HP Laserjet Error Codes 13 21 DOOR OPEN JAM

1. Check the transfer roller a

nd small media belt to ensure they are operating and can feed print media.
2. Check the paper path for obstructions at the transfer roller, toner cartridge, paper feed assembly, and fuser.
3. Replace any defective sensors or flags.
4. Turn the media stack over and/ or rotate it by 180° in the input tray.

HP Laserjet Error Codes 13 2 PAPER JAM OPEN INPUT TRAYS

1. Check the input area for obstructions such as paper in the path. Also check to see if the registration assembly is damaged or if the transfer roller is out of place. 2. Replace any defective sensors or flags.
3. Ensure the media does not exceed the maximum length.
4. If multiple sheets are feeding, it might be necessary to fan the media and reduce the stack height. Also, replace separation pad.
5. Verify that the fuser is properly installed.

13 10 PAPER JAM CHECK DUPLEXER

1. Check the duplexer and the rear area of the printer for obstructions or damage. 2. Check the duplexer for proper operation. Replace the duplexer if a sensor is defective.