Ricoh Neptune-P1 Service Manual page 439

6. Details
• Base engine control, image writing control, etc..
• Basic I/O function control for the power packs, motors, sensors, solenoids, clutches, and fusing.
• Power supply to electrical components (sensors, motors, etc.).
IPU (Image Processing Unit). Manages imaging processing for print jobs, and also manages sending and
receiving data between itself and the GW controller board.
MB (Mother Board). Provides important relay functions for data relay and machine power supply.
VDB (Video Drive Board). Controls operation of the LPH (LED Print Head), including the conversion of video
sent to the LPH.
GW controller (Type-Bz2). Performs overall control of all multi-function peripheral (MFP) devices.
Description of Electrical Components
NUMBER
Lamps
6 L1 Fusing Lamp
LPH
LPH1-3 LPH1-3 (LED Print Head)
Magnetic Clutches
MC1 Cassette Feed Clutch
MC2 Paper Registration Clutch
MC3 Roll Feed Clutch 1
MC4 Roll Feed Clutch 2
MC5 Toner Supply Clutch
Motors
M1 Cassette Feed Motor
438
NAME
One fusing lamp (1100 W) in the hot roller.
Each section writes a part of the image on the PCB
drum. The VDB controls the LPH units.
This transfers power from the cassette feed motor to
the feed and grip rollers in the cassette.
This controls the registration roller. It switches off for a
short time to stop the registration roller to correct skew
in the paper feed path.
This transfers power from the roll feed motor to roll 1
in the roll feeder.
This transfers power from the roll feed motor to roll 2
in the roll feeder.
This controls the toner supply mechanism.
This stepper motor controls the paper feed roller in the
paper cassette.
DESCRIPTION