Appeal No. 2001-1417
Application No. 09/042,520
The claimed invention is directed to a printing machine
having a stationary laser imaging device, which is shared by at
least two form cylinders, that emits laser pulses in a beam
bundle along a beam path. Further provided is light diversion
apparatus movable in the beam path for dividing the beam bundle
into partial beams and selectively deflecting the laser pulses
onto the circumferential surfaces of respective ones of the form
cylinders.
Claim 1 is illustrative of the invention and reads as
follows:
1. A printing machine, comprising:
at least two form cylinders;
a stationary imaging device having a laser unit operative to
emit laser pulses in a beam bundle along a beam path for imaging
printing forms on the form cylinders; and light diversion means
movable in the beam path for dividing the beam bundle into
partial beams and selectively deflecting the laser pulses
produced by the laser unit onto one of the at least two form
cylinders.
The Examiner relies on the following prior art:
Ketley 3,867,150 Feb. 18, 1975
Goldberg 4,383,261 May 10, 1983
Williams et al. (Williams) 5,351,617 Oct. 04, 1994
Bronstein 5,526,107 Jun. 11, 1996
Nishioka et al. (Nishioka) 5,642,182 Jun. 24, 1997
(filed Dec. 28, 1995)
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