# Patent

## Title
Operation unit for formation of an image on a recording medium by an image forming unit in an image forming apparatus

## Abstract

An operation unit configured to control an image forming apparatus, including a mode selector for permitting an operator to select an image data handling mode. A display displays an operation permitted in the selected image data handling mode, the display disposed on a right side of the mode selector. An executing device executes the operation displayed on the display, the executing device disposed on a right side of the display. The display displays a sub-operation based on a selection of the operation, the sub-operation being shown as a pictorial representation of a format of an image to be formed on a recording medium.

## Background
BACKGROUND OF THE INVENTION
The present invention relates to a copier, printer facsimile apparatus or similar image forming apparatus and more particularly to an operation unit including a readable screen for displaying various functions available with an image forming apparatus.
It is a common practice to arrange on, e.g., an electrophotographic machine an input device for allowing the operator to input various copying conditions as well as other conditions. The input device includes a print start key for starting a copying operation, a stop key for stopping it, numeral keys for inputting, e.g., a desired number of copies, and a magnification set key for setting a desired magnification.
Recent diffusion of microcomputers and extension of functions available therewith have implemented various kinds of copiers capable of executing various kinds of control with microcomputers. A microcomputer-controlled copier is capable of easily controlling a sophisticated copying process with a control program. Further, various functions including a function of displaying simple faults, e.g., the absence of papers and paper jams and a function of displaying the number of copies output have been added to the copier, making the most of the merits of a microcomputer. An advanced copier is capable of producing duplex copies each carrying images on both sides thereof, capable of sorting copies one by one, or capable of interrupting a copying operation under way, executing another copying operation, and resuming the previous copying operation after the completion of the interrupt copying operation. This kind of copier not only promotes convenient use, but also enhances efficiency.
Different keys are assigned to the above various functions while different information relating to the functions are displayed on a screen. The number of keys to be operated and the number of information to be displayed naturally increase with an increase in the number of functions available with the apparatus. It is, however, difficult to arrange all of the keys and screen in a limited flat area available on the top of the casing of the apparatus. Should the keys and screen be reduced in size in order to be accommodated in the limited area, they would be difficult to operate. Moreover, a number of keys arranged on the limited area would make the operation appear troublesome to perform. This is particularly true with a dual machine having a combined copier and facsimile function or a combined copier and printer function, and a multiplex machine having a combined copier, facsimile and printer function.
In light of the above, there has recently been put to practical use an image forming apparatus including mechanical keys implementing only a start key, numeral keys and other basic keys and a touch panel implementing set keys and operation keys relating to various functions. The touch panel uses liquid crystal and selectively displays different key portions. Specifically, the apparatus displays information on a branched function step basis in order to make the screen readable, i.e., arranges function keys in a hierarchical fashion. In addition, icons and pop-up pictures as well as devised screen layout are used for reducing troublesome manipulation.
However, the problem with the touch panel scheme is that when the operator performing a sequence of setting steps desires to change any condition already set, the operator must sequentially switch the screen until a function step including the desired condition appears, and then change the condition. This operation is extremely troublesome to perform.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a readable operation unit for an image forming apparatus capable of promoting, while arranging functions hierarchically, the easy understanding of the contents of operation in relation to the other conditions and thereby enhancing the operator's total recognition of the set contents.
In accordance with the present invention, in an operation unit for an image forming apparatus for executing at least a part of various functions relating to image formation hierarchically by switching a screen, items representative of the various functions are displayed on the screen while being classified and divided from each other.



