How to Troubleshooting Brother Printers Issues?

The vertical line are mostly caused by a defective LCD panel.

Turn the printer off and pull the power plug from the printer for 5 minutes. Plug it back in and attempt to turn the printer on and watch the LCD for error messages. Check your user manual for troubleshooting procedures. Check to make sure that all the ink cartridges are seated in their sockets and have ink. Check for paper jams inside the printer. Some printers have a diagnostic that can be run by holding down a switch while powering on the printer - again, check your user manual for that procedure. Contact Brother customer support, particularly if the printer is still under warranty.

Sir/ Madam

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Click here to visit Brother Official Support & Download page for DCP-7030. User Guide, Troubleshooting information etc are available. You can also search for specific issues from the troubleshooting section. The most important point as far as routine mainenance is concerned is I think keeping the printer clean, using good quality paper and genuine supplies/toner.
Let me know if any further clarification/ assistance is required.

Hope this helps! Good Luck!
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