7-4 OptionsController Board UpgradesRAM, 2400 dpi resolution, NEIT (includes Positive Film Technology), and internalIDE hard disk upgrades are controller board modifications. This section coversinstalling RAM memory and IDE upgrades; the 2400 dpi resolution is a factoryinstalled upgrade.A controller board upgrade installation involves accessing the controller board,installing the upgrade(s), and reassembling the printer.Static electricity can destroy electronic components, such as your controller board,SODIMMs, firmware, and the hard disk. Use approved anti-static procedures whenworking with the controller board and upgrades.Removing the Controller Board Panel1. Make sure the printer displays a PLEASE WAIT or READY/IDLE message.Then, turn off the printer and disconnect the power cord and all interfacecables.2. Remove any media in the multipurpose feeder and output tray.3. Loosen the two screws on the back of the printer that secure the controllerboard access panel to the printer (fig. 7.5).Fig. 7.5 Loosen Panel Screws Fig. 7.6 Remove Panel4. Slide the panel toward the back of the printer until it stops. Pull the panel downand out to remove it from the printer (fig. 7.6).