Environmental Specifications; Ventilation And Air Conditioning - HP DESIGNJET L26500-Serie Handbuch Zur Vorbereitung Des Aufstellungsorts

Environmental specifications

These environmental conditions must be kept within the specified ranges to ensure the correct operation
of the printer. Failure to do so may cause print-quality problems or damage sensitive electronic
components.
Table 2-2 Printer environmental specifications
Relative humidity range for best print quality
Temperature range for best print quality
Temperature range for printing
Temperature range when not in operation
Temperature gradient
Maximum altitude when printing
NOTE:
The printer must be kept indoors.
NOTE:
If the printer or ink cartridges are moved from a cold location to a warm and humid location,
water from the atmosphere can condensate on the printer parts and cartridges and can result in ink
leaks and printer errors. In this case, HP recommends that you wait at least 3 hours before turning on
the printer or installing the ink cartridges, to allow the condensate to evaporate.
In addition to controlling the temperature, humidity, and temperature gradient, there are other
environmental conditions that must be met during site preparation.
Do not install the printer where it will be exposed to direct sunlight or a strong light source.
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Do not install the printer in a dusty environment. Remove any accumulated dust before moving the
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printer into the area.

Ventilation and air conditioning

As with all equipment installations, to maintain comfortable ambient levels, air conditioning or
ventilation in the work area should take into account the printer's heat dissipation. Maximum power
dissipation is 4.8 kW (16.4 kBTU/h).
Air conditioning and ventilation should meet with local environmental, health and safety (EHS)
guidelines and regulations. Consult your usual air conditioning or EHS specialist for advice on the
appropriate measures for your location.
For a more prescriptive approach to adequate ventilation, the ANSI/ASHRAE (American Society of
Heating, Refrigerating and Air-Conditioning Engineers) 62.1-2007 Ventilation for Acceptable Indoor
Air Quality could be referred to. As an example, a minimum exhaust rate of 2.5 L/s.m² (0.50 cfm/ft²)
of fresh make up air for "copy, printing rooms" is recommended.
NOTE: The ventilation and air conditioning units should not blow air directly onto the printer.
NOTE: Maintaining positive air pressure in the print production room will help prevent dust from
entering the room.
ENWW
20–80%, depending on substrate type
18 to 25°C (64 to 77°F), depending on substrate type
15 to 30°C (59 to 86°F)
-25 to +55°C (-13 to +131°F)
no more than 10°C/h (18°F/h)
3000 m (10000 ft)
Physical space requirements
3