"Photographic Quality Assurance," "Electronic Imaging," and "Aerial
Pages 2-29 through 4-1.
Learning Objective (continued) :
Recognize factors that may affect
a process-control chart.
IN ANSWERING QUESTION 3-1 THROUGH 3-4,
REFER TO FIGURE 3A.
What segment represents a jump?
What segment represents a random
What segment represents a trend?
What segment represents a run?
You have just processed a control
strip and the high-density reading
plots above the upper-control
What action should you take
Check the calibration
of the densitometer
Conduct a complete
Stop the process and
change the chemicals
Review the chemical-mixing
procedures used in a color process-
What is the recommended temperature
for storing color control strips?
68°F to 75°F
50°F to 68°F
0°F to 32°F
0°F or below
The manufacturer processes the
reference strip that is included
with each package of color control
You are establishing a color
processing five control strips, you
read and average your data.
readings exceed the aim values
provided by the manufacturer but
fall within the action limits.
What action should you take?
Null the densitometer
Arbitrarily adjust the data
so it falls on the mean
3. Apply the adjustment tolerances
provided by the manufacturer
Disregard the data and process,
and average five more
Advanced Photography Course