HP Deskjet F4240 All-in-One Printer - Manual (Page 192)

3. If the print carriage did not move, open the front access door, and make note of
where the carriage is stuck and look for jammed paper.
A paper jam can cause the error message and the print carriage to stall.
CAUTION: Do not use any tools or other devices to remove jammed paper.
Always use caution when removing jammed paper from inside the product.
If the print carriage is stuck on the right side
a. Check for any paper or object that might be restricting the print carriage.
b. Move the print carriage all the way to the left side.
c. Check the paper path all the way to the right side and remove any paper still
in the product.
If the print carriage is stuck on the left side
a. Check for any paper or object that may be restricting the print carriage.
b. Move the print carriage all the way to the right side.
c. Check the paper path all the way to the left side and remove any paper still
in the product.
If the print carriage is stuck in the middle
a. Check for any paper or object that may be restricting the print carriage.
b. Move the print carriage all the way to the left side.
c. Check the paper path all the way to the right side and remove any paper still
in the product.
d. Move the print carriage all the way to the right side.
e. Check the paper path all the way to the left side and remove any paper still
in the product.
4. Close the front access door.
5. Check for a paper jam in the rear access door.
To check for a paper jam in the rear access door
a. Press in the tab on the rear access door to release the door. Remove the door
by pulling it away from the product.
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