2.6.1.1 Outline .......................................................................................................................................................................................................... 2-14

2.6.2 Various Control Mechanisms .................................................................................................................................................... 2-14

2.6.2.1 Controlling the Speed of the Fixing Unit...................................................................................................................................................... 2-14

2.6.2.1.1 The speed control of small size paper (throughput down control) ...................................................................................................... 2-14

2.6.2.2 Fixing Temperature Control ......................................................................................................................................................................... 2-15

2.6.2.2.1 Fixing temperature control.................................................................................................................................................................... 2-15

2.6.3 Protective Functions................................................................................................................................................................... 2-15

2.6.3.1 Protective function ........................................................................................................................................................................................ 2-15

2.6.3.2 Fixing unit failure detection.......................................................................................................................................................................... 2-15

2.7 EXTERNAL AND CONTROLS SYSTEM ............................................................................................................... 2-16

2.7.1 Power Supply ............................................................................................................................................................................. 2-16

2.7.1.1 Power Supply ................................................................................................................................................................................................ 2-16

2.7.1.1.1 Low-voltage power supply ................................................................................................................................................................... 2-16

2.7.1.2 Other Function .............................................................................................................................................................................................. 2-17

2.7.1.2.1 Protective function ................................................................................................................................................................................ 2-17

2.7.1.2.2 Power-save mode .................................................................................................................................................................................. 2-17

2.8 ENGINE CONTROL SYSTEM ................................................................................................................................. 2-17

2.8.1 Construction............................................................................................................................................................................... 2-17

2.8.1.1 Outline .......................................................................................................................................................................................................... 2-17

2.8.1.2 Motor control ................................................................................................................................................................................................ 2-18

2.8.1.3 Safety ............................................................................................................................................................................................................ 2-18

2.8.2 Main Controller.......................................................................................................................................................................... 2-18

2.8.2.1 Outline .......................................................................................................................................................................................................... 2-18

2.8.2.2 Overview of the Block .................................................................................................................................................................................. 2-19

Table of Contents