US5239341A — Image processing apparatus having variable magnif…

Claim 1

Independent Claim 104 words

An image processing apparatus comprising: magnification input means for inputting a magnification for image formation; means for forming an image on a paper sheet; means for forming a margin on the paper sheet; and control means for controlling said image forming means so as to form the margin of a predetermined size even when the input magnification changes, said control means having first timer means for effecting a timing operation based on a predetermined time irrespectively of the input magnification and second timer means for effecting a timing operation based on the input magnification with a predetermined time relation to said first timer means.

Claim 2

Dependent Claim 104 words

An image processing apparatus comprising: magnification input means for inputting a magnification for image formation; means for forming an image on a paper sheet; means for forming a margin on the paper sheet; and control means for controlling said image forming means so as to form the margin of a predetermined size even when the input magnification changes, said control means having first timer means for effecting a timing operation based on a predetermined time irrespectively of the input magnification and second timer means for effecting a timing operation based on the input magnification with a predetermined time relation to said first timer means.

Claim 3

Dependent Claim 33 words

An apparatus according to claim 1, wherein said first timer means terminates the timing operation thereof at substantially the same time as said second timer means when the magnification is an equal size.

Claim 4

Dependent Claim 42 words

An apparatus according to claim 1, wherein said control means adjusts a set time of said second timer in accordance with the input magnification on the basis of a set time of said second timer for a magnification of an equal size.

Claim 5

Dependent Claim 27 words

An apparatus according to claim 1, wherein said control means controls said image forming means is response to termination of a timing operation of said second timer.

Claim 6

Dependent Claim 157 words

An image processing apparatus comprising: magnification input means for inputting a magnification for image formation; numeral input means for inputting a numeral associated with image formation; common display means for displaying the numeral associated with image formation and the inputted magnification; timer means for counting a predetermined time period; and control means for starting said timer means in response to the entry of a magnification by said magnification input means; for charging a display on said display means from the numeral inputted by said numeral input means to the magnification inputted by said magnification input means while said timer means is counting; and, for displaying again the numeral in place of said magnification when said timer period is over; wherein when it is detected during counting of said timer means that a modified magnification is inputted through said magnification input means, said control means resets said timer means, starts said timer means and displays the modified magnification.

Claim 7

Dependent Claim 157 words

An image processing apparatus comprising: magnification input means for inputting a magnification for image formation; numeral input means for inputting a numeral associated with image formation; common display means for displaying the numeral associated with image formation and the inputted magnification; timer means for counting a predetermined time period; and control means for starting said timer means in response to the entry of a magnification by said magnification input means; for charging a display on said display means from the numeral inputted by said numeral input means to the magnification inputted by said magnification input means while said timer means is counting; and, for displaying again the numeral in place of said magnification when said timer period is over; wherein when it is detected during counting of said timer means that a modified magnification is inputted through said magnification input means, said control means resets said timer means, starts said timer means and displays the modified magnification.

Claim 8

Dependent Claim 25 words

An apparatus according to claim 5, further comprising output means for outputting an analog value corresponding to the magnification inputted by said magnification input means.

Claim 9

Dependent Claim 14 words

An apparatus according to claim 6, wherein said output means comprises a variable resistor.

Claim 10

Dependent Claim 25 words

An apparatus according to claim 5, further comprising instruction means for displaying a magnification without modification of the magnification inputted through said magnification input means.

Claim 11

Dependent Claim 23 words

An apparatus according to claim 8, wherein said control means controls said timer means in response to an input from said instruction means.

Claim 12

Dependent Claim 98 words

A magnification setting apparatus, comprising: a manually movable member including means for outputting an analog signal value which is continuously variable in accordance with a position of said movable member; analog/digital converting means for converting an analog value corresponding to a position of said movable member into a digital value; first setting means for directly setting a magnification for image formation corresponding to a position of said movable member in accordance with the digital value converted by said converting means; and second setting means for setting a predetermined specified magnification irrespective of a position of said movable member.

Claim 13

Dependent Claim 98 words

A magnification setting apparatus, comprising: a manually movable member including means for outputting an analog signal value which is continuously variable in accordance with a position of said movable member; analog/digital converting means for converting an analog value corresponding to a position of said movable member into a digital value; first setting means for directly setting a magnification for image formation corresponding to a position of said movable member in accordance with the digital value converted by said converting means; and second setting means for setting a predetermined specified magnification irrespective of a position of said movable member.

Claim 14

Dependent Claim 32 words

An apparatus according to claim 10, further comprising a zoom lens for image formation and control means for controlling an actuation of the zoom lens in accordance with a determined magnification factor.

Claim 15

Dependent Claim 14 words

An apparatus according to claim 10, wherein said movable member includes a variable resistor.

Claim 16

Dependent Claim 20 words

An apparatus according to claim 10, wherein said second setting means comprises in put means for selecting said specified magnification.

Claim 17

Dependent Claim 22 words

An apparatus according to claim 10, wherein said second setting means sets said specified magnification in response to power-on of said apparatus.

Claim 18

Dependent Claim 30 words

An apparatus according to claim 10, further comprising means for selecting one of the magnification setting by said first setting means and the magnification setting by said second setting means.

Claim 19

Dependent Claim 131 words

An image processing apparatus, comprising: image forming means; magnification input means for inputting a magnification, said input means including a manually movable member, said input means outputting a magnification signal corresponding to a position of said movable member; memory means for storing the magnification inputted by said input means; control means for continuously retained a magnification stored at a start of image formation, with the magnification stored by said control means being retained even beyond completion of image formation and even when a position of said movable member changes before completion of image formation; means for selecting said retained magnification or a magnification corresponding to a position of said movable member changed before completion of image formation, without changing a position of said movable member after completion of the image formation.

