I/We Claim:
1. A paper sheet handling apparatus used for recognizing a paper
sheet, comprising:
a recognition unit that recognizes a paper sheet;
an operation unit for instructing execution of a data collection processing; and
a control unit that controls, in the data collection processing that is executed after an instruction operation is performed by using the operation unit, the recognition unit to collect data from the paper sheet that is not correctly recognized by the recognition unit; and
a memory that stores therein the data collected by the control unit.
2. The paper sheet handling apparatus as claimed in claim 1,
wherein
the operation unit is used to instruct to perform the data
collection processing in a reject mode, and
in the reject mode, the control unit stores in the memory the
data collected from a paper sheet recognized to be rejected.
3. The paper sheet handling apparatus as claimed in claim 1 or
2, wherein
the operation unit is used to instruct to perform the data collection processing in an accept mode, and
in the accept mode, the control unit stores in the memory the data collected from a paper sheet recognized not to be rejected.

4. The paper sheet handling apparatus as claimed in claim 1,
wherein
if a first paper sheet, from which the data is collected by the recognition unit first after starting the data collection processing, is recognized to be rejected, the control unit stores in the memory the data collected from paper sheets recognized to be rejected, and
if a first paper sheet, from which the data is collected by the recognition unit first after starting the data collection processing, is recognized not to be rejected, the control unit stores in the memory the data collected from paper sheets recognized not to be rejected.
5. The paper sheet handling apparatus as claimed in claim 1, wherein the control unit collects the data from only a predetermined number of paper sheets, including a first paper sheet from which the data is collected by the recognition unit after starting the data collection processing, and stores collected data in the memory.
6. The paper sheet handling apparatus as claimed in claim 1, further comprising
a display unit that displays information about the paper sheet, wherein
the control unit starts the data collection processing and displays on the display unit information about each of paper sheets from which the data is collected by the recognition unit, and stores in the memory the data of the paper sheet that is selected by using the operation unit from among the paper sheets displayed on the

display unit.
7. The paper sheet handling apparatus as claimed in any one of claims 1 to 6, wherein the control unit performs an authentication process of an operator, and permits an operation to move and/or copy the data stored in the memory only when the operator is authorized for the operation.
8. The paper sheet handling apparatus as claimed in any one of claims 1 to 7, wherein the control unit encrypts the data when storing the data in the memory.
9. The paper sheet handling apparatus as claimed in any one of claims 1 to 8, wherein the control unit monitors an operation to move or copy the data stored in the memory and records information about the operation.
10. The paper sheet handling apparatus as claimed in any one of claims 1 to 9, wherein the control unit deletes the data from the memory after the data stored in the memory is collected by a manufacturer of the paper sheet handling apparatus.
11. A paper sheet handling apparatus used for recognizing a paper sheet, comprising:
a memory in which data for recognition used to recognize each of a plurality of types of paper sheets has been stored;
a recognition unit that recognizes a paper sheet based on the data for recognition;

an operation unit for instructing execution of data collection processing; and
a control unit that controls, in the data collection processing that is executed after an instruction operation is performed by using the operation unit, the recognition unit to collect data from a paper sheet that is not correctly recognized by the recognition unit, determines whether it is possible to correctly recognize each of the paper sheets by the recognition unit if the data for recognition is updated based on collected data, and updates the data for recognition based on the collected data upon determining that it is possible to correctly recognize each of the paper sheets.
12. The paper sheet handling apparatus as claimed in claim 11, wherein, when the control unit determines that it is not possible to correctly recognize each of the paper sheets by the recognition unit even by updating the data for recognition based on the data collected from the paper sheet that is not correctly recognized, the control unit does not update the data for recognition and stores the data collected from the paper sheet that is not correctly recognized.
13. The paper sheet handling apparatus as claimed in claim 11 or 12, wherein in the data collection processing, the control unit acquires dimension data from the paper sheet that is not correctly recognized by the recognition unit, and updates the data for recognition based on the dimension data.
14. The paper sheet handling apparatus as claimed in any one of

claims 11 to 13, in the data collection processing, the control unit acquires character data from the paper sheet that is not correctly recognized by the recognition unit, and updates the data for recognition based on the character data.
15. A paper sheet handling method implemented in a paper sheet handling apparatus used for recognizing a paper sheet in a shop, comprising:
switching a processing mode to a data collection processing mode upon receiving an operation from an employee of the shop;
collecting data from a paper sheet that is not correctly recognized in the paper sheet handling apparatus; and
prohibiting moving and copying of the data collected from the paper sheet to outside of the paper sheet handling apparatus, and retaining the data inside the paper sheet handling apparatus until the data is collected by a manufacturer of the paper sheet handling apparatus.