18891148. INK SUPPLIER (SCREEN Holdings Co., Ltd.)
INK SUPPLIER
Organization Name
Inventor(s)
Yasunori Akiyoshi of Kyoto-shi JP
INK SUPPLIER
This abstract first appeared for US patent application 18891148 titled 'INK SUPPLIER
Original Abstract Submitted
An ink supplier includes a supply reservoir and a recovery reservoir that are connected to a plurality of heads. If abnormality is detected at one of a first and a second pressure regulator that supply negative pressures to the supply reservoir and the recovery reservoir respectively, a controller performs a) cutting off the pressure regulator on the abnormal side and the reservoir from each other; b) opening a bypass valve interposed in a bypass pipe forming communication between an air layer in the supply reservoir and an air layer in the recovery reservoir; c) regulating a negative pressure supplied from the pressure regulator on the normal side to a third negative pressure between a first negative pressure supplied from the first pressure regulator in ordinary time and a second negative pressure supplied from the second pressure regulator in the ordinary time; and d) maintaining the third negative pressure.