20 Most Recent HP LaserJet 5si Printer - Page 7 Questions & Answers

I would turn off the print and then turn on. This could be a main board issue.

HP LaserJet... | Answered on May 09, 2017


From the HP support webpage -


A printer command error has occurred.


1.Turn the printer off and then on.

2.If the message persists, contact HP support.

Start there, then call for support tech on their contact phone number 1-844-814-1800 - apparently you need to pay HP to support their products over the phone.

HP LaserJet... | Answered on Apr 06, 2017

Turn power off - wait- turn power back on

HP LaserJet... | Answered on Feb 28, 2017

More details, what kind of document are you printing, what format, what driver, what software are you printing from. If you are printing full page color photographs those can take a long time to print. Make sure all updates for software and firmware of printer is up to date as well.

HP LaserJet... | Answered on Dec 17, 2016

you need to go where it says Service then input that code and scroll to reset the belt. ( this only needs to be reset in Service mode when changing before the counter says to.)

HP LaserJet... | Answered on Dec 09, 2016

you are using a generic toner -- the chip on the toner is causing the memory error. you should still be able to print. hit the ok button to bypass

HP LaserJet... | Answered on Dec 09, 2016

There is a utility and special firmware used to fix this problem. You will need to contact HP Tech Support as the 300 series is not listed in the downloads I have access to.

HP LaserJet... | Answered on Dec 03, 2016

The service manual shows no way to print test page without a computer attached.

HP LaserJet... | Answered on Nov 28, 2016

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