Since their introduction in October
2005 nearly 2 million of the latest generation of HP color printers
have been sold worldwide.
models include HP 2600N/HP 3000/2550/3550/4650
and many more
We are pioneers in compatible color laser technology.
compatible laser color toner cartridges,
deliver print defect free color performance and are equipped with
chips, opc drums, seals, wiper and doctor blades
We also specialize
in color laser printers on contract basis. Please see our contract
section for typical terms and conditions for the same.
During the image
transfer stage on the paper, where the transfer roller which is
located directly opposite each opc drum, places a positive DC bias
charge on the back of the ETB(Transfer belt as called by HP). Each
toner cartridge has a separate transfer charge roller. At the same
time the paper is moving between the OPC drum and the ETB. Use of
inferior non chemical toner powder can easily damage
the very sensitive ETB and lead to poor prints.
In one of the
stages the primary charge roller places a uniform
negative DC bias voltage on the opc drum surface. The amount of
the negative Dc bias placed on the drum is controlled by the printers
intensity setting. This process is called conditioning. Hence the
need to change the primary charge roller every cycle to give a uniform
negative DC bias. Non compliance of the above might lead to faulty
In another stage
the laser beam is fired on to a rotating mirror called the scanner.
As the mirror rotates, the beam reflects into a set of focusing
lens. The beam then strikes the opc surface leaving a latent electrostatic
image on the drum. The opc drum should be mint
new, as otherwise image distortion would take place.
Use of chemical
toner is imperative. Changing all the other critical components
ensures defect free prints and no damage to the printer.