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- what is the button battery for

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06-01-2020 11:36 PM
what is the button battery on the main electronic control board inside the hp photosmart 7520 All-In-One printer for
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Accepted Solutions
06-02-2020 12:37 AM
Hello,
Button battery is basically gives a power backup to the printer. There are components in the printer like RTC ( Real time Clock ) that need to hold the values. When printer is powered off the button battery gives the power supply to these components. Even the Printer settings done customer are saved ( unless the printer is Reset ).
Jabzi
Give Kudos to say "thanks" by clicking on the "thumps Up icon" .
Click "Accept as Solution" if it solved your problem, so others can find it.
Although I am an HP employee, I am speaking for myself and not for HP.
06-02-2020 12:37 AM
Hello,
Button battery is basically gives a power backup to the printer. There are components in the printer like RTC ( Real time Clock ) that need to hold the values. When printer is powered off the button battery gives the power supply to these components. Even the Printer settings done customer are saved ( unless the printer is Reset ).
Jabzi
Give Kudos to say "thanks" by clicking on the "thumps Up icon" .
Click "Accept as Solution" if it solved your problem, so others can find it.
Although I am an HP employee, I am speaking for myself and not for HP.