An ink jet recording method, utilizing a feeding device of a recording medium, a recording device, a discharging device and first and second hardware processors, the method comprising:
- a feeding operation of the recording medium, a first conveying operation, a first recording operation, a reversing operation, a second conveying operation, a second recording operation, and a discharging operation, wherein
- in the feeding operation, the recording medium is fed from a feeding device to the recording device,
- in the first conveying operation, the recording medium fed by the feeding operation is conveyed to a temperature controlling recording drum while being heated by a temperature controlling conveyance drum,
- in the first recording operation, the recording medium conveyed by the first conveying operation is conveyed while being heated by the temperature controlling recording drum, and ink is applied to a first surface of the recording medium so as to record an image thereon,
- in the reversing operation, the recording medium to the first surface of which the ink is applied is reversed,
- in the second conveying operation, the recording medium reversed by the reversing operation is conveyed to the temperature controlling recording drum while being heated by the temperature controlling conveyance drum,
- in the second recording operation, the recording medium conveyed by the second conveying operation is conveyed while being heated by the temperature controlling recording drum, and ink is applied to a second surface of the recording medium so as to record an image thereon, and
- in the discharging operation, the recording medium to the first surface and the second surface of which the ink is applied is discharged,
- the recording device includes a conveyance mechanism, a recording mechanism and a reversing mechanism,
- the discharging device includes a discharging mechanism,
- the conveyance mechanism includes a temperature controlling conveyance drum that conveys the recording medium to the recording mechanism while controlling temperature of the recording medium,
- the recording mechanism includes a temperature controlling recording drum that conveys the recording medium conveyed from the conveyance mechanism, and a process section that applies ink to one surface of the recording medium so as to record an image thereon,
- the first hardware processor controls the reversing mechanism to reverse the recording medium to the one surface of which the ink is applied and then delivers the recording medium to the conveyance mechanism, and wherein there is provided the discharging mechanism upstream of the reversing mechanism in a conveyance direction of the recording medium, and
- the second hardware processor controls to switch conveyance paths and to determine whether the recording medium to which the ink is applied is conveyed to the discharging mechanism or the reversing mechanism,
- each of the conveyance mechanism, the recording mechanism, and the reversing mechanism includes a plurality of openable and closable claw devices for holding a front end of the recording medium in the conveyance direction in a closed state thereof in a drum included in each of the conveyance mechanism, the recording mechanism, and the reversing mechanism, and
- at least during a period from application of ink to one surface of the recording medium to application of ink to the other surface of the recording medium by the recording mechanism, the claw device provided in the drum on the upstream side in the conveyance direction is opened and the claw device provided in the drum on the downstream side in the conveyance direction is closed when the recording medium is conveyed in three conveyance paths (1), (2) and (3) described below, whereby the front end of the recording medium in the conveyance direction is sequentially delivered from the drum on the upstream side in the conveyance direction to the drum on the downstream side in the conveyance direction so as to be conveyed,
- conveyance path (1):
- Path for conveying the recording medium from the recording mechanism to the reversing mechanism,
- conveyance path (2):
- Path for conveying the recording medium from the reversing mechanism to the conveyance mechanism,
- conveyance path (3):
- Path for conveying the recording medium from the conveyance mechanism to the recording mechanism, and
- the reversing mechanism includes a drum which rotates at the same speed as a linear speed of a recording medium loading surface of each of a drum included in the conveyance mechanism and the temperature controlling recording drum, and a drum which rotates at a different speed from the linear speed of the recording medium loading surface of each of the drum included in the conveyance mechanism and the temperature controlling recording drum.