Electrophotography-based additive manufacturing with support structure and support structure removal

A method of printing a plurality of parts in an additive manufacturing system, comprising:

• identifying a plurality of parts to print;
• locating digital representations of the plurality of parts in a build volume;
• generating a digital representation of porous support structures for the plurality of parts to form a digital representation of a part block including the plurality of identified parts and the porous support structures, wherein an inner block wall is generated that is configured to be positioned about at least one of the plurality of parts and a porosity of the support structure increases as a distance from a surface of at least one of the plurality of parts increases in a direction towards a boundary of the print volume;
• slicing the digital representation of the part block including the plurality of identified parts and the porous support structures;
• and
• printing layers of the plurality of parts and support material based upon the sliced digital representation of the part block.