After replacing the sub hopper unit, you have to execute Density Adjustment Process Control.

  1. Turn ON the main power switch with the bypass tray unit [A] or the vertical transport door [B] open.
  2. Enter SP mode and close the bypass tray unit or vertical transport door.
  3. Execute SP3-011-002 (Manual ProCon:Exe > Density Adjustment).
  4. Confirm that SP3-012-001 (ProCon OK? > History:Latest) shows “11111111”.