Sometimes when you are printing very important document, such as the contract or papers, but you just get the blank one,no any words on it! Soon, only blank pages are coming out. What do you do? Don’t panic and check the display screen on your printer or copier. If it reads, “Replace Drum / Toner cartridge,” or if the cartridge LED is flashing red, you will just need to swap the used up ink cartridge with a new one. A good number of photocopying machines and laser printers utilize toners or large cartridges that are housed inside a drum. You will need to detach this in order to slot in the replacement. Make sure that you use the correct replacement cartridge type; otherwise, you can seriously damage the drum.
Firstly, you should find the type of the toner cartridge on your printer, and then buy the right one. It is advisable that you always keep an extra toner cartridge at the ready should the one installed run out. If you don’t know what type of cartridge your particular machine uses, don’t hesitate to bring the drum unit with you when you go to the office supply shop. If this is not possible, simply supply the salesperson with the specific brand and model number so that he can find the correct replacement cartridge for you.
Withdraw entire drum unit / cartridge assembly. Turn your printer off and pull its plug from the socket. Release the front cover and carefully, but firmly, grasp the handle of the drum and pull the entire cartridge assembly until it pops out of the machine completely. Quickly wrap the drum unit with old newspaper or cloth to avoid spilling or scattering any leftover toner. Make sure that you are working in an area away from an open flame as the chemicals inside the cartridge are highly flammable.
Remove the used up cartridge from its drum. Make sure that you are holding the ink cartridge securely in one hand before releasing the lock lever. For some units, the lock lever is blue, while in others, this mechanism is green. With your other hand, pull on the drum unit until the cartridge is freed.
Interpose the replacement cartridge into the printer’s drum unit. Before replacing the drum unit, make sure that the printer is clean. Wipe away any loose powder inside the printer using a lint-free cloth or dry paper towel. Do not spray any cleaning agent inside the machine to avoid any electrical shock once the power supply has been returned. Unpack the new toner cartridge and shake it thoroughly from one side to the other about six times. Unpeel any protective seals and unclip the bracket from one end of the new cartridge. Push the cartridge into the drum unit. Make sure that it clicks in place and the lock lever lifts automatically.
Plug in the drum back into the machine. Hold the drum unit firmly by its handle. Align the markers on the assembly with the appropriate arrows on the printer. Gently push the drum unit in place. Slide it in until you hear a gentle click. This means that the drum is locked in place correctly. Then cover the hull and put the toner cartridge in the printer. You can continue your printing..