Xerox DocuColor 7000AP, Дополнительное руководство, Страница: 5 / 52

DocuColor 7000AP/8000AP Decurler Adjustment
1
Decurler Adjustment
Decurler Overview
KEY POINT:
Please read
all
the Decurler information before using
the Decurler E Table Settings (E1 - E6) 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 than low toner coverage jobs. The system tries to
reduce this by using mechanical devices within the paper path
called Decurlers.
Paper curl is caused by many variables, including, but not in any
particular order:
•
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 and 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.
• Paper Type A, B, C, and D settings: Preset Decurler settings,
which are manually selected as an alternative to the System
Default setting. See “Decurler Paper Type A - D Settings” on
page 3.
KEY POINT: While paper curl is caused by many variables, it is
important to understand that the preset and custom Decurler
profile settings use lookup tables for curl control that are based on
the job’s percentage of toner area coverage and the printer’s
humidity values, only.