A method for producing printed products, according to which method the surface
of a sheet of paper or board is printed by the electrophotography technique or
a similar printing method, wherein a dry finely-divided printing ink is transferred
onto the printing base by means of an electric field. According to the invention,
a paper or board is used the printing surface of which has a pigment-containing
coating layer in which at least 20% of the pigment is made up of a hydrous pigment,
such as gypsum, or in which at least 20% of the filler is made up of a hydrous
filler, such as gypsum. When a gypsum pigment and/or a gypsum filler is used, the
quality of the printed image is not sensitive to the control quantities used in
the printing press. By means of the invention, a very regular print is indeed obtained,
and so the invention is especially well suited for the printing of a sheet of a
very matt paper or board.
