Freshly printed sheets are transferred from one printing unit to another
by transfer cylinders each having an ink repellent, electrically
conductive, striped flexible jacket covering that is movable relative to
the sheet support surface of the transfer cylinder. The jacket covering
is made of a flexible fabric material that is pre-stretched, pressed
flat, cut to size and treated with an ink repellent compound and is also
treated with an anti-static ionic compound or is otherwise rendered
electrically conductive by one or more conductive strands. Electrostatic
charges carried by the freshly printed sheets are discharged through the
ink repellent, electrically conductive, flexible jacket covering into the
grounded transfer cylinder. A low friction, electrically conductive
cylinder base covering that includes center alignment marks is secured to
the transfer cylinder for engaging the flexible jacket covering. The ink
repellent, electrically conductive flexible jacket covering is provided
with alignment center marks and alignment stripes so that the flexible
jacket covering can be precisely aligned with ease and secured over the
gripper edge, tail edge and side edges of the transfer cylinder. The low
frictional coefficient of the conductive cylinder base covering is
further reduced by nodes and/or openings.