SBU Test Mode

Output the SBU test pattern with SP4-807-001 to make sure the scanner SBU control operates correctly. The SBU test pattern prints out after you have set the SP mode settings and pressed the start key.

• The CCD on the SBU board may be defective if the copy is abnormal and the SBU test pattern is normal.

• The followings can be the cause if the copy is normal and the SBU test pattern is abnormal:

  • The harness may not be correctly connected between the SBU and the BICU.

  • The BICU or SBU board may be defective.