Image Quality
Xerox Internal Use Only
Phaser 3320 and WorkCentre 3315/3325
Service Manual
3-23
Test Prints
The Test Pattern pages are available for troubleshooting print quality defects and to confirm proper
printer operation. Printing the Test Pattern is useful for stimulating asynchronous (dynamic) events
related to the print process, or as a test for media path and media related problems. Some other key
features of test prints:
•
Is the only diagnostic utility to exercise the entire print cycle.
•
They are isolated from the operating system, and are run from firmware.
•
Captures static or dynamic events.
•
Helps to isolate events that cause print artifacts or prevent printing.
Test Pattern 1 and Test Pattern 2 are essentially the same but for different media sizes (Letter/A4). The
test print provides a variety of different line styles in both process and cross-process directions. The
pattern is used to check registration, dot size, and image density.
Pattern
Number
Description
Purpose
1
Letter page size test
pattern.
Light density uniformity, deletions, lines, bands, streaks,
smears, solid area reproducibility, motion quality (LSU).
2
A4 page size test pattern.
Light density uniformity, deletions, lines, bands, streaks,
smears, solid area reproducibility, motion quality (LSU).
Test Print
WC 3315/3325
A4 (LEF Only)
LEAD EDGE
Test Print
WC 3315/3325
8.5x11 (LEF Only)
LEAD EDGE
s3320-120
