Download HP Laserjet P1560, P1600 Series (service manual) by Hewlett-Packard PDF

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Extra info for HP Laserjet P1560, P1600 Series (service manual)

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The main motor rotation is repeatedly started and then stopped. The fuser heater is turned on and then off at the same interval as main motor rotation. ● Toner adhered to the pressure roller is fused to the paper. ● The paper is ejected from the product. Chapter 1 Theory of operation ENWW Low-voltage power supply The low-voltage power supply (LVPS) converts ac input voltage to dc voltage. The LVPS has two fuses on the PCA. The LVPS 24 V output is interrupted to the fuser and the high-voltage power supply if the cartridge-door interlock switch (SW501) is in the off position (cover open).

Figure 2-1 Phillips and pozidrive screwdriver comparison Before performing service ENWW ● Remove all paper from the product. ● Turn off the power using the power switch. ● Unplug the power cable and interface cable or cables. ● Place the product on an ESD workstation or mat, or use an ESD strap (if one is available). If an ESD workstation, mat, or strap is not available, ground yourself by touching the sheet-metal chassis before touching an ESD-sensitive part. ● Remove the print cartridge. Electrostatic discharge 37 After performing service ● Plug in the power cable.

Release two tabs. Figure 2-3 Remove the pickup roller (1 of 2) 2. Rotate the roller away from the product to remove it. Figure 2-4 Remove the pickup roller (2 of 2) 40 Chapter 2 Removal and replacement ENWW Separation pad CAUTION: Do not touch the sponge portion of the pad. Skin oils can cause paper handling problems. 1. Place the product rear-side up to access the separation pad assembly. CAUTION: Dirt and debris can scratch the product covers. Place the product on a cloth or other clean surface.

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