| US 7,349,122 B2 | ||
| Printer and method for controlling same | ||
| Atsushi Sakamoto, Kanagawa (Japan); Yuji Hamasaki, Kanagawa (Japan); and Hidehiko Kanda, Kanagawa (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Aug. 11, 2004, as Appl. No. 10/915,357. | ||
| Application 10/915357 is a division of application No. 10/252585, filed on Sep. 24, 2002, granted, now 6,820,956. | ||
| Claims priority of application No. 2001-305409 (JP), filed on Oct. 01, 2001. | ||
| Prior Publication US 2005/0007623 A1, Jan. 13, 2005 | ||
| Int. Cl. B41J 2/165 (2006.01); G06K 15/00 (2006.01) | ||
| U.S. Cl. 358—1.8 [358/1.14; 347/23] | 19 Claims |
| 1. A printer for performing printing operations on a recording medium on the basis of data transmitted from an information
processing apparatus, comprising:
preprinting preparation means for performing predetermined preparation operations, which are performed before the printing
operations are performed, with first time information representing the time when the predetermined preparation operations
were last performed, and with an initial value of the first time information being set to a future time projected to be later
than the shipment time of the printer;
storing means for storing first time information indicating the time when the predetermined preparation operations were last
performed;
controlling means that (i) receives second time information indicating the current time transmitted from the information processing
apparatus, (ii) calculates the time elapsed between the time indicated by the first time information, representing the time
when the predetermined preparation operations were last performed, and the time indicated by the second time information,
representing the current time, and (iii) controls the predetermined preparation operations on the basis of the elapsed time;
and
information updating means for updating the first time information stored in the storing means at the time when the predetermined
preparation operations are performed,
wherein the controlling means controls the predetermined preparation operations irrespective of whether the value of the elapsed
time is calculated to be positive or negative.
|