HP V8.5 manual Scan width, Verticalresolution

T H E O R Y O F O P E R A T I O N

Scan width

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Scan width settings sent from host software can specify the number of bytes of data that will be plotted on a line. The maximum setting that data can be rastered to is 264 bytes per scan.

NOTE: The thermal head holds a maximum of 216 bytes of data. When theplotterissetto264bytesperscan,thefirst216bytesofdatafrom thehostareloadedintothethermalheadtobeplottedandthelast48 arediscarded.

For rastered data less than the current byte count setting on the plotter, the scan may be terminated at any byte count by a RLTER command. If a RLTER command is asserted, the scan is terminated and the plot continues on the next line.

Verticalresolution

The vertical resolution of the plot can be changed from the default value of 203 dpi (n3or P3) to 200 dpi (n0 or P0, also known as Imperial unit setting). See “Emulation”, in Chapter 4, Operation, for information on control panel settings.

The plotter emulates the 200 dpi resolution by stretching the plot length. This is accomplished by inserting micro-steps at regular intervals, so that 200 scans cover one inch of plot.

Scaling

The scaling function either stretches or shrinks the plot by removing or adding a micro-step at a set interval. Adjustments can be made to the scaling in increments of +/- 1/16” over 36” of plot length. The interval is determined by the scaling setting on the control panel. See “Scaling” in Operation, Chapter 4, Page 4-9, for information on control panel settings.

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