BRIEF DESCRIPTION OF THE DRAWINGS
The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description taken with the accompanying drawings in which:
FIG. 1 is a block diagram schematically showing a control system included in an image forming apparatus to which an operation unit embodying the present invention is applied;
FIG. 2 is a plan view showing a specific configuration of the operation unit;
FIG. 3 shows a specific initial picture to appear on a screen or touch panel in a copy mode;
FIG. 4 shows a specific picture to appear on the screen for registering or calling a program;
FIG. 5 shows another specific initial picture;
FIG. 6 shows a specific condition in which functions are set;
FIG. 7 shows a specific picture to appear during copying;
FIG. 8 shows a specific pop-up picture showing the kinds of documents in detail;
FIG. 9 is identical with FIG. 8 except that “Photo” is highlighted;
FIG. 10 shows the kinds of documents arranged in the basic picture;
FIG. 11 shows a condition wherein slightly high image density is selected;
FIG. 12 shows a specific pop-up picture displaying details of special document feed;
FIG. 13 shows a specific picture to appear at the time of manual paper feed;
FIG. 14 shows a specific picture for selecting paper-priority magnification change after the selection of an integrated copying function;
FIG. 15 shows a specific picture for selecting an editing function;
FIG. 16 shows a specific picture for erasing a frame;
FIG. 17 shows a specific picture for selecting a cover/slip sheet function;
FIG. 18 shows a specific picture for selecting a duplex/integration/division function;
FIGS. 19-22 show specific pictures relating to the duplex/integration/division function;
FIG. 23 shows a specific initial picture to appear on the screen when a stored file printing function is selected;
FIG. 24 shows a specific picture for reading documents to be stored; and
FIG. 25 shows a specific picture for setting conditions after the selection of a stored file.



