Figure 2-4. Top of Form and Vertical Tabs

TM 11-7025-210-10

The VFU tape (fig. 2-3) is standard one-inch wide opaque paper or mylar tape. if comes with prepunched sprocket holes

that correspond to the lines on a form. Additional holes, known as channel code holes, may be punched in the tape by the

punch and splicer device. Although eight channel code holes may be punched, only two are recognized by the line printer.

They are channel one code hole for Form Feed (FF) and channel six code hole for Vertical Tab (VT).

Figure 2-3. VFU Punched Tape

FF code holes in the tape are used to define top of form (fig. 2-4) and to ensure hat printout always begins in the right

place on the form. VT code holes in the ape are used to skip lines on the form and, like a typewriter, stop the paper at a

tab which, in this case, is a vertical tab (figure 2-4).

Figure 2-4. Top of Form and Vertical Tabs

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