Buy Office Home And Business 2010 HP Network ScanJ

This section is for business purchasers. D.I.Y. individuals can naturally also put into action significantly less, precisely the same, far more, or variants. But individuals purchasing a conversion value a description of what is typically furnished. I also goal to provide exactly what the consumer needs or requirements, not a prepackaged answer,Office Professional 2007 DJ Equipment Turntables - Electronics - Guitar Wholesal, so will not be afraid to request for that which you need. Description subject to vary with out discover (usually bug fixes & enhancements etc).
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Here is a final update (I hope) regarding the malfunctioning power supply. A short recap:
My scanjet resets during scanning. After some searching I found out that the -12 v supply collapses during scanning causing a reset of the mother board via the orange power_good signal. Connecting power_good to a constant +5V signal reduced the problem to the display. My first assumption was that the capacitors involved in the -12v circuit were bad. Replacing them however did not solve the problem.
A closer look at the -12 v supply reveals that the voltage is stabilised using a KA 78R12 voltage regulator. This IC has a voltage disable pin (pin 4) which disables the output voltage. Pin4 is connected using an opto- couple to another circuit. After connecting pin 4 with a stable voltage the reset problem disappeared. Bingo! Conclusion the -12v supply was not the cause of the problem but was merely resetting as a consequence of another problem.
Following the opto coupler I found out that it was connected to pin 11 of KA3501. Pin 11 is the power good output signal of the +12 +5 v regulator.
This signal triggered the reset of both the -12 v circuit as the mainboard.
Measuring VCC at pin 7,Buy Office Home And Business 2010, I measured around 18 V. Then I saw a small trimmer (potmeter as we say in Holland) close to the KA 3501. Turning this trimmer clockwise I was able to increase the VCC to 20 V. After that the problem was over.
So my recommendation with similar powersupply issues is to measure the voltage at pin 7 of the KA 3501. If it is below 20 v. Try increasing it using the trimmer and check whether symptoms disappear.