While FIGS. 3-25 show various information in Japanese, the information may, of course, be shown in any other language.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 1 of the drawings, a control system included in an image forming apparatus is shown and includes an operation and display section 8. The operation and display section 8 is representative of an operation unit embodying the present invention. As shown, a microprocessor 1 is connected to a ROM (Read Only Memory) 3, a RAM (Random Access Memory) 4, a nonvolatile RAM (NVRAM) 5, and I/O (Input/Output) port 6 and a serial CCU (Communication Control Unit) 7 by an address, data and control bus 2. The microprocessor 1 executes a program assigned to the image forming apparatus. The I/O port 6 is connected to motors, solenoids and other output loads and sensors arranged in the image forming apparatus. The serial CCU 7 interchanges signals with the operation and display section 8.
FIG. 2 shows a specific configuration of the operation and display section 8. As shown, a touch panel type screen 80 is positioned at substantially the center of the section 8 for displaying the statuses of the apparatus and messages. The screen 80 is implemented by a touch panel and an LCD (Liquid Crystal Display). Circuitry for detecting touch panel keys and a coordinates detecting method are conventional and will not be described specifically. Numeral keys and an enter key (#) 81 are arranged at the right-hand side of the screen 80. A start key 82 is positioned at the right-hand side of the numeral keys 81 and implemented as a disk greater in diameter than the numeral keys 81. A clear/stop key 83 is interposed between the numeral keys and enter key 81 and the start key 82 for canceling a numerical value input or interrupting or ending a copying operation. Arranged above the numeral keys and enter key 81 are a program key 84, a reset/preheat key 85, and an interrupt key 86. A trial copy key 87 is positioned beneath the interrupt key 86. When a plurality of copies are desired, a trial or first copy may be produced in order to determine the quality of the image. A set/counter key 88 is located at the top left of the screen 80 for varying initial set values and operating conditions in accordance with the conditions of use. A copy function key 90, a copy server function key 91 and a printer function key 92 are positioned at the left-hand side of the screen 80 and beneath the set/counter key 88. With these keys 90-92, the apparatus is capable of selectively functioning as a copier, a copy server or a printer, as desired. The mechanical configuration and operation of the apparatus including such an operation and display section are conventional and will not be shown or described specifically. While the operation and display section 8 is applied to a multiplex machine, it is similarly applicable to a copier, facsimile apparatus, printer or similar singular image forming apparatus.
FIG. 3 shows a specific basic or initial picture to appear on the screen 80, FIG. 2, when the apparatus is operated in a copier mode. As shown, the basic picture includes a first area 80a allowing the operator to input a kind of documents, desired copy density, and special document feed. A second area or message area 80b displays operation statuses and messages including “Ready to copy.” shown in FIG. 3. A third area 80c displays the remaining capacity of a memory in percentage or displays a connection copy key when a connection unit is set, as illustrated. A fourth area 80d displays the number of documents written to the memory, the number of documents (sets of documents) set, and the number copies (sets of copies) produced. A fifth area 80e allows the operator to select a sort mode, a stack mode, a staple mode or a punch mode, as desired. A sixth area 80f displays the contents of registered functions that are often used. To register desired functions, the operator presses the program key 84, FIG. 2, in order to call a picture shown in FIG. 4. The picture shown in FIG. 4 allows the operator to register up to ten different functions. A seventh area 80g displays function items (tabs). When the operator touches, e.g., a “Magnification Change” key belonging to a group of function items, a magnification change picture appears from below. If desired, “Manual Feed” that is another function item may appear when a manual feed tray, not shown, is opened.
From the copier operation standpoint, the screen 80 may be divided into a first display section (first area 80a) relating the handling of documents, a second display section relating to the configuration of copies including paper size and magnification change, and a third display section (fifth area 80e). Of course, such display sections may overlap each other, if desired.
FIG. 5 shows a second basic picture that is a simplified version of the basic picture of FIG. 3 and available for a user desiring limited display. As shown, when the operator gives priority to an automatic paper selecting function at the time of initial setting, an “Auto Paper Selection” key appears, but the kinds of paper trays do not appear. When the operator does not touch the magnification change key in the basic picture, only a “x1” key and a “Paper-Priority Magnification Change” key appear. Further, if the operator does not touch any registered function key, no registered function keys appear. In the specific condition shown in FIG. 5, “Available Memory Capacity” appears in place of the connection copy key because no connection units are set. Even such limited display shows the operator reading conditions, copying conditions and whether or not a finisher is present while classing them into discrete sections in a readable way. The operator can therefore touch any one of such sections while recognizing the conditions of the other sections.
