[Electrical] hp 2420 laserjet - no power

[copiertech]

Hi,

We are gewtting the following problem with HP 2420 laserjet, the machine was working fine and giving error door open and than the guys haveopen th whole machine to check the connections, after that the machine will not boot?? Any idea.

Waleed

[JustManuals]

Re: hp 2420 laserjet - no power

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[fbkhan3]

Re: hp 2420 laserjet - no power

Ask them to re-check for bent pin's,pinched wires or loose connections!

[Wild Bill]

Re: hp 2420 laserjet - no power

Is the machine dead or is is stuck booting. If no power is there a fan turning?

[blackcat4866]

Re: hp 2420 laserjet - no power

Not knowing what your answers are to the previous questions, I can offer this. It's a common sequence to lose a single voltage from the power supply, typically 24vdc used for the doorswitch circuit. Then later losing another voltage , i.e. the 5vdc logic level voltage, preventing the machine from booting up. Based on a very small amount of information I'd be led to the power supply PWB. =^..^=