Oce Arizona 640 GT User Manual page 184

How To Perform Printhead Maintenance
Ink must be at the operating temperature of at least 40° Centigrade (104° Fahrenheit) before you
perform printhead maintenance. The Job Control module displays the ink temperature. If the
temperature is low, activate the ink heater by clicking the icon and then monitor the temperature
display.
CAUTION
Safety glasses with side shields, a protective apron, and nitrile gloves must be worn when
performing maintenance.
UV inks may cause sensitization by skin contact. If any ink contacts your skin, immediately
wash with water and soap and rinse thoroughly. If skin irritation continues, consult a doctor.
Avoid contact with the eyes and skin. Wear a long-sleeved shirt or other covering when
performing printhead maintenance.
Always wear Nitrile gloves and not Latex gloves when working with UV curing inks. Chemicals
in UV ink begin to permeate nitrile gloves in less than 10 minutes. While this action may not be
visible, changing contaminated gloves should occur every few minutes.
The underside of the UV lamps may be hot, avoid touching them. Also, be aware that the
carriage moves up and down during printhead maintenance and there is a crushing hazard if
your hand or arm are placed in the area above the three switches.
IMPORTANT
Do NOT press up too hard on the printhead while you swipe it with the suction-head as this can
dislodge the printhead and require a service call to re-seat the printhead.
Maintenance Station Switches:
There are three switches inside of the maintenance station . They can be operated in any order.
For example, you can press the middle switch to raise the carriage to remove debris from the
underside of the carriage even when a purge isn't required.
1. Switch 1 to purge ink
2. Switch 2 to raise carriage
3. Switch 3 to activate suction pump
[122] Maintenance Station Switches
Procedure
1.
Verify that the ink temperature is at least 40° Centigrade (104° Fahrenheit) before you begin
printhead maintenance.
2.
Slide the drawer out from under the carriage to reveal the maintenance station.
184 Chapter 12 - Printer Maintenance
Océ Arizona 600 Series