Patent ID: 8672441

Claim:
An inkjet printing apparatus comprising: a printing device having a first ink group and a second ink group, which prevents a sedimentation of the first ink group; a platen ink absorber configured to receive inks ejected from the printing device during a marginless printing; a counting device configured to count, for each of a plurality of regions into which the platen ink absorber is divided, ink volumes of the first ink group and the second ink group ejected from the printing device; and an estimation device configured to estimate a ratio of ink components for each of the color inks and for each of the plurality of regions; wherein, from a result of the estimation by the estimation device and from a result of the counting by the counting device, a decision is made as to whether the first ink group will sediment on the platen ink absorber, and when it is decided that the first ink group will sediment, an ink of the second ink group is ejected.