Kodak DryView 8300 Service Bulletins page 59

Running a Daily QC Test
This test must be run daily before clinical mammograms are run, to ensure quality output. Values
obtained from the test are plotted on the Laser Imager QC Chart for comparison with the film
parameter values established in the baseline test.
1. Apply power to the 8600 and allow it to warm to READY, as indicated on the local panel. (The
8600 will print a film calibration sheet, indicating that its Automatic Image Quality Control system
is functioning.)
2. Print a QC Step Wedge film.
3. Use a densitometer to read the designated steps on the test film. (Read at the center of each
step.)
4. Record the date on the control chart. Then plot the DD, MD, and LFMD values in the appropriate
column on the chart.
5. Determine if any of the values exceeds the upper or lower control limits for the parameter.
Note
The numbers above and below the center lines on the chart indicate the control limits. For
example, for DD or MD, 0.10 above or below the center line is approaching the limit, but
acceptable. However, 0.15 above or below is not acceptable.
6. If the values did not exceed a control limit, examine the chart and see if there is a trend which
suggests possible future problems. (This could be, for example, three or more data points for DD,
MD or LFMD in succession moving upward or downward.) If the data points have not exceeded
the limits, clinical mammograms can continue to be run. But continue to monitor the process.
7. If any value exceeds a control limit, run a second QC Step Wedge Test and graph the values. If
the test fails again, DO NOT run clinical mammograms until the problem is corrected. Proceed as
follows:
a. Circle the out of control point(s) on the chart.
b. Correct the problem. (The fault could be in the film or in the machine.)
c. Note the cause of the problem in the "Remarks" section of the control chart.
d. Repeat the step wedge test and graph the parameters on the control chart.