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HP officejet G85

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HP officejet G85 by DENNIS312 (3/28/08 5:15 PM) reply + / -
Having a printing problem I shutoff my PC and Printer. I unpluged the G85 and inadvertly plugging it back in to a 6 plug electical adapter I shorted out the plug. Only thing on plug that failed was HP G85. No Lights or power. Took Identical power cord from an Identical machine still won"t power up. Might there be a internal fuse?


Re: HP officejet G85 by DENNIS312 (3/28/08 5:26 PM) reply + / -
Having a printing problem I shutoff my PC and Printer. I unpluged the G85 and indadvetly plugging it back into a 6 plug electical adapter I shorted out the plug. Only thing on plug that failed was HP G85. No Lights or power. Took identical power cord from an Identical machine, still won't power up. Might there be an internal fuse?


Re: HP officejet G85 by Bert (3/28/08 6:18 PM) reply + / -
If the green light on the power connector that plugs into the printer is not on the power module is defective. It will have to be replaced, HP P/N 0950-3807. If the light is on the main electronics board has a problem. You will have to remove the case to check it. If there is a fuse it will be a surface mount style and have an F prefix.

Officejet G85, Removing the Case

Removing the rear cover
Looking from the rear, remove the T20 Torx screw on the left. This will allow you to remove the LIU (Line Interface Unit) cover and unplug the LIU. There are two push latches underneath that release the rear cover. It will hinge upward.

Cables
Removing the rear panel will reveal some cables connected to the scanner. Disconnect them.

Removing the Scanner
Tilt the scanner upward as if you are going to access the cartridges. You will see two large springs. Remove them. The front of the scanner pivots on two large hinges. Pry them apart with a slot style screwdriver. They will resist but will release and allow the scanner to rotate upwards. Rotate the scanner approximately 90 degrees and it will lift off of it's rear hinges. Use caution as you remove it in case you do not have all of the cables previously mentioned disconnected.

Removing the rest of the case
There is a flat piece held on by four T10 Torx screws and two side covers that will hinge outward when two T20 Torx screws on each one are removed. When the side covers hinge outward they can be removed.



Re: HP officejet G85 by Anonymous (11/3/09 4:11 PM) reply + / -
The green button on the power cord is blinking and the power won't come on. I am assuming a bad power module.?


Re: HP officejet G85 by Bert (11/3/09 6:33 PM) reply + / -
If the green light blinks with the cord unplugged from the printer the power module is defective for certain.


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