HP V8.5 manual Scan width, Verticalresolution

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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.

V8.5eRev2.2.2002

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Contents V8.5 Thermal Plotter Haftungsausschluss Copyright NoticeTrademarks DisclaimerPage Iii V8.5eRev2.2.2002 Limitation of Liability Contents Operation Appendices MaintenanceV8.5eRev2.2.2002 Media Description General DescriptionAbout this Manual Operation FunctionalSpecification S Media Transport ElectricalInterface Environmental PhysicalUnpacking InstallationMounting and Positioning Media Installation Interface SetupInstalling rolled paper Back Panel Roll paper and film path Opening the plotter Lid Installing fan-fold paper Installing rolled film Spindle blocks E R a T I O N Power Supply PrecautionsControl panel Using the Control PanelControl panel button functions Rev2.2.2002 Changing function settings Control Panel Functions and SettingsDefault Settings TestplotContrast Speed Media Scaling Emulation vertical resolution MenusettingsareF2, F4, F8, tF,PFForm feed length E R a T I O N Bytes per scan Menusettingsare b1, b2, g1, g2, g3, and g4Grayscale media table number Setup headers for programming the V8.5eSA=4B E R a T I O N Byte Line feed Error MessagesFehlermeldungen Plotter Functions and Features Power suppliesIntroduction T I O N Interface timing and signals Stepper motorInterface Data Transfer Clear Minimum data rates Data ratesScan width VerticalresolutionMode signals Print modeThermal Printhead Automatic Head Temperature FeedbackMedia Sensors Film mediaMaintenance I N T E N a N C E Maintenance GuidelinesRegular Maintenance Cleaning the thermal printhead Cleaningtheplatenroller Replacing the fuse Troubleshooting Plotter does not plot ProblemsPlotwithverticalwhitestripes Plot has vertical white stripesPlot is blotchy or faded Plot contrast is weak Plothasblackverticallines SolutionPaper is wrinkling or tearing along one edge Plot is wrong lengthCan’t make changes to control panel settings Plotter has no powerPlot output speed is erratic Bloomingplot Form feed does not stop at top-of-form marks Form feed stops before desired lengthSkewedplot Plot is skewed or unreadableR R a N T Y R R a N T Y C I I T a B L E S Interface Connector PIN Assignment TableB-2. Centronicscablepinoutsstraightthrough Centronics Interface Board Centronics Interface Board Centronics Interface Board