HP 72SR manual Ink System Overview, Condition Meaning

Ink System Overview

The printer’s ink system consists of the following components:

◆OffHead System (OHS) reservoirs — four solvent-based ink reservoirs (CMYK) and one cleaning solvent reservoir.

◆Ink tubes — carry ink and cleaning solvent to the print- heads, and cleaning solvent to the service station.

◆Printheads — permanent piezo-based printheads.

◆Vacuum/Pressure (VP) System — provides vacuum to main- tain negative pressure at the printheads, and pressure to purge the ink tubes and printheads.

◆Profilers — provided with each bottle of ink and cleaning solvent, they contain information about the ink and must be installed together with their corresponding bottle of ink or cleaning solvent. Profiler data are used to track ink and cleaning solvent levels, and to help ensure optimal output quality and compatibility with printer components.

◆LEDs — LEDs over each reservoir illuminate to indicate the status of the OHS:

Condition	Meaning
Off	Less than 2 liters of ink have been used since
	the reservoir was refilled.
On	Over 2 liters of ink have been used since the
	reservoir was filled. Refill the ink (see
	“Checking Jet Health” on page 3-6).
Blinking (fast)	Ink has been refilled, but the new profiler
	has not yet been installed, or a new profiler
	has been installed, but the ink has not yet
	been refilled.
Blinking (slow)	Ink refilled and profiler installed, printer is
	reading the profiler.

◆Refill bottles — refill bottles of ColorSpan SolaChrome-HR ink and cleaning solvent are designed to be emptied into the reservoir an entire bottle at a time. This helps reduce the effects of pigment settling in the bottle, and keeps the ink level calculations accurate.

Caution Use only genuine ColorSpan inks and cleaning sol- vent in the printer. Use of any other inks or cleaning fluids COULD DAMAGE THE PRINTER AND WILL VOID THE WARRANTY.

3-2 Ink System Overview