Rectifying device, coating apparatus, coating method, and photoconductor manufacturing method

A rectifying device comprising:

• a first flow channel member that has an annular first flow channel through which a fluid flows in an axial direction, the first flow channel being provided between an inner peripheral wall and an outer peripheral wall;
• a second flow channel member that has a second flow channel between the inner peripheral wall and the outer peripheral wall, the second flow channel being provided upstream of the first flow channel in a flowing direction of the fluid and being connected with the first flow channel along an entire circumference;
• an inflow section that is provided at the second flow channel member and that allows the fluid to flow into a circumferential area of the second flow channel located away from the first flow channel in the axial direction;
• a first guide wall that is provided within the second flow channel at a position located away from the inflow section in a circumferential direction and that guides the fluid flowing toward a first side in the circumferential direction through the second flow channel toward the first flow channel;
• and
• a second guide wall that is provided within the second flow channel at a position adjacent to the first guide wall in the circumferential direction, the second guide wall guiding the fluid flowing toward a second side in the circumferential direction through the second flow channel toward the first flow channel and being disposed in a direction intersecting the first guide wall
• wherein the inflow section includes two or more inflow sections, and each of the inflow sections is provided with the first guide wall and the second guide wall,
• wherein the fluid flowing in from one of the inflow sections of a neighboring pair and flowing toward the first side in the circumferential direction through the second flow channel is guided to the first guide wall, and
• wherein the fluid flowing in from another one of the inflow sections of the neighboring pair and flowing toward the second side in the circumferential direction through the second flow channel is guided to the second guide wall adjacent to the first guide wall.