HP 750 - Manual (Page 87)

12 Separate the rear bushing and spring from the carriage assembly and carefully remove the
carriage assembly and main drive belt from the plotter.
13 Remove the drive belt from the carriage assembly.
Calibration: After reassembling the plotter, perform:
D
Pen alignment test ' page 8Ć40.
D LineĆsensor calibration ' page 7Ć5.
D Accuracy calibration ' page 7Ć6.
D DropĆdetect calibration ' page 7Ć4.
6-35 Removal and Replacement C4705-90000