4. Precautions for Dis/Reassembly
•Be sure to unplug the copier from the outlet before attempting to service the copier.
•The basic rule is not to operate the copier anytime during disassembly. If it is absolutely necessary to run the copier with its covers removed, use care not to allow your clothing to be caught in revolving parts such as the timing belt and gears.
•Before attempting to replace parts and unplug connectors, make sure that the power cord of the copier has been unplugged from the wall outlet.
•Be sure to use the Interlock Switch Actuating Jig whenever it is necessary to actuate the Interlock Switch with the covers left open or removed.
•While the product is energized, do not unplug or plug connectors into the circuit boards or harnesses.
•Never use flammable sprays near the copier.
•A used battery should be disposed of according to the local regulations and never be dis- carded casually or left unattended at the user’s premises.
•When reassembling parts, make sure that the correct screws (size, type) and toothed washer are used in the correct places.
5. Precautions for Circuit Inspection
•Never create a closed circuit across connector pins except those specified in the text and on the printed circuit.
•When creating a closed circuit and measuring a voltage across connector pins specified in the text, be sure to use the GND wire.
6.Handling of PWBs During Transportation/Storage
• During transportation or when in storage, new P.W. Boards must not be indiscriminately removed from their protective conductive bags.
• Do not store or place P.W. Boards in a location exposed to direct sunlight and high tem- perature.
• When it becomes absolutely necessary to remove a Board from its conductive bag or case, always place it on its conductive mat in an area as free as possible from static elec- tricity.
• Do not touch the pins of the ICs with your bare hands.
• Protect the PWBs from any external force so that they are not bent or damaged.
During Inspection/Replacement
•Avoid checking the IC directly with a multimeter; use connectors on the Board.
•Never create a closed circuit across IC pins with a metal tool.
•Before unplugging connectors from the P.W. Boards, make sure that the power cord has been unplugged from the outlet.
•When removing a Board from its conductive bag or conductive case, do not touch the pins of the ICs or the printed pattern. Place it in position by holding only the edges of the Board.
•When touching the PWB, wear a wrist strap and connect its cord to a securely grounded place whenever possible. If you cannot wear a wrist strap, touch a metal part to dis- charge static electricity before touching the PWB.
•Note that replacement of a PWB may call for readjustments or resetting of particular items.
7. Handling of Other Parts
•The magnet roller generates a strong magnetic field. Do not bring it near a watch, floppy disk, magnetic card, or CRT tube.