1. An azo pigment selected from the group consisting of an azo pigment represented by the following formula (1), which has characteristic peaks at Bragg angles (2\u03b8\xb10.2\xb0) of 7.6\xb0 and 25.6\xb0 in X-ray diffraction with characteristic Cu K\u03b1 line, or a tautomer thereof,
an azo pigment represented by the following formula (1), which has characteristic peaks at Bragg angles (2\u03b8\xb10.2\xb0) of 7.0\xb0, 26.4\xb0 and 27.3\xb0 in X-ray diffraction with characteristic Cu K\u03b1 line, or a tautomer thereof, and
an azo pigment represented by the following formula (1), which has characteristic peaks at Bragg angles (2\u03b8\xb10.2\xb0) of 6.4\xb0, 26.4\xb0 and 27.2\xb0 in X-ray diffraction with characteristic Cu K\u03b1 line, or a tautomer thereof:
2. A process for producing an azo pigment represented by the following formula (1) or a tautomer thereof, comprising: conducting diazo coupling reaction between a diazonium salt derived from a heterocyclic amine represented by the following formula (2) and a compound represented by the following formula (3):
3. The production process according to claim 2, further comprising successively conducting after-treatment without isolating the azo pigment obtained by the production process according to claim 2.
4. An azo pigment selected from the group consisting of an azo pigment represented by the following formula (1), which has characteristic peaks at Bragg angles (2\u03b8\xb10.2\xb0) of 7.6\xb0 and 25.6\xb0 in X-ray diffraction with characteristic Cu K\u03b1 line, or a tautomer thereof,
an azo pigment represented by the following formula (1), which has characteristic peaks at Bragg angles (2\u03b8\xb10.2\xb0) of 7.0\xb0, 26.4\xb0 and 27.3\xb0 in X-ray diffraction with characteristic Cu K\u03b1 line, or a tautomer thereof, and
an azo pigment represented by the following formula (1), which has characteristic peaks at Bragg angles (2\u03b8\xb10.2\xb0) of 6.4\xb0, 26.4\xb0 and 27.2\xb0 in X-ray diffraction with characteristic Cu K\u03b1 line, or a tautomer thereof:
which is produced by the production process of claim 2.
5. A pigment dispersion which comprises the azo pigment according to claim 1.
6. The pigment dispersion according to claim 5, wherein the azo pigment in the pigment composition has a volume-average particle size of from 0.01 \u03bcm to 0.1 \u03bcm.
7. A coloring composition comprising the azo pigment according to claim 1.
8. The azo pigment according to claim 1, which is the azo pigment represented by the formula (1), which has characteristic peaks at Bragg angles (2\u03b8\xb10.2\xb0 of 7.6\xb0) and 25.6\xb0 in X-ray diffraction with characteristic CU K\u03b1 line, or a tautomer thereof.
9. A coloring composition comprising the azo pigment dispersion according to claim 5.
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 image reading device, comprising:
a reading unit configured to read images from a set of documents by carrying the documents one by one;
a storing unit configured to store read data which the reading unit has obtained by reading the documents;
an error detection unit configured to detect an error of an operation in the reading unit,
wherein the image reading device is configured to stop reading of the documents by the reading unit when the error is detected by the error detection unit,
and to instruct the reading unit to restart reading of the documents; and
a data processing unit configured to:
add identification information, identifying read data corresponding to one page of the documents, to the read data stored in the storing unit each time read data corresponding to one page of the documents is obtained by the reading unit;
identify read data corresponding to a page last obtained by the reading unit before detection of the error in accordance with the corresponding added identification information when the reading of the documents is restarted after the error is detected;
store the read data obtained after restart of reading of the document in the storing unit such that the read data obtained after restart of reading continues from the identified read data corresponding to the page last obtained by the reading unit before detection of the error; and
convert an entirety of the read data of the documents stored in the storing unit into a single file having a predetermined format.
2. The image reading device according to claim 1,
wherein the data processing unit is configured to:
add the identification information to a bottom of the read data corresponding to one page; and
delete the read data, which has been stored in the storing unit to allow continued reading from the identification information corresponding to the page last obtained by the reading unit before detection of the error, from the entirety of the read data stored in the storing unit, when the reading of the documents is stopped after the error is detected.
3. The image reading device according to claim 1,
further comprising a display unit,
wherein the data processing unit is further configured to:
identify read data corresponding to a last page obtained successfully by the reading unit, from the entire read data in the storing unit, based on the identification information corresponding to the page last obtained by the reading unit before detection of the error, when the reading of the documents is stopped after the error is detected; and
display an image corresponding to the identified read data on the display unit.
