Paper Motion Commands129Home And CursorThe Home position and cursor pointers in this manual are similar in function tothe Home and cursor pointers in a CRT terminal:• Upon entering the Barcode/Block Character Mode, the Home position isset to the extreme top-left dot in the current print line. This is consideredthe starting point for horizontal and vertical positioning.• The cursor position is defined as the current print location.Paper Motion CommandsThe printer will lose track of the Top-of-Form position and will start printing inrandom locations if paper movement exceeds approximately 8 feet during aprint job without finding one of the following Paper Motion commands:Form Feed Next TOFReverse Form Feed Current TOFVertical Tab Next VFU Channel 2VFU Command Next or Previous indicated VFU ChannelThese 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 theHome position. A Carriage Return places the cursor at the left margin; a LineFeed places the cursor at the left margin and also moves it down by one linefeed distance. Cursor position is not affected when the Carriage Return and/or Line Feed are used as control sequence terminators. However, the controlsequence may affect Cursor position. Use of the Line Feed switch on theprinter’s control panel will move the cursor forward 1/6 inch steps (in 6 LPI) orin 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, thedistance moved being dependent upon the block character cell width. Thecursor does not move when printing barcodes since the length of the Barcodesymbol depends upon details of the Barcode type selected. Therefore, whenprinting barcodes it is necessary to use the Cursor Control Sequences toproperly position the cursor.Upon exiting from the Barcode/Block Character Mode, the cursor will remainpointing to its current vertical position.
