Interpreting the Service Configuration Plot

Analyzin￿ the Bar Pattern

The configuration plot has special built8in diagnostic features. It includes seven bars printed along the top that enable you to detect print8quality problems.

First Four Bars

Use the first four bars (from left to right) to detect

DProblems with nozzle firing direction

DMissing nozzles

These bars are a series of straight horizontal lines, four pixels apart. Different nozzles are used to create each of the four bars.

Use a 10X magnifier to look at the patterns. Perfect patterns should be parallel lines equally spaced. Some slight errors in direction (meaning the ink dots are not being fired straight) are due to nozzle imperfections and cannot be fixed. Others may be caused by nozzle contamination. You can sometimes correct these by cleaning the nozzles (￿ User's Guide).

Fifth and Sixth Bars

Use the fifth and sixth bars to detect

DBanding

DProblems with nozzle firing direction

DMisalignment between the cartridges

In the following two diagrams, F denotes a dot and f denotes a white space. The fifth bar is a 25% area fill pattern that looks as follows,

FfFfFfFfFfFfF fffffffffffff FfFfFfFfFfFfF

The sixth bar is also a 25% area fill pattern that looks as follows:

FfFfFfFfFfFfF fffffffffffff fFfFfFfFfFfFf

These bars should look solid gray.

Seventh Bar

Use the seventh bar to detect misalignment between the cartridges.

This bar is a series of vertical lines, 8 pixels apart. The lines should be straight with a deviation of no more than 2 mils.

C3187890000

Removal￿and￿Replacement 8825￿