5/2011
3-21
Phaser 4600/4620 Printer Service Manual
Test Prints, IQS 1
Image Quality
Revision - Xerox Internal Use Only
Test Prints
Table 1 describes the test patterns and the purpose for which they should be used to identify
image quality defects.
Test Print 1, 2
TP 1 and 2 provides a variety of different line styles in both process and cross-process direc-
tions. The pattern is used to check registration, dot size and image density.
Figure 1 Test pattern 1, 2
IQS 1 Solid Area Density
Documents
Test pattern: 82P524 and the solid area density scales, 82E8230 (SIR 542.00) or 82P448 (SIR
494.00).
The Phaser 4600/4620 is ISO11798 compliant with archival paper. Image density is no less
than 90% across core media list. Media must fix toner well enough to pass taping test. Using a
500g weight, after rubbing the test pattern 5 times, calculate the ratio of pre- and post- test data
(density).
After taping test, the image density of black area of test pattern should be higher than 80% of
its original density in standard paper under N/N environmental condition.
Specification
Make a copy of the test pattern. Compare the copy with the solid area density scale. The den-
sity of the 1.0 areas on the copy of the test pattern, must be as dark or darker than the 0.8 ref-
erence on the solid area density scale.
Corrective Action
Go to the IQ1 Image Quality Entry RAP.
Table 1 Internal test patterns
Number Description Purpose
1 S600 Pattern (Letter), Figure 1. Light density uniformity, deletions, lines,
bands, streaks, smears, solid area reproduc-
ibility, motion quality (LSU).
2 S600 Pattern (A4), Figure 1. Light density uniformity, deletions, lines,
bands, streaks, smears, solid area reproduc-
ibility, motion quality (LSU).
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