HP Latex 560 User Guide - Page 122

Substrate-advance check plot, Substrate advance adjustment while printing

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4. Substrate-advance check plot To fine-tune the quality of your print, you may need to adjust the rate at which the substrate advances. The substrate advance determines the placement of dots on the substrate. If the substrate is not advanced correctly, light or dark bands appear in the printed image and the grain in the print may increase. You can modify the substrate advance from the RIP or front panel with the Substrate Advance parameter in the substrate preset. To print the substrate-advance check plot: 1. Use the same substrate type that you were using when you detected a problem. 2. Check that the selected substrate type is the same as the substrate type that is loaded into the printer. 3. Go to the front panel and press . The substrate-advance check plot consists of several columns with a number at the bottom of each one. Locate the lightest of the columns and enter its number into the Substrate Advance parameter for the current substrate preset. The value chosen in this example should be "−6". NOTE: Minor substrate-advance problems (±2 around the 0 value) are unlikely to result in any print-quality problem, especially with print modes of more than 8 passes. Substrate advance adjustment while printing If you are using no more than six passes, you can fine-tune the substrate advance while printing: press , then Adjustments > Adjust substrate advance. Select a value of change from −10 mm/m to +10 mm/m (or mils/ inch). To correct light banding, decrease the value. To correct dark banding, increase the value. If you are using eight passes or more, a wrong advance adjustment will not produce banding but graininess, which is harder to assess visually. Therefore, in this case you are recommended to use only the adjustment plot. When you have chosen a value and pressed OK, the rest of your job will be printed with that value, but it will be reset to zero at the end of the job. Add the value found to the Substrate Advance value in the preset to print all future jobs with the new setting. What to do if problems persist If you still experience print-quality problems after applying the advice in this chapter, here are some additional tips to consider: ● Try selecting a higher print-quality option in your RIP software, by increasing the number of passes. ● Check that your printer firmware is up to date. See Firmware update on page 170. 116 Chapter 5 Troubleshoot print-quality issues ENWW

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4. Substrate-advance check plot
To fine-tune the quality of your print, you may need to adjust the rate at which the substrate advances. The
substrate advance determines the placement of dots on the substrate. If the substrate is not advanced correctly,
light or dark bands appear in the printed image and the grain in the print may increase.
You can modify the substrate advance from the RIP or front panel with the Substrate Advance parameter in the
substrate preset.
To print the substrate-advance check plot:
1.
Use the same substrate type that you were using when you detected a problem.
2.
Check that the selected substrate type is the same as the substrate type that is loaded into the printer.
3.
Go to the front panel and press
.
The substrate-advance check plot consists of several columns with a number at the bottom of each one. Locate
the lightest of the columns and enter its number into the Substrate Advance parameter for the current substrate
preset. The value chosen in this example should be “−6”.
NOTE:
Minor substrate-advance problems (±2 around the 0 value) are unlikely to result in any print-quality
problem, especially with print modes of more than 8 passes.
Substrate advance adjustment while printing
If you are using no more than six passes, you can fine-tune the substrate advance while printing: press
,
then
Adjustments
>
Adjust substrate advance
. Select a value of change from −10 mm/m to +10 mm/m (or mils/
inch). To correct light banding, decrease the value. To correct dark banding, increase the value.
If you are using eight passes or more, a wrong advance adjustment will not produce banding but graininess,
which is harder to assess visually. Therefore, in this case you are recommended to use only the adjustment plot.
When you have chosen a value and pressed
OK
, the rest of your job will be printed with that value, but it will be
reset to zero at the end of the job. Add the value found to the Substrate Advance value in the preset to print all
future jobs with the new setting.
What to do if problems persist
If you still experience print-quality problems after applying the advice in this chapter, here are some additional
tips to consider:
●
Try selecting a higher print-quality option in your RIP software, by increasing the number of passes.
●
Check that your printer firmware is up to date. See
Firmware update
on page
170
.
116
Chapter 5
Troubleshoot print-quality issues
ENWW