Question about Lexmark Optra S 1250 Laser Printer

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Should she leave the power on all the time?

My roommate said that a teck told her it was best to leave the printer (Lexmark Optra S 1250) on all the time. Yes or No?

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No, shut it down. The enemy of electronic components is heat. Besides, it wastes energy. If everyone in America who left their computers on overnight would shut them off we could have one less nuclear power plant in the US.

Posted on Feb 04, 2009

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As a general rule, you need to look at two things to answer this question: 1.) Do you have a good, clean, generally uninterrupted supply of electricity? If so, then it won't HURT to leave it turned on all the time; but if not, you'd be best to turn it off, and even unplug it during storms and other times of like power outages. Power spikes and surges can totally ruin any electronic equipment, and printers are no exception. 2.) Does the equipment manufacturer recommend that you leave it on all the time? If so, by all means, do so. If not, it's a judgement call. Two factors that influence that decision:

  • Some printers take an inordinate amount of time to warm up and cycle to ready—if yours does, you may want to leave it on. 
  • Some printers also use a whole lot of ink when they first cycle to ready, so if yours does this, it will be more economical to pay for the electricity than to pay for the ink. 
I hope this is helpful!

Posted on Feb 04, 2009


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A 921error indicates that the fuser unit failed to reach the standby temperature.

  • If this is the first time you have seen the error, turn the printer off and on. Leave the printer off for at. least 10 seconds before turning it back on. This gives the printer's engine board a chance to reset.
  • If this is an intermittent error, you may want to check how the printer is plugged in, even if it has worked on this surge device for months. Make sure the printer is plugged straight to the wall and not through a surge device or power strip. Power strips and uninterrupted power supplies can cause a low amperage problem in your printer which can trigger a false fuser error.
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