HP DesignJet 510 1067 mm User Manual

							Troubleshooting procedureWorking through the Troubleshooting procedure should always be your first action when you encounter print 
quality problems. Refer to the Troubleshooting flowchart
 for a description of the sequence of processes used to 
complete troubleshooting procedure.
It is important that the paper loaded for this procedure is exactly that used when you encountered print quality 
problems, type (for example, glossy paper) and size. If you use a different kind of paper or a different size, you 
stand less likelihood of resolving the problem.
Running the Troubleshooting Utility
1. From the main front-panel menu, select the  Ink menu ( ) and press  Enter.
2. Select  Troubleshooting and press  Enter. 
3. The printer first checks to see whether the  printheads are aligned. Misalignment of the 
printheads is a common cause of print quality 
problems. If they are not aligned, you are prompted 
to accept  Printhead alignment
. This procedure 
requires a few centimeters of paper loaded and takes several minutes to perform.
NOTE: Note that you do not have to interpret the patterns printed by the Printhead Alignment routine. 
4. If the printheads do not seem to require alignment, the printer prints  Diagnostic Print A. See Diagnostic Print 
A interpretation
 for full details of how to use this diagnostic print.
 
						

							Diagnostic Print A interpretation
Diagnostic Print A contains several blocks of color and a block of thin black 
broken lines (the lines are actually very much closer than those represented 
here).1. Examine the broken lines in Diagnostic Print A carefully and indicate whether 
there are problems with them. The sorts of problems to look for here are:
• Jaggedness or serrations in the thin lines, like this:  ; the thin lines should be straight, 
though not necessarily perfectly aligned. The irregularities that are significant 
extend along the whole of the length of the lines. Shorter irregularities, 
arranged in columns, can be ignored at this stage.
2. Examine the blocks of color in Diagnostic Print A  carefully and indicate whether 
there are problems with them. The sorts of problems to look for here are:
• White streaks or bands in the solid blocks.
3. If you indicate that there is a problem with the dashed lines in Diagnostic Print A,  you are prompted to use the  Advance calibration
 routine; your printer will be at step 3 of the routine (if you don’t 
want to continue with calibration, press the  Cancel key).
4. If there are problems in the blocks of color in Diagnostic Print A, for example white streaks or bands, the printer will  try to clean the printheads that have the problem. A printhead can be cleaned up to three times this way; after that 
it cannot be cleaned and you will be told; the  Troubleshooting routine will finish. In that case we recommend that 
you try to reprint your print, and then, if necessary, start the  Troubleshooting routine again.
After cleaning the printheads, the printer reprints the blocks of color (but not the black lines) in Diagnostic Print A, 
and asks you to examine it again (as in step 1).
5. If there are no problems the first time you print Diagnostic Print A, the printer prints  Diagnostic Print B. See 
Diagnostic Print B interpretation
 for full details of how to use this diagnostic print.
Diagnostic Print A
Ignore this
black bar
 
						

							Diagnostic Print B interpretation1. For each color in the pattern in Diagnostic Print B, you are asked about the 
quality—look for missing lines. If you answer that a color is defective, the 
printer tries to clean that printhead.
If the printhead cleaning process completes,  Diagnostic Print B is printed 
again and you are asked the same questions again.
2. Afterwards, if problems with images remain, use the  Troubleshooting 
procedure again.If none of the patterns or blocks in the two  Diagnostic Prints shows any problem, it could be that your print 
quality problem is caused by a wrong setting in your software, or perhaps the job should have been printed with 
the  Print quality  set to Best instead of  Normal or Draft .
If the  Troubleshooting  routine didn’t indicate that printhead alignment was necessary, you can select  Align 
printheads  in the Ink menu to try to solve any further print quality problems.
Diagnostic Print B
Ignore these
solid bars
 
						

							Troubleshooting flowchart
The following diagram shows the flow of the troubleshooting procedure.
Printer checks 
whether Printhead 
Alignment is required Printer recommends 
Printhead alignment
 
