US 9,811,050 B2
CRUM chip and image forming device for communicating mutually, and method thereof
Jae-Yoon Lee, Seoul (KR); and Hong-Rok Woo, Yongin-si (KR)
Assigned to S-PRINTING SOLUTION CO., LTD., Suwon-si (KR)
Filed by Jae-Yoon Lee, Seoul (KR); and Hong-Rok Woo, Yongin-si (KR)
Filed on Apr. 12, 2012, as Appl. No. 13/445,535.
Claims priority of application No. 10-2011-0092060 (KR), filed on Sep. 9, 2011.
Prior Publication US 2013/0063770 A1, Mar. 14, 2013
Int. Cl. H04N 1/64 (2006.01); G03G 21/18 (2006.01)
CPC G03G 21/1882 (2013.01) 15 Claims
OG exemplary drawing
 
1. A Customer Replaceable Unit Monitoring (CRUM) chip operable to communicate with an image forming device, the CRUM chip comprising:
an interface including at least one contact and operable to receive first data and first integrity detection data regarding the first data that is transmitted from a main controller of the image forming device connecting with the at least one contact of the interface;
a controller that is operable to generate second integrity detection data using both second data to be transmitted to the main controller of the image forming device and the first integrity detection data, and that is operable to transmit the second data and the second integrity detection data from the CRUM chip to the main controller of the image forming device.