HP DesignJet 510 1067 mm User Manual

							Color accuracyThese are the areas you should review when troubleshooting a color accuracy problem:
Paper
Ensure that the paper loaded is genuine HP paper and that the correct paper type is selected on the front panel 
and in the driver.Related Topics
•Color consistency problems•Long-term color bleeding (glossy paper)•Color accuracy configuration•Additional color accuracy information
 
						

							Color consistency problems
• Some paper may discolor or change with age. Check that your paper is fresh and has been stored correctly.
• If the environmental conditions you are printing in change rapidly, you may see changes in the color consistency. By reducing the time the print stays in extreme environmental conditions after being printed 
(especially very high humidity) you can reduce the color consistency problems.
• There may be color changes between images printed on your printer and other types of HP Designjet printers.  This is quite normal because the other printers use different inks.
Long-term color bleeding (glossy paper)
High ambient humidity at your location could cause the colors to bleed into the paper making the lines fuzzy and 
bleary. 
• Change the paper that you are printing with or remove the printer from the high humidity conditions.
 
						

							Color accuracy configuration
The configurations of the printer defines how ink is applied to each type of paper. Use the information in the 
following table to configure your printer and software for best color accuracy.
Location of 
setting
Setting description
Selection
Ink menu Color Calibration > Calibrate  PaperSet to match the paper type loaded in the printer. 
See Paper types
.
 
						

							Additional color accuracy information
The means of accurately managing the colors printed by your printer vary with the software application and driver 
being used. Refer to the following documentation:
• On-line documentation in the drivers shipped with your printer.
• If you cannot find any reason for the discrepancy, before getting help, find out for which CMYK printer inks the colors have been specified.
 
						

							Ink supply problemsMost of the problems that you could encounter when working with HP ink supplies can be solved with guidance 
from the front panel. The only exception to this is the Unknown printhead error
. A full list of front messages is 
supplied in  Message descriptions
.
Printhead problems after replacementIf, after replacing the printheads, the printer complains about wrong or missing printheads, perform the following 
steps:
• Check that you have removed the protective tape from the printhead.
• Insert the printhead into the carriage assembly, but this time close the cover using the latch.
• Replace the printhead with a new one, see  Printhead replacement
.
Problems inserting the ink cartridge1. Make sure that you have the correct HP ink supplies ink cartridge.
2. Make sure that the cartridge is the correct color for that slot.
3. Make sure the cartridge is in the correct orientation, with the color-coded label at the top.Never clean inside the ink cartridge slots.Problems inserting the printhead1. Make sure that you have the correct HP ink supplies printhead.
2. Make sure that the printhead is the correct color for that slot.
3. Make sure that the printhead is in the correct orientation.
See Printhead replacement
 for further details.
 
						

							Unknown printhead errorAn unknown printhead error occurs when the one of the printheads is causing a 
problem but the system cannot detect which one it is. Whenever this happens the 
front panel displays this error message. The number of printheads with unknown 
errors will either be all the color printheads or all the printheads.
Use the following procedure to isolate the faulty printhead.
1. Select Replace Printheads from the front panel.
2. Open the carriage cover and remove all the printheads.
3. Reinsert the Cyan printhead only and close the carriage cover and the window.
4. Check the front panel—if the status of the Cyan printhead is  X or ?, the conclusion is that the Cyan printhead 
is faulty and must be replaced. If the status of the Cyan printhead is OK, the conclusion is that the Cyan 
printhead is working correctly. Repeat the process from  step 1 for each of the other printheads to identify 
which one is failing.
 
						

							Paper problems
•Paper
 
Details the general rules to follow to avoid paper problems.
• Clearing a paper jam
 
Describes how to clear a paper jam.
• Ink marks on the paper 
Details the way to solve ink mark problems: warped lines, blurred lines, marks or scratches on glossy paper.
• Paper loading problems
Explains what to do when the front panel keeps indicating that paper is misaligned or incorrectly positioned.
• Paper output problemsExplains what to do when the prints fall on the floor or do not stack correctly in the paper bin.
 
						

							PaperAlways make sure that you are using the appropriate paper for your image and that it is consistent with your 
software application. To ensure color accuracy and print-quality performance of the printer, use only paper types 
that have been certified for your printer.
Use of non-HP paper or HP paper not certified for your printer may significantly reduce the color and print quality 
of your images. For details of HP paper, see Paper types
.
 
						

							Clearing a paper jamIf the front panel displays this message:
There is probably paper jammed in the printer. Paper jams can have 
various causes:
• The paper is too thick or too thin for the printer, or is otherwise not supported.
• The paper is creased, misaligned, or bubbled.
• Too much ink is being placed on the paper causing it to cockle or bubble.
• The end of the roll of paper is glued to the core and won’t advance further.
• Pieces of paper or paper powder are clogging up the cutter guide or other moving parts.
See  Removing jammed paper
 for full instructions on how to clear jammed paper.
 
						

							Removing jammed paper
1. Open the window.
2. Switch the printer off at the front.
3. If necessary, carefully move the printhead carriage out of the way—if possible all the way to the enclosed area on the left or the right. Which way you are able to move it depends on where the paper is jammed.CAUTION:
When moving the printhead carriage, touch only the black plastic parts.
4. If necessary, carefully move the paper cutter out of the way to the left,  or to the right depending on where the paper is jammed (though if 
moved right it may block the paper path).
CAUTION:
The cutter is easily moved by holding it as close as 
possible to the guide running across the width of the 
printer. Be careful not to touch the metal slider bar that 
runs across the printer.
5. If necessary, lift the blue paper lever, to release any trapped paper.   Remember to lower it again when you have finished.
6. Carefully remove any of the jammed paper which you can easily lift up and out from the top of the printer.
7. Carefully pull the rest of the roll or sheet down and out of the printer. You may need to cut the edge of the roll  with scissors.
8. Check that the printing zone, including the cutter guide, the paper path, and the area where the printhead  carriage is parked, is clear and clean; remove any paper powder by brushing it away or with a vacuum 
cleaner.
CAUTION:
The area where the printhead carriage is parked can get quite dirty; be careful not to get ink on 
your hands.
9. Close the window and switch on the printer.
10. Wait for the printer to finish initializing.
Slider bar
Guide