HP Color LaserJet CM1312 Service Manual - Page 94
High-voltage power supply, developing roller, primary transfer pad, secondary transfer roller
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High-voltage power supply The DC controller controls the high-voltage power supply to generate high-voltage biases. The highvoltage power supply generates the high-voltage biases that are applied to the primary charging roller, developing roller, primary transfer pad, secondary transfer roller, and ITB cleaning unit. Figure 5-6 High-voltage power supply Primary charging high-voltage generation circuit Developing high-voltage generation circuit Blade high-voltage generation circuit PRI DEV1 DEV2 DEV3 DEV4 BLD1 BLD2 BLD3 BLD4 Cartridge Photosensitive drum Primary transfer pad ICLB ICLR ITB ITB cleaning unit Secondary transfer roller TR2 TR1_1 TR1_23 TR1_23 TR1_4 ITB cleaning brush high-voltage generation circuit ITB cleaning roller high-voltage generation circuit Secondary transfer high-voltage generation circuit Primary transfer high-voltage generation circuit High-voltage power supply DC controller 80 Chapter 5 Theory of operation ENWW