Claim 20

Dependent Claim 131 words

An image processing apparatus, comprising: image forming means; magnification input means for inputting a magnification, said input means including a manually movable member, said input means outputting a magnification signal corresponding to a position of said movable member; memory means for storing the magnification inputted by said input means; control means for continuously retained a magnification stored at a start of image formation, with the magnification stored by said control means being retained even beyond completion of image formation and even when a position of said movable member changes before completion of image formation; means for selecting said retained magnification or a magnification corresponding to a position of said movable member changed before completion of image formation, without changing a position of said movable member after completion of the image formation.

Claim 21

Dependent Claim 14 words

An apparatus according to claim 16, wherein said input means comprises a variable resistor.

Claim 22

Dependent Claim 29 words

An apparatus according to claim 16, wherein said selecting means selects the retained magnification when an instruction for starting image formation is conducted after completion of the image formation.

Claim 23

Dependent Claim 85 words

An apparatus according to claim 16, wherein said control means includes means for comparing the magnification at a start of the image formation with the magnification corresponding to the position of said movable member at the end of the image formation, and said apparatus further comprises means for issuing a warning when the magnification at a start of the image formation and the magnification corresponding to the position of said movable member at the end of the image formation are not consistent with each other.

Claim 24

Dependent Claim 113 words

An image forming apparatus comprising: image forming means; a source for illuminating an original; density detecting means for detecting a density of the original image on the basis of a reflected light from the illuminated original; failure detection means for detecting failure of said density detecting means or said illuminating means in accordance with an output of said density detecting means; and control means for stopping an operation of said image forming means when said failure detecting means detects a failure, and for controlling a density of an image formed by said image forming means in accordance with an output of said density detecting means when said failure detecting means detects no failure.

Claim 25

Dependent Claim 113 words

An image forming apparatus comprising: image forming means; a source for illuminating an original; density detecting means for detecting a density of the original image on the basis of a reflected light from the illuminated original; failure detection means for detecting failure of said density detecting means or said illuminating means in accordance with an output of said density detecting means; and control means for stopping an operation of said image forming means when said failure detecting means detects a failure, and for controlling a density of an image formed by said image forming means in accordance with an output of said density detecting means when said failure detecting means detects no failure.

Claim 26

Dependent Claim 21 words

An apparatus according to claim 20, wherein said failure detecting means performs an operation thereof when an image forming operation starts.

Claim 27

Dependent Claim 52 words

An apparatus according to claim 21, further comprising means for detecting a leading edge of an image, wherein said failure detecting means determines a failure when said leading edge detecting means detects a leading edge of an image and said density detecting means does not generate a signal representing a low density.

Claim 28

Dependent Claim 22 words

An apparatus according to claim 20, wherein said failure detecting means performs an operation thereof during a waiting period for image formation.

Claim 29

Dependent Claim 28 words

An apparatus according to claim 23, wherein said failure detecting means determines a failure when said density detecting means does not generate a signal representing a high density.

Claim 30

Dependent Claim 171 words

An image forming apparatus, comprising: means for inputting a stepless magnification for image formation; scanning means for scanning an original at a speed based on the magnification input through said input means; image forming means for forming onto a record medium an image of an original scanned by said scanning means; transferring means for transferring to a sheet an image formed on said record medium; a density member for forming an image of predetermined density onto a leading edge of the recording medium, wherein said density member sets a predetermined density level and is scanned by said scanning means instead of a leading edge of an original; detecting means for detecting a position corresponding to a leading edge of the original while the original is scanned; and forming means for forming a predetermined volume of a margin onto the record medium irrespective of a magnification input through said input means, by executing a transfer process at a timing corresponding to the magnification after the position is detected by said detecting means.

Claim 31

Dependent Claim 171 words

An image forming apparatus, comprising: means for inputting a stepless magnification for image formation; scanning means for scanning an original at a speed based on the magnification input through said input means; image forming means for forming onto a record medium an image of an original scanned by said scanning means; transferring means for transferring to a sheet an image formed on said record medium; a density member for forming an image of predetermined density onto a leading edge of the recording medium, wherein said density member sets a predetermined density level and is scanned by said scanning means instead of a leading edge of an original; detecting means for detecting a position corresponding to a leading edge of the original while the original is scanned; and forming means for forming a predetermined volume of a margin onto the record medium irrespective of a magnification input through said input means, by executing a transfer process at a timing corresponding to the magnification after the position is detected by said detecting means.

Claim 32

Dependent Claim 56 words

An apparatus according to claim 25, further comprising means for counting the time elapsed after detecting said position by said detecting means, wherein said margin forming means controls a timing of the transfer by said transfer means by changing a count value of said counting means in accordance with a magnification input through said input means.

Claim 33

Dependent Claim 38 words

An apparatus according to claim 26, further comprising means for feeding said sheet toward said transfer means, wherein said margin forming means controls a timing of the feed by said feeding means in accordance with said count value.

Claim 34

Dependent Claim 31 words

An apparatus according to claim 26, wherein said count means counts the sum of a fixed count value independent of a magnification and a variable count value based on a magnification.

Claim 35

Dependent Claim 34 words

An apparatus according to claim 25 further comprising a standard density member having a white level, wherein said margin forming means forms a margin by scanning said standard density member by said scanning means.

Claim 36

Dependent Claim 15 words

An apparatus according to claim 25, wherein said density member has a white density level.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1996-08-23	1997-02-22	1997-08-24	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2000-08-23	2001-02-22	2001-08-24	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2004-08-23	2005-02-22	2005-08-24	$7700.00	Window Closed / Lapsed

Image processing apparatus having variable magnification control

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