Exposure Adjustment Procedure - AGFA Avantra 36/44 Service Manual

Avantra 36/44 Service Manual
4. Enter the Image menu.
5. Select the Test Files sub menu.
6. Select the SCALEFID.CON file and press ENTER.
The test file should now image.
7. Press the Feed/Cut icon on the Avantra's operator's control panel (OCP).
8. Remove the take-up cassette and develop.
9. Measure the distance from the first line imaged to the center of the middle
round hole punched in the fast scan direction.
The distance should be 0.48" +/- 0.01". Draw a line through the center of
the punched hole to make measuring easier.
10. If the BOL-to-punch distance is out of specification, fine adjust the BOL off-
set value. Use the following formula/example:
0.48 - Actual BOL-to-Punch distance = Amount out
Amount out / .001 = BOL Offset units to be added/subtracted
11. Enter the new BOL offset value using the AVDIAG Program and rerun the
scale file.
12. Measure the copy again to insure BOL-to-punch distance is correct.
13. Re-adjust as required.
5.3

Exposure Adjustment Procedure

Use the Exposure Adjustment Procedure to set the exposure to a range suitable
for imaging both text and graphics. This procedure runs the exposure array for
all four resolutions.
Tools Required: Densitometer (must be able to measure dot gain)
Steps:
1. Connect the system APIS cable to the PC Imager board in your PC.
2. Turn the system on and wait for it to complete the boot cycle.
3. Launch the PC Imager program from your PC.
4. Select Image and then Special Arrays.
5-4 Alignment
Original BOL Offset Value - 22,000
0.48 - 0.72 = -0.24
-0.24 / .001= -240
New BOL Offset Value - 22,000 + (-240) = 21,760