Ozone Filter Replacement - HP LaserJet II Serie Manual De Instrucciones

HP 33440/HP 33449 COMBINED SERVICE MANUAL
4-6. OZONE FILTER
REPLACEMENT
Ozone is a colorless gas generated by dl kser printers and photocopiers. It maybe perceived as
pungent to those sensitive to its odor. The Ozone Filter, a customer-replaceable item, removes
this odor. The fflter should be replaced every 50,000 pages. If the printer is being operated in a
confined environment, it may need to be replaced more ofien. Visual inspection will not show that
a filter is dim, page count is the only reliable indlmtor on which to base a decision to change a
filter.
On older HP 33440 printers, it maybe necessary to remove the Ozone Filter Mount to change
the filter. Until the printer is updated, it is HP's responsibility to change the Ozone Filter. On
these models, the Ozone Ffiter Mount can be upgraded to allow the filter to be changed without
removing the mount. Refer to Service Note 33440A-7 and to Chapter 6, Section 6-3.
Conditions that may generate ozone complaints are:
Multiple laser printers and/or copiers in a confined area.
Extremely low relative humidity.
Poor room ventilation.
Printer exhaust port directed toward the face of personnel.
Ozone Filter in poor condition (i.e., over 50,000 page count).
Long, continuous printing combined with any of the above.
Examine the printer's environment to determine if any of the preceding conditions
exist. It may be necessary for the customer to take corrective action to ensure the
printer's environment is free of conditions that may generate an ozone complaint.
To replace a user-replaceable filter:
1. The Ozone Filter is located in the housing on the inner right side of the printer (see
Figure 4-14).
2. Switch printer OFF and open the Top Cover Assembly.
3. Slide the filter out and replace it with a new filter.
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