I have a mfc-665cw and dosn't print blk . i replaced the cartridge twice

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in my printer brother mfc-7340 when i coping with machine after some time display will show print unable with error code 72 what i will do? plse tell me;

try a purge.
press menu/set, black start, 0, 7, 6 as quickly as you can

then press 3 and black start

i don't own this printer, but most printers use all colors to print black unless you specifically say in the printer options, only print black....also a lot of printers now a days only print when all cartridges have ink....makes you buy.

It can be done, but all ink cartridge need to be in printer.The printer need all cartridges to initialized.When you start printing something click on Properties then find Advanced.There is a option Colour/Greyscale.Check on greyscale and it's done.

unable to print 50& 30

Normal 0 Disconnect the printer or at least be sure it is turned off. I'd do both and reinstall the CD software program that came with the printer. When the software program asks you to connect the printer to the USB port, do so and it should again work properly.
Hope this helps. Bud

Somethings that have worked for some Brother owners to get cartridges recognised.

1. With your MFC powered up, open it up and remove the cartridge you are having a problem with, then close the MFC, leaving it powered up. It should report that there is no cartridge in the machine.

Still with the MFC powered up, open it up and reinsert the ink cartridge, then close the MFC. It should either ask if you have replaced a cartridge or go into its cleaning mode.

Answer "yes" to "have you replaced cartridge?" and it should either "print" or "clean" and then "print".


2. The cartridge holder in the printer has an "electronic eye" (light sensor) of some type for each cartridge.
Some users have found that putting either permanent marker/sharpie/black PVC tape either on the area of the ink cartridge that goes near the sensor or alternatively putting tape over the sensor itself allows printing to occur.
The problem with this method is that the printer will no longer recognise near-empty cartridges and so will not warn you to replace them and so the print head may be damaged. This is said to work on LC57 icartridges used with the following models: DCP-330C, DCP-350C, DCP-540CN, DCP-560CN, FAX-2480C, MFC-240C, MFC-440CN, MFC-465CN, MFC-665CW, MFC-685CW, MFC-885CW, MFC-3360C, MFC-5460CN, MFC-5860CN.

replace all colours and it will then print

you need to do a hard reset on the printer as well it might clear up the problem and recognize the ink at its proper levels.

refer to your user manual or let us know and we will find the procedure to do so.

i have a similar model and know how picky they can be.