HP Designjet 4520 HD User Manual

							Front panel messageSuggested action
Sheet too long.During the load process the printer has detected that the sheet is too long to be
loaded properly. Make sure that the printer expects sheet and not roll. Press
the Select key to try to load the paper again. See 
Functional specifications
on page 208.
Lever  lifted. During the load process the paper load lever was lifted. This prevents the printer
from loading the paper. Press the Select key to load the paper again.
The paper cannot be loaded successfully [4520]
NOTE:This topic applies to the HP Designjet 4520 Printer series only.
●The paper may be loaded at an angle (skewed or mislocated).
●The paper may be crumpled or warped, or may have irregular edges.
●If the paper gets stuck in the paper path to the platen, it may be that the leading edge of the paper
is not straight or clean, and needs to be trimmed (see 
Trim the paper with the manual cutter
[4520] on page 38). Remove the initial 2 cm (1 in) from the roll and try again. This may be necessary
even with a new roll of paper.
●Check that the drawer is correctly closed.
●Check that the spindle is correctly inserted.
●Check that the paper is correctly loaded on the spindle, and that it loads over the roll towards you.
●Check that the paper is wound tightly on the roll.
●Check that the roll is not separated from the black hub on the right side of the spindle.
Here is a list of front panel messages related to paper loading, with the suggested corrective action.
Front panel messageSuggested action
Right edge not found.The printer cannot locate the right–hand edge of the paper, the paper may be badly
positioned. Press the Select key and try to load the roll again.
Paper not found.During the paper load process the printer did not detect any paper. Press the
Select key to retry.
Paper loaded with too much skew.During the paper load process the printer detected that the paper had too much
skew. Press the Select key to try to load the paper again.
Paper too small.During the load process the printer detected that the paper is too narrow or too short
to be loaded in the printer. Press the Cancel key to stop the load process. See
Functional specifications on page 208.
Lever lifted. During the load process the paper load lever was lifted. This prevents the printer
from loading the paper. Press the Select key to load the paper again.
A paper jam (paper stuck in the printer) [4020]
NOTE:This topic applies to the HP Designjet 4020 Printer series only.
When a paper jam occurs, you will normally see the Possible paper jam message in the front panel,
with one of two error codes:
●81:01 indicates that paper cannot advance into the printer.
●86:01 indicates that the printhead carriage cannot move from side to side.
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							Check printhead path
1.Switch off the printer at the front panel, then also switch off the power switch at the rear.
2.Open the window.
3.Try to move the printhead carriage out of the way.
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							4.Lift the paper load lever as far up as it will go.
5.Carefully remove any of the jammed paper that you can lift up and out from the top of the printer.
6.Carefully pull the rest of the roll or sheet down and out of the printer.
7.Switch on the printer.
8.Reload the roll, or load a new sheet. See 
Load a roll into the printer [4020] on page 24 or Load a
single sheet [4020] on page 28.
9.If you find that there is still some paper causing an obstruction within the printer, it can often be
cleared by loading a rigid paper type into the printer.
10.If you find that you have print quality problems after a paper jam, try realigning the printheads.
See 
Align the printheads on page 101.
Check paper path
●This problem can occur when a roll has finished and the end of the roll is stuck to the cardboard
core. If this has happened, cut the end of the roll away from the core; you should then be able to
feed the paper through the printer, and load a new roll.
●Otherwise, follow the procedure described above, under 
Check printhead path on page 132.
A paper jam (paper stuck in the printer) [4520]
NOTE:This topic applies to the HP Designjet 4520 Printer series only.
When a paper jam occurs, you will normally see the Possible paper jam message in the front panel,
with one of the following error codes:
●81:01 indicates that paper cannot advance into the printer.
●84.1x:01 indicates a paper jam in drawer 1.
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							●84.2x:01 indicates a paper jam in drawer 2 (see A paper jam in drawer 2 [4520] on page 142).
●86:01 indicates that the printhead carriage cannot move from side to side.
If you press the Select key, the front panel will display an animation showing how to recover from the
paper jam. This animation can be viewed at any time by selecting the 
 icon, then > Printer
configuration > Clean drawer roller. Alternatively, you can refer to this document (see below).
Check printhead path
1.Switch off the printer at the front panel, then also switch off the power switch at the rear.
2.Disengage the bin or stacker from the printer.
3.Open the window.
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							4.Lift the drive pinch lever as far up as it will go.
5.Lift the roll 1 paper load lever.
6.Lift the roll 2 paper load lever.
7.Lift the lower drawer upwards a little, then pull it towards you as far as it will go.
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							8.Cut the paper.
9.Remove the roll.
10.Lift the upper drawer upwards a little, then pull it towards you as far as it will go.
11.Cut the paper.
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							12.Remove the roll.
13.Lower the lock lever on the left.
14.Lower the lock lever on the right.
15.Pull the front path towards you as far as it will go.
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							16.Try to move the printhead carriage out of the way.
17.Carefully remove any of the jammed paper that you can lift up and out from the top of the printer.
18.Push paper inwards on the platen.
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							19.Carefully pull the rest of the paper down and out of the printer. Look to see if there any loose pieces
of paper left in the paper path.
20.Push the front path back into place.
21.Lift the lock lever on the left.
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							22.Lift the lock lever on the right.
23.Push the upper drawer back into place.
24.Push the lower drawer back into place.
25.Lower the drive pinch lever.
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