HP 72SI, 98SI manual Printer. If it will not cool, unplug

Table B-1. Actions and Warnings

Code, Message Cause What to Do

W-HT-[49 50] - Heater Bad Reading Bad thermister reading detected on the postheat #1 heater (49) or postheat #2 heater (50).

The thermister is bad, or the heater board or I/O board is malfunctioning, or there is a cable problem.

W-HT-100 - Heater Warming	The heaters are warming.	Wait for the heaters to reach their
		operational temperatures.
W-HT-101 - Heater Cooling	The heaters are cooling.	Wait for the heaters to reach their
		operational temperatures.
W-HT-[102 103] - Heaters Disabled	The printer is unable to control heater Allow heaters to cool and restart the
	temperatures.	printer. If it will not cool, unplug the
		printer. If problem persists, contact
		your Authorized Service Provider or
		Technical Services.
(IS) Ink Sensing
A-IS-[1 2 3 4] - [color] Out of Ink	The ink box indicated is out of ink.	Replace the ink box indicated.
A-IS-[25 26 27 28] -	The ink color indicated is missing its	Install the profiler indicated.
[color] Missing Ink Profiler	profiler.
A-IS-[31 32 33 34] - Incorrect [color]	The profiler in the indicated slot is	Replace the profiler with the correct
Profiler	the wrong color or ink type.	profiler.
A-IS-38 - Profiler Setup Error	Ink profilers are installed in the	Install the profilers into the correct
	wrong docking station positions.	positions in the docking station.
A-IS-[43 44 45 46 47] -	The profiler indicated is invalid.	Replace the profiler indicated with a
Invalid [color] Profiler		valid profiler.
A-IS-[61 62 63 64] -	The air sensor on the printhead indi-	Call your service provider to reposi-
[color] Air Sensor Failed	cated may be not functioning.	tion or replace the air sensor.
A-IS-[65 66 67 68] -	The ink sensor on the printhead indi-	Call your service provider to reposi-
[color] Ink Sensor Failed	cated may be not functioning.	tion or replace the ink sensor.
A-IS-[71 72 73 74] - [color] Printheads	The printhead indicated is not	Check the ink level in the correspond-
Out of Ink	receiving ink.	ing reservoir. If its LED is illuminated,
		replace the ink box.
		Check the ink tubing for leaks or
		blockage.
		Check Attention messages for a failed
		ink thermister.
		Check whether the ink filter is full.
		Call your service provider to check
		the corresponding ink pump.
A-IS-75 - Ink System Disabled	An error in ink system at startup was	Fix the error and restart printer.
	detected.

A-IS-[76 77 78 79] - Ink System	Ambient (room) temp is out of range
Disabled	for operation for K (76), C (77), M
	(78), or Y (79)

Raise or lower the ambient tempera- ture until it is within operating range (see “Specifications” on page A-2).

Diagnostics B-9