2GL/2FV/2FW
2-2-1
2-2 Electrical Parts Layout
2-2-1 Electrical parts layout
(1) Electrical parts layout
Figure 2-2-1 Electrical parts layout
1. Main PWB (For 16 ppm GDI printer)............ Controls the software such as the print data processing and provides the
interface with computer.
2. Main PWB (For 16/18 ppm printers) ............ Controls the software such as the print data processing and provides the
interface with computer.
3. Engine/high voltage PWB ............................ Controls the input/output of electrical parts and generates the high volt-
age.
4. Power source PWB...................................... After full-wave rectification of AC power source input, switching for con-
verting to 24 V DC and 5 V DC for output.
5. Connect PWB .............................................. Consists the buzzer and wiring relay circuit.
6. Operator panel PWB.................................... Indicates the LED indicators and controls key inputs.
7. Eraser lamp PWB ........................................ Eliminates the residual electrostatic charge on the drum.
8. Zener PWB .................................................. Adjusts the main charger grid electrostatic potential.
9. Registration sensor...................................... Detects the timing of primary feeding and paper jam.
10. Paper sensor................................................ Detects paper in the paper cassette.
11. Exit sensor ................................................... Detects paper jam in the fuser unit and paper exit section.
12. Toner empty sensor ..................................... Measures toner in the toner container.
13. Waste toner full sensor ................................ Detects the waste toner reservoir (drum unit) being full.
14. Interlock switch ............................................ Monitors whether the top cover is open and cuts off the 24 V DC power
source.
15. Power switch................................................ Turns ON/OFF the AC power source.
16. Fuser thermistor........................................... Measures the heat roller temperature.
17. Main motor................................................... Drives the entire machine.
18. Cooling fan motor......................................... Cools the interior of machine.
19. Polygon motor.............................................. Drives the polygon mirror.
Fuser unit
Drum unit
Developer unit
Laser
scanner unit
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