HP LaserJet 4100 HP PCL/PJL reference (PCL 5 Printer Language) - Technical Ref - Page 111

Table 20-11 Related Commands AA, Arc Absolute AR, Arc Relative BR, Bezier Relative BZ, Bezier Absolute CI, Circle RT, Relative Arc Three Point LA, Line Attributes LT, Line Type PW,Pen Width Group The Vector Group The Line and Fill Attributes Group BR, Bezier Relative This command draws bezier curves using relative coordinates. This command uses the current pen position as the first control point, and specifies the other three control points as relative increments from the first point. BR X1,Y1, X2,Y2,X3,Y3,...[X1,Y1, X2,Y2,X3,Y3]] Parameter Format X1, Y1... (control points) current units Functional Range Default -223 to 223 - 1 no default The BR command uses the current pen location and three specified control points to draw a bezier curve. After each new Bezier, the last control point of the previous curve becomes the first control point of the next Bezier. All curve control points are relative to the first control point of that curve. For example, points 1, 2, and 3 of the example are relative to the starting point, while points 4, 5, and 6 are relative to point 3. EN BR, Bezier Relative 20-19