An inkjet printing apparatus comprising: a first inkjet head configured to eject ink to a sheet being conveyed; a second inkjet head arranged parallel to the first inkjet head and downstream of the first inkjet head in a conveyance direction of the sheet and configured to eject ink to the sheet being conveyed; a first platen arranged to face the first inkjet head and configured to support the sheet being conveyed between the first inkjet head and the first platen; a second platen arranged to face the second inkjet head and configured to support the sheet being conveyed between the second inkjet head and the second platen; a first pair of conveyance rollers arranged upstream of the first platen in the conveyance direction and configured to convey the sheet toward the first platen downward with respect to a horizontal direction; and a second pair of conveyance rollers arranged downstream of the first platen and upstream of the second platen in the conveyance direction and configured to receive the sheet conveyed by the first pair of conveyance rollers and convey the sheet toward the second platen downward with respect to the horizontal direction, characterised in that the second inkjet head is arranged at a lower position than the first inkjet head, the second platen is arranged at a lower position than the first platen, and the second pair of conveyance rollers is arranged at a lower position than the first pair of conveyance rollers, wherein a nip point of the second pair of conveyance rollers is arranged at a lower position than a highest point of a first sheet supporter of the first platen and at a higher position than a highest point of a second sheet supporter of the second platen. a first inkjet head configured to eject ink to a sheet being conveyed; a second inkjet head arranged parallel to the first inkjet head and downstream of the first inkjet head in a conveyance direction of the sheet and configured to eject ink to the sheet being conveyed; a first platen arranged to face the first inkjet head and configured to support the sheet being conveyed between the first inkjet head and the first platen; a second platen arranged to face the second inkjet head and configured to support the sheet being conveyed between the second inkjet head and the second platen; a first pair of conveyance rollers arranged upstream of the first platen in the conveyance direction and configured to convey the sheet toward the first platen downward with respect to a horizontal direction; and a second pair of conveyance rollers arranged downstream of the first platen and upstream of the second platen in the conveyance direction and configured to receive the sheet conveyed by the first pair of conveyance rollers and convey the sheet toward the second platen downward with respect to the horizontal direction, characterised in that the second inkjet head is arranged at a lower position than the first inkjet head, the second platen is arranged at a lower position than the first platen, and the second pair of conveyance rollers is arranged at a lower position than the first pair of conveyance rollers, wherein a nip point of the second pair of conveyance rollers is arranged at a lower position than a highest point of a first sheet supporter of the first platen and at a higher position than a highest point of a second sheet supporter of the second platen.