US 9,809,024 B2
Image forming apparatus
Kenichiroh Hashimoto, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Kenichiroh Hashimoto, Kanagawa (JP)
Filed on May 27, 2016, as Appl. No. 15/166,988.
Claims priority of application No. 2015-118687 (JP), filed on Jun. 11, 2015; and application No. 2016-082372 (JP), filed on Apr. 15, 2016.
Prior Publication US 2016/0361919 A1, Dec. 15, 2016
Int. Cl. B41J 2/21 (2006.01); B41J 2/145 (2006.01); B41J 11/00 (2006.01); B41J 2/045 (2006.01)
CPC B41J 2/145 (2013.01) [B41J 2/04581 (2013.01); B41J 2/04593 (2013.01); B41J 2/04596 (2013.01); B41J 2/2114 (2013.01); B41J 2/2117 (2013.01); B41J 11/0015 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An image forming apparatus, comprising:
a recording head to discharge a liquid on a recording medium while scanning in a main scanning direction and a sub-scanning direction relative to the recording medium, the recording head including:
a first nozzle array; and
a second nozzle array, the second nozzle array being shorter than the first nozzle array in the longitudinal direction and disposed not overlapped with the first nozzle array in the main scanning direction; and
control circuitry configured to cause the first nozzle array to discharge the liquid in a first discharge amount per unit time per unit length in a longitudinal direction, and cause the second nozzle array to discharge the liquid in a second discharge amount per unit time per unit length in the longitudinal direction,
wherein the second discharge amount is larger than the first discharge amount.