Brother International MFC 8890DW Service Manual - Page 483

Selector No. Function Setting and Specifications No. 1 2 3 0 0 0: 16 hours 0 0 1: 24 hours 1 I ON-duration of the scanning light source at room temperature 0 1 0: 12 hours 0 1 1: 8 hours 3 1 0 0: 4 hours 1 0 1: 2 hours 1 1 0: 1/6 hours 1 1 1: 0 hours 4 I-FAX relay report 0: ON 1: OFF 5 I Modem attenuator 8 No. 5 6 7 8 0 0 0 0: -10 dBm 0 0 0 1: -11 dBm 0 0 1 0: -12 dBm 0 0 1 1: -13 dBm 0 1 0 0: -14 dBm | 1 1 1 1: -25 dBm • Selectors 1 through 3: ON-duration of the scanning light source at room temperature If the scanning operation is started when the scanning light source is off, then it will come on for scanning. These selectors determine how long the light source is ON after scanning. If these selectors are set to "1, 1, 1," the CCD unit goes off for protection of the CCD unit for 10 minutes after the scanning sequence. • Selectors 5 through 8: Modem attenuator These selectors are used to adjust the transmitting level of the modem when the reception level at the remote station is improper due to line loss. This function applies to super G3 protocol signals. App. 1-49 Confidential