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ibnfadhel Student
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upgrade firmware

c7770b designjet 500
Microsoft Windows 7 (64-bit)

my front panel in plotter block after make upgrade because replace print head issue in 2020 what can do switch off then on

front panel block

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Associate Professor
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HP Recommended

upgrade firmware

Please provide additional information.  Are you getting a particular error, if possible please post pictures of control panel. If you have a failed print head then you will need to replace it.

Find this information helpful? Please click Kudos or tag as solution. I am not an employee of HP but a current field service tech with 20+ years real world experience troubleshooting and fixing HP Imaging hardware.
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