HP LaserJet 4v/mv Service Manual - Page 97

Removal & 6 Replacement User Installable Accessories 1 2 3 20 4 45 Memory Upgrade CAUTION SIMMs and the Formatter PCA can be damaged by small amounts of electro-static discharge (ESD). Wear an anti-static wrist strap. 1 With the printer OFF and unplugged, loosen the two captive screws and remove the Formatter PCA. 2 Remove the SIMM from the anti-static package. Hold the board with your forefingers on the side edges and your thumbs against the back edge, so the notch on one end is on the right and the metal teeth face toward the SIMM slot (match the positioning shown in frame 2). 3 Insert the board firmly into the SIMM slot at about a 20-degree angle. Use closest open slot toward the back of the printer. 4 Rotate the SIMM toward the back of the printer to a 45-degree angle until it clicks into the metal locking tabs. If it is properly seated, it will not lift away from the slot. (To remove a SIMM, you must first release the metal locking tabs.) 5 Slide the printer Formatter PCA back into the printer and tighten the two screws. 6 Re-attach any cables and the power cord, then switch the printer ON and print a self-test to verify the new memory is available. If the SIMM is not recognized, turn the printer OFF and reseat the SIMM. If an error occurs, refer to "Service and Error Messages" in Chapter 7. Removal and Replacement 6-5