User manual HP DESIGNJET 750C PLUS

[. . . ] R HP DesignJet 700 Plotter HP DesignJet 750C Plus Plotter User's Guide n Copyright Hewlett-Packard Company 1996 Manual part number C4705-90031 First edition, September 1996 Printed in Europe Customer re-order number C4705-60021 All rights are reserved. No part of the document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company. Bi-Tronics, HP-GL and HP-GL/2 are trademarks of Hewlett-Packard Company. Microsoft and MS-DOS are registered trademarks of Microsoft Corporation. [. . . ] By choosing Best, you will get the highest possible quality for the media type, but the printing time will be longer. However, your plotter's output speed, quality and particularly its resolution, also varies according to: 750C Plus Whether Sharp lines is set to Auto, On or Off (see page 5-14) on the front panel or in your software. The specification option when you loaded the media (see page 3-3). 5-11 5 PLOT APPEARANCE Controlling a Plot's Overall Appearance Choosing an Appropriate Print Quality The resolution at which your plot will be printed is summarized in the table below. Resolution in dpi Print Quality Q ality Setting Fast Normal Best 1 Or DesignJet 750C Plus Monochrome Color DesignJet 700 Monochrome 300 x 300 600 x 6001 600 x 6001 300 x 300 300 x 300 600 x 6002 300 x 300 600 x 6001 600 x 6001 300 x 300, depending on your driver resolution setting or the software application you have used. 2 Addressable dpi with Sharp lines set to Auto or On, using opaque bond, coated paper and matte film only. This resolution depends on the type of image created in your software application. Recommended combinations of print quality and media type are given in the table on page 3-6. To get the very best print quality for images and drawings from graphics packages (other than CAD drawings or other line drawings): When loading the paper, specify "Heavy coated paper" on the front panel, rather than "Coated paper". Set Print Quality to "Best". 5-12 Controlling a Plot's Overall Appearance Choosing an Appropriate Print Quality Affects next plot sent. Software setting takes priority. To Change the Print Quality 1 Use the front-panel Print Quality key to toggle between the three print quality settings. Best Normal Fast Print STATUS Quality Ready to plot If you are using one of the software drivers supplied with the plotter, you can also make this setting (or an equivalent) within the driver. In this case, the driver setting will override the front-panel setting. The front-panel setting will, however, remain available as the default value, and the front-panel light displayed will not change. 0027 2 Send the plot from your computer. You cannot change the print quality setting for plots already in the plotter's queue. 5-13 5 PLOT APPEARANCE Controlling a Plot's Overall Appearance Choosing an Appropriate Print Quality Device setup Sharp lines Improving Line Quality and Graphics Detail The Sharp lines option refines the print quality of line drawings by smoothing the fine gradations along the angles and curves of the printed image. Only plots that have color content are affected by the Sharp lines option to produce addressable 600 dpi resolution. Monochrome images are not affected by the Sharp lines option as these are produced in true 300 or 600 dpi resolution, depending on the print quality that you have selected. The Sharp lines option has has three settings, Auto, Off and On, and can be set either through the front-panel menu or HP supported Windows drivers. With Sharp lines set to Auto you will always get best quality color plots, except when you send the following files: Mixed lines and scanned color images. For these files it is recommended that the Sharp lines default setting is changed, depending on your preference for image or line quality: Select On if you have a file which contains line and color images and you want the lines to be plotted in Best quality, even if there is possible degradation to the quality of the color image. Select Off if you have a file which contains line and color images and you want to optimize the quality of the color images. Select Off if the output speed of the plotter is more important than Best quality. Full menu mode Default: Auto 750C Plus 5-14 Controlling a Plot's Overall Appearance Choosing an Appropriate Print Quality 750C Plus Important For further information on Sharp lines see Troubleshooting, page 9-15. With the Sharp lines set to Auto or On in the front-panel menu, the plotter may not always produce an addressable 600 dpi plot. This may be because: You have not selected Best on the front-panel Print Quality key, refer to page 5-13. [. . . ] A programming language that controls jobs going to a printer or plotter. PML Printer management language. parallel interface A type of interface between computer and device. Generally faster than a serial interface. GLOSSARY pen Even though the plotter has no physical pens, the lines it draws match the attributes of a pen. platen The exterior part of the plotter on which the media rests before going into the media-entry slot. [. . . ]