Toshiba digital copiers Service Manual page 9

Precautions
• Never enter an IP address in Network Setup.
Only the network administrator should enter an IP address on a network device.
Assigning an incorrect IP address to the GA-1121 can cause unpredictable errors on any
or all devices.
• Follow standard ESD (electrostatic discharge) precautions while working on the internal
components of the copier.
Static is always a concern when servicing electronic devices. It is highly unlikely that the
area around the copier is static-free. Carpeting, leather-soled shoes, synthetic clothing
fibers, silks, and plastics may generate a static charge of more than 10,000 volts. Static
discharge is capable of destroying the circuits etched in silicon microchips, or
dramatically shortening their life span. By observing standard precautions, you may avoid
extra service calls and save the cost of a new board.
When possible, work on a ground-connected antistatic mat. Wear an antistatic
wristband, grounded at the same place as the antistatic mat. If that is not possible:
• Attach a grounding strap to your wrist. Attach the other end to a good ground.
• When you remove an electronic component, place it into an antistatic bag
immediately. Do not walk across a carpet or vinyl floor while carrying an unprotected
board.
• Leave new electronic components inside their antistatic bags until you are ready to
install them.
• When you unpack the electronic components, touch a metal area of the copier to
discharge the static on your body. Place the components on a grounded antistatic
surface, component-side up.
• Avoid flexing a printed circuit board and handle it by opposing edges (not corners) only.
• Be careful of sharp edges when handling metal parts of the GA-1121 assembly or copier.
• Never set a cup of coffee—or any liquid—on or near any components or the copier.
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