Brother International IntelliFax-2600 Service Manual - Page 33

DISASSEMBLY/REASSEMBLY, Safety Precautions

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1. DISASSEMBLY/REASSEMBLY Safety Precautions To prevent the creation of secondary problems by mishandling, observe the following precautions during maintenance work. (1) Unplug the power cord from the power outlet before replacing parts or units. When having access to the power supply, be sure to unplug the power cord from the power outlet. (2) When servicing the optical system of the laser printing unit, be careful not to place screwdrivers or other reflective objects in the path of the laser beam. Be sure to take off any personal accessories such as wrist watches and rings before working on the printer. A reflected beam, though invisible, can permanently damage your eyes. (3) If the equipment has been printing, allow the heat-fixing unit sufficient time to cool down before starting maintenance jobs. It is HOT! (4) Be careful not to lose screws, washers, or other parts removed for parts replacement. (5) Do not remove gears from the document feed roller ASSY or ejection roller ASSY if at all possible. Once removed, they will become unusable and new gears will have to be put back in. (6) When using soldering irons and other heat-generating tools, take care not to damage the resin parts such as wires, PCBs, and covers. (7) Before handling the PCBs, touch a metal portion of the equipment to discharge static electricity; otherwise, the electronic parts may be damaged due to the electricity charged in your body. (8) When transporting PCBs, be sure to wrap them in conductive sheets such as aluminum foil. (9) Be sure to reinsert self-tapping screws correctly, if removed. (10) Tighten screws to the torque values listed on the next page. (11) When connecting or disconnecting cable connectors, hold the connector bodies not the cables. If the connector has a lock, always slide the connector lock to unlock it. (12) Before reassembly, apply the specified lubricant to the specified points. (Refer to Section 2 in this chapter.) (13) After repairs, check not only the repaired portion but also that the connectors and other related portions function properly before operation checks. IV - 1

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IV
- 1
1.
DISASSEMBLY/REASSEMBLY
±
Safety Precautions
To prevent the creation of secondary problems by mishandling, observe the following precautions
during maintenance work.
(1)
Unplug the power cord from the power outlet before replacing parts or units.
When having
access to the power supply, be sure to unplug the power cord from the power outlet.
(2)
When servicing the optical system of the laser printing unit, be careful not to place screwdrivers
or other reflective objects in the path of the laser beam.
Be sure to take off any personal
accessories such as wrist watches and rings before working on the printer.
A reflected beam,
though invisible, can permanently damage your eyes.
(3)
If the equipment has been printing, allow the heat-fixing unit sufficient time to cool down before
starting maintenance jobs.
It is HOT!
(4)
Be careful not to lose screws, washers, or other parts removed for parts replacement.
(5)
Do not remove gears from the document feed roller ASSY or ejection roller ASSY if at all
possible.
Once removed, they will become unusable and new gears will have to be put back in.
(6)
When using soldering irons and other heat-generating tools, take care not to damage the resin
parts such as wires, PCBs, and covers.
(7)
Before handling the PCBs, touch a metal portion of the equipment to discharge static electricity;
otherwise, the electronic parts may be damaged due to the electricity charged in your body.
(8)
When transporting PCBs, be sure to wrap them in conductive sheets such as aluminum foil.
(9)
Be sure to reinsert self-tapping screws correctly, if removed.
(10)
Tighten screws to the torque values listed on the next page.
(11) When connecting or disconnecting cable connectors, hold the connector bodies not the cables.
If the connector has a lock, always slide the connector lock to unlock it.
(12) Before reassembly, apply the specified lubricant to the specified points.
(Refer to Section 2 in
this chapter.)
(13) After repairs, check not only the repaired portion but also that the connectors and other related
portions function properly before operation checks.