How to Replace the Lamp Housing
Procedure
1.
Wipe both the top and bottom of the quartz window at the base of the UV
lamp-housing carriage bucket with an alcohol wipe. Also check the bottom
of the quartz window for any buildup of ink, which can be caused by
misting if the carriage height is incorrect. If you see any ink, it can be
removed by scraping with a razor blade or similar tool held at a 45-degree
angle.
2.
Place the lamp housing back into the carriage bucket.
3.
Replace the old filter that was removed from the top of the housing with a
new one.
4.
Rotate the interlock safety bracket back into position to lock the lamp
housing in place.
5.
Reconnect the UV power cable connector to the top of the UV lamp
housing.
6.
Repeat the above two sets of procedures to change the bulb in the other
lamp housing.
NOTE
We recommend that both UV Lamp bulbs be replaced at the same time to
ensure that the curing effect is balanced when printing in both directions.
7.
Replace the carriage guard onto the carriage base.
8.
Slide the maintenance station drawer gently to close it.
NOTE
A hard bump can break the meniscus vacuum in the ink lines and thus
allow air into the lines, which blocks the printhead nozzle until a purge is
performed.
9.
Unlock the AC power switch and power on the printer.
10.
Print a test image. If you see any gloss banding and if you only changed
one UV bulb, you may need to change the other bulb as well.
11.
Dispose of the old UV lamp bulbs according to local environmental
regulations.
How to Replace the Lamp Housing
Chapter 12 - Printer Maintenance
269
User Manual: Arizona (AZ) 440 GT, AZ 440 XT, AZ 460 GT, AZ 460 XT, AZ 480 GT, AZ 480 XT - Rev. B, 4/2013
