Read Sharp AR-PE1 (serv.man9) Service Manual online
viii
Preface
7.
Use care when handling parts of the Print Controller X4(AR-PE1) as some edges on the
unit may be sharp. For example, be careful when:
unit may be sharp. For example, be careful when:
• Accessing the CD-ROM and ZIP drives (keep the drive door closed when not in use)
• Plugging in cables at the back of the unit
• Using the power switch to power on/off the unit
8.
Follow standard ESD (electrostatic discharge) precautions while working on the internal
components of the Print Controller X4(AR-PE1).
components of the Print Controller X4(AR-PE1).
Static is always a concern when servicing electronic devices. It is highly unlikely that the
area around the copier and the Print Controller X4(AR-PE1) 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.
area around the copier and the Print Controller X4(AR-PE1) 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
grounding strap, grounded at the same place as the antistatic mat. If that is not possible:
grounding strap, 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 unpack the Print Controller X4(AR-PE1) from the carton for the first time,
touch a metal area of the copier to discharge the static on your body.
• Before you remove the Print Controller X4(AR-PE1) side panel and before you handle
internal components, touch a metal part of the Print Controller X4(AR-PE1).
• Leave new electronic components inside their antistatic bags until you are ready to
install them. When you remove components from an antistatic bag, place them on a
grounded antistatic surface, component-side up.
grounded antistatic surface, component-side up.
• 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.
board.
9.
Handle printed circuit boards by their edges only, but avoid touching the contacts on the
edge of the board.
edge of the board.
10.
Never set a cup of coffee—or any liquid—on or near the Print Controller X4(AR-PE1) or
the copier.
the copier.
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