Tech Service Bulletin No. AFICIO 5106/5206 - 005
Page 3 of 5
22. During the copy cycle go back into SP mode and check that the VT data is the same as Vref ± .2 volts for
colors exhibiting fireflies.
23. Continue to run copies until Vref is within ± .2 volts, then stop the copy process.
24. Enter SP Adjustment page 4. (P-con OFF Mode).
25. Subtract 100 volts from VB and VG (new value from step 12 & 14) for the colors exhibiting fireflies.
NOTE:
If VB is -400, subtracting -100 will equal -300
26. Go to SP Special Features page 1, Auto Process Control Self Check and select Reset.
27. Enter SP Mode, select <2> SP Test page 1 and enter 255 for the Test Pattern Level.
28. Press The Next Key to turn to page 2 and select the Full Dot Test Pattern.
29. Enter "Copy in SP Mode".
30. Produce a Full Dot Test Pattern for each toner color (CMYK) on 11 X 17 inch paper of the color(s)
exhibiting fireflies.
31. Verify if fireflies have been reduced to an acceptable level.
32. If fireflies have been reduced to an acceptable level , Set VB to 495 and set VG to 650 then proceed
to step 33.
NOTE:
If no good, go to step 37.
33. Go to Sp Adjustments page 1 and set Auto Process Control Self Check to PID.
34. Produce a Full Dot Test Pattern for each toner color (CMYK) on 11 X 17 paper of the color(s) exhibiting
Fireflies.
NOTE:
If no t acceptable, go to step 37. If acceptable, proceed to step 35.
35. Go to SP Test Mode page 2 to reset the test pattern condition
36.
END.
37. If not acceptable, Enter SP Adjustments, page 5 and add 200 volts to the current setting for Transfer
Belt Bias face side.
38. Go to Sp Adjustments page 1 and set Auto Process Control Self Check to PID.
39. Make a copy, if still unacceptable add 200 volts to the current setting for Transfer Belt Bias face side.
NOTE:
Do not add more than 400 volts.
40. If still unacceptable, go to step 15 and repeat the process.
Continued...
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