| (19) |
 |
|
(11) |
EP 0 371 703 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
22.11.1990 Bulletin 1990/47 |
| (43) |
Date of publication A2: |
|
06.06.1990 Bulletin 1990/23 |
| (22) |
Date of filing: 24.11.1989 |
|
| (51) |
International Patent Classification (IPC)5: B65H 7/12 |
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
26.11.1988 JP 154178/88
|
| (71) |
Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA |
|
Chiyoda-ku
Tokyo (JP) |
|
| (72) |
Inventor: |
|
- Futaki, Yasuhiro
c/o Mitsubishi Denki K.K.
Kamakura-shi
Kanagawa-ken (JP)
|
| (74) |
Representative: Lawson, David Glynne (GB) et al |
|
Marks & Clerk
57-60 Lincoln's Inn Fields
GB-London WC2A 3LS
GB-London WC2A 3LS (GB) |
|
| |
|
(57) A document scanner (111) includes a document tray (2) for supporting a plurality
of documents (11) to be read, a reading section (61) for reading contents of the documents,
and a document feeder (4) for feeding the documents one by one to the reading section
from the document tray. A code decoder (63) is provided in the read section for reading
a code (12) provided at a leading edge of each of the documents. A detecting unit
(64) is connected to the code decoder for detecting multiple feeding when the code
decoder is unable to read the code which is covered by the preceding document.