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

Table B-1. Actions and Warnings

Code, Message Cause What to Do

W-HT-[48] - Heater Bad Reading	Bad thermister reading detected on
	the preheat heater.

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

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 color reservoir indicated is	Refill the reservoir indicated with a
	out of ink.	full bottle of ink.
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] -	The profiler in the [color] slot is the	Replace the profiler with appropriate
Incorrect [color] Profiler	wrong color or the wrong ink type.	[color] profiler.
A-IS-38 - Profiler Setup Error	Ink profilers are installed in the	Change profilers to match ink order
	wrong docking station positions.	or insert correct profiler for ink type.
A-IS-[43 44 45 46 47] -	The profiler indicated is invalid.	Replace the profiler indicated with a
[color] Invalid Profiler		valid profiler.

A-IS-[51 52 53 54 55] -	The profiler was replaced before the
[color] Reservoir Not Emptying	ink level reached its refill point.

Do not replace the profiler until its LED turns on, which indicates that the ink level is low enough to accept a refill bottle of ink.

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 reservoir for a low ink
Out of Ink	receiving ink.	level, check attention items for a
		failed ink thermister, make sure that
		the ink filter is not full, and check the
		tubing and pump functionality.
A-IS-75 - Ink System Disabled	An error in ink system at startup was	Fix the error and restart printer.
	detected.

Diagnostics B-9