US 7,320,511 B2
Image forming apparatus and high-resolution printing method in a horizontal direction
Young-do Jung, Suwon-si (Korea, Republic of)
Assigned to Samsung Electronics Co., Ltd., Suwon-Si (Korea, Republic of)
Filed on Oct. 13, 2004, as Appl. No. 10/962,496.
Claims priority of application No. 10-2003-0092469 (KR), filed on Dec. 17, 2003.
Prior Publication US 2005/0134626 A1, Jun. 23, 2005
Int. Cl. B41J 29/393 (2006.01)
U.S. Cl. 347—19 11 Claims
OG exemplary drawing
 
1. A high-resolution printing method for printing in a horizontal direction for an image forming apparatus, comprising the steps of:
receiving from a host computer a print data;
calculating a divider coefficient N, a print fire position unit (PFPU), a position offset (PO) and a print position (PP), and a print fire start position (PFSP) based on print data;
detecting a position of a carriage operated by a control signal for driving the carriage; and
if the carriage reaches the PP, delaying generation of an ink firing signal and then starting a printing by generating and outputting the ink firing signal, starting from the PFSP;
wherein the PO is the remainder obtained by dividing print position information by the divider coefficient N.