There could be particles that settle on the imaging unit during the manufacturing process or during transportation that causes occasional light streaking or spots. These issues typically clear up after a few printouts.
One step to try is running the printer through a cleaning cycle before printing. Run the printer through a full cleaning cycle (consult your printer's manual if necessary).
Should that not work, please try the following:
- Turn the power off to the machine.
- Remove the cartridge and gently turn the cartridge side to side 2-3 times to evenly distribute the toner.
- Turn the power on to the machine and allow it to restart normally.
- Print out about 10-20 pages of text or images from the printer.
The streaking and spots should clear up at that point.