Appeal No. 2002-1885 Page 2
Application No. 08/966,453
1. A controller for a printing unit, the controller
comprising:
a mother board having
a central processing unit (CPU),
a first bus system to which said CPU is
directly connected and to which at least one of a
user input device, a first memory and an interface
to a host computer is directly connected, and
a non-processing connector arrangement to
make a direct connection to said first bus system
for devices that are off said mother board without
said connector arrangement processing data passing
therethrough,
a memory board having
a second memory, different than said first
memory, including at least one integrated circuit
(I/C) memory chip, directly connected to said
first bus system via said connector arrangement,
for storing at least one of bitmap data and
compressed bitmap data of a page to be printed,
and
a second bus system to which said second
memory including said at least one IC memory chip
also is directly connected; and
a reader, connected to said second bus
system, for reading at least one of said bitmap
data and said compressed bitmap data of said page
and for providing the read-data to said printing
unit.
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Last modified: November 3, 2007