1461130675-14674be2-e09c-4c28-93d4-f731c8987651

1. An image forming apparatus comprising:
a storage section configured to store data;
a printing section configured to perform duplex printing of the data stored in the storage section, the duplex printing including printing N sheets on first sides thereof and subsequently printing M sheets on second sides thereof, wherein M is equal to or smaller than N;
a detection section configured to detect a request for storing data in the storage section; and
a changing section configured to change the value of N into a smaller value during the duplex printing, in response to the detection of the request for storing data based on a function which uses the storage section concurrently with an operation of the duplex printing.
2. The image forming apparatus according to claim 1, further comprising:
a reading section configured to read an original document,
wherein the request for storing data is based on an operation of storing data read by the reading section in the storage section.
3. The image forming apparatus according to claim 1,
wherein the detection section detects, as the request, at least a part of operation for executing the function which uses the storage section concurrently with the operation of the duplex printing being performed.
4. The image forming apparatus according to claim 1,
wherein the changing section change the value of N into smaller value as an amount of storing data in the request is larger.
5. The image forming apparatus according to claim 1,
wherein the changing section returns the value of N to an original value when the function related to the request finishes using the storage section.
6. The image forming apparatus according to claim 1,
wherein if an available amount of the storage section is larger than a threshold value, the changing section does not change the value of N even when the request for storing data is detected.
7. The image forming apparatus according to claim 6,
wherein the threshold value is a fixed value stored in advance.
8. The image forming apparatus according to claim 6,
wherein the threshold value is a value determined based on the function related to the request.
9. An image forming apparatus comprising:
a reading section configured to read an original document;
a storage section configured to store at least one of data read by the reading section and data received from an external device;
a printing section configured to perform duplex printing of the data stored in the storage section, the duplex printing including printing N sheets on first sides thereof and subsequently printing M sheets on second sides thereof, wherein M is equal to or smaller than N;
a changing section configured to change the value of N into a smaller value during the duplex printing, in response to that at least a part of operation for executing reading operation by the reading section is performed; and
a control section configured to control the printing section to perform the duplex printing in accordance with the value of N.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. An optical microscope system, comprising:
an object lens which collects light from a sample;
a capture unit which obtains an image of the sample by capturing light from the object lens via an imaging lens;
a removable optical element provided in an infinity correction optical system between the object lens and the imaging lens;
a detection unit which detects first location information indicating a location of a predetermined point in the image captured by the capture unit through the optical element, and second location information indicating a location of a point corresponding to the predetermined point in an image captured without the optical element;
a calculation unit which calculates a relative amount of displacement between the location indicated by the first location information and the location indicated by the second location information detected by the detection unit; and
a movement control unit which moves the capture unit at least in a direction substantially perpendicular to an optical path of light input to the capture unit, so as to match the location indicated by the first location information with the location indicated by the second location information based on the amount of the displacement calculated by the calculation unit.
2. The optical microscope system according to claim 1, further comprising:
an additional optical element; and
a switch unit which switches the additional optical element into a position of the removable optical element;
wherein the second location information, which is detected in the image captured without the removable optical element, indicates a location of a point corresponding to the predetermined point in the image captured through the additional optical element.
3. The optical microscope system according to claim 2, wherein the movement control unit moves the capture unit in an optical path direction of the light input to the capture unit.
4. The optical microscope system according to claim 2, wherein the movement control unit rotates the capture unit in a direction perpendicular to an optical path of the light input to the capture unit.
5. The optical microscope system according to claim 2, further comprising a magnification change unit which changes a magnification of the image obtained by the capture unit.
6. The optical microscope system according to claim 1, further comprising a magnification change unit which changes a magnification of the image obtained by the capture unit.
7. The optical microscope system according to claim 1, wherein the optical element comprises a parallel planar optical element.
8. The optical microscope system according to claim 1, wherein the capture unit comprises a stage, and the movement control unit moves the stage.
