Service manual

28 March 2006 ELECTRICAL COMPONENT LAYOUT
6-3
Detailed
Descriptions
Boards
Index No. Name Function
18 LCD Displays messages for the operator
19 Operation Panel Boards These boards control the operation panel.
21 Lamp Stabilizer This supplies power to the xenon lamp.
25 SBU Makes a video signal from the scanned original.
43 Main Processing Unit
(MPU)
Controls all machine functions both directly and
through other boards.
48 Power Supply Unit Provides dc power to the system.
Motors
Index No. Name Function
1 Scanner Motor Stepper motor drives the book scanner.
4 Master Feed Motor Feeds the master to the drum.
11 Paper Table Motor Raises and lowers the paper table.
15 Cutter Motor Cuts the master.
29 Master Eject Motor Sends used masters into the master eject box.
30 Air Knife Fan Motor Rotates the fan to provide air to separate the
leading edge of the paper from the drum.
32 Vacuum Fan Motor Provides suction so that paper is held firmly on the
transport belt.
34 Pressure Plate Motor Raises and lowers the pressure plate.
36 Clamper Motor Opens or closes the drum master clamper.
40 Main Motor Drives paper feed mechanisms, the drum, and the
paper delivery unit.
41 Registration Motor Feeds the paper to align it with the master on the
drum.
45 Original Feed Motor Stepper motor drives the book scanner.
Solenoids
Index No. Name Function
13 Front Pressure Release
Solenoid
Releases the press roller to apply printing
pressure.
38 Rear Pressure Release
Solenoid
Releases the press roller to apply printing
pressure.
Switches
Index No. Name Function
9, 14 Master making unit set
switches
The machine does not work until the two set
switches turn on.
12 Paper Table Lowering
Switch
Lowers the paper table.
16 Master eject unit safety
switch
Checks whether the master eject unit is properly
closed.
17 Door Safety Switches Checks whether the front door is properly closed.
24 Cutter HP Switch Detects when the cutter is at the home position