How To Perform Printhead Maintenance - Oce Arizona 440 GT User Manual

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

How To Perform Printhead Maintenance

Introduction
The Maintenance Station is located below the carriage. Printhead
Maintenance takes place while the carriage is parked. The station is
covered by a sliding drawer that has an open grid in the center that allows
any waste ink to drip down through the station and into the waste tray.
When you perform printhead maintenance, any excess ink and associated
debris are removed from the nozzles with the result that ink drops can jet
properly when the nozzles are clear.
Ink fill is disabled when the maintenance station drawer is open. No more
than 4 purges can take place (minimum of 10 seconds between purges)
without closing the cover plate and allowing the reservoirs to refill.
Multiple purges are not required.
NOTE
The nozzle plate on the printhead has a non-wetting coating - contact with
this surface may affect the performance of the printhead. Do not wipe the
nozzle plate with anything other than the suction-head (or the supplied
swabs when following the swab procedure) as this can damage the
nozzles and impair performance.
Purpose
To clean the nozzles of the printheads and thus ensure better image quality
and avoid banding.
NOTE
The complete Printhead Maintenance procedure is documented in a video
production that illustrates all of the steps involved and also explains why
it is important to perform regular maintenance. The video can be viewed
from the main Customer Support page and is also available to download:
http://dgs.oce.com/.
When to do
Maintenance occurs at the start of the day (after the printer has warmed
up) or when necessary (misfiring nozzles, banding in image, etc.).
How To Perform Printhead Maintenance
Chapter 12 - Printer Maintenance 227