Colour image reading apparatus or colour image forming apparatus

Claim 2

A color copying machine comprising: reading means for reading a color original; correction means for performing a color correction processing of a color image signal read by said reading means; image forming means for forming a color image based on a correction output from said correction means; and setting means for setting a correction characteristic of said color correction processing based on said color image signal read by said reading means.

Claim 3

A color copying machine according to Claim 1, wherein said setting means includes memory means for storing a predetermined value and said reading means reads a predetermined standard color original, and wherein said setting means sets said correction characteristic based on said read-out value and a stored value in said memory means.

Claim 4

A color copying machine according to Claim 2, wherein said setting means sets said correction characteristic based on a plurality of read-out values and a plurality of stored values.

Claim 5

A color copying machine according to Claim 1, wherein said correction means has a color correction coefficient and said setting means sets said color correction coefficient.

Claim 6

A color image reading apparatus comprising: reading means for reading a standard color original and an ordinary original; color correction means for receiving an output from said reading means; and control means for setting a color correction characteristic of said color correction means such that an output from said color correction means when reading said ordinary original becomes a predetermined value associated with said standard color original.

Claim 7

A color image reading apparatus comprising: reading means for reading a standard color original and an ordinary original; color correction means for receiving an output from said reading means; and control means for setting a color correction characteristic of said color correction means such that an output from said color correction means when reading said ordinary original becomes a predetermined value associated with said standard color original.

Claim 8

A color image reading apparatus according to Claim 5 further comprising memory means for storing said predetermined value.

Claim 9

A color image reading apparatus according to Claim 5, wherein said control means sets said color correction characteristic such that a plurality of read-out outputs of said standard color original having a plurality of color patterns have a plurality of corresponding said predetermined values.

Claim 10

A color image reading apparatus according to Claim 5, wherein said color correction means has a plurality of color correction coefficients, and said control means sets said plurality of color correction coefficients.

Claim 11

A color image forming apparatus comprising: reading means for reading a standard color original and an ordinary original; color correction means for receiving an output from said reading means; control means for setting a color correction characteristic of said color correction means such that an output from said color correction means when reading said ordinary original becomes a predetermined value associated with said standard color original; and means for receiving an output from said color correction means and forming a color image.

Claim 12

A color image forming apparatus comprising: reading means for reading a standard color original and an ordinary original; color correction means for receiving an output from said reading means; control means for setting a color correction characteristic of said color correction means such that an output from said color correction means when reading said ordinary original becomes a predetermined value associated with said standard color original; and means for receiving an output from said color correction means and forming a color image.

Claim 13

A color image forming apparatus according to Claim 9 further comprising memory means for storing siad predetermined value.

Claim 14

A color image forming apparatus according to Claim 9, wherein said control means sets said color correction characteristic such that a plurality of read-out outputs of said standard color original having a plurality of color patterns have a plurality of corresponding said predetermined values.

Claim 15

A color image forming apparatus according to Claim 9, wherein said color correction means has a plurality of color correction coefficients, and said control means sets said plurality of color correction coefficients.

Claim 16

A color image forming apparatus according to Claim 9, wherein said color image forming means is a color printer of an electronic photography type.

Claim 17

A color image reproducing apparatus comprising: reading means for reading a color original; color correction means for correcting a color signal obtained by said reading means; color image forming means for recording a color record signal obtained by said color correction means and forming a color image of said color original; a pattern generator for generating a predetermined color pattern; means for supplying an output from said pattern generator to said color image forming means; and setting means for setting a correction characteristic of said color correction means such that a color characteristic of a color pattern formed by said color image forming means and read by said reading means generally coincides with a color characteristic of a color pattern generated by said pattern generator.

Claim 18

A color image reproducing apparatus comprising: reading means for reading a color original; color correction means for correcting a color signal obtained by said reading means; color image forming means for recording a color record signal obtained by said color correction means and forming a color image of said color original; a pattern generator for generating a predetermined color pattern; means for supplying an output from said pattern generator to said color image forming means; and setting means for setting a correction characteristic of said color correction means such that a color characteristic of a color pattern formed by said color image forming means and read by said reading means generally coincides with a color characteristic of a color pattern generated by said pattern generator.

Claim 19

A color image reproducing apparatus according to Claim 14, wherein said pattern generator generates a color pattern having a plurality of colors.

Claim 22

A method according to Claim 16, wherein after said setting step, an ordinary color original is read by said color image reading unit and corrected by said color correction unit to form a reproduced image by said color image forming unit.

Claim 23

A method according to Claim 16, wherein said color pattern has a plurality of colors.

Claim 24

A color image forming apparatus comprising: output means for forming a color image on a recording medium using a plurality of different coloring agents; means for generating a pattern signal having a predetermined color; memory means for storing a value corresponding to a pattern generated by said pattern generating means; photoelectric conversion means for performing a photoelectric conversion of a pattern corresponding to a signal from said generating means into a plurality of colors, said pattern having been formed on said recording medium by using said output means; and display means for judging an output characteristic of said output means based on a signal value corresponding to said pattern on said recording medium and obtained by said photoelectric conversion means and said value in said memory means, and displaying said judgement result.

Claim 25

A color image forming apparatus comprising: output means for forming a color image on a recording medium using a plurality of different coloring agents; means for generating a pattern signal having a predetermined color; memory means for storing a value corresponding to a pattern generated by said pattern generating means; photoelectric conversion means for performing a photoelectric conversion of a pattern corresponding to a signal from said generating means into a plurality of colors, said pattern having been formed on said recording medium by using said output means; and display means for judging an output characteristic of said output means based on a signal value corresponding to said pattern on said recording medium and obtained by said photoelectric conversion means and said value in said memory means, and displaying said judgement result.

Claim 26

A color image forming apparatus according to Claim 19, wherein said display means displays a judgement result independently for each color.

Claim 27

A color image forming apparatus according to Claim 19, wherein said photoelectric conversion means comprises reading means for reading an ordinary original.

Claim 28

A color image forming apparatus according to Claim 19, wherein said pattern comprises a plurality of color patterns.

Claim 29

A colour correction facility for a colour copying apparatus in which a colour image signal produced upon reading a predetermined standard colour original is compared with a reference signal and an image signal correction means is adjusted in accordance with the result of the comparison.

Claim 30

A colour correction facility for a colour copying apparatus in which a colour image signal produced upon reading a predetermined standard colour original is compared with a reference signal and an image signal correction means is adjusted in accordance with the result of the comparison.