HP Designjet 3D Service Manual page 456

8. tm = monitors temperatures
This command displays temperature information for the model Liquefier,
support liquefier, and chamber heater.
Use this command if you experience temperature problems with the head.
Check if the model and support temperature reach the set point and if the
temperature is stable once it reaches the set point temperature. Check if the
PWM value varies instead of switching on and off. If the PWM switches on
and off, then the T/C board might be the root cause. (see also 14:67 error in
the Troubleshooting Guide)
Used for troubleshooting TC errors. Enter maintenance mode with the head
at full temp and wiggle the umbilical cable to check for wire issue. Also to
check if the PWM works to system specifications (you should see a slow
change in PWM like 20 to 30 to 40 not 10 to 100).
The information is displayed on a single line in the following format:
MM/DD/YY HH:MM:SS:
m <cur>/<set>/<pwm>/<ts> s <cur>/<set>/<pwm>/<ts> c
<cur>/<set>/<on/off>
Parameter Description
<cur> Current temperature
<set> Current temperature setpoint
<pwm> Pulse Width Modulation status
<ts> Temperature setback (1 = Active, 0 = Inactive)
m Model
s Support
c Chamber
Figure 445: Monitor temperatures
Examples:
Command Description
Single print of the current temperatures
tm
One line displaying temperatures updating every second
tm 1
Turns off temperature updating every second
tm 0
Prints the temperature continually the number of times repre-
rt XXXX 1
sented by XXXX
tm
9. mz = Move Z
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