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SHARP SERVICE MANUAL JX8200SM [6] EXTERNAL VIEW AND INTERNAL STRUCTURE
C. Motors
No.
Part name
1
Fusing unit drive motor
2
Toner motor (Black)
3
Developing unit drive motor
4
Toner motor (Color)
5
Fan motor
6
OPC drum/Transfer drum drive motor Stepping motor
7
Paper feed unit drive motor
8
Cooling fan motor
9
Scanning motor
D. PWB's
No.
Part name
1
Flash memory PWB (x2)
(PS PWB) (Option)
2
Mother PWB
3
AppleTalk I/F PWB (Option)
4
ICU PWB
5
SIMM memory PWB (x2) (Option)
6
Discharge lamp PWB
7
Power PWB
8
PCU PWB
9
High voltage PWB
10 OPC drum cartridge fuse PWB
11 Relay PWB
12 Image density sensor PWB
13 Operation PWB
14 Paper size sensor PWB
15 High voltage PWB (for discharger) Supplies the high voltage to the discharger.
2
5
Type
Stepping motor
Drives the fusing unit and the transfer drum cleaner.
Stepping motor
Drives the black toner supply section.
Stepping motor
Drives the developing section.
Stepping motor
Drives the color toner supply section.
DC brushless motor Cools the fusing section and discharges ozone.
Drives the OPC drum and the transfer drum.
Stepping motor
Drives the paper feed section such as the paper pickup roller, the paper
transport roller, the resist roller, and the lift cam.
DC brush motor
Cools the power section.
DC brushess motor
Drive the scanning mirror.
5
4
3
2
1
15
13
12
11
14
14
(Japan only)
Translates print data and command data sent from the host, forms image data, and sends dot image
data and print command to the PCU PWB.
Also sends the status data of the printer to the host.
Radiates lights onto the OPC drum to discharge residual charges on it.
Supplies the DC power and controls the fusing heater.
Controls the printer engine.
Supplies the high voltage to the developing bias, the main charger, and the transfer charger.
Includes a fuse inside. Used to detect whether the installed OPC drum cartridge is a virgin one or not.
When a virgin OPC drum cartridge is installed, the fuse is blown to reset the OPC drum counter.
Detects installation of the OPC drum unit.
Interfaces signals of the PCU PWB, the operation PWB, the sensors the detectors, and the loads.
Detects the toner patch image density in the print quality (process) correction. Also detects paper jams.
Controls the keys and displays.
Detects the paper size and installation of the paper cassette.
6 – 19
9
3
8
4
1
6
7
Function, operation
10
6
7
8
9
Function, operation
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