Question about HP LaserJet 9500n Printer

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Error code 57.70 on HP 9500 color printer

This is a duplexer fan error code but our machine does not have a duplexer fan installed. What could cause this problem with no duplexer fan? The machine worked fine until this code now it just says to cycle power and you get the same code.

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What is the code? This unit does not have a fan in the duplexer nor for the duplexer. The 9500 has a fan housing but there was never a fan put in by the design team. Give the code and I look it up to see the problem.

Posted on Apr 30, 2010

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1 Answer

My printer hp color laserjet displays a printer error 57.07 i need to a process to clear the code

Try looking up that specific error code and it should tell you what you need to do.

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E & F are just prior to the paper going into the duplexer. G is a sensor in the duplexer assembly. If the sensors check out ok in diagnostics, then I would suspect worn feed rollers causing a paper late condition.

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That error code indicates a failed fuser fan. You will need to get it replaced. PN: RH7-1522-000CN

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Fuser fan is shot. Has to be replaced.
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It says 57.7 printer error and cycle power to continue

By any chance do you have a duplexer on this printer? The error code says that the duplexer has a bad fan. Power down the printer and remove the duplexer. Power up the printer and see if the error code is gone. Replace the fan.

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57.70 error for hp colorlaserjet 9500n

1. The cooling fan in the optional duplexer is bad. 
1. Replace the duplexer fan.

from hp repair manual

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In Vista the default s the duplexer is "not installed". Go to Start, Settings, Control Panel, Printers, double-click on the Deskjet, Printers, Properties, Device Settings and set the duplexer to "Installed".

If the duplexer prints the back side upside down in Vista once it is enabled you can get a patch as described here.

Bob Headrick, Microsoft MVP Printing/Imaging

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