Canon LBP5050 Series, Service Manual

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Contents
2.6.2.1.1 Speed control on small size paper (Throughput down control)............................................................................................................ 2-13
2.6.2.2 Fixing Temperature Control ......................................................................................................................................................................... 2-13
2.6.2.2.1 Fixing temperature control.................................................................................................................................................................... 2-13
2.6.3 Protective Functions................................................................................................................................................................... 2-14
2.6.3.1 Protective function ........................................................................................................................................................................................ 2-14
2.6.3.2 Fixing unit failure detection.......................................................................................................................................................................... 2-14
2.7 EXTERNAL AND CONTROLS SYSTEM ............................................................................................................... 2-14
2.7.1 Power Supply ............................................................................................................................................................................. 2-14
2.7.1.1 Power Supply ................................................................................................................................................................................................ 2-14
2.7.1.1.1 Low-voltage power supply ................................................................................................................................................................... 2-14
2.7.1.2 Other Function .............................................................................................................................................................................................. 2-15
2.7.1.2.1 Protective function ................................................................................................................................................................................ 2-15
2.7.1.2.2 Power-save mode .................................................................................................................................................................................. 2-15
2.8 ENGINE CONTROL SYSTEM ................................................................................................................................. 2-15
2.8.1 DC Controller............................................................................................................................................................................. 2-15
2.8.1.1 Outline .......................................................................................................................................................................................................... 2-15
2.8.1.2 Motor control ................................................................................................................................................................................................ 2-16
2.8.1.3 Safety ............................................................................................................................................................................................................ 2-17
2.8.2 Main Controller.......................................................................................................................................................................... 2-17
2.8.2.1 Outline .......................................................................................................................................................................................................... 2-17
2.8.2.2 Overview of the Block .................................................................................................................................................................................. 2-17