X-Rite 890 Operation Manual page 41

Below is a list of typical error messages that can appear on your instrument's
display screen. If any error messages listed, or not listed should appear, make
a note of it and take the appropriate steps to try to correct it. If an error
message is consistently displayed, contact X-Rite or an authorized service
center.
Message
INVALID READING -
PLEASE RE-READ!
or
UNRECOGNIZABLE
STRIP
or
BUFFER OVERFLOW
(during measurement)
Reason Possible Cause
Unit did not Wrong strip selection.
recognize strip.
Strip did not have a
30.5mm (1.2") leader
before first target.
Strip not inserted in the
correct direction.
Unit needs calibration
Measurement region
not aligned with center
diamond, or strip not
tracking properly.
One or more
measurement patches
are cloudy, have
excessive gradients, or
have flecks.
NOTE: If first read causes invalid error message, try
re-reading strip again. Measurement tolerances across the
patch are opened slightly on second read.
Motor drive roller
slippage due to restraint
or obstruction, or
contamination of rollers
from reading wet strips.
Lamp failure (weak or
bad).
Error Messages
Solution
Select correct format.
Use strip with leader or refer
to the Control Strip & Balance
Print Format Guide for
leaderless strip insertion.
Refer to your Control Strip
and Balance Print Format
Guide for insertion direction.
Calibrate instrument, Sec. 2.
Make sure measurement
patches are centered with
diamond and center line.
Usually setting the paper
guides to the numbers
indicated on the display takes
care of the problem. Make
sure strip feed straight through
unit and does not curve toward
one side.
Process and then measure a
new strip.
Remove restraint/obstruction
or dry drive rollers with air.
Perform transmission
calibration to test lamp, Sec. 2.
A P P E N D I X B
B-1