and transmits the control signal to the operation board unit 106. In response to this signal, the operation board unit 106 operates the digital MFP 11
Is displayed on the operation panel so that the user can grasp it.

Here, the configuration of the central processing unit 101 and the operation board unit 106 in the digital multifunction peripheral 11 will be described.

FIG. 4 is a block diagram showing the configuration of the central processing unit 101 and the operation board unit 106 in the digital multifunction peripheral 11.

As shown in FIG. 4, the central processing unit 10
1 includes a central processing unit (CPU, jam display device, control unit) 107, a memory 108, a signal input circuit 109, and a load output circuit 110. Here, the signal input circuit 109 inputs a state signal from each unit of the digital multifunction peripheral 11 and controls the load of each unit.

The operation board unit 106 includes an operation panel 111 composed of a touch panel liquid crystal display device (LCD, jam display device, display screen and input unit) 113 and operation keys 114, and a central processing unit for controlling these. An operation circuit board 112 including a processing device (CPU) 115 and a memory 116 is provided.

The CPU 1 of the central processing unit 101
07 and the CPU 115 of the operation board unit 106
They are connected so that they can communicate with each other.

Memory 1 in central processing unit 101
Reference numeral 08 denotes information for controlling the sequence of each drive mechanism of the digital multifunction peripheral 11, and a signal input circuit 109.
Information (paper size, paper type, paper remaining amount, etc.) of the digital multifunction peripheral 11, toner information, job setting data for copy, printer, scanner, FAX, etc., display information for displaying on the LCD 113, etc. Is stored.

Based on these information and data, the CPU 10
Reference numeral 7 controls each component so as to operate according to the set mode.

Then, in order to show the current state of the digital multifunction peripheral 11 to the user, the CPU 107
Information indicating the current operation state and an instruction to display the information are transmitted.

On the other hand, the memory 1 of the operation board unit 106
Reference numeral 16 stores display-related data for realizing the display of the content specified by the CPU 107 of the central processing unit 101.

Next, the operation panel 111 of the digital MFP 11 will be described.

FIG. 5 is an explanatory diagram showing the operation panel 111. Further, as shown in FIG.
An LCD 113 is arranged on the left side of the LCD 1. On the right side, a ten key 121, a start key 122, a clear key 123, an interrupt key 124, an all-clear key 12
5 are arranged.

The LCD 113 is a touch panel liquid crystal display capable of switching between various screens and displaying a graphic as described later.

That is, in a plurality of screens displayed on the LCD 113, touch keys for setting various conditions and selecting display contents desired by the user are arranged. Then, the user can input setting and selection of various conditions by directly pressing the touch key with a finger.

The ten keys 121 of the operation keys 114 are used to input numerical values (such as the number of copies).
The start key 122 is a key for instructing the start of a copying operation. The clear key 123 is a key for clearing the setting of the copy condition displayed on the LCD 113 or for interrupting the copy operation. The all release key 125 is a key for returning the setting of the copy condition to a default value.
The interrupt key 124 is a key for temporarily suspending a copy in progress and allowing another copy.

Next, the operation of the digital multifunction peripheral 11 when a jam occurs in a sheet being printed will be described.

In the digital multifunction peripheral 11, during the printing process,
The occurrence of a jam is detected by the CPU 107 and the sheet detection sensors 42 to 46.

That is, the CPU 107 measures the passage timing of the sheet at each detection position by receiving the detection results of the sheet detection sensors 42 to 46 while operating the timer. When a predetermined time or more elapses before reaching each detection position, and when a sheet does not arrive despite the elapse of the predetermined time, or when the sheet is stagnated without being conveyed, the CPU 107
Is set to judge that a jam has occurred, and to stop all operations of the digital multifunction peripheral 11.

When a jam occurs, the CPU 107 uses the LCD 113 to display a guidance screen (guidance) for prompting the user to clear the jam.

That is, the CPU 107 estimates a jam position (a place where the sheet is jammed and requires a return operation) from the detection results of the sheet detection sensors 42 to 46, creates a jam map, and displays the map on the LCD 113. .

