20 Most Recent Brother DCP-1510 Laser Multifunction Printer - Monochrome - Plain Paper Print - Desktop Copier/Printer/Scanner - 21 ppm Mono Print - 2400 x 600 dpi Print - 21 cpm Mono Copy - 600 dpi Optical Scan - Manual Duplex Print - 150 sheets Input - USB - Page 3 Questions & Answers

download utilities if your printer can use them

got the right cord?

Go to brother web site and check for updated drivers.

Open the front of the printer by pulling the front panel toward you and down. (where you replace the toner cartridge)Remove the toner cartridge/drum unit assembly by pulling up and toward you.separate the drum unit from the toner cartridge by pressing the green release tab on the side and lifting them apart.place the toner cartridge into the new drum unitreplace back in the printerpress "clear/back" button and then press "1" to cancel "replace drum" messageclose the front panel.http://support.brother.com/g/b/faqend.aspx?c=au&lang=en&prod=mfc7340_us_as&faqid=faq00000154_039

Hi Anonymous. The 4F error is related to a failed printhead. In the case of this new printer coming up with a 4F error it can be one of two things. 1) The printer had a faulty printhead straight out of box. Not common but can happen. 2) You have pushed your printer too hard. Normally Brother Inkjet printers are not designed to handle 2000 page print jobs (That is 4 reams of paper) most inkjet printers don't even have close to enough ink to do this sort of print job. You may have just blown the printhead up through overuse.

re install soft ware

REPLACE MAINTENANCE UNIT

Check the ventilation fan (not working)

Usually from the maintenance unit, chabge it.

The scanner type mounted doesn't match the eeprom data. Refer to qualified technician at Brother service centre for checking

Probably the laser unit is faulty

The waste ink tank is full, replace it.

Which bearing ?

Replace the high voltage PCB or the main board.

Check the ventilation fan on the side. Might not be working. Remove any foreign material blocking the fan.

'unable to print 73' is a Printhead error.. Usually the printhead is an expensive part around $80 to $110, and you will need a full set of cartridges to prime the new printhead.. Sorry to say that this repair is not normally economical to go ahead with.

A picture of the printout is required to confirm, nevertheless, it could be toner. Printing does not use scanner, so it has nothing to do with the scanner.

Ghosting on machines can be one of several causes.

1. Poor Quality/ Damp toner - Replace the toner cartridge
2. Worn Drum Unit - Replace the Drum Unit
3. Fuser Unit Failing - Replace the Fuser Unit (Normally more than the printer is worth).
4. Damp Paper - Open a new ream of paper and try printing again (This is the cheapest option to start with diagnosis).

Magenta Print-head may be blocked. Depending on the model of machine. Either on the Menu on the printer find Ink Management or press the Ink Management button. Print a Test Page If no Magenta Dots showing then proceed to Cleaning and Clean the print-heads through the proceedures given on the machine. Print another test page. If Magenta Dots are fine then cleaning done. if not then try cleaning again. If still not fine then the machine will need to be cleaned professionally which will cost a reasonable amount. Most service fees are more that it is to replace the printer.

Pull out the paper tray. Lift the cover of the tray. Slide paper into the tray. Close the cover of the tray. Push the tray back into the machine till it clicks into place.