HP LaserJet 4100 HP PCL/PJL reference (PCL 5 Printer Language) - Technical Ref - Page 79

Print Direction Command The Print Direction command rotates the logical page coordinate system with respect to the current orientation without performing a page eject. This rotation is performed in 90° increments in a counterclockwise direction. This allows printing in four directions on the same page. ? & a # P # = 0 - 0° rotation. 90 - 90° ccw rotation. 180 - 180° ccw rotation. 270 - 270° ccw rotation. Default = 0 Range = 0, 90, 180, 270 (Other values ignored) Changing the print direction causes the following: z The print origin moves with the logical page rotation. For example, rotating a default page (portrait orientation, 0° print direction) 90° causes data to print in the landscape direction across the "portrait" page. z The margins are translated (when the print direction changes by 90°, the left margin becomes the new top margin, the former top margin becomes the new right margin, etc.) z The cursor position remains at the same physical location. z All subsequent printing (characters, area fill patterns, raster images) is rotated to coincide with the new print direction. z Any current raster graphics end when the print direction changes. z Print Direction does not default HMI. Note The Print Direction Command does not affect HP-GL/2 vector graphic images. HP-GL/2 graphics can be rotated only with the Orientation command (?&l#O) or the HP-GL/2 "RO" command. EN Print Direction Command 5-9