Follow the manufacturer specifications to
install the printer consumables like ink, toner units, or ribbons. Some ink-jet printers must be powered on before installing
ink cartridges. In general, laser and dot matrix printers should not
have power when installing the toner unit or print ribbon. The
following precautions should always be taken when installing toner
units, ink cartridges, or ribbons:
- Laser printer toner units should be shaken vigorously in a
side-to-side manner to evenly distribute the toner inside the
hopper.
If toner spills out of the cartridge, it can be wiped up with a damp
cloth.
- Ink-jet printer cartridges can be fragile. Be sure to handle
with care and do not touch the print head or foil contacts.
 This
could clog the nozzles and cause erratic output. Also, be sure to
install the correct color cartridge in the appropriate slot in the
printer.
- Printer ribbons should be handled on the plastic ends only.
Never touch the actual ribbon.
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