iSys V12 Thermal Printer - Manual (Page 22)

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Form feed length
The FFLENGTH function adjusts the distance that the media is advanced upon pressing the
FORM FEED button in OFFLINE mode. The default setting is 2 inches. The length can be
adjusted for trailer length (the length of media advance after the plot has finished), or for various
fan-fold paper lengths.
The plotter senses fan-fold top-of-form marks. These marks signal the plotter to stop the form
feed at a consistent distance from the perforated edge of the paper. The top-of-form sensor is
located in the paper loading area, which is to the rear of the platen roller and on the right side of
the plotter- see Figure 7-17. Plotting begins immediately after the perforation, unless margins
are defined in the host software.
If you are using paper with Top of Form (TOF) marks, ensure that the form feed length is set to
“TOF sens” or a distance equal to, or greater than the distance between these marks. The form
feed will stop when it reaches the FORMFEED setting value, or when it senses a top-of-form
mark, whichever comes first.
Change the form feed length settings by pressing the up or down buttons in the FFLENGTH
sub-menu. Settings are 1.0, 2.0, 3.0, 4.0, 6.0, 8.0, 10.0, 12.0, 14.0 and 16.0 inches, TOF sens,
PTOF ena- see page 4-9 for TOF display descriptions.
Scan width
The SCANWDTH function adjusts the scan width of the plot, defined in bytes per line. The
default scan width is 216 (right justified) bytes per line.
Unless you are using RLTER (remote line terminate) commands, the plotter scan width must be
set to the same byte count as the rastered data from the host. Setting the scan width higher
than the byte count of the raster data does not create a wider plot. Setting the scan width
incorrectly results in skewed output as the data “wraps” and finishes the scan on the next line.
This condition is identifiable on the plot in Figure 8-8.
Change the scan width settings by pressing the up or down arrows in the SCANWDTH sub-
menu. The small arrow in the display, to the right of the numerals, indicates no margin. If the
arrow is not present, the plotter inserts a left margin of 16 bytes (5/8-inch).
SCANWDTH settings can be 216 bytes, 216 bytes no margin, 264 bytes, 264 bytes no margin,
or 296 bytes. Since 296 bytes is the maximum width of the plot media, no margin is placed.
For more details on SCANWDTH and using remote line terminate (RLTER) commands, see
“Interface timing and signals” in Chapter 5, Theory of Operation.