HP DesignJet T830 User guide - Page 170

Prepare the printer and the paper to print the diagnostic sheet

Page 170 highlights

Prepare the printer and the paper to print the diagnostic sheet Turn on your printer and wait until it is functioning. Then select the paper on which the diagnostic plot is going to be printed (you can reuse the diagnostic plot at any time in the future, if it is saved carefully). Ideally, the diagnostic plot should be printed on heavyweight paper; do not use recycled or tracing paper. The size of the diagnostic plot is: ● 914 mm (36 in) printer: 610 × 914 mm (24 × 36 in) ● 610 mm (24 in) printer: 610 × 610 mm (24 × 24 in) You can print on a roll or a single sheet, which should be of the maximum width accepted by the printer. You can print the diagnostic plot from the front panel: touch , then Internal prints > Scanner IQ plot or Image Quality Maintenance > Scanner IQ plot > Printer maintenance > Scanner Diagnostic. Visual check for errors while printing the diagnostic sheet Once the diagnostic plot is printed, the first step is to check that all the patterns included in it are correctly printed. The diagnostic plot, if printed correctly, should look like this: Diagnostic plot for 914 mm (36 in) printer Diagnostic plot for 610 mm (24 in) printer Some of the most common defects that may appear in a printed diagnostic plot are described below. If you find any of these problems, you should follow the recommended recovery procedure. See the Troubleshooting printquality issues on page 136. Once the printer has been diagnosed and it is working correctly, you can reprint the diagnostic sheet as described in Prepare the printer and the paper to print the diagnostic sheet on page 166. Resolution By looking at pattern F you may find problems with the printer's resolution for the loaded paper. Usually, this test does not reveal a printer problem, but a defect in the paper, which may not be suitable for printing the diagnostic sheet with the required quality. Here is what you should see if all is well, followed by two defective examples. 166 Chapter 18 The scanner diagnostic plot ENWW

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Prepare the printer and the paper to print the diagnostic sheet
Turn on your printer and wait until it is functioning. Then select the paper on which the diagnostic plot is going to
be printed (you can reuse the diagnostic plot at any time in the future, if it is saved carefully). Ideally, the
diagnostic plot should be printed on heavyweight paper; do not use recycled or tracing paper. The size of the
diagnostic plot is:
914 mm (36 in) printer: 610 × 914 mm (24 × 36 in)
610 mm (24 in) printer: 610 × 610 mm (24 × 24 in)
You can print on a roll or a single sheet, which should be of the maximum width accepted by the printer.
You can print the diagnostic plot from the front panel: touch
, then
Internal prints
>
Scanner IQ plot
or
Image
Quality Maintenance
>
Scanner IQ plot
>
Printer maintenance
>
Scanner Diagnostic
.
Visual check for errors while printing the diagnostic sheet
Once the diagnostic plot is printed, the first step is to check that all the patterns included in it are correctly
printed. The diagnostic plot, if printed correctly, should look like this:
Diagnostic plot for 914 mm (36 in) printer
Diagnostic plot for 610 mm (24 in) printer
Some of the most common defects that may appear in a printed diagnostic plot are described below. If you find
any of these problems, you should follow the recommended recovery procedure. See the
Troubleshooting print-
quality issues
on page
136
. Once the printer has been diagnosed and it is working correctly, you can reprint the
diagnostic sheet as described in
Prepare the printer and the paper to print the diagnostic sheet
on page
166
.
Resolution
By looking at pattern F you may find problems with the printer’s resolution for the loaded paper. Usually, this test
does not reveal a printer problem, but a defect in the paper, which may not be suitable for printing the diagnostic
sheet with the required quality.
Here is what you should see if all is well, followed by two defective examples.
166
Chapter 18
The scanner diagnostic plot
ENWW