14 June, 2002 COMPONENT LAYOUT
Spec-9
Spec.
PCBs
No Name Description
8 Status Indicator It shows machine condition with green and red LEDs.
28
Paper End/Near-end
Indicator Board
Lights an LED when the paper in the tray has run out.
33
LDDR (Laser Diode
Driver)
This board drives the laser diode.
37 Relay Board Provides harness connection points for sensors.
38 Power Pack
Supplies high voltage to the charge brush roller, transfer
roller, and development rollers.
39
NCU (Network Control
Unit)
This board contains relays and switches for interfacing
the machine with the network.
40 MBU (Mother Board Unit)
This contains Flash ROM for firmware, SRAM for user
setting and DRAM.
41 PSU (Power Supply Unit)
This board supplies power to the machine, and switches
the fusing lamp on/off.
42
FCU (Facsimile Control
Unit)
This board controls the machine.
43 NIC (Internet Fax)
This allows the machine to be connected to a LAN as an
Internet fax.
44 OPIF (Option Interface) Interfaces the optional interface boards with the FCU
45 Function Upgrade Unit
Expands some of the functions, such as the number of
speed dial.
46 SiG4 This is an interface to connect to an ISDN network.
47 SG3 This is an interface to connect to an extra PSTN line.
48 JPEG
Compresses and decompresses color images. Part of
the NIC fax kit.
49
OPU (Operation Panel
Unit)
This board controls the operation panel.
H310V013.WMF
37
38
39
41
42
43
45
46
47
48
49
44
40
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