Misses printing at bottom at times

[Lynn Wakefield]

I have several programs that when printing to printer HP Photosmart C7200 Series, it won't print the last 1/4" to 1" of document at times. All my programs print OK every time on my desktop in the garage (DJ6988)

1) Running PBCC5.02, Toshiba Satellite, Vista home premium HP C7280
2) Garage PBCC5.02, Dell, Windows XP sp2, HP DJ6988

Sample:

#COMPILE EXE       'Prints a sheet with 100 x 100 grids
#DIM ALL
#CONSOLE OFF
FUNCTION PBMAIN () AS LONG
    LOCAL w,x,y,z AS LONG
    XPRINT ATTACH CHOOSE
    XPRINT WIDTH 2
    XPRINT FONT "New Courier",6,0
    XPRINT SET POS (75,75)
    XPRINT "100 x 100    pixs"
    '--------- col,row  to  col,row
    'XPRINT BOX (50,50) - (4850,6350)
   ' XPRINT WIDTH 6
    XPRINT WIDTH 2
    w = -1
    FOR x = 50 TO 6250 STEP 100  ' horiz lines
        INCR w
        IF (w MOD 5) = 0 THEN XPRINT WIDTH 8 : w = 0
        XPRINT LINE (50,x) - (4750,x) ' col,row
        XPRINT WIDTH 2
    NEXT x
    z = -1
    FOR y = 50 TO 4750 STEP 100  ' vertical lines
        INCR z
        IF (z MOD 5) = 0 THEN XPRINT WIDTH 8 : z = 0
        XPRINT LINE (y,50) - (y,6250) ' col,row
        XPRINT WIDTH 2
    NEXT y
    XPRINT CLOSE
END FUNCTION

Any ideas? Thanks, Mr Lynn

[Michael Mattias]

Find Usable printer area (Lee Furr)

With PB statements, I think you need to use XPRINT GET SIZE and XPRINT GET MARGIN to find the 'net' printer area available to the specific printer in use.

[Lynn Wakefield]

Thanks for the suggestions, but did not fix the problem.
I found out that if you print to the printer in wireless mode it acts up. If you print thru a usb cable to the same printer, it works just fine.

[Lynn Wakefield]

Solved!
HP says go to the printer properties, click on the Ports tab, then clear the Enable bidirectional support check box.
That fixed my problem. Thanks Michael for your help.