Your printout is not satisfactory (lines, gaps, ...) with your LASER printer. What can you do?

1- Some models of cartridges have a tab that allows you to close the powder reservoir, check that this tab has been removed to release the powder. 2- Remove the cartridge and visually check if an abnormal ink deposit is visible, in this case replace the cartridge. If there are no outward signs of failure, gently shake the cartridge to evenly distribute the powder and then try printing again. 3- Test another cartridge in order to determine whether the origin of the fault is related to the cartridge or to the printer. If the cartridge is responsible for the printing problem then replace it.