Density Uniformity Adjustment; Adjusting Automatic Density Uniformity - Xerox Versant 3100 Press User Manual

Maintenance
The Full Width Array improves operator and press productivity because it replaces lengthy
manual procedures for press print engine adjustment, saves time from scanning targets
with an external spectrophotometer, and uses simple steps that previously required a
service engineer for some procedures. The Full Width Array can also be used to save
time by automatically scanning and measuring targets when performing print server
calibration and profiling initiated from the print server. Refer to the System Administration
Guide and Stock Library Manager on the print server for more information.
Tip
Before running color-critical jobs, run the Density Uniformity Adjustment procedure and
use the calibration features at the print server to ensure that your press maintains the
best image quality with less or no down time.
Note
Refer to your print server user documentation when performing the calibration workflow
of the print server in conjunction with the print engine. Alignment and registration
adjustments are performed at the print server.

Density Uniformity Adjustment

Density Uniformity Adjustment is done to ensure even toner density across each page.
The press prints density test patterns, scans them and automatically corrects for variations
by resetting software controls. Uniformity is important for high area coverage applications
where density drift from edge to edge can impact image quality. Density Uniformity
Adjustment saves time because without it a service call is required to make this type of
adjustment.
Run Density Uniformity Adjustment to correct inboard to outboard density uniformity
defects; for example, the image quality is lighter (faded) or heavier (thicker) on the left
or right sides of the output (inboard / outboard). Also run Density Uniformity Adjustment
after xerographic components are replaced.
Note
Density Uniformity Adjustment does not require system administrator access and may
be performed by the operator from the press control panel.

Adjusting Automatic Density Uniformity

1. Press the Tools button on the control panel.
2. Select Full Width Array Density Uniformity Adj.
3. Select the Paper Supply button.
4. Select a tray containing 11 x 17 in. (A3) or 12 x 18 in. (SRA3) paper.
5. Select Save.
You may have to wait a few minutes while the Full Width Array gets ready.
6. Select Start.
The press prints the test targets, measures them, and automatically adjusts the toner
density for consistent application across the page.
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Xerox Versant 3100 Press
User Guide