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Hp designjet t770 how to fix error 21.1:03 - HP DESIGNJET T770 Printer

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SOURCE: HP designjet 1050 C plotter system error 04c3000 25c0000

when installing a network card i am getting this error cod 04c00 00002a0a

Posted on Sep 10, 2008

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SOURCE: hp plotter designjet 1055 CM plus plotter produces system error

one of the printheads is bad.....check the error code again,because 060308 does not exist in hp designjet 1055cm plotter.

Posted on Aug 01, 2009

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SOURCE: HP Designjet 800 with a 'system error 81:01'

i have hp dnj Plotter 500 Printer Is Redy But Self Test & Computer Print Than Error 81:01 Papar Jam

Posted on Dec 05, 2009

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SOURCE: HP 800 designjet plotter Error Message 21:10

need to replace service unit

Posted on Mar 22, 2010

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SOURCE: HP Designjet T770 HDD error

Did it ever work?

You are using the Post Script drivers, right?
Power down the printer from the back. Disconnect the power cord. Plug it back in and power it up.
Check the graphic language setting of the printer(look at the User Guide)
Resend the file.
Upgrade the firmware to the latest version (

Posted on Feb 10, 2011

Testimonial: "thanks, We actually had someone from another governmnet department that uses the exact same printer. and once we connected he gave the exact advice. "

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1 Answer


This is problem with the starwheel assembly, make sure that there is no paper stuck under it and restricting movement. The starwheel is the metal bar and little spiky metal wheels that guide the paper.

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Here is a service manual that might help you.

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Taking machine apart

i have 45.1:3 for t770

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Hp designjet 800 error 2:10

System Error: 02:10
Is a carriage failure.
Get someone to look at it, possible carriage assembly replacement

Oct 27, 2011 | HP DESIGNJET T770 Printer

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How to find star wheel motor in hp designjet T770 hdd printer

Are you tech guy?..If not don't try to open it..its is not so easy..Remove left coverRemove main PCARemove Spit onThere you can see the star wheel unit..

Sep 14, 2011 | HP DESIGNJET T770 Printer

1 Answer

I'm getting 47:01 error on a DesignJet T770, read something about cleaning a star wheel...What is it and where is it located?

It doesn't need cleaning, it needs to be replaced. It's located on the right side of the printer behind the ride side cover. If you haven't been trained you arn't going to replace the motor. After it gets replaced the printer has to be re-calibrated. If it is still under warranty, use it. Otherwise, get a designjet tech to work on it.

Aug 24, 2011 | HP DESIGNJET T770 Printer

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Designjet T 770 error 47:01

It's a "star wheel motor" error.
Try unplugging power cord from wall.
Plug it back in and power on.
If error persists, a technician is going to have to troubleshoot the printer.

Jul 15, 2011 | HP DESIGNJET T770 Printer

1 Answer

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error 59.2:00 for t770

Aug 16, 2010 | HP DESIGNJET T770 Printer

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