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Paper Motion Commands
129
Home And Cursor
The Home position and cursor pointers in this manual are similar in function to
the Home and cursor pointers in a CRT terminal:
• Upon entering the Barcode/Block Character Mode, the Home position is
set to the extreme top-left dot in the current print line. This is considered
the starting point for horizontal and vertical positioning.
• The cursor position is defined as the current print location.
Paper Motion Commands
The printer will lose track of the Top-of-Form position and will start printing in
random locations if paper movement exceeds approximately 8 feet during a
print job without finding one of the following Paper Motion commands:
Form Feed Next TOF
Reverse Form Feed Current TOF
Vertical Tab Next VFU Channel 2
VFU Command Next or Previous indicated VFU Channel
These Paper Motion commands perform three functions:
1. The Home is moved to a defined, absolute position.
2. The Cursor position is aligned to the Home.
3. Any printable data being held in the buffer is printed.
Upon entering the Barcode/Block Character Mode, the cursor is aligned to the
Home position. A Carriage Return places the cursor at the left margin; a Line
Feed places the cursor at the left margin and also moves it down by one line
feed distance. Cursor position is not affected when the Carriage Return and/
or Line Feed are used as control sequence terminators. However, the control
sequence may affect Cursor position. Use of the Line Feed switch on the
printer’s control panel will move the cursor forward 1/6 inch steps (in 6 LPI) or
in 1/8 inch steps (in 8 LPI) and will align the Home position to the Cursor.
The Cursor also moves horizontally for each block character printed, the
distance moved being dependent upon the block character cell width. The
cursor does not move when printing barcodes since the length of the Barcode
symbol depends upon details of the Barcode type selected. Therefore, when
printing barcodes it is necessary to use the Cursor Control Sequences to
properly position the cursor.
Upon exiting from the Barcode/Block Character Mode, the cursor will remain
pointing to its current vertical position.