FIGS. 1, 6, and 7 are explanatory diagrams showing this jam map. As shown in these figures, the jam map displays the transport path of the digital multifunction peripheral 11 as an illustration, and displays the jam position in the illustration with a ▼ mark.

Further, when the user selects (presses) any of the ▼ marks, the CPU 107 sets L
The display of the CD 113 is switched so that guidance (jam guide) indicating a jam processing procedure at a position corresponding to the selected mark is displayed.

FIGS. 8 to 13 show ▼ A to ▼ E shown in FIG.
FIG. 4 is an explanatory diagram showing a jam guide (jam release guidance) at a position corresponding to FIG. As shown in these figures, the jam guide is a combination of an illustration and a description of the work content, and includes a number of screens corresponding to the number of procedures.

Then, on the screen showing the jam guide, for example, as shown in FIG.
A "next step" key is provided. The CPU 107
When the user presses the “next procedure” key, a screen indicating the procedure to be executed next is set.

Further, for example, as shown in FIG. 9B, at the lower right of the screen showing the last procedure of the jam guide,
A “from the beginning” key is provided instead of the “next step” key. The CPU 107 is set to display a jam guide screen indicating the first procedure on the LCD 113 when the “from the beginning” key is pressed by the user. That is, by pressing this key, the jam guide can be checked again from the first step.

For example, as shown in FIG.
At the upper right of each jam guide screen, an "end" key is set. The CPU 107 is set to end the display of the jam guide when the “end” key is pressed by the user. At this time, the CPU 107
If a jam still remains in the digital multifunction peripheral 11, the display on the LCD 113 is returned to the jam map.

When the CPU 107 confirms that all jams have been eliminated, the CPU 107 does not depend on the display contents of the LCD 113 (even if a jam guide is displayed or a jam map is displayed). The LCD 113 is set to return to a normal screen display for displaying main setting conditions such as a paper size, a magnification, and the number of sheets.

Here, the jam guide shown in FIGS. 8 to 12 will be briefly described.

FIG. 8 shows a jam guide corresponding to ▼ A (abnormal stop position A). ▼ A is the manual feed tray 39
The jam position in the vicinity (manual paper feed unit) is shown. FIG. 8 is a screen showing an operation for removing a sheet jammed in the manual paper feed tray 39.

FIGS. 9A and 9B are jam guides corresponding to ▼ B (abnormal stop position B). ▼ B indicates a jam position near the paper cassette 35 (cassette paper feeding unit). FIG. 9A is a screen showing an operation of pulling out the sheet feeding cassette 35 used for sheet feeding.
FIG. 4B is a screen showing the operation of checking the presence or absence of a stagnant sheet in the vicinity of the sheet cassette and aligning the sheets in the sheet cassette 35.

FIGS. 10A to 10D show jam guides corresponding to ▼ C (abnormal stop position C). ▼ C
Indicates a jam position near the PS roller 50 (registration conveying unit). FIG. 10A is a screen showing an operation of opening the front cover of the main body, and FIG.
4 is a screen showing an operation of defeating No. 4. Then, FIG.
8 is a screen showing the operation of turning the right knob 53 to feed the sheet sandwiched between the PS rollers 50 to the transfer unit 48. Further, FIG. 10D shows the transfer unit 4
8 is a screen showing an operation of pulling out a sheet 8 and removing a sheet.

FIGS. 11A to 11E are jam guides corresponding to ▼ D (abnormal stop position D). ▼ D
Indicates a jam position near the fixing unit 40 (fixing and conveying unit). FIG. 11A is a screen showing an operation of opening the front cover of the main body, and FIG. 11B is a screen showing an operation of tilting the handle 54. FIG. 11C is a screen showing the operation of turning the left knob 52 to feed the sheet sandwiched by the fixing unit 40 to the transfer unit 48, and FIG. It is a screen which shows work which pulls out and removes a sheet. Further, FIG.
(E) is a screen showing the operation of opening the paper guide 55 of the fixing unit 40 and checking the presence or absence of a sheet.

