HP 4 FAMILY - Manual (Page 48)

HP LaserJet 4ML
Printer
The HP LaserJet 4ML printer is similar to the HP LaserJet
4L printer, however, the 4ML includes PostScript and a
LocalTalk I/O for printing in the Macintosh environment.
The HP LaserJet 4ML printer also includes some new PCL
features: print model logical operation (ROP3) and pixel
placement, as described on the following pages.
The HP LaserJet 4ML supports the typefaces that the HP
LaserJet 4 printer supports. Several of the typefaces in the
HP LaserJet 4ML printer have additional support for the
Latin 2 and Latin 5 symbol sets (refer to Chapter 3,
“Internal Typefaces/Fonts and Symbol Sets,” for complete
font support information).
Feature Status Comments
Paper (Job) Size Command Modified An additional parameter (101) has been added to provide
support for custom size.
Logical Operations New Modifies the print model to allow logical operations (such as
AND, OR, XOR, NOT) to be performed on source, texture,
and destination.
Pixel Placement (PCL) New Allows user to select either grid intersection or grid
centered placement of pixels when rendering an image in
PCL.
Pixel Placement (HP-GL/2) New Allows user to select either grid intersection or grid
centered placement of pixels when rendering an image in
HP-GL/2.
Merge Control New Allows the user to use logical operations (ROP’s) in
HP-GL/2.
Table 2-4. PCL Feature Additions for HP LaserJet 4ML
2-12 Printer-Specific Differences