Clean the Rail and Bearings

Bearings (back of carriage)

Pinch rollers

Rail

Fig. 5-1. Location of rollers, bearings, and rail

The carriage rail carries the printhead carriage across the width of the platen. As dust and ink accumulates on the rail, the mate- rial could accumulate on the carriage bearings (wheels) and cause banding in printed output or noisy (“click-click-click”) carriage motion.

Pinch Rollers 1. Wipe the pinch rollers with a lint-free cloth or wipe moist- ened with isopropyl alcohol.

Caution DO NOT ALLOW ISOPROPYL ALCOHOL TO TOUCH THE PRINTHEADS, especially the inkjet orifice plates. Contact with the ink could cause the ink to coagu- late, rendering the printhead unusable and requiring it to be replaced. Be sure that cleaned surfaces have dried before printing.

Clean the Rail and Bearings

5-3

Page 133
Image 133
HP 72SR manual Clean the Rail and Bearings