Service manual

OVERVIEW
G130/G131 6-4 SM
6.1.4 BOARD STRUCTURE
Overview
Descriptions
BCU (Base Engine Control Unit):
The BCU controls all the mechanical components. The BCU has three CPUs (Main,
MUSIC, and DSP). The CPUs control the following functions:
Main CPU
• Engine sequence
• Engine operation
• Timing for peripherals
• High voltage supply, laser, and fusing
• Sensors, drive board, and solenoids
• Motors
MUSIC (Mirror Unit for Skew and Interval Correction) CPU
• TD sensor
• Line position adjustment
• Memory chip on the toner cartridge
DSP (Digital Signal Processor)
• Line position adjustment
Clutches
Paper
Feed
Unit
LCT
Duplex
Unit
Memory Chip
(Toner
Cartridge)
Operation
Panel
Thermistor
s
Two-Tray
Finisher
Booklet
Finisher
Controller
Bluetooth
Fusing
Lamps
PCI
bus
High Voltage
Supply Board -
T, PA, CL
High Voltage Supply Board - C, B
PSU
DRB
IEEE1394
IEEE1284
Memory
DIMMs
Optional
components
Standard
components
IEEE802.11
b
Motors
Sensors
Synch.
Detectors
LD Boards
Motors
Polygon
Motor
Sub PSU
BCU
Ethernet
USB
SD Card
HDD
(Option for G130)
(Option for G130)
Gigabit
Ethernet
USB Host
I/F
G130D504.WMF