Ricoh

A liquid discharge unit (20) includes: a first head (22) having a first nozzle face having first nozzles on the first nozzle face, the first head configured to discharge a liquid from the first nozzles in a discharge direction, a second head (22) having a second nozzle face having second nozzles on the second nozzle face, the second head configured to discharge a liquid from the second nozzles in the discharge direction, one carriage (23) configured to: mounting the first head and the second head; and movable in a main scanning direction orthogonal to the discharge direction; and a first cap (60), in the one carriage (23), configured to cap the first nozzle face of the first head (22); and a second cap (60), in the one carriage (23), configured to cap the second nozzle face of the second head (22).

An inkjet direct to film (DTF) printer system 100 for producing a thermal transfer film original by forming an image by discharging ink onto a thermal transfer film 120 and forming an adhesive layer 127 on the image includes a liquid discharger 10 to discharge the ink onto the thermal transfer film 120, a dispenser unit 20 which is a non-inkjet type, including a coating nozzle 31 to discharge an adhesive liquid, and to apply the adhesive liquid on the image by discharging the adhesive liquid from the coating nozzle 31, a first carriage 40 to move the liquid discharger 10, a second carriage 50 to move the dispenser unit 20, a conveyor 110 to convey the thermal transfer film 120, and a control unit 200 to control operations of the liquid discharger 10, the dispenser unit 20, the first carriage 40, the second carriage 50, and the conveyor 110, wherein the control unit is to form the adhesive layer 127 by controlling the conveyor 110 to perform a line feed.

A component (19) includes a base material (10) and a water repellent film (18) over the base material (10). The water repellent film (18) includes multiple types of water repellent agents (12, 15) including different molecular structures with each other.

A method for manufacturing a conductive film is provided. The method includes: forming a layered structure (6) by repeating forming a print pattern by applying an ink (20) containing copper and copper hydride onto a substrate (1), and forming a dried film (22) by heating the print pattern and blowing air onto the print pattern; and sintering the layered structure (6).

A liquid discharge head (100, 200) includes: a nozzle plate (1) having a nozzle (4) configured to discharge liquid in a discharge direction (Z); a channel plate (2, 202) over the nozzle plate (1), the channel plate (2, 202) having: a pressure chamber (6); multiple flow restrictors (7, 207): each communicating with the pressure chamber common to each of the multiple flow restrictors (7, 207); overlapped with each other in the discharge direction; and each having a same length in a longitudinal direction (X) orthogonal to the discharge direction (Z); an individual chamber communicating with the pressure chamber (6) through the multiple flow restrictors (7, 207); and a pressure generator (12) configured to generate pressure in the pressure chamber (6).

A liquid discharge head (11) includes a nozzle plate (20A to 20E) having a first nozzle array and a second nozzle array. The first nozzle array has first nozzles (19) to discharge liquid in a discharge direction. The second nozzle array is disposed between the first nozzle array and one edge of the nozzle plate (20A to 20E) in a first direction orthogonal to the discharge direction. The second nozzle array has second nozzles (19) to discharge the liquid in the discharge direction. The first nozzles (19) of the first nozzle array are: arrayed in a second direction orthogonal to the first direction and the discharge direction; and arrayed at a first nozzle density in the second direction. The second nozzles (19) of the second nozzle array are: arrayed in the second direction; and arrayed at a second nozzle density smaller than the first nozzle density in the second direction.

An actuator unit (40) includes a nozzle plate (20) having: a first row having multiple nozzles (19) arrayed at a first interval in a first direction; and a second row adjacent to the first row in an inclined direction inclined with respect to a second direction orthogonal to the first direction. The second row has the multiple nozzles (19) arrayed at the first interval in the first direction. The first row and the second row are separated at a second interval in the second direction. The first row has: a first nozzle at one end of the first row; and a second nozzle adjacent to and inward from the first nozzle in the first direction. The second row has: a third nozzle at one end of the second row. The third nozzle is positioned inward from the second nozzle in the first direction.

A liquid discharge head (11) includes a first actuator unit (40A) including a first nozzle substrate (20A) and a second actuator unit (40B) including a second nozzle substrate (20B). The first nozzle substrate (20A) has first nozzles in a first main portion of the first actuator unit (40A) and first overlapping nozzles in a first overlapping portion other than the first main portion. At least part of the first overlapping nozzles has a first overlapping diameter smaller than the first diameter. The second nozzle substrate (40B) has second nozzles in a second main portion of the second actuator unit (40B) and second overlapping nozzles in a second overlapping portion other than the second main portion. The second overlapping portion is overlapped with the first overlapping portion. At least part of the second overlapping nozzles has a second overlapping diameter larger than the first overlapping diameter.

Powder material from which three-dimensional object having high density and excellent shape retainability can be manufactured is provided. Powder material contains: first powder composed of first alloy; and second powder composed of pure metal or second alloy having composition different from first alloy. Difference (A-B) between melting point (A) of first powder and melting point (B) of second powder is ≥15°C and ≤200°C. Content of second powder is ≥7mass% and ≤30mass% relative to total amount of powder material. Area-weighted average grain size of sintered body obtained by sintering powder material at maximum temperature between melting points of first powder and second powder is less than 1.80 times volume average grain size of first powder, and/or, the first alloy is a titanium alloy which contains at least boron (B), or an aluminum alloy which contains at least one of chromium (Cr), zirconium (Zr), scandium (Sc), or manganese (Mn).

An information processing system includes: an acquisition unit (123) to acquire comment information input by a first user in association with evaluation information on an evaluation made for the first user by a second user; and a skill analysis unit (126) to analyze an evaluation skill of the second user based on the comment information.