FIGS. 12A and 12B are jam guides corresponding to ▼ E (abnormal stop position E). ▼ E
Indicates a jam position near the transport unit 34 (upper vertical transport unit). FIG. 12A is a screen showing an operation of opening the right side cover (upper) of the digital multifunction peripheral to remove a sheet, and FIG. 12B is a screen showing an operation of closing the cover. Also, the jam guide corresponding to ▼ F (abnormal stop position F) opens the right side cover (lower) of the digital multifunction peripheral in FIG. 12A and FIG. 12B, removes the sheet, and removes the cover. It is a screen which shows a closing operation. In addition, ▼ F indicates a jam position near the transport unit 34 (lower vertical transport unit).

Next, the CPU 1 of the central processing unit 101
The operation of the jam guide display at 07 will be described.

FIGS. 14 and 15 are flowcharts showing the flow of this operation. As shown in FIGS. 14 and 15,
The CPU 107 detects the occurrence of the jam based on the detection signals from the sheet detection sensors 42 to 46 (S
1). Next, jam position information is collected to specify the jam position (S2), a jam map is created, and the LCD 113
(S3). In the following, ▼ shown in FIG.
It is assumed that a jam has occurred in A to ▼ F.

After the jam map is displayed, if one of the ▼ marks in the jam map is selected by the user (S
4), the CPU 107 displays the jam guide at the position corresponding to the selected ▼ mark (S5 to S15).

After displaying the jam guide, the CPU 107
When the end key is pressed by the user (S16 to S16)
21) Or, when it is detected by the detection signals from the sheet detection sensors 42 to 46 that the jam has been eliminated by the user (S22 to S27), the jam guide display is turned off and the state returns to S1 (S28 to S33). ).

As described above, when a jam occurs in the digital multi-function peripheral 11, the CPU 107 displays the jammed position (jam position) on the illustration showing the sheet conveying path.
A jam map is created by superimposing the mark (▼) indicating. Then, the CPU 107 sets this jam map to L
It is set to be displayed on the CD 113.

Further, the CPU 107 is set so that a jam guide indicating a jam processing procedure relating to the jam position selected by the user is displayed on the LCD 113.

Thus, when a jam occurs at an unfamiliar position, the user can preferentially refer to the jam guide relating to the position. Therefore, as compared with a device that sequentially displays the guidance of each jam position, the time until the necessary jam guide is displayed can be shortened, and the efficiency of the jam processing can be improved. Then, it is possible to avoid display of an unnecessary jam guide regarding a jam position known to the user.

In the above-described jam guide display operation, when the CPU 107 determines that all jams have been eliminated, the processing is terminated. However,
The present invention is not limited to this, and the CPU 107 may display a jam guide corresponding to the jam position selected by the user, and may be set to end the process even if a jam remains.

Further, when a jam occurs simultaneously in (C) and (D) shown in FIG. 1, it is preferable to perform these jam processes at the same time. This is because if the jam processing is performed individually, the sheet causing the jam may be damaged, and a part of the sheet may be left in the printing apparatus.

That is, in this case, the sheet protrudes outside the transfer unit 48 from both the fixing unit 40 (fixing roller) and the PS roller 50. Therefore, if one transfer sheet is sent to the transfer unit 48 and then the transfer unit 48 is pulled out without sending the other sheet to the transfer unit 48, the other sheet may be damaged.

Therefore, before the transfer unit 48 is pulled out, the sheets relating to the jam positions ▼ C and ▼ D are fed into the transfer unit 48 at a time, thereby preventing the sheet from being damaged.

FIGS. 13 (a) to 13 (f) are jam guides showing a jam processing procedure when a jam occurs simultaneously in ▼ C and ▼ D (when ▼ C and ▼ D are lit simultaneously). . This jam processing will be briefly described.