FIG. 6 shows a specific picture to appear when the operator selects, e.g., reduction “A3→A4/B4→B5”, duplex spread copying with simplex documents, sorting, and stapling papers at the top left corner in the basic picture shown in FIG. 3. A “Confirm” key may be caused to appear for the first time in the picture shown in FIG. 6. When the start key 82, FIG. 2, is pressed, a picture shown in FIG. 7 appears. As shown, a message “Copying” is shown in the second area 80b while the contents of magnification change is shown over the sixth area 80f and seventh area 80g. In FIG. 7, a “Reserve” key allows the operator to set the contents of the next copying operation while the current copying operation is under way. Specifically, when the operator touches the “Reserve” key, sets the contents of a reserve copying operation, sets documents on an ADF (Automatic Document Feeder), not shown, and presses the start key, the reserve copying operation begins automatically on the completion of the current copying operation.
Assume that the operator touches a “Kind of Document” key in the picture shown in FIG. 3 in order to input the kind of documents. Then, a picture shown in FIG. 8 appears, i.e., only the contents of the first area 80a changes. In FIG. 8, a “Text” key is assigned to documents mainly consisting of characters. A “Text/Photo” key is assigned to documents consisting of photos and characters. A “Photo” key is assigned to photos or graphics. A “Light Document” key is assigned to low density documents including documents written in pencil and counterfoils; thin lines apt to appear discontinuous can be faithfully copied. A “Copy” key is assigned to the copies of documents; the thickening and defacing of characters can be reduced. For example, when the operator touches the “Photo” key in the picture of FIG. 8, a picture shown in FIG. 9 appears. When the operator touches an “OK” key in the picture of FIG. 9, the basic picture of FIG. 3 again appears. If the operator does not select “Simplified Display of Kind of Documents” at the time of initial setting, then the kinds of documents are shown in the basic picture, as shown in FIG. 10.
As for the density of copies, there are available “Auto Density” for automatically setting adequate image density, “Density Control” for allowing the operator to adjust image density in multiple steps, and “Combined Density Control” for allowing the operator to control only the density of an image printed in a dark background. For “Combined Density Control”, in the basic picture of FIG. 3 in which “Auto Density” is highlighted, the operator touches either a “Light” key or a “Dark” key. FIG. 11 shows a picture in which slightly high density is selected in the combined density control condition. In this case, too, only a limited portion of the first area 80a changes and allows the operator to select reading conditions while recognizing the other copying conditions.
As for the ADF, the number of documents that can be stacked is limited, and documents are automatically fed, assuming a standard thickness. To cope with these limitations, the operator may touch the “Special Document Feed” key. As a result, a picture shown in FIG. 12 appears. When the number of documents to be stacked on the ADF is greater than the preselected number of documents, the operator touches a “Mass Documents” key in the picture of FIG. 12. Then, the ADF automatically feeds the documents without forcing the operator to press the start key every time the operator stacks the documents on the ADF. When the operator touches a “Mixed Sizes” key, the ADF feeds a stack of documents of different sizes.
Assume that the operator desires to copy any one of documents that cannot be stacked on a feed tray, not shown, postcards or similar relatively thick papers, and OHP (Over Head Projector) films. Then, the operator opens the manual feed tray, touches the “Manual Feed” key, and presses the enter key 81, FIG. 2. As a result, a picture shown in FIG. 13 appears. When use is made of OHP films or thick papers of regular size, the operator touches an “OHP” key or a “Thick Paper” key. When the operator intending to use papers of irregular size touches an “Irregular Size” key, a picture, not shown, allowing the operator to input a vertical size and a horizontal size appears. The operator watching such a picture inputs the vertical and horizontal sizes of the papers on the numeral keys, presses the enter key, and then presses an “OK” key. As a result, the basic picture of FIG. 3 again appears except that the “Irregular Size” key is highlighted in placed of the “Auto Paper Selection” key.
Various kinds of enlargement and reduction are available as a magnification changing function. For example, it is possible to automatically enlarge or reduce the size of images in accordance with the size of papers selected. For this purpose, the operator touches the “Paper-Priority Magnification Change” key in the sixth area 80f, FIG. 3, and then selects papers. When the operator touches a “Slightly Small” key, there is set 93% reduction using the center as a reference. When the operator touches the “Magnification Change” key, a picture shown in FIG. 14 and showing “−”, “+”, “Numeral Key Zoom”, “Reduce”, “Enlarge” and “Applied Magnification Change” appears.
Specifically, the picture of FIG. 14 allows the operator to set paper-priority magnification change after setting integrated copying which will be described later. The “Reduce” key or the “Enlarge” key allows the operator to select a regular magnification or fixed magnification (35%, 50%, 61%, 71%, 82%, 87%, 115%, 122%, 141%, 200% and 400%). The “Numeral Key Zoom” allows the operator to reduce or enlarge an image between 32% and 400% on a 1% basis. Alternatively, the operator may touch the “Reduce” key or the “Enlarge” key and then adjust the magnification by using the “−” key or the “+” key. The applied magnification changing function includes “Dimension-Priority Magnification Change”, “Independent Magnification Change %”, and “Independent Magnification Change mm”. The “Dimension-Priority Magnification Change” refers to enlargement or reduction effected by specifying the length of one side of a document and the length of one side of a copy corresponding to each other; a magnification is automatically calculated on the basis of the two lengths. The “Independent Magnification Change %” and “Independent Magnification Change mm” each copies a document in a particular magnification in each of the vertical and horizontal directions.