4. The image reading device according to claim 1,
wherein the image reading device is configured to instruct the reading unit to restart reading of the documents when recovery from the error is detected by monitoring a state of the error detection unit.
5. The image reading device according to claim 1,
wherein the image reading device is configured to instruct the reading unit to restart reading of the documents in accordance with a user command.
6. A non-transitory computer readable medium having computer readable instructions stored thereon, which, when executed by a processor of an image reading device, cause the image reading device to:
control a reading unit of the image reading device to read images from a set of documents by carrying the documents one by one;
store read data obtained by reading the documents in a storing unit including adding identification information, identifying read data corresponding to one page of the documents, to the read data stored in the storing unit each time read data corresponding to one page of the documents is obtained by the reading unit;
detect an error of an operation in the reading unit;
stop reading of the documents by the reading unit when the error is detected;
instruct the reading unit to restart reading of the documents in response to recovery from the error including identifying read data corresponding to a page last obtained by the reading unit before detection of the error in accordance with the corresponding added identification information when the reading of the documents is restarted after the error is detected;
process the read data by storing the read data obtained after restart of reading of the document in the storing unit such that the read data obtained after restart of reading continues from the identified read data corresponding to the page last obtained by the reading unit before detection of the error; and
convert an entirety of the read data of the documents stored in the storing unit into a single file having a predetermined format.
7. The computer readable medium according to claim 6,
wherein the identification information is added to a bottom of the read data corresponding to one page; and
wherein the instructions, when executed, further cause the image reading device to delete the read data, which has been stored in the storing unit to allow continued reading from the identification information corresponding to the page last obtained by the reading unit before detection of the error, from the entirety of the read data stored in the storing unit when the reading of the documents is stopped after the error is detected.
8. The computer readable medium according to claim 6, wherein the instructions, when executed, further cause the image reading device to:
identify read data corresponding to a last page obtained successfully by the reading unit, from the entirety of the read data in the storing unit, based on the identification information corresponding to the page last obtained by the reading unit before detection of the error, when the reading of the documents is stopped after the error is detected; and
display an image corresponding to the identified read data on a display unit of the image reading device.
9. The computer readable medium according to claim 6,
wherein instructing the restart of reading of the documents when recovery from the error is detected is performed by monitoring a state of an error detection unit of the image reading device.
10. The computer readable medium according to claim 6,
wherein instructing the restart of reading of the documents is performed in accordance with a user command.
11. A method for reading a set of documents to be implemented on an image reading device, comprising the steps of:
controlling a reading unit of the image reading device to read images from the set of documents by carrying the documents one by one;
storing read data obtained by reading the documents in a storing unit including adding identification information, identifying read data corresponding to one page of the documents, to the read data stored in the storing unit each time read data corresponding to one page of the documents is obtained by the reading unit;
detecting an error of an operation in the reading unit;
stopping reading of the documents by the reading unit when the error is detected;
instructing the reading unit to restart reading of the documents in response to recovery from the error including identifying read data corresponding to a page last obtained by the reading unit before detection of the error in accordance with the corresponding added identification information when the reading of the documents is restarted after the error is detected;
processing the read data by storing the read data obtained after restart of reading of the document in the storing unit such that the read data obtained after restart of reading continues from the identified read data corresponding to the page last obtained by the reading unit before detection of the error; and
converting an entirety of the read data of the documents stored in the storing unit into a single file having a predetermined format.
12. The method according to claim 11,
wherein the identification information is added to a bottom of the read data corresponding to one page; and
wherein the method further comprises deleting the read data, which has been stored in the storing unit to allow continued reading from the identification information corresponding to the page last obtained by the reading unit before detection of the error, from the entirety of the read data stored in the storing unit, when the reading of the documents is stopped after the error is detected.
13. The method according to claim 11, further comprising:
identifying the read data corresponding to a last page obtained successfully by the reading unit, from the entirety of the read data in the storing unit, based on the identification information corresponding to the page last obtained by the reading unit before detection of the error, when the reading of the documents is stopped after the error is detected; and
displaying an image corresponding to the identified read data on a display unit of the image reading device.
14. The method according to claim 11,
wherein the restart of reading of the documents is instructed when recovery from the error is detected by monitoring a state of an error detection unit of the image reading device.
15. The method according to claim 11,
wherein the restart of reading of the documents is instructed in accordance with a user command.