HP 250C - Manual (Page 117)

230
250C
SHIFT
Accuracy
Calib. Print
7Ć9 Calibrations and Adjustments C4699Ć90000
Before Performing the Accuracy Calibration
1 Under normal environmental conditions and on HP inkjet polyester D/A1Ćsize media, plot
a drawing that contains two X" marks nominally positioned 500 mm (19.69 in.) apart.
2 Measure the distance between the centers of the X" marks on the plot.
Accuracy calibration is needed if this distance is not 500 mm (19.69 in) 1 mm (0.04 in).
If the measured accuracy, media thickness, or environmental conditions vary greatly from
the factory standards, recalibrate the plotter by continuing with the following procedure.
Performing the Accuracy Calibration on the DesignJet 230 and 250C
1 Read w Before Performing the Accuracy Calibration above.
2 Place a sheet of HP inkjet polyester film over the top of the plotter for 10 minutes to let
the sheet stabilize to the environmental conditions.
Use a sheetof approximate size A1 or D.
You must use polyester film. Otherwise the optical sensor on the carriage will be
calibrated incorrectly, and the plotter will have problems loading some types of media.
3 In service mode 2 , set the
Media Type
on the front panel
to
Film
.
4 Load the film, with the matte (dull) side down, in portrait
orientation into the plotter.
5 When the
Ready
LED lights up, holddown the
SHIFT
key andpress
Accuracy Calib. Print.
The
Ready
LED begins to flash and the plotter plots a
calibration plot. The plotter ejects the sheet, and the
Load Media
LED lights up.
6 Unloadthe sheet.
7 Cut the blank endoff the film by cutting along the long dashedline on the plot; the cut
must be very straight.
Cut along this line
Film
Media Type