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DocuColor 5000AP Administrator Guide
3-26
3. Profiles
Decurler Overview
TIP: Please read all the Decurler information before using the
Custom Decurler Profile procedure.
When paper is exposed to heat, the paper loses moisture and
curls toward the heat source. High toner coverage jobs tend to
curl more due to the toner plastification effect on the paper
surface. The system tries to reduce this by using mechanical
devices within the paper path called Decurlers.
Paper curl is caused by many variables, including:
• The weight of the paper and whether it is coated or uncoated.
• The amount of dry ink/toner and the area being covered on a
sheet: the heavier the coverage, the greater the tendency to
curl.
• How the paper is loaded in the tray. Make sure you load the
paper as instructed on the ream wrapper.
• The atmospheric conditions of the room where the paper is
stored, especially those related to humidity and temperature.
• The atmospheric conditions of the room where the printer is
located, especially those related to humidity and temperature.
• The heat generated during the fusing processes.
Your system is designed with several automated settings to
control curl. When using these settings the machine automatically
sends paper through the proper Decurler:
• System Default: Automatically determines the amount of
pressure needed at the different decurlers in order to reduce
the output curl of the paper.
• A, B, C, and D settings: Preset Decurler settings.
With some print jobs, the output prints still may be curled more
than you desire even after using the Decurler A-D Settings. In
those cases, use the Custom Decurler Profile feature to
compensate for paper curl in your prints. Custom Decurler Profile
settings are based on job type and image density ratio. These
settings are manually entered.
NOTE: If a decurler profile is changed, it remains at that setting
until changed again manually. As an example, if you decide to use
the B decurler setting, the setting will remain at B until you change
it to another setting.
NOTE: It is important to remember that a successful decurler
setting used today may not be the same setting that you would
use on another day. This is especially relevant if the room in which
printer is located experiences changes in temperature and
humidity.