BPJ0%LEHIGH.BITNET@ibm1.cc.lehigh.edu (Bin) (05/07/89)
Hi, I'm currently printing out some Dpaint drawings using the HP-Laserjet driver on WB1.3 with smoothing in Black and White. Using cmd I dump it to a file which I upload to the machine connected to the HP and I print it at 300 dpi. However there's a problem. It draws half the screen on one page then display '20' on the display. On hitting reset it proceeds to print out the rest of the picture on another page and also feeds out another blank page as bonus. Is there a way to correct this so that the page is printed on a single piece of paper, instead of three? Thanks. Bin
mikes@lakesys.UUCP (Mike Shawaluk) (05/08/89)
In article <14869@louie.udel.EDU> BPJ0%LEHIGH.BITNET@ibm1.cc.lehigh.edu (Bin) writes: >However there's a problem. It draws half the screen on one page then >display '20' on the display. On hitting reset it proceeds to print out >the rest of the picture on another page and also feeds out another blank >page as bonus. The '20' error code on the LaserJet indicates that the printer has run out of memory. You didn't say whether you had a LaserJet, LaserJet Plus, or a Series II, all of which have different configurations and/or amounts of memory, but on most models, there simply isn't enough internal memory to hold an entire page of 300 dpi graphics (think about it; at 300 dpi in both directions, if the printable page is 8" by 10", that's 7.2 million dots, which is 900K bytes; if your printer only has 512K, it can't hold the entire image, and laser printers, by their nature, must buffer an entire page worth of output). As for the extra blank page at the end, I would say that the printer driver is putting out an extra form feed, but I don't think that that problem is the one you are the most worried about. My only suggestion for the first (main) problem would be to either (a) scale down the physical size of your actual printout, so that it uses fewer pixels (which will, of course, result in poorer shading and dithering), or (b) switch to a lower resolution, such as 150 dpi (which will have the same results as above). The other solution isn't so much a solution as an alternative, which is to get yourself a DeskJet or DeskJet Plus, which is an inkjet printer from H-P that prints at the same resolutions as their LaserJet line (although quite a bit slower), but because of the printing technique, doesn't have to buffer the entire image in internal RAM before printing, and can thus do what the LaserJet cannot, which is produce a full-page 300 dpi graphics dump. And for a list price of $799! Oh, and a fourth alternative is also there, if your LaserJet happens to be a Series II unit; buy more RAM for it (but the extra RAM will cost you more than it would to buy a DeskJet!!!) -- - Mike Shawaluk (mikes@lakesys.lakesys.com OR ...!uunet!marque!lakesys!mikes) "Where were you on the night of August 12?"
ejkst@cisunx.UUCP (Eric J. Kennedy) (05/14/89)
In article <606@lakesys.UUCP> mikes@lakesys.UUCP (Mike Shawaluk) writes: >The other solution >isn't so much a solution as an alternative, which is to get yourself a >DeskJet or DeskJet Plus, which is an inkjet printer from H-P that prints at >the same resolutions as their LaserJet line (although quite a bit slower), >but because of the printing technique, doesn't have to buffer the entire >image in internal RAM before printing, and can thus do what the LaserJet >cannot, which is produce a full-page 300 dpi graphics dump. And for a list >price of $799! I recently ordered a DeskJet Plus (should be here this week...) and I did a little experimenting with the deskjet printer driver, the laserjet printer driver, and CMD. It turns out that everthing I "printed" (to a file using CMD) was exactly the same whether I used the deskjet driver or the laserjet driver. What gives? I know the two printers use the same "language", so why are there two different drivers? (They really are different drivers, too. even different sizes.) They didn't do anything differently in the tests I ran. -- Eric Kennedy ejkst@cisunx.UUCP
daveb@cbmvax.UUCP (Dave Berezowski) (05/17/89)
In article <18028@cisunx.UUCP> ejkst@unix.cis.pittsburgh.edu (Eric J. Kennedy) writes: >I recently ordered a DeskJet Plus (should be here this week...) and I >did a little experimenting with the deskjet printer driver, the >laserjet printer driver, and CMD. It turns out that everthing I >"printed" (to a file using CMD) was exactly the same whether I used the >deskjet driver or the laserjet driver. What gives? I know the two >printers use the same "language", so why are there two different >drivers? (They really are different drivers, too. even different >sizes.) They didn't do anything differently in the tests I ran. > The HP_DeskJet has a character set which fully supports the Amiga extended character set (codes 160 - 255) while the HP_LaserJet does not. That is the only major difference.