Brother International MFC 7440N Users Manual - English - Page 143
Put the drum unit and toner cartridge, may have a vertical stripe.
UPC - 012502620631
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e Pull off the protective cover. f Put the new toner cartridge firmly into the drum unit until you hear it lock into place. If you put it in properly, the lock lever will lift automatically. Troubleshooting and routine maintenance CAUTION Be sure to return the green tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe. h Put the drum unit and toner cartridge assembly back in the machine. CAUTION Make sure that you put in the toner cartridge properly or it may separate from the drum unit. g Clean the corona wire of the drum unit by gently sliding the green tab from right to left and left to right several times. i Close the front cover. CAUTION DO NOT turn off the machine's power switch or open the front cover until the LCD returns to the standby state. 1 B 129