9. The optical microscope system according to claim 8, wherein the movement control unit moves the capture unit in an optical path direction of the light input to the capture unit.
10. The optical microscope system according to claim 8, wherein the movement control unit rotates the capture unit in a direction perpendicular to an optical path of the light input to the capture unit.
11. An optical axis correcting method for correcting an optical axis of an optical microscope system including an object lens which collects light from a sample, a capture unit which obtains an image of the sample by capturing light from the object lens via an imaging lens, and a removable optical element provided in an infinity correction optical system between the object lens and the imaging lens, said method comprising:
detecting first location information indicating a location of a predetermined point in the image captured by the capture unit through the optical element, and second location information indicating a location of a point corresponding to the predetermined point in an image captured without the optical element;
calculating a relative amount of displacement between the location indicated by the detected first location information and the location indicated by the detected second location information; and
moving the capture unit at least in a direction substantially perpendicular to an optical oath of light input to the capture unit, so as to match the location indicated by the first location information with the location indicated by the second location information based on the calculated amount of the displacement.
12. The method according to claim 11, wherein the optical microscope system further comprises an additional optical element, and the method further comprises:
switching the additional optical element into a position of the removable optical element;
wherein the second location information, which is detected in the image captured without the removable optical element, indicates a location of a point corresponding to the predetermined point in the an image captured through the additional optical element.
13. The method according to claim 12, wherein when the capture unit is moved, the capture unit is moved in an optical path direction of the light input to the capture unit.
14. The method according to claim 12, wherein when the capture unit is moved, the capture unit is rotated in a direction perpendicular to an optical path of the light input to the capture unit.
15. The method according to claim 12, further comprising changing a magnification of the image obtained by the capture unit.
16. The method according to claim 11, further comprising changing a magnification of the image obtained by the capture unit.
17. The method according to claim 11, wherein the optical element comprises a parallel planar optical element.
18. The method according to claim 11, wherein the capture unit comprises a stage, and the capture unit is moved by moving the stage.
19. The method according to claim 18, wherein when the capture unit is moved, the capture unit is moved in an optical path direction of the light input to the capture unit.
20. The method according to claim 18, wherein when the capture unit is moved, the capture unit is rotated in a direction perpendicular to an optical path of the light input to the capture unit.
21. A computer readable storage medium storing an optical axis correction program used to direct a computer to perform a process of correcting an optical axis of an optical microscope system including an object lens which collects light from a sample, a capture unit which obtains an image of the sample by capturing light from the object lens via an imaging lens, and a removable optical element provided in an infinity correction optical system between the object lens and the imaging lens, said program being executable by the computer to cause the computer to perform processes comprising:
a detecting process of detecting first location information indicating a location of a predetermined point in the image captured by the capture unit through the optical element, and second location information indicating a location of a point corresponding to the predetermined point in an image captured without the optical element;
a calculating process of calculating a relative amount of displacement between the location indicated by the first location information and the location indicated by the second location information detected in the detecting process; and
a movement control process of moving the capture unit at least in a direction substantially perpendicular to an optical path of light input to the capture unit, so as to match the location indicated by the first location information with the location indicated by the second location information based on the amount of the displacement calculated in the calculating process.
22. The storage medium according to claim 21, wherein the optical microscope system further comprises an additional optical element, and the processes performed by the computer further comprise:
a switching process of switching the additional optical element into a position of the removable optical element;
wherein the second location information, which is detected in the image captured without the removable optical element, indicates a location of a point corresponding to the predetermined point in an image captured through the additional optical element.
23. The storage medium according to claim 22, wherein the movement control process moves the capture unit in an optical path direction of the light input to the capture unit.
24. The storage medium according to claim 22, wherein the movement control process rotates the capture unit in a direction perpendicular to an optical path of the light input to the capture unit.
25. The storage medium according to claim 22, wherein the processes performed by the computer further comprise a magnification change process of changing a magnification of the image obtained by the capture unit.
