6 Before Using the Scanner1. Important Safety InstructionsTo ensure the safe operation of this scanner, be sure to read the safety warningsand precautions described below.Installation LocationThe performance of this scanner is affected by the environment in which it isinstalled. Make sure that the location where the scanner is installed meets thefollowing environmental requirements.• Provide adequate space around the scanner for operation and maintenance.• If scanned documents are ejected to the back of the scanner, provideadequate space behind the scanner for documents ejected after beingscanned. (See “Document Eject Tray,” on p. 23.)• Avoid installing the machine in direct sunlight. If this is unavoidable, usecurtains to shade the scanner.• Avoid locations where a considerable amount of dust accumulates.• Avoid warm or humid locations, such as in the vicinity of a water faucet,water heater, or humidifier, and avoid locations where the fumes fromammonia, paint thinner, or other volatile chemicals may be present.• Avoid locations where ammonia gas is emitted.• Avoid locations near volatile or flammable materials, such as alcohol orpaint thinner.• Avoid locations that are subject to vibration.• Avoid exposing the scanner to rapid changes in temperature. If the room inwhich the scanner is installed is cold but rapidly heated, water droplets(condensation) may form inside the scanner. This may result in a noticeabledegradation in scanning quality.17.7" (450 mm)when the documentfeed tray anddocument feed trayextension areclosed.At least 3.9" (100 mm)when eject tray is empty.29.5" (750 mm)when the documentfeed tray anddocument feed trayextension areopen.