HP 3100, 3150 manual Removal and replacement strategy

Removal and replacement strategy

WARNING!

CAUTION

CAUTION

This chapter documents removal and replacement of field replaceable units (FRUs) only.

Replacement is generally the reverse of removal. Occasionally, notes are included to provide direction for difficult or critical replacement procedures.

Unplug the power cord from the power outlet before attempting to service the HP LaserJet 3100/3150 product. If this warning is not followed, severe injury can result. Certain functional checks must be performed during troubleshooting with power supplied to the product. However, the power supply should be disconnected during disassembly.

Never operate or service the HP LaserJet 3100/3150 product with the protective cover removed from the laser/scanner assembly. The reflected beam, although invisible, can damage your eyes.

The sheet metal edges of the HP LaserJet 3100/3150 product can be sharp. Exercise caution when working the HP LaserJet 3100/3150 product.

The HP LaserJet 3100/3150 product contains parts that are electrostatic discharge (ESD) sensitive. Always perform servicing at an ESD-protected workstation.

If possible, print the configuration report before working on the product. Removing the screws from the formatter board clears the settings in memory. Clearing the settings can render the product illegal or inoperable. The list of configuration settings can assist in restoring the settings.

Note

To install a self-tapping screw, first turn it counterclockwise to align it with the existing thread pattern, then carefully turn clockwise to tighten. Do not overtighten. If a self-tapping screw-hole becomes stripped, repair the screw-hole or replace the affected assembly.

Note Always remove the toner cartridge before removing or replacing parts.

86 Removal and replacement EN