daveb@cbmvax.UUCP (Dave Berezowski) (02/23/88)
The following V1.2 printer drivers are being uploaded to comp.binaries.amiga: EpsonQ, HP_PaintJet, Okidata_293I, and Xerox_4020. They are intended as stop gap measures until the V1.3 drivers are available. Notes on the specific drivers follow. EpsonQ (24-pin Epson compatible) -------------------------------- 1. Dot matrix b&w/color printer (text and graphics). 2. Drives all EpsonQ (LQ1500, LQ2500, etc.) compatible printers. 3. Densities supported are 90(1), 120(2), 180(3) and 360(4) dpi. 4. A PaperSize of 'Wide Tractor' selects a maximum print width of 13.6 inches (for wide carriage printers). 5. A PaperType of 'Single' uses only 16 of the 24 pins, whereas a PaperType of 'Fanfold' uses all 24 pins. The 'Single' option is useful for those printers which have a weak power supply and cannot drive all 24 pins continuously. HP_PaintJet ----------- 1. Ink jet b&w/color printer (text and graphics). 2. Data sent to printer is RLE (Run Length Encoded) to speed up printouts. Okidata_293I ------------ 1. Dot matrix b&w/color printer (text and graphics). 2. Drives 292 or 293 using the IBM interface module. 3. Linefeeds # of vertical dots printed (-1/3 dot if PaperType = Single) 4. Densities supported are 120(1) and 240(2) dpi. 5. A PaperSize of 'Wide Tractor' selects a maximum print width of 13.6 inches (for wide carriage printers). Xerox_4020 ---------- 1. Ink jet b&w/color printer (text and graphics). 2. Data sent to printer is RLE (Run Length Encoded) to speed up printouts. 3. This driver is IDENTICAL to the Diablo_C-150 driver EXCEPT it outputs all black dots TWICE. This is a special feature of this printer and produces much more solid, darker black shades. Please note that some printing time overhead results from this feature; if you don't want it use the Diablo_C-150 driver. 4. Densities supported are 121x120(1) and 242x240(2) dpi. Selecting a density of 2 or higher really doesn't give you true 240 dpi resolution since the Xerox_4020 only has 121 x dots per inch. Instead this mode tells the printer to go into it's pseudo 240 dpi mode. Here, it outputs a line of dots at 121 dpi; moves the paper up 1/240 of an inch and outputs the line again (shifted to the right by 1/240 of an inch). This produces much more vibrate colors and gives the illusion of more resulution. One drawback is that large areas of solid colors (red, green, and blue specifically) tend to over-saturate the paper with ink. 5. A PaperSize of 'Wide Tractor' selects a maximum print width of 9.0 inches (1080 dots) (for wide roll paper).