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HP Designjet 4500 Printer Series - Resolving Paper Jams

Issue:
A paper jam (paper stuck in the printer).
Solution
  note:
This topic applies to the HP Designjet 4500 Printer series only.
When a paper jam occurs, normally a paper jam message is displayed in the front panel, with one of the following error codes:
  • 81:01: Indicates that paper cannot advance into the printer.
  • 84.1:01: Indicates a paper jam in drawer 1.
  • 84.2:01: Indicates a paper jam in drawer 2.
  • 86:01: Indicates that the printhead carriage cannot move from side to side.
Figure : Paper jam error code on the Front Panel
If the Select key is pressed, the front panel will display an animation showing how to recover from the paper jam.
Check printhead path
  1. Switch Off the printer at the front panel, then also switch Off the power switch at the rear.
    Figure : Switching Off the power
  2. Disengage the bin or stacker from the printer.
  3. Open the window.
    Figure : Opening the printer window
  4. Lift the drive pinch lever as far up as it will go.
    Figure : Lifting the drive pinch lever
  5. Lift the roll 1 paper load lever.
    Figure : Lifting roll 1
  6. Lift the roll 2 paper load lever.
    Figure : Lifting roll 2
  7. Lift the lower drawer upwards a little, then pull it as far as it will go.
    Figure : Lifting lower drawer upwards
  8. Cut the paper.
    Figure : Cutting the paper
  9. Remove the roll.
    Figure : Removing the roll
  10. Lift the upper drawer upwards a little, then pull it as far as it will go.
    Figure : Lifting the upper drawer
  11. Cut the paper.
    Figure : Cutting the paper
  12. Remove the roll.
    Figure : Removing the roll
  13. Lower the lock lever on the left.
    Figure : Lowering the lock lever
  14. Lower the lock lever on the right.
    Figure : Lowering the lock lever
  15. Pull the front path as far as it will go.
    Figure : Pulling the front path
  16. Try to move the printhead carriage out of the way.
    Figure : Removing printhead carriage
    Figure : Removing printhead carriage
  17. Carefully remove any of the jammed paper that can be lifted up and out from the top of the printer.
    Figure : Removing jammed paper
  18. Push paper inwards on the platen.
    Figure : Pushing paper inwards
  19. Carefully pull the rest of the paper down and out of the printer. Look to see if there is any loose pieces of paper left in the paper path.
    Figure : Pulling the jammed paper
  20. Push the front path back into place.
    Figure : Pushing the front path
  21. Lift the lock lever on the left.
    Figure : Lifting the lock liver
  22. Lift the lock lever on the right.
    Figure : Lifting the lock liver
  23. Push the upper drawer back into place.
    Figure : Pushing the upper drawer
  24. Push the lower drawer back into place.
    Figure : Pushing the lower drawer
  25. Lower the drive pinch lever.
    Figure : Lowering the drive pinch
  26. Lower the roll 1 paper load lever.
    Figure : Lowering the roll 1
  27. Lower the roll 2 paper load lever.
    Figure : Lowering the roll 2
  28. Close the window.
    Figure : Closing the printer window
  29. Switch On the printer.
  30. Reload the rolls.
    If it is found that still some paper is causing an obstruction within the printer, it can often be cleared by loading a rigid paper type into the printer.
  31. Re-engage the bin or stacker with the printer.
  32. If there is a print quality issue after a paper jam, try realigning the printheads.
A paper jam in drawer 2 [4500]
A paper jam in drawer 2 is indicated on the front panel by a possible paper jam message with the error code 84.2:01.
Figure : Paper jam error code on the Front Panel
If a Select key is pressed, the front panel will display an animation showing how to recover from the paper jam.
Follow the steps given below to clear the jam:
  1. Switch Off the printer at the front panel, and also switch Off the power switch at the rear.
    Figure : Switching Off the power
  2. Disengage the bin or stacker from the printer.
  3. Open the window.
    Figure : Opening the printer window
  4. Lift the drive pinch lever as far up as it will go.
    Figure : Lifting the drive pinch lever
  5. Lift the roll 2 paper load lever.
    Figure : Lifting roll 2
  6. Lift the lower drawer upwards a little, then pull it as far as it will go.
    Figure : Lifting lower drawer upwards
  7. Cut the paper.
    Figure : Cutting the paper
  8. Remove the roll.
    Figure : Removing the roll
  9. Lift the upper drawer upwards a little, then pull it as far as it will go.
    Figure : Lifting upper drawer
  10. Carefully remove the cut-off lower end of the paper.
    Figure : Removing the cut-off lower end
  11. Carefully remove any of the jammed paper that can be lifted up and out from the top of the printer.
    Figure : Removing the jammed paper
  12. Investigate the front of the roll module, behind the drawers.
    Figure : Checking the front roll module
  13. Remove any paper that is seen there.
    Figure : Removing the jammed paper
  14. Remove any paper trapped between the roll and the small plastic rollers.
    Figure : Removing the jammed paper
  15. Go behind the printer and find the three vertical slits at the rear of the roll module.
    Figure : Three vertical slits at the rear of the roll module
  16. If the paper is seen through the slits, try to remove it by pushing it upwards or downwards.
    Figure : Removing the jammed paper
  17. Return to the front of the printer, and push the upper drawer back into place.
    Figure : Pushing the upper drawer
  18. Push the lower drawer back into place.
    Figure : Pushing the lower drawer
  19. Lower the drive pinch lever.
    Figure : Lowering the drive pinch lever
  20. Lower the roll 2 paper load lever.
    Figure : Lowering the roll 2 paper load lever
  21. Close the window.
    Figure : Closing the printer window
  22. Switch On the printer.
  23. Reload the rolls.
    If it is found that still some paper is causing an obstruction within the printer, it can often be cleared by loading a rigid paper type into the printer.
  24. Re-engage the bin or stacker with the printer.
  25. If a print quality issue is found after a paper jam, try realigning the printheads.

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