1 2LED displayNo. Item1 Service switch2 LED displayIf the LED display hangs on a code other than 00, one or more diagnostic tests may have failed. Look up the diagnostic code in“Table 1: Causes and solutions when printer does not print” on “If the printer does not print” on page 56 to determine thetroubleshooting actions that you should take.Accessing the imagePRESS ServerAlways use the following procedure to disconnect the imagePRESS Server from the printer and open the unit for inspection andservice.IMPORTANT:Make sure that you attach an ESD grounding wrist strap and follow standard ESD (electrostatic discharge) precautionsbefore following this procedure. For details, see“Precautions ” on page 3.■ To access the imagePRESS Server1. Make sure that the imagePRESS Server is not receiving, processing, or printing any jobs.2. Make sure that the printer is not in use, and power off the printer using the main power switch on the front.Wait for the printer and the imagePRESS Server to power off completely.3. Move the imagePRESS Server power switch to the OFF (O) position.4. Remove all external cables from the imagePRESS Server connectors.5. Remove the imagePRESS Server from the printer.For detailed information about removing/installing the printer, see “Installing the imagePRESS Server” on page 69.6. Remove the two screws that secure the cover of the imagePRESS Server to the chassis (see Figure below ).Set aside the screws so that you can replace them later.7. Raise the cover and slide it toward the connector panel of the chassis to remove it.Set aside the cover so that you can replace it later.The imagePRESS Server internal components are now accessible.3. REPLACING PARTS13