Maintenance Procedures; Clean Carriage Underside - Oce Arizona 640 GT User Manual

Maintenance Procedures

Maintenance Procedures

Clean Carriage Underside

Introduction
The underside of the carriage must be cleaned daily. It may be necessary to clean it more
frequently if any of the following conditions exist:
• media has a high level of static charge
• full bleed printing
• media thickness value is incorrect (carriage is too high)
CAUTION
For cleaning areas of the printer that have uncured ink contamination use the following safety
equipment - nitrile gloves, a lab coat, and safety glasses with side shields to protect your eyes.
If a nitrile glove is contaminated with ink, discard it within a few minutes. Do not re-use gloves.
Equipment
• Poly Wipe cloths
• 99.9% Isopropyl alcohol
IMPORTANT
When you clean the carriage or printheads you may need a light to evaluate their condition. All
light sources emit varying amounts of UV (ultraviolet) light. UV light cures the UV-based ink
used in your printer. If the underside of the carriage is dark when examining the printheads or
the carriage underside, consider the kind of light source you use for the inspection. LED
flashlights and halogen lamps emit the most UV light, while tungsten and fluorescent produce
the least. Most Smart phones with a light source use LED lights. Regardless of the light source
used, always limit exposure of the printheads to the minimal time required (refer to Customer
Application Bulletin 55, " Minimize Exposure to UV Light When Inspecting Printhead Nozzles" for
more details).
CAUTION
Use only nitrile gloves that have been checked for chemical resistance. In general, a minimum
0.5mm or thicker nitrile glove is acceptable. Use the gloves one time only, and replace them
immediately if they are punctured or degraded. Do not re-use them if they are removed.
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. These
penetrating chemicals have no pigment so they are not visible; therefore just because you don't
have pigment on the glove or your skin doesn't mean that exposure has not occurred.
When to do
As part of the daily maintenance at the start of the day, or as needed, clean any ink that has
accumulated on the underside of the carriage.
180 Chapter 12 - Printer Maintenance
Océ Arizona 600 Series