note:Specification for plot length accuracy is +/2% of line vector length at 23 degrees C, 50-60% relative humidity using HP Polyester matte film. Accuracy not assured if other media used or if printer is operating out of environmental specifications.
The HP Designjet 650c Model B - Calibrating Plot Length Accuracy
Calibrating the printer on the HP Designjet 650c printer model B using Full Menu Mode.
Full Menu Mode
note:If loading a D/A1-size sheet on an E-size printer model, hold the film by the short edges and load the long edge into the printer.
If, after calibrating the printer, you want to restore the factory calibration settings, begin with step three.
Load a sheet or roll of polyester film for greatest accuracy. The physical size of the media must be D/A1 or E/A0.
From the Status screen, press ENTER. Press the DOWN ARROW two times to scroll to Utilities, then press ENTER.
Press the DOWN ARROW to scroll to Accuracy and press ENTER.
If recalibrating the printer, scroll to Recalibrate and press ENTER (continue with the next step). If restoring the factory calibration settings, scroll to Restore factory and press ENTER (this completes the Restore factory procedure).
Press the UP ARROW to create a calibration plot.
Once the plot is finished, remove it (press FORM FEED/CUT if using roll media) and rotate the plot 90° counterclockwise and reload it with the printed side down.
Return to this menu and select Measure plot.
If the measured accuracy, media thickness, or environmental conditions vary greatly from the factory standards, you may want to recalibrate the printer using this procedure. (Refer to "References" in the manual Setting Up for Plotting.
Once created, you can reuse the calibration plot to recalibrate the printer's accuracy later. Store the plot flat or rolled with the print side out. If the film takes a curl in the wrong direction it can become impossible to load into the printer.
Another, less accurate way to check the printer's accuracy is to print the Configuration Plot (refer to "To plot configuration information" later in this chapter) and measure the distance between the cross marks. The measured value should be 500 mm.
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