2-6.Electrical Parts Function; 2-6-1.Printer - Minolta QMS PageWorks/Pro 1100 Service Manual

2-6. Electrical Parts Function
2-6-1. Printer
Symbol Name
H1 Heater Lamp
HV1 High Voltage Unit
M1 Main Motor
M2 Cooling Fan Motor
M3 Polygon Motor
(Inside of the Print
Head Unit)
PE1 Paper Empty Sensor
PS1 Paper Take-up Switch
PS3 Paper Exit Sensor
PU1 Power Unit
PWB-P Controller Board
Function
A halogen lamp that supplies heat to
the Fusing Rollers. (450W)
Supplies power to the following sec-
tions:
- Drum Charge Brush: Charged volt-
age
- Developing Sleeve Roller: Develop-
ing bias voltage
- Developing Tone Regulation Plate:
Developing blade voltage
- Developing Toner Collecting Plate:
Developing Lower Seal voltage
- Image Transfer Roller: Image transfer
voltage
Is the drive source of the printer.
Exhaust the heat in the body
A regular heptagon polygon mirror is
installed, and rotates at high speed
and makes the laser scan in scanning
direction.
Detects the presence of paper.
The signal is L when the paper is
detected.
Detects when paper is picked up.
The signal is H when the paper is
detected.
Detects when the paper is fed out.
The signal is H when the paper is
detected.
Converts the power voltage from AC
voltage into DC voltage and supplies
that to H1.
Communicates with the personal com-
puter and controls all printer opera-
tion.
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