Ricoh JP5800 - Tables of Electrical Components

ELECTRICAL COMPONENT LAYOUT 1 March, 2000
1-22
1.8.12 TABLES OF ELECTRICAL COMPONENTS
Boards
Index No. Name Function
1 Operation Panel Board Controls the operation panel.
2 Lamp Stabilizer Provides dc power for the xenon lamp.
3 Job Separator Board Controls the job separator.
4 Main Motor Control
Board
Controls the main motor.
5
Power Supply Unit
(PSU)
Provides dc power to the system.
6 Main Processing Unit
(MPU)
Controls all machine functions both directly and
through other boards.
7 I/O Board Controls the mechanical components.
8 Memory Board Enables the image editing function and data
printout via SP mode. This is an option.
9 Interface Board Enables the connection with the PC controller.
This is an option for the China and Ricoh Asia
versions, and a standard component for the
U.S.A and Europe versions.
10
Thermal Head Power
Supply Board
Provides dc power to the thermal head.
11 Sensor Board Unit
(SBU)
Contains the CCD, and outputs a video signal to
the MPU.
19 Feed Pressure
Detection Board
Sends data about the paper feed pressure to the
CPU.
26
Paper Width Detection
Board
Sends data about the paper width on the paper
table to the CPU.
51 Separation Pressure
Detection Board
Sends data about the paper separation pressure
to the CPU.
97 Ink Detection Board Checks if there is ink in the drum.
106 Paper Tray Board Controls the paper tray.
151 Paper Delivery Table
Board
Controls the paper delivery table.
Solenoids
Index No. Name Function
54 Printing Pressure
Release Solenoid
There are two solenoids: one at the front and
one at the rear. They pull the release arms to
apply the printing pressure against the drum.
86 Duct Entrance Solenoid
Opens or closes the plate at the entrance of the
master buffer duct.
103 Tray 1 Right Lock
Solenoid
Locks the right half of the tandem tray while
paper is fed from that tray.
104 Tray 2 Lock Solenoid Locks tray 2 while paper is fed from tray 2.
121 Tray 1 Left Lock
Solenoid
Locks the left half of the tandem tray while the
paper stack is moved from left to right.
123 Tray 1 Connection
Solenoid
Locks the right and left halves of the tandem tray
so that they don’t separate.