HP Color LaserJet MFP M577, MFP M578, MFP E57540 - Removal and replacement: Dual in-line memory module (DIMM) (M577/M578/E57540)

Follow these steps to remove the formatter cover.

1. Locate the formatter cover.

   Locate the formatter cover

   

2. Loosen the two thumbscrews (callout 1). Grasp the two thumbscrews, and then slide the cover away from the printer (callout 2) to remove it.

   Tip:

   If needed, use the edge of a coin to turn the thumbscrews.

   Loosen the thumbscrews

   

Follow these steps to remove the hard-disk drive (HDD).

1. Release two tabs (callout 1). Hold the tabs in the released position, and then rotate the hard disk drive (HDD) up (callout 2 ) to release the connector from the formatter

   Release the HDD

   

2. Slide the HDD away from the printer to remove it.

   Remove the HDD

   

Follow these steps to remove the DIMM.

1. Locate the DIMM component on the formatter.

   Locate the DIMM

   

2. Do the following:

   1. Release two locking arms (callout 1).

      Release the DIMM

      

   2. Pull the DIMM down and away from the holder to remove it.

      Remove the DIMM

      

Follow these steps to unpack the replacement assembly.

1. Dispose of the defective part.

   Note:

   HP recommends responsible disposal of the defective part.

   http://www8.hp.com/us/en/hp-information/environment/product-recycling.html

2. Unpack the replacement part from the packaging.

   CAUTION:

   Some parts are sensitive to electrostatic discharge (ESD). Always perform service work at an ESD-protected workstation or mat. If an ESD workstation or mat is not available, touch the sheet-metal chassis to provide a static ground before touching an ESD-sensitive assembly. Protect the ESD-sensitive assemblies by placing them in ESD pouches when they are out of the printer.

   Important:

   Make sure that all of the shipping materials (for example shipping tape) are removed from the replacement part prior to installation.

   Note:

   If the replacement part is a roller or pad, avoid touching the spongy part of it. Skin oils on the roller or pad can cause paper pickup and/or print-quality problems. HP recommends using disposable gloves when handling rollers or pads or washing your hands before touching rollers or pads.

3. To install an assembly, reverse the removal steps.

   Note:

   When applicable, special installation instructions are provided for an assembly at the end of the removal procedure. Always completely read the removal instructions and follow all special installation instructions.

Follow these steps to install the DIMM.

1. Insert the top edge of the DIMM (callout 1) in the holder (callout 2).

   Note:

   The DIMM is keyed and can only be inserted in the holder one way.

   Insert the DIMM

   

2. Make sure that the DIMM is fully installed in the holder (callout 1), and then rotate the bottom edge of the DIMM toward the holder (callout 2).

   Install the DIMM

   

3. Make sure that the DIMM snaps into the locking arms (callout 1).

   Snap the DIMM into place

   

Follow these steps to install the HD).

1. Align the end of the bracket (callout 1) with the slot in the chassis (callout 2), and then slide the HDD into the printer (callout 3) to engage the bracket with the chassis.

   Install the holder

   

2. Hold the HDD connector latch (callout 1) in the released position, and then rotate the HDD down and into the connector on the formatter to install it.

   Note:

   Make sure that the tab (callout 2) snaps into place, and that the HDD is securely installed.

   Release the HDD

   

Follow these steps to install the formatter cover.

1. Slide the cover onto the printer (callout 1) to install it.

   Note:

   Make sure that the tabs on the formatter cover align with the slots provided in the printer (callout 2). Tighten the two thumbscrews (callout 3).

   Tip:

   If needed, use the edge of a coin to turn the thumbscrews.

   Install the cover