US 7,517,042 B2
Delaying printing in response to highest expected temperature exceeding a threshold
Cesar Fernandez Espasa, San Diego, Calif. (US); Santiago Garcia-Reyero Vinas, San Diego, Calif. (US); and Virginia Palacios Camarero, Barcelona (Spain)
Assigned to Hewlett-Packard Development Company, L.P., Houston, Tex. (US)
Filed on Mar. 10, 2005, as Appl. No. 11/76,710.
Prior Publication US 2006/0203027 A1, Sep. 14, 2006
Int. Cl. B41J 29/38 (2006.01)
U.S. Cl. 347—17 24 Claims
OG exemplary drawing
 
1. An image forming system comprising:
means for creating a density profile associated with an image;
means for predicting a highest expected temperature associated with a printhead using the density profile prior to printing the image;
means for delaying printing the image prior to beginning the printing of the image in response to the highest expected temperature exceeding a threshold;
means for monitoring an actual temperature of the printhead in response to printing the image; and
means for detecting a malfunction of the printhead in response to the actual temperature differing from the highest expected temperature by a predetermined amount.