Brother International MFC 8890DW Service Manual - Page 110
Error code ED, Print Unable ED, Turn off and on., Turn the power off and then back on again.
UPC - 012502622673
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Page 110 highlights
■ Error code ED Print Unable ED Turn off and on. Wireless LAN connection failure Step 1 2 Cause WLAN PCB failure Main PCB failure Remedy Replace the WLAN PCB ASSY. Replace the main PCB ASSY. ■ Error code EE Print Unable EE Turn off and on. Wireless LAN is unable to communicate Step 1 2 Cause WLAN PCB failure Main PCB failure Remedy Replace the WLAN PCB ASSY. Replace the main PCB ASSY. ■ Error code EF Print Unable EF Turn the power off and then back on again. LVPS PCB failure User Check • Turn the power off. Turn it on again after a while. Step 1 2 Cause LVPS PCB failure Main PCB failure Remedy Replace the LVPS PCB ASSY. Replace the main PCB ASSY. ■ Error code F8 Machine Error F8 Battery connection error Step 1 2 3 Cause Remedy Battery harness connection failure Reconnect the battery harness. Main PCB failure Replace the main PCB ASSY. Battery failure Replace the battery. 3-38 Confidential