Brother International DCP 8040 Service Manual - Page 279
Operational Check of Control Panel PCB Maintenance mode 13
UPC - 012502610328
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MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN SERVICE MANUAL 3.8 Operational Check of Control Panel PCB (Maintenance mode 13) < Function > This function allows you to check the control panel PCB for normal operation. < Operating Procedure > (1) Press the 1 and 3 keys in this order in the initial stage of the maintenance mode. The "00 " will appear on the LCD. (2) Press the keys and buttons in the order designated in the illustration shown below. The LCD shows the corresponding number in decimal notation each time a key or button is pressed. Check that the displayed number is correct by referring to the illustration below. If a key or button is pressed out of order, the machine beeps and displays the "INVALID OPERATE" on the LCD. To return to the status ready to accept key & button entry for operational check, press the Stop button. (3) After the last number key or button is pressed, the machine beeps for one second and returns to the initial stage of the maintenance mode. To terminate this operation, press the Stop button. The machine returns to the initial stage of the maintenance mode. MFC8440/MFC8840D/MFC8840DN DCP8040/DCP8045D/8045DN Fig.7-7 Fig.7-8 7-13