Ricoh C249, Service Manual

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MECHANISM OVERVIEW
SM 6-7 C264
C26
4
Switches
No. Component Function
19 Table Lowering Switch Lowers the paper table.
24 Door Safety Switch Checks whether the front door is properly closed.
27 Main Switch Turns the power on or off.
13 Master Making Unit Set Switch Checks if the master making unit is installed.
37 Eject Box Set Switch Checks if the master eject box is installed.
63 Lower master tray set switch Checks if the lower master tray is installed.
Counters
No. Component Function
25 Paper Counter Keeps track of the total number of copies.
26 Master Counter Keeps track of the total number of masters made.
Others
No. Component Function
11 Thermal Head Burns the image onto the master.
3 Exposure Lamp (Xenon Lamp) Applies light to the original for exposure.
71 Ink detection pins Detect if ink is present in the drum
72
Drum thermistor Detects the temperature inside the drum to adjust
various processes.
73
Drum home position indicator
(LEDs) LEDs that indicates the drum position.