Print defects are not toner related.
You heard that right! Print defects are not really caused by the laser printer toner but by the laser printer itself and its major components. Considering toner as the culprit sounds like blaming the electrical power supply for the inconvenience of a dark environment, instead of the CFL bulb that has burned out. Toner powder has been precisely formulated to fit particular printing specifications. But once a component breaks down, defects will begin to manifest over the printouts.
Toner Cartridge Related Defects
Toner cartridge malfunction often results in light prints and toner smears over the printout. If there is a problem with the settings tolerance between the doctor blade and developer roller, a lot of laser printer toner spews onto the Organic Photo Receptor (OPC) Drum. This consequently produces toner smears over the output, particularly on the reverse side of the paper. Moreover, inadequate electrical potential fed to the developer roller attracts less toner which results to pale laser prints, similar to a cartridge running low on toner.
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OPC Drum Related Defects
The OPC Drum is a vital laser printer component. Once the drum’s surface succumbs to scratches, a string of print defects can be expected. Defects typically commence with back grounding to getting vertical toner streaks across the printout. Scratches can be the result of excessive wear or the accidental drop of office necessities like staple wires or clips into the laser printer’s mains. Both irregularities will manifest as vertical toner streaks.
The OPC drum works in tandem with the wiper blade, the latter precisely positioned to clean the OPC Drum of residual toner after every printing cycle. However after some time, the wiper blade may lose its grip on the OPC Drum’s surface to affect its efficiency. When this happens, the OPC Drum will not be completely rid of laser printer toner particles, which in turn produces residual images over the printout.
Fuser Unit Related Defects
The fuser bonds toner particles to paper and utilizes high heat and pressure to complete the process. When toner is properly fused to media, prints will come out crisp, sharp and smear proof. However, when the fuser malfunctions and operates under a low temperature setting, proper bonding will not be achieved to result in printouts that easily flake. On the other hand if the fuser operates under extreme temperature, it could torch paper and turn it brittle. Moreover, the lamp could burnout or the silicon rubber rollers could be damaged, lose form and cause paper jams.
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Next time you encounter irregular prints, remember that it is not laser printer toner related. Instead, it’s a sign that a laser printer component has malfunctioned.
