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Maintaining the Equipment
4-4 May 2002
Replacing the (Round) Balance Filters
IMPORTANT: The balance filters are made of glass and are expensive to replace.
They are not included in the product warranty or service contract.
Use care when handling the balance filters.
Wear white cotton gloves for this procedure.
It is not necessary to power down the scanner before changing the balance filters.
1. Open the lamp-and-filter-access door (see page 4-2 for the location of the
lamp-and-filter-access door).
2. Loosen the thumbscrews on the lamp cover and pull the cover straight out.
When you remove the cover, the safety switch is released, removing power to
the lamp socket.
CAUTION: Wait at least five minutes for the lamp to cool.
3. Position the red balance-filter selection handle of the balance-filter assembly
in the center.
CAUTION: Use care with the IR filter. It is not secured in place. (For more
information about the IR filter, see Replacing the (Square) IR
Filter on page 4-5.)
4. Hold the red handle and pull the assembly straight out from the scanner.
5. Clean the filters with the camel’s-hair brush or, if needed, replace the filter(s)
as described in the next step.
NEG
POS
3 screws
red balance-filter assembly handle
balance-filter
assembly