FIG. 13B is a screen showing the operation of opening the front cover of the main body, and FIG. 13C is a screen showing the operation of tilting the handle 54. FIG. 13D is a screen showing an operation of turning the left knob 52 and the right knob 53 to feed a sheet to the transfer unit 48. FIG.
(E) is a screen showing the operation of pulling out the transfer unit 48 and removing the sheet. FIG. 13F shows the fixing unit 4.
10 is a screen showing an operation of opening a paper guide 55 of No. 0 and checking the presence or absence of a sheet.

As described above, in this work, the PS roller 50
The jam in the vicinity and the jam in the vicinity of the fixing unit 40 are simultaneously eliminated to prevent the sheet from being damaged. Also,
By checking the presence or absence of the sheet by opening the paper guide 55 of the fixing unit 40, the sheet remains in the transfer unit 48 is prevented.

Further, as shown in FIG. 13A, in the jam guide in this case, first, the user is notified of the CP.
U107 is set to display a warning screen on the LCD 113 to comply with the jam guide.

As a result, FIGS. 13 (a) to 13 (f)
Encourage the user to follow the jam guide procedure shown in. Therefore, even if a jam occurs simultaneously in ▼ C and ▼ D, it is possible to prevent the sheet from being damaged as described above.

[0107] Even when a jam occurs simultaneously in ▼ C and ▼ D, that is, when a single jam occurs or when a jam occurs in a place other than ▼ C and ▼ D, a warning screen is displayed. You may make it display on LCD113.

Further, in the present embodiment, the LCD 113
Is a display screen and has a function as an input unit, but the display screen and the input unit may be separate members.

In addition, the screen showing the jam guide of the present embodiment includes an “end key”,
Although a “next procedure key” and a “key from the beginning” are provided, they need not be provided.

Further, in the present embodiment, the transfer unit 48 has been described, but other members of the digital multifunction peripheral 11 may be constituted by similar units detachable from the main body frame.

The central processing unit 101 may transmit a control signal indicating the operation state of the digital multifunction peripheral 11 by receiving a detection result from each detector (sensor) (not shown).

[0112]

As described above, the jam display device (the present display device) of the present invention is provided in a printing apparatus, detects the occurrence of a jam in the printing apparatus, and displays the jam position on a display screen. In the jam display device set to have a control unit for displaying the jam position on the display screen, and an input unit for allowing the user to select any of the jam positions displayed on the display screen, the above control The unit is set so that a jam guide relating to the jam position selected by the user is displayed on the display screen.

In the present display device, the control section is set so that a jam guide relating to the jam position is displayed on the display screen. Furthermore, the present display device has an input unit that allows the user to select one of the jam positions displayed on the display screen. In the present display device, the control unit is set so that the user can display information relating to the selected jam position when the jam guide is displayed.

Thus, when a jam occurs simultaneously and frequently at a plurality of locations in the printing apparatus, the user can selectively display a jam guide relating to a desired jam position on the display screen.

Therefore, when a jam occurs at an unfamiliar position (for which the jam processing method is unknown), the user can preferentially refer to the jam guide relating to the position by selecting the position on the screen. This can shorten the time until the required guidance is displayed as compared with a device that sequentially displays the jam guides at each jam position, thereby improving the jam processing efficiency.

When a jam occurs in the printing apparatus, the control unit prints an illustration showing the conveyance path of the printing apparatus.
It is preferable that a setting is made such that a jam map in which a mark indicating a jam position is superimposed is created and displayed on a display screen. In this configuration, the jam position at which the jam guide is displayed is determined according to the selection of the mark by the user.

As a result, the jam position can be clearly displayed by the illustration, so that even a user unfamiliar with the printing apparatus can easily perform the jam processing.

The present display device can be favorably applied to a printing device having a plurality of units for executing each step of the printing process. At this time, if a plurality of jam positions are set in one unit, the control unit clears all jams in this unit at once regardless of which of the plurality of jam positions is selected. It is preferable that the jam guide for performing the setting is displayed on the display screen.

As a result, the user can perform the processing relating to all jam positions in one unit only by referring to one jam guide. Therefore, the efficiency of the jam processing can be improved.

