| US 7,573,592 B2 | ||
| Status data transmission of image processing apparatus | ||
| Nobuyuki Hirai, Chiba (Japan); and Reiji Hasegawa, Ibaraki (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jun. 13, 2003, as Appl. No. 10/460,229. | ||
| Claims priority of application No. 2002-177640 (JP), filed on Jun. 18, 2002. | ||
| Prior Publication US 2003/0233443 A1, Dec. 18, 2003 | ||
| Int. Cl. G06F 3/12 (2006.01); G06K 15/02 (2006.01); H04N 1/21 (2006.01); H04N 1/32 (2006.01); H04N 1/327 (2006.01); H04N 1/333 (2006.01); G06F 3/00 (2006.01) | ||
| U.S. Cl. 358—1.15 [358/1.13; 358/406; 358/434; 358/435; 358/468; 358/437; 358/438; 358/439; 358/1.16] | 10 Claims |
| 1. An image processing apparatus connected to an external processing apparatus having a host function comprising:
a printing unit having a print controller and configured to execute a PC printing based on an instruction from the external
processing apparatus and a local printing based on an instruction from the image processing apparatus;
a first interface unit configured to connect to the external processing apparatus, said first interface unit having a client
function;
a second interface unit, compliant with a communication standard identical to a communication standard of said first interface
unit, connected to said printing unit, said second interface unit having the host function in communication with said printing
unit;
a first memory unit configured to store management information managed by the image processing apparatus:
a second memory unit, which is managed by the print controller in the printing unit, configured to store status information
of the printing unit; and
a control unit configured to control a transfer of at least one of the status information and the management information,
without processing the status information and the management information, between said first interface unit and said second
interface unit,
wherein, upon starting the local printing, said control unit transfers the management information stored in said first memory
unit to said second memory unit via the second interface unit and, when status information of said printing unit is requested
by the external processing apparatus via the first interface during execution of the local printing, receives the requested
status information of said printing unit and the management information, which are stored in said second memory unit from
the print controller via the second interface unit and transfers the received status information and management information
to the external processing apparatus via the first interface unit.
|