(Standard or Special)
Printer prints 
Diagnostic Print A 
including black lines
Printer asks questions  about Diagnostic  Print A
Wrong paper advance. Printer recommends Advance calibration
Printheads need 
cleaning. If possible 
printer tries to clean  printheads
Printer prints 
Diagnostic Print A 
without black linesIf printheads have 
been cleaned three 
time Troubleshooting  finishes
Printer prints 
Diagnostic Print B 
without black lines
Printer asks if Cyan, 
Magenta, Yellow and  Black Patterns in 
Diagnostic Print B are 
OK
 If possible printer tries to clean printheads
No problems detected
Star t
Printheads are OK 
after first printing of  Diagnostic Print A
Troubleshooting 
completed successfully
Ye s
No
Ye sYe s
No
NoPrinter prints 
Diagnostic Print B 
Indicates that 
troubleshooting has 
completed but further 
procedures are required 
to solve the problemIndicates that 
troubleshooting has 
completed successfully 
and there no problems
 
						

							Advance calibrationIt is important that the paper loaded for this calibration is exactly that used for normal printing, both in quality (for 
example, glossy paper) and in width (for example, A0 or 36 in). Either roll or sheet paper can be used.
The routine prints a pattern and then cuts the roll (the cutter must be set to On—see Controlling the cutter
) or 
ejects the sheet; it requires paper that is at least 65 cm/25.5 in long and at least 50 cm/19.7 in wide. You must 
then reload that piece of paper  as a sheet, so that the printer can accurately measure the pattern, and make 
whatever adjustments are appropriate to the amount it advances between printing swaths of data. (See  Loading 
sheet paper
)
The pattern printed is solely for the use of the printer; you are not expected to relate any of its characteristics to the 
quality of your images.1. From the main front-panel menu, with the correct paper loaded, select the Paper menu ( ) and press Enter .
2. Select  Advance calibration  and press Enter.
3. Select  Create pattern  and press Enter. 
The printer prints its calibration pattern (as represented here) and 
cuts or ejects the paper.
4. Load the sheet printed side up with the dotted line at the top (that is,  rotated 90º). 
5. Now select  Measure pattern and press  Enter.
The printer reads the calibration pattern and makes the appropriate 
internal adjustments.
These  Advance calibration values
 are used whenever you print on the 
same type of paper until you have used the Advance calibration twice 
more with different types of paper.
Direction of paper while 
printing (creating pattern)
Direction of paper when 
loading (measuring pattern)
 
						

							Advance calibration values
The printer stores the advance calibration values of the last two 
different types of paper used for the calibration. When you print, the 
printer tries to match the paper you have selected to the stored 
values. If there is a match the printer applies the stored Advance 
calibration values.
If the type of paper you are using has not been used for either of the 
last two Advance calibrations, the printer uses a set of default values 
for your paper.
The Restore factory option of the Advance calibration menu erases any stored advance calibration values from 
the printer memory. This means that until you run the advance calibration again the printer will use the factory 
default values for all types of paper.
 
						

							Stepped linesWhen you look at the image you have printed there are ‘stepped lines’ in the borders of arrows and diagonal 
lines. The lines should be straight with no stepping.
The following is an example of what you might see if you have problems with stepped lines.
To solve this problem:
1. Increase the dpi setting by changing the print quality to  Best in the front panel and driver software.
2. The problems may be inherent in the image you are trying to print. Try to improve the image with the  application  that generated the file.
 
						

							Incomplete linesWhen you look at the image you have printed there are:
• Missing or faint lines.
• Printed characters with missing parts.
The following is an example of what you might see if you have problems with incomplete lines.
See the Troubleshooting procedure
 for instructions on how to solve this problem.
Missing parts of text; this 
should say TEST
TEST
 
						

							Color alignmentWhen you look at the image you have printed:
See the Troubleshooting procedure
 for instructions on how to solve this problem.
The colored lines are printed 
double and they are the wrong 
colors Vertical lines are misaligned or 
fuzzy (not smooth)
The borders of colored blocks 
are overlapped and the 
overlapping areas have 
different colors in them.
 
						

							Horizontal bandingWhen you look at the image you have printed there are light or dark lines on the image, these are particularly 
highlighted in high density ink areas. This problem is known as banding.
IMPORTANTBanding can occur to a certain degree in Fast and Normal mode when printing high 
density prints. To obtain the best image always print in Best Mode.
The following is an example of what you might see if you have problems with banding.
See the  Troubleshooting procedure
 for instructions on how to solve this problem.
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