The copying conditions include “Edit”, “Cover/Slip Sheet” and “Duplex/lntegration/Division” in addition to “Magnification Change”, as follows. When the operator touches an “Edit” key, an “Edit” picture shown in FIG. 15 appears. As shown, the “Edit” picture includes a “Double Copy” key for producing two copies of a single document at the top and bottom or at the right and left of a single paper. A “Repeat” key allows a plurality of copies of a single document to be produced on a single paper in accordance with the paper size and the magnification selected. A “Margin” key allows the operator to define a margin at the left or the right of a paper by touching “←”, “→”, “↓” and “↑”. A “Center Erase” key i s used to erase a shadow appearing at the center of a copy when a book or similar bound document is copied. A “Frame Erase” key is used to erase shadows appearing around a copy derived from a book or similar bound document. With the “Center Erase” or “Frame Erase” key, it is possible to set a desired width for erasure. Particularly, as shown in FIG. 16, the “Frame Erase” key allows the same width or a particular width to be set in each of the vertical and horizontal directions, as desired. A “Centering” key automatically shifts the image of a document to the center of a paper.
The “Cover/Slip Sheet” key allows documents to be copied on cover papers or allows slip sheets to be inserted between the chapters of documents. Specifically, there are available a “Front Cover” key for copying the first document page on a paper assigned to a front cover, a “Both Covers” key for copying the first and last document pages on two cover papers, respectively, a “Chapter Division” key for inserting slip sheets between the chapters of documents, and a “Slip Sheet” key for inserting slip sheets between the pages of documents. FIG. 17 shows a picture to appear when the operator touches the “Cover/Slip Sheet” key. It is to be noted that when “Simplex→Duplex” copy is selected, “Chapter Division” allows designated documents to be copied on the front sides of papers like the first document page without exception.
By suitably combining the setting of the sides of documents and the setting of the sides of copies, it is possible to effect duplex copying, integrated copying, and division copying, as desired. Specifically, when the “Duplex/lntegration/Division” key is pressed, a picture shown in FIG. 18 appears. In a duplex copy mode, simplex documents may be copied on both sides of papers, or duplex documents may be copied on both sides of papers. If desired, a plurality of documents may be copied on a single paper. Specifically, FIG. 19 shows a picture to appear when a mode for copying each two pages of a document on one side of a paper is selected. FIG. 20 shows a specific picture in which a mode for copying each four pages of a document on both sides of a paper is selected. Further, FIG. 21 shows a picture for allowing the operator to select “Right/Left Spread” and “Top/Bottom Spread” for each of documents and copies.
Division copying includes “Spread→Simplex” for copying the right and left pages of a spread document on one side of two papers, and “Duplex→Simplex” for copying both sides of a duplex document on one side of two papers. To select “Spread→Simplex”, the operator touches a “Division/Book” key in the picture of FIG. 18. As a result, a picture shown in FIG. 22 appears. The operator touches an “OK” key in the picture of FIG. 22. To select “Duplex→Simplex”, the operator presses a “Duplex” key of FIG. 18 assigned to documents, a “Simplex” key assigned to copies, and an “OK” key. A plurality of documents may be copied in order of page in the form of a book. This kind of copying includes “Right/Left Page Duplex” for copying a spread book on both sides of a paper, “Front/Rear Page Duplex” for copying a spread document on both sides of a paper in the same configuration as the document, “Mini Book” for copying four simplex documents in order of page, and “Magazine” for copying a plurality of documents in order of page (when folded and stacked). FIG. 22 shows a specific condition in which “Page Duplex Copy Priority” and “Right/Left Page Duplex” are selected. To select “Front/Rear Page Duplex”, the initial setting is changed. If desired, “Right/Left” Page Duplex” and “Front/Rear Page Duplex” may be displayed together.
FIG. 23 shows a picture to appear when the operator intending to store image data read in the apparatus in the form of a file and print them out presses the copy server key 91, FIG. 2. When the operator touches a “Document Read” key appearing in the first area 80a in FIG. 23, a picture shown in FIG. 24 appears. In FIG. 24, the first area 80a and sixth area 80f are identical with the corresponding areas of the basic picture assigned to copying. The operator sets reading conditions in the picture of in the above areas 80a and 80f and then causes the apparatus to read documents. Various functions available for reading documents are identical with the functions described in relation to copying and will not be described specifically in order to avoid redundancy. To print the stored file, the operator calls the picture shown in FIG. 23. Because a stored file is present, a “Print Condition” key in the fifth area 80 is highlighted. When the operator touches the “Print Condition” key, a picture shown in FIG. 25 appears. Then, the operator selects a document and sets desired printing conditions as in the copy mode operation.
In summary, it will be seen that the present invention provides a readable operation unit for an image forming apparatus displaying items representative of various functions relating to image formation while classifying and dividing them on a switchable screen. The operator can therefore easily understand the contents of operation in relation to the other functions despite that the functions are arranged in a hierarchical construction. Further, the operator can grasp the kind of image data and how the image data are processed and output as a single flow.
Various modifications will become possible for those skilled in the art after receiving the teachings of the present disclosure without departing from the scope thereof.

