Theory of Operation
Phaser® 3500 Laser Printer Service Manual
8-10
Main Board
The Main Board combines the Image Processor and Engine Control functions. It contains a 32
bit RISC processor and comes with a standard memory capacity of 32 Mbytes of RAM and
4 Mbytes of flash memory. The board provides one expansion slot that allows available
memory to be expanded up to 288 Mbytes by adding an additional RAM DIMM.