HP V8.5 manual Centronics Interface Board

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A P P E N D I X

CENTRONICS INTERFACE BOARD

The new Centronics adapter (rev1-2) implements some improve- ments over the previous (rev1-1) adapter card. These include:

a)Rev 1-2 cards will accept either of the two data transfer methods described below automatically; no switches or jumpers required.

b)Reliable data transfers using up to 40 ft length of shielded cable.

c)Rev 1-1 adapter cards exhibit inconsistent data transfer with newer generation PC.’s equipped with high speed integrated Centronics parallel ports.

The following are two transfer formats that can be used with the optional V8.5E Centronics parallel adapter:

C

1.) Standard transfer format

To place the V8.5E Centronics adapter in raster mode, the following 3 bytes (hex) must be sent to the Centronics adapter card:

1B, 2A, 00

Once these 3 bytes are sent, rastered plot data can be sent to the plotter as follows:

V8.5E bytes/scan menu setting	bytes/scan raster data
b1	216
b2	264
g1-g4	1728

V8.5eRev2.2.2002	C-1

Image 78

Contents V8.5 Thermal Plotter Disclaimer Copyright NoticeTrademarks HaftungsausschlussPage Iii V8.5eRev2.2.2002 Limitation of Liability Contents Operation Maintenance AppendicesV8.5eRev2.2.2002 General Description Media DescriptionAbout this Manual Functional OperationSpecification S Media Transport ElectricalInterface Physical EnvironmentalInstallation UnpackingMounting and Positioning Interface Setup Media InstallationInstalling rolled paper Back Panel Roll paper and film path Opening the plotter Lid Installing fan-fold paper Installing rolled film Spindle blocks Power Supply Precautions E R a T I O NUsing the Control Panel Control panelControl panel button functions Rev2.2.2002 Control Panel Functions and Settings Changing function settingsDefault Settings TestplotContrast Speed Media Scaling Emulation vertical resolution MenusettingsareF2, F4, F8, tF,PFForm feed length E R a T I O N Menusettingsare b1, b2, g1, g2, g3, and g4 Bytes per scanSetup headers for programming the V8.5e Grayscale media table numberSA=4B E R a T I O N Error Messages Byte Line feedFehlermeldungen Plotter Functions and Features Power suppliesIntroduction T I O N Interface timing and signals Stepper motorInterface Data Transfer Clear Data rates Minimum data ratesVerticalresolution Scan widthPrint mode Mode signalsAutomatic Head Temperature Feedback Thermal PrintheadFilm media Media SensorsMaintenance Maintenance Guidelines I N T E N a N C ERegular Maintenance Cleaning the thermal printhead Cleaningtheplatenroller Replacing the fuse Troubleshooting Problems Plotter does not plotPlot has vertical white stripes PlotwithverticalwhitestripesPlot is blotchy or faded Plot contrast is weak Solution PlothasblackverticallinesPlot is wrong length Paper is wrinkling or tearing along one edgePlotter has no power Can’t make changes to control panel settingsPlot output speed is erratic Bloomingplot Form feed stops before desired length Form feed does not stop at top-of-form marksPlot is skewed or unreadable SkewedplotR 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