## Claims

1. An operation unit configured to control an image forming apparatus, comprising:
mode selecting means for permitting an operator to select an image data handling mode;
display means for displaying a plurality of links to a plurality of operations permitted in the selected image data handling mode, the display means disposed on a right side of the mode selecting means; and
executing means for executing the operations referenced on the display means, the executing means disposed on a right side of the display means,
wherein as a result of a selection of the link to an operation, the display means simultaneously displays the plurality of links to the plurality of operations and a plurality of links to sub-operations of the selected operation above the plurality of links to the plurality of operations, and
the display means displays pictorial representations of the sub-operations, each pictorial representation being an image illustrating the output position of an image that would be formed on a recording medium as a result of selecting a sub-operation.

2. The operation unit according to claim 1, wherein the display means displays each pictorial representation as an icon, the icon corresponding to the format of the recording medium output from the image forming apparatus.

3. The operation unit according to claim 1, wherein the mode selecting means permits the operator to select a copy mode as the image data handling mode.

4. An image forming apparatus, comprising:
an image forming unit configured to form an image on a recording medium; and
an operating unit configured to control the formation of the image on the recording medium by the image forming unit, the operating unit comprising
a mode selecting unit operable to permit selection of an operating mode of the image forming unit;
a display unit configured to display a plurality of links to a plurality of operations based on the selected operating mode, the display unit configured to simultaneously display a plurality of links to sub-operations along with the plurality of links to the plurality of operations below the plurality of links to sub-operations when a link to an operation is selected and to output data when a link to a sub-operation is selected; and
an executing unit configured to operate the image forming unit based on the data output from the display unit,
wherein the display unit displays pictorial representations of the sub-operations, each pictorial representation being an image illustrating the output position of an image that would be formed on a recording medium as a result of selecting a sub-operation.

5. The image forming apparatus according to claim 4, wherein the display unit comprises a touch screen.

6. The image forming apparatus according to claim 4, wherein the display unit is disposed between the mode selecting unit and the executing unit.

7. The image forming apparatus according to claim 4, wherein the mode selecting unit and the executing unit each comprise at least one key.

8. The image forming apparatus according to claim 4, wherein the executing unit is disposed to the right of the display unit.

9. The image forming apparatus according to claim 4, wherein the display unit is configured to display the sub-operation when the operation is selected on the display unit.

10. The image forming apparatus according to claim 4, wherein the image is formed on the recording medium based on the data.

11. The image forming apparatus according to claim 4, further comprising:
a reading unit configured to read input documents;
a printing unit configured to print output documents on a recording medium based on contents of the input documents read by the reading unit; and
a registry unit configured to register in the image processing apparatus the reading conditions or the outputting condition selected by the display unit or a combination of the reading conditions and the outputting conditions selected by the display unit,
wherein the display unit is further configured to display either reading conditions for the input documents read by the reading unit or to display outputting conditions for outputting the output documents on the recording medium and to enable selection of reading conditions and/or outputting conditions.

