Stratasys J720, User Manual, Page: 122 / 159

Stratasys J750/J735/J720 User Guide 4 Operating and Maintaining the Printer
DOC-08040 Rev. R 4-96
17. In the Maintenance Counters screen, click Reset and then Close (see Figure
4-138 on page 4-93).
Replacing the Odor Filter
If the printer exhaust is not connected to an external ventilation system, a built-in
activated-carbon filter removes odors from printing materials. This filter should be
replaced regularly (as necessary) to keep your working environment pleasant.
This is normally done during the preventive-maintenance service visit.
If the printer exhaust is connected to an external ventilation system, the odor
filter is not needed and should be removed from the printer.
Odor filter removal improves heat expulsion and system cooling.
Replacing the UV Lamps
The UV lamps used for curing models have a long, but limited, working life. You
can test and adjust their effective power with the UV Calibration wizard (see
"Testing and Calibrating the UV Lamps" on page 4-73). If you need to replace a
UV lamp bulb or UV reflector, follow these instructions:
To replace the UV lamp bulb or UV reflector:
1. Make sure the printer is in offline mode.
Figure 4-141 Offline mode indicator (red)
The online/offline button at the bottom of the printer interface should be red. If
not, click it to switch the printer to offline mode.
Warning
Before continuing, make sure that the safety interlock is not defeated, and that
the UV lamp is not hot.