In such a case, if the jam processing is performed individually for each jam position, the sheet for the unprocessed jam is damaged when the unit is attached or detached, and a part of the sheet is left in the printing apparatus. Could be For this reason, in the present display device, it is preferable to prevent the sheet from being damaged by displaying the jam guide as described above.

In the present display device, the control unit is set so as to display, on the display screen, a warning screen requesting that the procedure indicated by the jam guide be observed before displaying the jam guide. Is preferred.

Thus, the user is urged to stop the jam processing in an incorrect procedure. Further, as described above, when a plurality of jams occur in one unit, if the jam processing procedure is erroneous, there is a possibility that the jammed sheet may be damaged. Therefore, the warning display as described above is particularly important.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a jam map of a digital multifunction peripheral according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a schematic configuration of a digital multifunction peripheral according to an embodiment of the present invention.

FIG. 3 is a block diagram of a control system showing a state in which a central processing unit operates and manages each unit of the entire digital multifunction peripheral shown in FIG. 2;

FIG. 4 is a block diagram showing a configuration of a central processing unit and an operation board unit in the digital multi-functional peripheral shown in FIG.

FIG. 5 is an explanatory diagram showing an operation panel of the digital multi-function peripheral shown in FIG.

FIG. 6 is an explanatory diagram showing another jam map of the digital multi-function peripheral shown in FIG. 1;

FIG. 7 is an explanatory diagram showing still another jam map of the digital multi-function peripheral shown in FIG. 1;

FIG. 8 is an explanatory diagram illustrating a jam guide corresponding to a jam position near a manual sheet feeding tray.

FIGS. 9A and 9B are explanatory diagrams illustrating a jam guide corresponding to a jam position near a sheet feeding cassette. FIGS.

FIGS. 10A to 10D are explanatory views showing a jam guide corresponding to a jam position near a PS roller.

FIGS. 11A to 11E are explanatory diagrams illustrating a jam guide corresponding to a jam position near a fixing unit. FIGS.

FIGS. 12A and 12B are explanatory diagrams illustrating a jam guide corresponding to a jam position near a conveyance unit. FIGS.

FIGS. 13A to 13F are explanatory diagrams showing a jam guide when a jam occurs near the PS roller and near the fixing unit at the same time.

FIG. 14 is a flowchart of a jam guide display operation by the CPU of the central processing unit.

FIG. 15 is a flowchart of a jam guide display operation by the CPU of the central processing unit.

[Explanation of symbols]

Reference Signs List 11 digital multifunction peripheral 12 scanner unit 13 laser recording unit 27 sheet transport mechanism 34 transport unit 35-38 paper feed cassette 39 manual feed tray 40 fixing unit 42-46 sheet detection sensor 48 transfer unit 50 PS roller 52 left knob 53 right Knob 54 Handle 101 Central processing unit 106 Operation board unit 107 CPU (jam display device, control unit) 113 LCD (jam display device, display screen,
Input section)

Claims (4)

[Claims] 1. A jam display device provided in a printing apparatus, wherein the occurrence of a jam in the printing apparatus is detected and the jam position is set to be displayed on a display screen, and the jam position is displayed on the display screen. A control unit, comprising: an input unit that allows the user to select any of the jam positions displayed on the display screen.The control unit displays a jam guide related to the jam position selected by the user on the display screen. A jam display device set to be displayed. 2. The apparatus according to claim 1, wherein the control unit is configured to create a jam map in which a mark indicating a jam position is superimposed on an illustration indicating a sheet conveyance path in the printing apparatus and display the jam map on a display screen. The jam display device according to claim 1, wherein: 3. The printing apparatus includes a plurality of units for executing each step of a printing process, and the jam processing is performed for each unit in which the jam has occurred. When a plurality of jam positions are set in one unit, the control unit performs a jam for eliminating all jams in this unit at once, regardless of which of the plurality of jam positions is selected. The jam display device according to claim 1, wherein the guide is set to be displayed on a display screen. 4. The apparatus according to claim 1, wherein the control unit is configured to display, on the display screen, a warning screen requesting that the user follow the procedure indicated by the jam guide before displaying the jam guide. The jam display device according to claim 1.