Image processing apparatus

• US 6,525,834 B2
• Filed: 04/11/1997
• Issued: 02/25/2003
• Est. Priority Date: 01/25/1990
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Funada, Masahiro, Kurita, Mitsuru
• Primary Examiner(s): Mancuso, Joseph
• Assistant Examiner(s): Bali, Vikkram
• Application Number:
  US08/843,069
• Publication Number:
  US 20020051219A1
• Time in Patent Office: 2,146 Days
• Field of Search: 355/55, 358/496, 358/300, 358/296, 358/448, 358/488, 358/451, 358/407, 358/280, 358/408, 358/530, 358/1.18, 358/1.2, 346/134, 271/9.03, 382/297, 382/173, 399/82, 399/86, 399/391, 399/85, 399/23, 345/439
• US Class Current: 358/1.18
• CPC Class Codes: H04N 1/00681 Detecting the presence, position or size of a sheet or correcting its position before scanning H04N1/047 takes precedence; mode signalling H04N1/333; skew detection or correction in image signals H04N1/3878
• CPC Class Codes: H04N 1/0071 Width
• CPC Class Codes: H04N 1/00713 Length
• CPC Class Codes: H04N 1/00779 Adjusting settings, e.g. mode, feeding rate or type of paper

Abstract

An image processing apparatus includes an input unit for inputting an image signal representing an original image, a processing unit for performing image processing of the image signal input from the input unit, and a recording unit for recording an image on a recording medium on the basis of the image signal subjected to the image processing by the processing unit. The processing unit performs rotation processing of the image signal in accordance with the shapes of the original image and the recording medium.

Claims

1. An image forming apparatus comprising:

input means for inputting an image signal;

recording means for recording an image on a recording medium obtained from one of a plurality of sheet feeding units on the basis of the image signal input by said input means;

rotating means for performing rotation processing on the image signal input by said input means, and supplying the processed image signal to said recording means;

control means for controlling an operation of said rotating means; and

setting means for setting one of either a first mode or a second mode,

wherein, when the first mode is set, in a case where none of the plurality of sheet feeding units contains the recording medium selected to record the image on the basis of the image signal so that the image may be recorded thereon without rotating the image, said control means causes said rotating means to perform rotation on the image signal and causes said recording means to record the image on the recording medium which has the same size, but which is set in a different orientation in another sheet feeding unit than the selected recording medium,

wherein, when the second mode is set, in a case where none of the plurality of sheet feeding units contains the recording medium selected to record the image on the basis of the image signal so that the image may be recorded thereon without rotating the image, said control means prohibits both said rotation means to perform rotation processing on the image signal and said recording means to record the image, regardless of whether or not the recording medium is present, and

wherein, in a case where at least one of the plurality of sheet feeding units contains the recording medium selected to record the image on the basis of the image signal so that the image may be recorded thereon without rotating the image, said recording means records the image on the recording medium regardless of whether the first mode or the second mode is set.

2. An apparatus according to claim 1, wherein at least two of the plurality of sheet feeding units contain the same size recording medium in different orientations of each other,

wherein said recording means selects one of the plurality of sheet feeding units and records the image on the recording medium in accordance with a size and an orientation of the selected sheet feeding unit.

3. An apparatus according to claim 1, wherein in a case where a selected sheet feeding unit, capable of containing recording medium on which the image may be recorded without rotating the image, is empty, said control means causes said rotating means to perform rotating processing, and said recording means records the image on the recording medium obtained from another sheet feeding unit containing recording medium having the same size as, but set in a different orientation than, that stored in the selected sheet feeding unit.

4. An apparatus according to claim 1, further comprising a reader for reading an image on a document and generating the image signal based on the image, wherein said input means inputs the image signal from said reader.

5. An apparatus according to claim 4, wherein said reader reads the image on the documents which are fed successively from an auto document feeder.

6. An apparatus according to claim 1, wherein said rotating means performs rotation of the image by controlling memory access to a memory in which the image signal is stored.

7. An apparatus according to claim 6, wherein said rotating means controls write access in a case of storing the image signal into the memory.

8. An apparatus according to claim 6, wherein said rotating means controls read access in a case of reading out the image signal stored in the memory.

9. An apparatus according to claim 6, wherein the memory stores the image signal together with control information which indicates a process in the case of recording the image based on the image signal by said recording means, and said rotating means controls memory access relating to the image signal and to the control information.

10. An apparatus according to claim 9, wherein the control information indicates a recording color in the case of recording the image by said recording means.

11. An image processing method comprising:

an input step of inputting an image signal;

a rotating step of performing rotation processing on the image signal input in said input step;

a recording step of recording an image on a recording medium obtained from one of a plurality of sheet feeding units on the basis of the image signal;

controlling an operation of said rotating step; and

setting one of either a first mode or a second mode,

wherein when the first mode is set, in a case where none of the plurality of sheet feeding units contains the recording medium selected to record the image on the basis of the image signal so that the image may be recorded thereon without rotating the image, said control step causes said rotating step to perform rotation on the image signal and causes said recording step to record the image on the recording medium which has the same size as, but which is set in the different orientation in another sheet feeding unit than the selected recording medium,

wherein, when the second mode is set, in a case where none of the plurality of sheet feeding units contains the recording medium selected to record the image on the basis of the image signal so that the image may be recorded thereon without rotating the image, said control step prohibits both said rotation step to perform rotation processing on the image signal and said recording step to record the image, regardless of whether or not the recording medium is present, and

wherein, in a case where at least one of the plurality of sheet feeding units contains the recording medium selected to record the image on the basis of the image signal so that the image may be recorded thereon without rotating the image, the image is recorded on the recording medium in said recording step regardless of whether the first mode or the second mode is set.

12. A method according to claim 11, wherein at least two of the plurality of sheet feeding units contain the same size recording medium in different orientations of each other,

wherein said recording step selects one of the plurality of sheet feeding units and records the image on the recording medium in accordance with a size and an orientation of the selected sheet feeding unit.

13. A method according to claim 11, wherein in a case where a selected sheet feeding unit, capable of containing a recording medium on which the image may be recorded without rotating the image, is empty, said control step causes said rotating step to perform rotating processing, and said recording step records the image on the recording medium obtained from another sheet feeding unit containing a recording medium having the same size as, but set in a different orientation than that stored in the selected sheet feeding unit.

14. A method according to claim 11, further comprising a reading step for reading an image on a document and generating the image signal based on the image, wherein said input step inputs the image signal generated in the reading step.

15. A method according to claim 14, wherein said reading step further comprises reading images on documents which are fed successively from an auto document feeder.

16. A method according to claim 11, wherein said rotating step performs rotation of the image by controlling memory access to the memory in which the image signal should be stored.

17. A method according to claim 16, wherein said rotating step controls write access in a case of storing the image signal into the memory.

18. A method according to claim 16, wherein said rotating step controls read access in a case of reading out the image signal stored in the memory.

19. A method according to claim 16, wherein the memory stores the image signal together with control information which indicates a process in the case of recording the image based on the image signal by said recording step, and said rotating step controls memory access relating to the image signal and to the control information.

20. A method according to claim 19, wherein the control information indicates a recording color in a case of recording the image in said recording step.