CompuServe Messages

#HP LaserJet Driver

    12-Apr-88 18:15:09
Sb: #HP LaserJet Driver
Fm: Leif Eriksen 73177,365
To: sysop (X)
Jamie, I have a few comments reguarding the HP LaserJet device driver. The device driver is causing a problem since it does a LaserJet reset before moving a drawing down to the printer. This is fine, even desirable, with the LaserJet+, because it is generally dedicated to one machine and has very limited amounts of RAM. However, with a LaserJet Series II, which can have a 2 or 4 megabyte upgrade board, on a network, it is unacceptable. Downloading a drawing on the network causes any resident forms or fonts to be cleared. Recommendation: Have the driver ask during configuration, if a reset is desired. Another problem is speed. While the parallel port is a slow medium for the large amount of data moved, it seems some improvements could be made. I have noticed on some drawings that the transmission time to the printer is small compared to the time take by AutoCAD to process vectors. And why some many passes? Recommendation: Don't display the text string "Processing Vector XXXXX" so often. I would guess that just the screen I/O is a large part of the time taken. How about writing "Processing Vector " just once and the vector number ever 100 or 200 or so. Also, could a larger data rasterizing area be used to reduce the number of passes? Another problem is that I also use an HP LaserJet+. This means I can get Full page graphics at 150 DPI or part page at 300 DPI. It is difficult to go to the configuration menu every time I want to switch between the two. Recommendation: Let resolution be a parameter entered at PRPLOT time. Request: If, or until, an option is provided to turn off the reset by the driver could you provide me with a release 9 patch to the HP driver that will disable the reset code from being sent? Thanks, Leif Eriksen