Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 483

COPIER> ADJUST> EXP-LED
PR-EXP-K Setting of Bk Pre-exposure LED current
Lv.2 Details To set the current of the Cleaning Pre-exposure LED (Bk).
Increase the value when taking a measure for drum ghost.
Decrease the value when potential is not applied well.
Use case • When drum ghost is significant (drum pitch is not correct)
• When potential is not applied well
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Display/adj/set range 0 to 2
0: 40 mA, 1: 80 mA, 2: 80 mA
Unit 1 mA
Default value 0
T-5-45
5
5-255