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General Troubleshooting
4-51
Purge Pump
This test determines if the purge pump system (pump/hose/purge valve/printhead) is operating
normally.
R#
Definition
Typical
Value
Actions
0
Jetstack
Temperature (deg)
MFG
Only
Reports current jetstack temperature. If the
temperature is above current threshold (120
deg), the test will abort and following results
will report as 0. This avoids having ink extrude
out of the faceplate and onto the drum,
requiring both a wipe and a chase to clean up.
1
Start Power (watts)
MFG
Only
Reports initial peak pumping power after pump
power on. This reflects the in rush current to
the pump motor. An unusual value could
indicate a defective motor (windings/brushes/
etc.).
2
Initial Pumping
Power (watts)
MFG
Only
Reports minimum pumping power after start up
peak (R1). This is the first value to reflect the
system pressure. If the volume is normal
(hose/printhead), then the drop is large and the
pressure rises slowly. If the volume is small
(hose pinched plugged near the pump), then
the drop is minimal and the pressure rises
quickly.
3
Max Pressure
Pumping Power
MFG
Only
Reports average pumping power just before
maximum pressure is reached. May indicate
the efficiency of the pump, leaks, and/or the
setting of the pressure relief valve.
4
Pumping Time To
Max (sec)
MFG
Only
Reports the time from pump on until the
pressure relief valve opens. May indicate the
conditions discussed in R3, as well as the
system volume.
5
No Pressure
Pumping Power
(watts)
MFG
Only
Reports the average pumping power after the
pressure has fully decayed. May indicate pump
motor condition/efficiency.
6
Pressure Decay
Time (sec)
MFG
Only
Reports the time between purge valve opening
and the point when the pumping power
(relative to the current pressure), fades back
into the ripple of the no pressure pumping
power (see the R5 discussion above). This
time could indicate the operation of the purge
valve and the condition of the bleed orifice
(plugged, etc.).
Содержание WorkCentre C2424/DX
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