20-17
20.2 Electrical Parts and Circuit Board Layout Diagrams
20
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Circuit Board/Electrical Equipment Function
Circuit Board
Function
AOM23
AOM driver for B and G (R is connected to the laser optical unit directly.)
CTL23
Mechanical control for the printer and processor
GDM23
DIMM (accumulates image data) 512MB
GEP23
Exposure control (outputs image data to the laser optical unit.)
GIE23
Interface to SP-3000 (receives input image data.)
GMC23
Image control motherboard (processes gradation of input image data and outputs to the correct receiver.)
and main control for the LP5700
GPR23
Expanded functions (backup, power supply control and operation panel communication) of the GMC23
JND23
Printer sensor relay
JNE23
Processor sensor relay
JNF23
Back printer relay
LDD23
Control of the parts in the laser optical unit
PAC23
AC load (heaters) driver for the processor
PDA23
DC load (motors, solenoids and fans) driver for the printer
PDB23
DC load (motors, solenoids and fans) driver for the processor
PWR23
DC power interlock and distribution
Electrical Equipment
Function
Power Supply Section
AC power supply parts assembly [breakers, noise filters, circuit protectors, relays, transformer,
SSR and auxiliary power (SPS23 circuit board)]
DC Power Supply Unit
DC 5V, 8V, 12V and 24V power supply
ATX Power Supply (ATX23
Circuit Board)
DC-DC power supply for image control