26. The storage medium according to claim 21, wherein the processes performed by the computer further comprise a magnification change process of changing a magnification of the image obtained by the capture unit.
27. The storage medium according to claim 21, wherein the optical element comprises a parallel planar optical element.
28. The storage medium according to claim 21, wherein the capture unit comprises a stage, and the movement control process moves the stage.
29. The storage medium according to claim 28, wherein the movement control process moves the capture unit in an optical path direction of the light input to the capture unit.
30. The storage medium according to claim 28, wherein the movement control process rotates the capture unit in a direction perpendicular to an optical path of the light input to the capture unit.
31. A computer data signal embodied in a carrier wave for correcting an optical axis of an optical microscope system including an object lens which collects light from a sample, a capture unit which obtains an image of the sample by capturing light from the object lens via an imaging lens, and a removable optical element provided in a infinity correction optical system between the object lens and the imaging lens, said data signal being used to direct a computer to perform processes comprising:
a detecting process of detecting first location information indicating a location of a predetermined point in the image captured by the capture unit through the optical element, and second location information indicating a location of a point corresponding to the predetermined point in an image captured without the optical element;
a calculating process of calculating a relative amount of displacement between the location indicated by the first location information and the location indicated by the second location information detected in the detecting process; and
a movement control process of moving the capture unit at least in a direction substantially perpendicular to an optical oath of light input to the capture unit, so as to match the location indicated by the first location information with the location indicated by the second location information based on the amount of the displacement calculated in the calculating process.
32. The signal according to claim 31, wherein the optical microscope system comprises an additional optical element, and wherein the processes performed by the computer further comprise:
a switching process of switching the additional optical element into a position of the removable optical element;
wherein the second location information which is detected in the image captured without the removable optical element, indicates a location of a point corresponding to the predetermined point in an image captured through the additional optical element.
33. The signal according to claim 32, wherein the movement control process moves the capture unit in an optical path direction of the light input to the capture unit.
34. The signal according to claim 32, wherein the movement control process rotates the capture unit in a direction perpendicular to an optical path of the light input to the capture unit.
35. The signal according to claim 32, wherein the processes performed by the computer further comprise a magnification change process of changing a magnification of an image obtained by the capture unit.
36. The signal according to claim 31, wherein the processes performed by the computer further comprise a magnification change process of changing a magnification of an image obtained by the capture unit.
37. The signal according to claim 31, wherein the optical element comprises a parallel planar optical element.
38. The signal according to claim 31, wherein the capture unit comprises a stage, and the movement control process moves the stage.
39. The signal according to claim 38, wherein the movement control process moves the capture unit in an optical path direction of the light input to the capture unit.
40. The signal according to claim 38, wherein the movement control process rotates the capture unit in a direction perpendicular to an optical path of the light input to the capture unit.
41. An optical microscope system, comprising:
an object lens which collects light from a sample;
capture means for obtaining an image of the sample by capturing light from the object lens via an imagine lens;
a removable optical element provided in an infinity correction optical system between the object lens and the imaging lens;
detection means for detecting first location information indicating a location of a predetermined point in the image captured by the capture means through the optical element, and second location information indicating a location of a point corresponding to the predetermined point in an image captured without the optical element;
calculating means for calculating a relative amount: of displacement between the location indicated by the first location information and the location indicated by the second location information detected by the detection means; and
movement control means for moving the capture means at least in a direction substantially perpendicular to an optical path of light input to the capture means, so as to match the location indicated by the first location information with the location indicated by the second location information based on the amount of the displacement calculated by the calculation means.
42. The optical microscope system according to claim 41, further comprising:
an additional optical element; and
switch means for switching the additional optical element into a position of the removable optical element;
wherein the second location information, which is detected in an image captured without the removable optical element, indicates a location of a point corresponding to the predetermined point in the image captured through the second optical element.