Canon Arizona 6100 XTHF Mark II Series, User Manual, Page: 172 / 234

How to Change a UV Lamp Bulb
Introduction
The printer uses two UV lamps, one on each side of the carriage, to cure the UV ink during
printing. The bulbs in these UV lamps have a limited lifetime and must be replaced by the
operator if they fail or when they can no longer cure the ink at maximum available power.
When to do
Although the minimum functional life of the UV lamp bulbs is 1000 hours, there are factors that
can reduce the expected life. Operational practices, such as turning the lamps off and on
frequently, using them at high intensity all of the time, or touching the bulbs with your fingers,
can shorten their life. Canon recommends that both UV Lamp bulbs be replaced at the same time
to ensure that the curing effect is balanced when printing in both directions. In the case of a
premature failure or accidental breakage of one lamp, the operator can decide to replace only one
lamp but should confirm image consistency after the replacement. Uneven curing can cause
gloss banding in the printed image.
NOTE
The Flatbed Settings icon on the printer interface allows the operator to control the power
output of each UV lamp independently. To extend lamp life, use the lowest setting that provides
adequate curing for a particular media. However, avoid handling media with insufficient curing
as partially cured UV ink on your skin can cause irritation and sensitization.
Note Attention Caution
CAUTION
The UV lamps and the carriage may be hot if the printer has been active. Avoid touching the
lamp assembly until it is cool.
CAUTION
These UV lamp bulbs contain mercury, and if they are broken the vapor is toxic if inhaled. The
lamp bulbs must be disposed of according to local environmental regulations.
How to Access the Lamp Housings
CAUTION
Wear cotton or nitrile gloves when handling UV lamp bulbs. Avoid bare skin contact with the
UV lamp bulbs. When heated, compounds from the skin can form permanent etching on the
surface of the UV bulb. A contaminated bulb may fail prematurely.
The housings for the two UV lamps are located on each side of the carriage. When you view the
printer from the end where the Start button is located, the Right lamp is located on the Home side
where the carriage parks when it is not printing. To replace bulbs select
UV Bulb replacement
from the Maintenance Tools menu in the Maintenance tab. Move the carriage for the UV bulb you
want to change. Reset the counter after you change the bulb.
How to Change a UV Lamp Bulb
172 Chapter 9 - Printer Maintenance