An apparatus and method are provided for compensating a block error in an image frame. The color transform represents a correspondence relation between a first and a second color space. One of the records comprising first and second entries in the first and second fields respectively is selected. The tables can also include projections and recesses that enable lateral interlocking of the tables to form a larger table top surface. An outlet portion is configured to move ink away from openings formed in the outlet portion toward the main ink outlet, said openings configured to receive ink from ink outlet channels for each of the multiple printhead modules. At least one rear rigid roof section, comprising a rear window, is connected to a main bearing by means of a multi-part articulated chain, whereby a part of the articulated chain brings about at least one movement of the rigid roof section relative to the main bearing and a part of the articulated chain brings about at least one change in the angular position of the rigid roof section.