12. The image forming apparatus according to claim 11, wherein the reading conditions include a kind of the input documents and an image density condition of the input documents.

13. The image forming apparatus according to claim 11, wherein the outputting conditions include a print condition of the output documents on the recording medium and a processing condition for the recording medium after printing.

14. The image forming apparatus according to claim 11, wherein the display unit is configured to display information registered by the registry unit.

15. The image forming apparatus according to claim 11, wherein the contents of the input documents read by the reading unit using the reading conditions are stored in the image forming apparatus.

16. An operating unit configured to control formation of an image on the recording medium by an image forming unit in an image forming apparatus, the operating unit comprising:
a mode selecting unit operable to permit selection of an operating mode of the image forming unit;
a display unit configured to display a plurality of links to a plurality of operations based on the selected operating mode, the display unit configured to simultaneously display a plurality of links to sub-operations along with the plurality of links to the plurality of operations below the plurality of links to sub-operations when a link to an operation is selected and to output data when a link to a sub-operation is selected; and
an executing unit configured to operate the image forming unit based on the data output from the display unit,
wherein the display unit displays pictorial representations of the sub-operations, each pictorial representation being an image illustrating the output position of an image that would be formed on a recording medium as a result of selecting a sub-operation.

17. The operating unit according to claim 16, wherein the display unit comprises a touch screen.

18. The operating unit according to claim 16, wherein the display unit is disposed between the mode selecting unit and the executing unit.

19. The operating unit according to claim 16, wherein the executing unit is disposed to the right of the display unit.

20. The operating unit according to claim 16, wherein the display unit is configured to display the sub-operation when the operation is selected on the display unit.

21. The operating unit according to claim 16, wherein the image is formed on the recording medium based on the data.

22. A method of operating an image forming apparatus, comprising:
permitting selection of at least one operating mode of the image forming apparatus;
displaying on a display unit a plurality of links to a plurality of operations based on the selected operating mode;
permitting selection on the display unit of a link to an operation;
simultaneously displaying on the display unit the plurality of links to the plurality of operations and a plurality of links to a plurality of sub-operations of the selected operation above the plurality of links to the plurality of operations;
displaying on the display unit a pictorial representation of each sub-operation, the pictorial representation being an image illustrating the output position of an image that would be formed on a recording medium as a result of selecting a sub-operation;
permitting selection on the display unit of a link to the sub-operation; and
forming the image on the recording medium in accordance with the selected sub-operation.

23. The method according to claim 22, wherein permitting selection of the at least one operating mode comprises permitting selection of one of a plurality of operating modes.

24. The method according to claim 22, wherein displaying the at least one operation comprises displaying a plurality of operations.

25. The method according to claim 22, wherein displaying the at least one sub-operation comprises displaying a plurality of sub-operations.

26. The method according to claim 22, wherein the display unit comprises a touch screen.

27. The method according to claim 22, further comprising:
outputting data to an image forming unit based on the selected sub-operation.

28. An operating unit configured to control formation of an image on the recording medium by an image forming unit in an image forming apparatus, the operating unit comprising:
means for permitting selection of an operating mode of the image forming unit;
means for simultaneously displaying a plurality of operations based on a selection of the operating mode and a plurality of sub-operations above the plurality of operations based on a selection of an operation; and
means for executing formation of the image on the recording medium based on a selection of the sub-operation,
wherein the means for simultaneously displaying displays a pictorial representation of each sub-operation, each pictorial representation being an image illustrating the output position of an image that would be formed on a recording medium as a result of selecting a respective one of the plurality of sub-operations.

29. The operating unit according to claim 28, wherein the means for displaying comprises a touch screen.

30. The operating unit according to claim 28, wherein the means for displaying is disposed between the means for permitting and the means for executing.

31. The operating unit according to claim 30, wherein the means for executing is disposed to the right of the means for displaying.

32. The operating unit according to claim 28, wherein the means for displaying is configured to display the sub-operation based on the selection of the operation on the display unit.