Installation instruction of Brother TN420/TN450

These instructions explain toner installation procedures for a brother tn420/ tn450 toner cartridge.

The original toner cartridge that was included with this machine may either be a starter, standard, or a high yield cartridge. When the toner becomes low, the TONER LED indicator light will flash continuously until replaced. Once the toner cartridge is empty, the printer will enter a “REPLACE TONER” mode that ceases print functionality until the toner cartridge is replaced. A new and unused toner cartridge will reset the “REPLACE TONER” mode.

Before you begin please take time to perform the following steps to ensure that the new print cartridge is properly detected by your Brother printer:
1. Check to ensure that the dial on the left side of the brother toner cartridge is in the position as illustrated in the image below. If not, turn the dial counter clockwise until it matches the position in the image.
2. Check to make sure that the printer is powered up during the entire process. Changing the cartridge with the printer powered off will not reset the “REPLACE TONER” mode. In the event that the printer is powered off when the cartridge is installed, you will need to remove the cartridge and repeat step one before reinstalling the cartridge.

Replacing the toner cartridge

1. Make sure that the machine is powered up.
2. Open the front cover of the machine.
3. Remove both the drum unit and toner cartridge assembly.
4. Push down the green lock lever and take the toner cartridge out of the drum unit.
5. Unpack the new toner cartridge. Hold the cartridge level with both hands and gently shake it from side to side several times in order to distribute the toner evenly inside of the cartridge.
6. Pull off the protective cover.
7. Note: Before installing this cartridge, please check to ensure that the dial on the left side of the new cartridge is positioned identical to the image below. If not, turn the dial counter-clockwise until it matches the dial position in the image. It is imperative that this dial be locked into position as illustrated to ensure that the printer detects that a new cartridge has been installed and resets the “REPLACE TONER” mode.
8. Put the new toner cartridge firmly into the drum unit you hear and feel it lock into place. If installed successfully, the green lock lever will lift automatically.
9. Clean the primary corona wire inside of the drum unit by gently sliding the green tab from right to left and left to right several times.
10. Reinstall the drum unit and toner cartridge assembly back into the machine. Close the front cover.

Get familiar with printer supplies-teach you how to repair the drum

Toner to the toner is to reduce the cost of printing the most important method. But the more the number of plus toner, toner cartridges will print quality is getting worse, generally when applied toner over two times, three times, when there will be some regular black spots, and this issue will With the increase in the number of print more and more serious. Finally, there will be printed documents blurred or print out a black mark, this time, the cartridge to scrapped, abandoned it is a pity, leaving useless, most people will choose at this time to replace the new ink cartridge.

In fact, the old cartridge is still available, there are ways to repair, that is, renewable friends. Repaired after the print cartridge quality can also be comparable with the original cartridge, and the cost is only about a quarter of the original cartridge price. This is in line with environmental requirements, but also save our money. Hearing here, is not already heart it! Well, now let us together to waste cartridges to a "back to life."

In fact, repair cartridge method can be divided into new toner and replace the photosensitive drum two parts. Following on in the usual HP 6L printer cartridges, for example, how we provide a method of regenerating the drum. First of all, to cut off the power to the printer, remove the print cartridge from the printer (this is of course, or else how to regenerate it), then pinch the side of the metal pin with a diagonal clamp, carefully pull out (or With metal nails pin into the cartridge, open the cartridge can be taken out after the metal pins), silver metal pins on both sides can be pulled out after the cartridge is divided into two parts, a light blue photosensitive selenium is a collection of waste powder part, While the one with the magnetic roller is the part for powder.

And then part of the magnetic roller for the non-rotating side of the magnetic roller screw unscrew, take the plastic shell can be seen after a plastic cover, open the plastic cover, the toner cartridge and the magnetic roller on the clean up all the toner, Be sure to clean up all the residual toner, it is best to use a vacuum cleaner net absorption. Then the magnetic roller in the reverse order of just the right, this time should be held down by the magnetic roller to prevent the magnetic roller from the original position. The toner shaken slowly into the powder for the warehouse, a good plastic cover and plastic shell should pay attention to the magnetic roller on the axle at the end of the semicircle and plastic shell on the semi-circular holes on the good. Gently rotate the gears on the sides of the magnet roll to make the toner even.

Now comes the most important step - the replacement of the new drum. The waste toner fixing pin fixed portion of the photosensitive drum with diagonal pliers to pull out (this can not be fixed with nails to pin into the drum where yo!), You can remove the old drum pulled out after fixing pin, and then the waste Powder collection part of the waste powder clean up. According to the demolition of anti-order put on a new drum, photosensitive drum installed to note that there is about the points, there will be side of the gear groove mounted groove. Then, fix the pin to fix the photosensitive drum. Newly purchased photographic drums have a black anti-exposure seal, do not torn off before installation to prevent exposure, to be installed after the check can be torn off. Finally, the powder part and the waste collection part of the open position by the installation of recovery, plug the metal on both sides of the card, you can start printing.

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