HP 72SR manual Print Jet-Out Lines, Pressure is applied to each printhead, but a possible

To purge-n-wipe a color (four printheads):

1.From the control panel Front Page screen, press the  (Menu) key.

2.Press the ) key to highlight Maintenance.

3. Press the  (Menu In) key.

4. Press )to highlight Purge a Color.

5.Press the  (Menu In) key.

6.Press the ! (Proceed) key to continue.

The control panel displays a list of ink colors.

7.Press )repeatedly to select an ink color to purge.

8.Press ! (Proceed) to continue.

The printer purges the printheads with air pressure, then wipes them with the service station wipers. Approximately 1.7 milliliters of ink per color are expelled by this purge (and the purges triggered by AutoTune and AutoRecover).

Note	Purging a single color is more effective because more
	pressure is applied to each printhead, but a possible
	side effect of repeated single-color purges is clogged
	jets in other colors. Repeated single-color purges
	should be followed by a purge of all printheads.

Print Jet-Out Lines

1.From the control panel Front Page screen, press the  (Menu) key.

2.Press the ) key to highlight Maintenance.

3. Press the  (Menu In) key.

4. Press )to highlight Print Jet-Out Lines.

5.Press the  (Menu In) key.

The Jet-Out Lines pattern prints. Substituted jets are marked with a black square.

Map Out Missing Jets If the Jet-Out Lines (above) reveal an blank or wavy lines, the corresponding jets should be mapped out. For instructions, see “AutoJet” on page 4-3 or “Manual Jet Mapping” on page 4-15. When all missing jets have been substituted, printed output will appear as if all jets are working.

3-8 Checking Jet Health