FO-4450 OEM TONER CARTRIDGE

When using the verification stamp function of the Sharp FO-4450, it is important to remember that the stamp does NOT use the same toner as regular printing, but instead requires a small additional ink cartridge that must, from time to time, be replaced. No warning message will appear when the stamp requires replacing, but the stamp will eventually produce more and more faded stamping until it will apparently require a new cartridge.

To replace the ink cartridge in the stamp unit, first remove the exit tray for the automatic document feeder. You will find the GREEN ink cartridge underneath which can be removed by pressing down on the small protruding tab on it.

A new ink cartridge can then be inserted in its place with the tab facing OUT. Recycle the old cartridge and replace the exit tray for the automatic document feeder.

When the Sharp FO-4450 is first purchased, it will NOT have a toner cartridge pre installed and therefore one must be installed by hand. Periodically, the message REPLACE TONER will appear on the device’s display, signifying that it is almost time for a change. When the toner cartridge indicator light is blinking but no message is displayed, the fax machine can print roughly 100 more pages before toner runs out.

The fusing unit inside the Sharp FO-4450 becomes scalding hot during operation. This is why it is very important to let the fax machine cool down completely before attempting to change a cartridge, or at least avoid touching the inside of the print compartment and exercise caution.

The Sharp FO-4450 can be opened by pressing the release button on the INSIDE edge of the cover, then pulling the cover open. If this is not the initial cartridge installation, the old cartridge must be removed from the machine. Lift it out by its handle and dispose of it through a recycling program.

Remove the new toner cartridge from its shipping material and take the tape off the cartridge. Lift the handle of the cartridge so that it stands up on its own, then vigorously shake the cartridge side to side and in a flat rotation. If toner inside the cartridge is not significantly loosened, the machine may make noises when the cartridge is in use, though this is not necessarily a cause for concern.

Holding the cartridge by its handle, slide it into the print compartment by matching the blue and green sides with their like colors. Lower the handle and close the print cover. If the drum unit was not also replaced, no further action needs to be taken before operation.