HP Designjet 4500 Printer series - Manual (Page 281)

3. Check that the paper type selected in the front panel is the same as the paper type you are
using.
4. Perhaps you have adjusted the drying time at the front panel to speed up the printer output.
Select the
icon, then Select drying time, and make sure it is set to Optimal.
5. Allow the prints time to dry separately; do not cover or stack them.
Lines are slightly warped
The paper itself may be warped. This can happen if it has been used or stored in an extreme
environment. See Environmental specifications.
Color accuracy
There are two basic requirements for color accuracy:
1. Ensure that your paper type has been calibrated, which will give you consistency from print to
print, and from printer to printer. See Perform color calibration.
2. Select suitable options in your application: see How do I... (color topics).
NOTE If you are not using PostScript, remember that your printer may be configured to use
one of its internal pen palettes instead of your software's palette (which is the default). See
Pen settings seem to have no effect.
Color accuracy using EPS or PDF images in page layout
applications
Page layout applications such as Adobe InDesign and QuarkXPress do not support color
management of EPS, PDF, or grayscale files.
If you have to use such files, try to ensure that the EPS, PDF, or grayscale images are already in the
same color space that you intend to use later on in Adobe InDesign or QuarkXPress. For instance, if
your final goal is to print the job in a press that follows the SWOP standard, at the time of creating
the EPS, PDF or grayscale you should convert the image into SWOP.
PANTONE color accuracy
Spot colors are special premixed inks to be used directly in the press, and the best–known spot
colors are PANTONE colors.
If you have the PostScript model, your printer provides a facility called Automatic PANTONE
Calibration, which can easily match most of the PANTONE Solid Coated spot colors. When an
application sends a PANTONE color to print, it sends the PANTONE name together with its own
estimate of equivalent CMYK values. The Automatic PANTONE Calibration facility recognizes the
PANTONE name and converts it to CMYK in a way that depends on the printer model and the
selected paper type, enabling the color to be rendered with greater precision than is possible with the
generic CMYK values sent by the application.
Even when using Automatic PANTONE Calibration, you cannot expect the printer to match the
PANTONE colors exactly. Your printer is certified by Pantone for some papers, but this does not
mean that it can reproduce 100% of the PANTONE colors.
ENWW Lines are slightly warped 267
The problem is... (print
quality topics)