Troubleshooting F-16
CADJET
®
3D User Guide
These limits are imposed by the Windows 95 Graphics Device Interface (GDI). The
limitation of 53" is based upon a 16,000 pixel limit for a vector. The printer has a resolu-
tion of 300 Dots Per Inch (DPI). To find the largest size divide 16,000 by 300 to get the
size in inches. (53.333"). The limitation of 109" is for the size of the digital word that is
sent between the application and the driver. This word is 16-bits long. The maximum
positive value that can be placed in a 16-bit word is 32,767. Therefore, by dividing 32,767
by 300 we get 109.223". Many Windows applications limit the maximum print size to "C"
or "D" size due to the way that they map their internal coordinate system to memory.
Some applications which limit maximum print size are listed below:
Microsoft Word:
22" x 22"
Micrographx Designer:
68" maximum
Lotus 123:
17" x 22"
Ashlar Vellum:
101" maximum
Microsoft Project: 36" x 61"
Adobe PageMaker:
42" x 42"
QuarkXPress:
48" x 48"
CorelDRAW:
30" x 30"*
*(TIFF files are limited to 11" x 17")
*Note: This is a 30" x 30" page size, and is relevant to Corel 5.0 applications only.
CorelDRAW 6 is now capable of supporting page sizes beyond 36 x 36 inches to a
maximum of 150 feet x 150 feet. Due to a limitation in the HP DesignJet 650C Series
printers driver, the maximum attainable page size is approximately 55 x 55 inches.
Larger page sizes may be attainable if the resolution in the driver is lowered. This
limitation also applies to the HP 750C plotter, and 16 bit plotter drivers under Win95.
Programs that use their own internal drivers that bypass the Windows operating system
are not real common but they do exist. Also, other driver programs or RIPs were created
specifically to achieve special capabilities including: increased speed, scaling, color
correction / calibration, extended print length, etc.
These programs don't use their own O/S (operating system). But, they create certain
conditions that bypass those particular areas of the Windows O/S limitations. Some
programs with internal drivers to print from include: AutoCAD, MicroStation, FlexiSign
Pro, PosterShop, CactusJet, etc. External printer driver RIPs are made by Pisa, Fiery
(EFI), ZenoGraphics, Intelligent Systems, Wasatch, etc.
It should also be noted that this limitation is only because of the GDI limitations.
ENCAD plotters do not have this limitation. Length limitations are a function of software
or RIP parameters. Any conflicts that do not use the GDI interface should be directed to
the software vendors.