It prints one copy than locks up and on the printer i get unable to print F4.If i turn it off than on again it prints a copy than the same message.

If you are using windows - go to Printers / Devices and uninstall the printer

Turn the printer off and wait a couple of minutes

Now turn on the printer

Now add the printer in windows again and it should work

turn off the printer then refresh th computer that the prinyer is connected to then turn the printer again and restart the computer thgat shald do it.

I have brother DCP 7055 it shows print unable 72 & some time it show 71 error pls suggest

Without turning off the printer, disconnect the USB cable at the back of it.

Remove the cartridges and wait for the 'Insert Cartridges ' message to display on the control panel.

Disconnect the power cord from the back of the printer then wait 60 seconds and reconnect the power cord.

If the printer does not automatically turn on, press the Power button.

Reinsert the cartridges, and then close the cartridge door.

If it prompt you to print a calibration page, do so.

Reconnect the USB cable at the back of the printer, and then try printing again.

If the same error message appears on the front panel service your printer.

TNX

turn off the printer check papers sheets and cable restart and print again

Try this Issue When trying to copy, print, or receive a fax, the following error message appears on the product control panel display. Ink System Failure. Ink system has failed. Unable to copy, receive faxes, or print. Refer to printer documentation. Error: 0xc19aYYYY NOTE: The Y in the error message represents any digit, 0 - 9, or any character, A - F. Solution To resolve the issue, use the following steps. Step one: Remove the cartridges Make sure that the product is turned on and then disconnect the USB cable from the back of the product. Open the product cover and remove the cartridges. Close the cover and wait for a message to insert the cartridges to appear on the control panel display. Disconnect the power cord from the back of the product. Disconnect the power cord from the wall outlet and wait for one minute. Step two: Reinstall the cartridges Reconnect the power cord to the wall, reconnect the other end of the power cord to the product, and then turn on the product if it is not already on. Open the product cover and reinstall the cartridges. Close the cover and print a calibration page, if prompted. Print a self test report to make sure that the product can print. Reconnect the USB cable between the product and the computer. Try to print a document from an application on the computer.

Normal 0 Could have a corrupt driver.
Disconnect the printer or at least be sure it is turned off. I'd do both and when the CD software program asks you to connect the printer to the USB port, do so and it should again work properly.
Hope this helps. Bud

please press menu then start bk-copy (blue-button) then fourtimes arrow-up quickly one after another. machine will be in maintnenace press start bk copy again. What two digit error code does the machine display? Post again here.

(There are more than 20 diffrent errors for unable to print behind ;-))

5A: encoder disc or encoder strip or main circuit board or printhead circuit board or power supply defective!

Sorry, cant be fixed by yourself!

Have you tried replacing the ink cartridge?