HP L 5 manual Mode 2 Direct by Plane

Example:

?*v6W 00 01 04 04 04 04	# Binary data for CID
	represented in hexadecimal.
	Sets color space to RGB, pixel
	encoding mode to 1, palette size
	to 16 (4 bits to address palette
	index). Last 3 bytes ignored.
?*r1A	# Start raster.
?*b1W45	# Most significant nibble selects
	palette index 4 for the first pixel.
	Second pixel is set to index 5.
	Move to the next row.
?*b1W6A	# First pixel is index 6, second
	pixel is index 10. Move to the
	next row.
?*b1W03	# First pixel is index 0, second
	pixel is index 3. Move to the next
	row.
MODE 2: DIRECT BY PLANE

In mode 2, the color raster data for each row is downloaded by sequential planes, but the pixel color is directly specified, rather than forming an index into the palette. The underlined block below defines the actual primaries for pixel 3 of row 1.

?*b#V	row 1	red plane	r	r	r	r	r
?*b#V		green plane	g	g	g	g	g
?*b#W		blue plane	b	b	b	b	b
?*b#V	row 2	red plane	r	r	r	r	r

EN Using Color Modes (Color LaserJet, 5, 5M, DeskJet) B-11