HP 220 - Manual (Page 53)

5Ć21 Functional Overview C3187Ć90000
Plotter Architecture
The plotters have the multiprocessor architecture showninthe following diagram:
80960 bus
Main
Processor
(80960KA) Internal
Memory
(ROM/RAM) Expansion
Memory
(SIMM DRAM) I/O
(Centronics)
(RS–232)
Shuffler
ASIC Swath RAM
(256 KB) Support
ASIC
Encoders
Motor Drivers
Nozzle
Timing ASIC
Carriage
Processor
(8051) Servo
Processor
(8052)
EEPROM
(256)
Cartridge
Drivers
Line Detector
Sensors
Front Panel
Plotter Architecture
The plotter electronics, besides sensors and cables, consist of the following assemblies:
D MainPCA
D Carriage PCA
D FrontĆPanel PCA
D Power Supply
These are described onthe following pages.