Service manual

Product spec and feature

Service Manual

2-22

Samsung Electronics

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Transfer 1

• Multi-pass transfer

• Indirect transfer

• Transfer voltage : 0.5 ~ 2.0kV (controllable)

• Roller diameter : Φ14mm

• Transfer unit life : 100K images

1. Developed Image on OPC is transferred onto ITB by T1 Process

2. T1 Voltage is positive which attract toner to ITB

3. 4 times of T1 process is required to make a color image on ITB, which means multi-pass process

4. ITB has a hole as a ﬁducial mark for timing. Engine control for color image is synchronous with it, ITB

Home Sensing Signal

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Transfer 2

• Indirect transfer

• Transfer voltage : 1 ~ 4.0kV (controllable)

• Roller diameter : Φ18.6mm

• Transfer unit life : 100 K images

1. Color image formed on ITB is transferred onto media by T2 process

2. T2 voltage is also positive to get color image moved onto media

3. Toner remained on ITB after T2 process is cleaning by ITB cleaning blade and collected and

4. Transported and retrieved into waste toner box by auger and belt driving system

5. T2 Roll is engaged when color image is being transferred onto media. Otherwise it is disengaged. Clutch

is used for driving T2 Roll engagement and disengagement

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Fusing

• 3 Roll system

-> short warm-up time (35sec)

• Post Pressure Roll

1. Color Image on media is melted down and ﬁxed into media by fusing process