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7-2 Adjustments/Calibrations
ADJUSTMENTS
There are no electrical or mechanical adjustments required on the HP C2858A and C2859A
DesignJet 650C plotters.
CALIBRATIONS
DesignJet 650C plotters have several calibration procedures that must be performed under
certain conditions. Refer to Table 7-1 to determine when calibrations are required.
Table 7-1. Calibration Requirements
Indications or Repairs Performed
Calibration Required
Hardclip limits not within specification Sheet Length Calib
Platen (drive) roller is replaced Accuracy Calib
X-axis motor/encoder is replaced Accuracy Calib
Config Plot X-mark distance is not
500mm ( 1mm.); mono on inkjet film
Accuracy Calib
Media sensor is replaced Media Sensor Calib
Plotter does not detect media presence Media Sensor Calib
Plotter tries to load media, none present Media Sensor Calib
Drop Sensor is removed or replaced Drop Detect Calib
Pen checking constantly rejects pens Drop Detect Calib
Pen service station is removed or replaced Drop Detect Calib
Carriage or Carriage LED is replaced Edge Sensor Calib
Edge detect failures occur Edge Sensor Calib
Bail failures occur during media loading Bail Calib
EEROM is cleared or replaced All in the following order:
1. Media Sensor Calib
2. Bail Calib
3. Drop Detect Calib
4. Edge Sensor Calib
5. Accuracy Calib