HP 200T - Manual (Page 13)

The smooth, spherical surfaces of HP toner particles are precisely engineered to
allow for higher and more uniform charge capability. Furthermore, their round
shape helps the toner flow easily, evenly and quickly over the image areas and
their uniformity ensures accurate colour. Each of these characteristics works
together to stabilize the adhesion between toner particles and drum surface,
enabling accurate and efficient transfer of toner.
Oil-free toner fusing
Furthermore, unlike many competitive colour laser printers, HP’s colour toners do
not require the use of oil in the toner fusing process. This feature allows the much
sought after option of automatic duplex (two-sided) printing. And, of course,
HP toners offer greater print permanence and archival durability over rival solid
wax and inkjet technologies.
All HP Color LaserJet printing systems are designed and calibrated to work with
chemically grown toner to ensure optimal results, an integrated system approach
which delivers high quality professional printing and consistent colour.
The end results of these major advances in colour toner technology are long-lasting
outputs, more colours, finer photographic details, better transitions between colours
and solid, smooth area fills. And the precise matching of toner, print cartridge
design, colour software and printing process components ensures reliable, high
quality printing at all times.