Appendix B Safety Information; Ozone Emission; Ul Standards For Ozone; Employer Responsibilities - NEC 870 - SuperScript B/W Laser Printer Online User's Manual

Appendix B: Safety Information
As you operate your NEC SuperScript 870
printer, please be aware of the following safety
considerations.

Ozone Emission

The corona assemblies found in laser printers
and photocopiers generate ozone gas (O
by-product of the electrophotographic process.
Ozone is only generated while the printer is
printing (while the coronas are energized).

UL Standards for Ozone

The only existing standard for ozone emissions
has been established by Underwriters
Laboratory (UL). All SuperScript family printers
meet this standard when shipped from the
factory to our customers.

Employer Responsibilities

Because ozone may be an irritant, various
regulatory agencies have established limits to the
amount of ozone to which employees may be
exposed. The employer is responsible for
providing a work environment that meets
recommended safety standards.
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Recommendations for Minimizing
Ozone Exposure
Almost all ozone concerns arise from abnormal
site or operating conditions. The following
conditions may generate an ozone complaint:
• Installation of multiple laser printers in a
) as a
confined area
3
• Extremely low relative humidity
• Poor room ventilation
• The exhaust port of the printer is directed
towards the face of personnel
• The existing ozone filter is in poor condition
• Long, continuous printing combined with any
of the above
Inspect your work environment for the operating
conditions listed above if you believe ozone
emissions are a problem in your area.
Some people may be ultra-sensitive to ozone odor.
If these situations are encountered, it is advisable
to position the printer away from the sensitive
user.