Lexmark CX310
Step 1
Remove, and then reinstall the imaging kit.
Warning—Potential Damage: Do not expose the imaging kit to direct light for more than 10 minutes. Extended exposure to light may cause print quality problems.
Warning—Potential Damage: Do not touch the underside of the imaging kit. This could damage the imaging kit.
Resend the print job.
Is the printer printing solid black pages?
Go to step 2.
The problem is solved.
Step 2
Replace the imaging kit, and then resend the print job.
Contact customer support.
Solid Black Pages or Horizontal Black Stripes on Pages Printed from the Lexmark CS310, CS410, CS510, CX310, CX410, and CX510
Dark Vertical Lines when Printing from the Lexmark CS310, CS410, CS510, CX310, CX410, and CX510