Ricoh DD 4450 Service Manual page 27

Solenoids
No. Component
Front Pressure Release
27
Solenoid
Rear Pressure Release
56
Solenoid
Switches
No. Component
Master Making Unit Set
16
Switch
22 Table Lowering Switch
32 Door Safety Switch
35 Main Switch
38 Plotter Safety Switch
52 Eject Box Set Switch
68 Auto Off Switch
69 Master Eject Safety Switch
78 Lower master tray set switch
Counters
No. Component
33 Paper Counter
34 Master Counter
SM
Function
Releases the press roller to apply printing
pressure.
Releases the press roller to apply printing
pressure.
Function
Checks if the master making unit is installed.
Lowers the paper table.
Checks whether the front door is properly closed.
Turns the power on or off.
Checks if the master making unit is installed.
Note: The master making unit is sometimes
called the 'plotter unit'.
Checks if the master eject box is installed.
Turns the power off automatically.
Checks if the master eject unit is installed.
Checks if the lower master tray is installed.
Function
Keeps track of the total number of copies.
Keeps track of the total number of masters made.
1-9
Overview
C279