Laser Optical Unit; Paper Feeding System; Process Related Section - Toshiba e-STUDIO 550 Service Manual

8.

LASER OPTICAL UNIT

8. 1. General Description
8. 2. Structure
8. 3. Laser Diode
8. 4. Disassembly and Replacement
9.

PAPER FEEDING SYSTEM

9. 1. General Description
9. 2. Functions
9. 3. Operation
9. 3. 1. Operation of bypass pickup roller
9. 3. 2. Operation of cassette pickup roller
9. 3. 3. Paper separation
9. 3. 4. General operation
9. 4. Drive Circuit for Tray-up Motor
9. 5. Disassembly and Replacement

10. PROCESS RELATED SECTION

10. 1. Construction
10. 2. Functions
10. 3. Charger Wire Cleaner Operational Circuit
10. 4. High-voltage Transformer Output Control Circuit
10. 4. 1. General description
10. 4. 2. Operation
10. 5. Surface Potential Sensor
10. 5. 1. General description
10. 5. 2. Construction
10. 5. 3. Control method
10. 6. Disassembly and Replacement