HP Indigo WS6600 Dripping Prevention and ITM Heating Hood Service -- CA393-101 - Page 35

DC fan (catch tray fan), It references the DC fan issues., Troubleshooting

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Issue Description Calibrating the ITM suction blower flow rate. Measuring the flow rate with an anemometer, and setting the optimum rate for the dripping reduction system. 1. Verify that the ITM blower SysTab settings are configured as follows: miscEngineTopic > feedSuctionLowSpeedLevel = 580 miscEngineTopic > feedSuctionHighSpeedLevel = 730 2. In Standby mode, in the SysTab editor IO, set IO_ITM_SUCTION_SPD_CTRL = 730 (hard override). 3. Use a multimeter to measure the ITM suction blower frequency (Hz) from pin # 4 of the blower tachometer output connector. 1 5 pin Tachometer output connector of blower fan - measure at pin #4 The measured value should be in the range of 265 Hz ± 15 Hz DC fan (catch tray fan) It references the DC fan issues. Issue DC fan (cleaning station catch tray fan) Description Checking to see that the DC fan is working properly. 32 Chapter 3 Troubleshooting

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Issue
Calibrating the ITM suction blower flow rate.
Description
Measuring the flow rate with an anemometer, and setting the optimum rate
for the dripping reduction system.
1.
Verify that the ITM blower SysTab settings are configured as follows:
miscEngineTopic > feedSuctionLowSpeedLevel
=
580
miscEngineTopic > feedSuctionHighSpeedLevel
=
730
2.
In
Standby
mode, in the SysTab editor IO, set
IO_ITM_SUCTION_SPD_CTRL
=
730
(hard override).
3.
Use a multimeter to measure the ITM suction blower frequency (Hz) from pin # 4 of the blower tachometer output
connector.
1
5 pin Tachometer output connector of blower fan — measure at pin #4
The measured value should be in the range of
265 Hz
±
15 Hz
DC fan (catch tray fan)
It references the DC fan issues.
Issue
DC fan (cleaning station catch tray fan)
Description
Checking to see that the DC fan is working properly.
32
Chapter 3
Troubleshooting