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PCL

VERTICAL MOTION INDEX ( VMI )

Legend Ec= [Ctrl] [P] [Esc] in DOS EDIT

VERTICAL MOTION INDEX
     
     The Vertical Motion Index ( VMI ) command designates
     the distance between rows in 1/48 inch increments (The
     vertical distance the cursor will move for a line feed
     operation).
     
     This command affects the line feed and half line feed
     spacing.
     
     The factory default VMI is 8 which corresponds to 6
     lines per inch. The VMI command should always be sent
     after any page orientation command.  Changes made in
     the default top margin or disabling perforation skip
     region at the bottom of the page will result in a
     change to the default vertical printable area.
     
     To invoke the VMI command, type Ec&l#C.  The l is
     equivalent to a lower case L.
     The # designates a variable that is derived from the
     following formula:
     
     (Vertical Printable Area / Desired Lines Per Page) x 48
     = #
     

VERTICAL PRINTER AREA DEFAULTS

     1.)Portrait Letter (8 1/2 x 11)    = 10 inches
     2.)Portrait Legal (8 1/2 x 14)     = 13 inches
     3.)Landscape letter (11 x 8 1/2)   = 7.5 inches
     4.)Landscape letter (14 x 8 1/2)   = 7.5 inches
     
     
     Example:    To designate 66 lines per page on letter
                 size paper, portrait orientation.
     
                 10 inches / 66 lines per page x 48 = 7.27
     

            Copyright  Hewlett-Packard Co. 1993
   The information contained herein is subject to change
                      without notice.
   Hewlett-Packard shall not be liable for incidental or
  consequential damages in connection with the use of this
                         material.

See also:

file: /Techref/language/pcl/lj1203.htm, 2KB, , updated: 2005/12/20 13:25, local time: 2012/2/10 04:27,
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Robotics nuts!

Check out http://users.frii.com/dlc/robotics/projects/botproj.htm from Dennis Clark. This guy ROCKS! He has made (and sells but also releases code, docs, etc...) for a number of cool little robotic modules including whiskers, IR proximity detect and remote control, Sonar proximity detect, PWM, Servo, compass. Most of these use the little PIC 12C508 controller which costs basically nothing and is soooo tiny.
The 4 servos, 2400 baud serial servo controller is a wonder of magic and he sells the programmed chip for $8. Wow!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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