Display panel 7520

Our display panel on our wonderful 7520 is out!!!
I can still print from my computer and scan put the display is totally black.
No storms, power surges or anything...any tips or helpful hints?
Black display screen Gil
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Hi @Gilpurchases,
Welcome to the HP Forums!
I noticed that you are getting a black display screen with your HP Photosmart 7520. I am sorry to hear this, but happy to help!
Please try a hard reset, by going to this post, How to perform a Hard Reset, by @Rich1. It is very important to make sure that the printer's power cable is plugged directly into the wall outlet and not a surge protector. Issues when Connected to an Uninterruptible Power Supply/Power Strip/Surge Protector. This applies to Inkjet printers as well.
I would also go through this guide, The HP Printer Won't Turn On or Respond When the Power Button is Pressed.
The last step would be to try and plug in a USB printer cable from the printer to the computer, and do a firmware update. If one is available for your Operating System. What version of Mac OS X are you using? If you do not know the Operating System you are using, please visit this website. Whatsmyos.
Hope this helps, and hope to hear from you soon!
RnRMusicMan
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" to say “Thanks” for helping!

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Message was edited by: KRitchie

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Kelvin
Message was edited by: KRitchie

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View Solution.

eBay:
auction
Youtube
I did not watch the video but it cannot hurt for you to do so. If you need more help post back. I actually think it is easier to replace just the panel as opposed to the entire assembly, but that is me.

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hi i have a stiuation where i what to display panel header based on radio button selection for example if the value of radio is DSO it must dispaly all under <af:panelHeader,am in jdeveloper 11.1.1.6.0
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<af:selectOneRadio value="#{bindings.Paymenttype.inputValue}"
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                              inlineStyle="width:556px; border-color:Blue; border-style:ridge;">Edited by: adf009 on 2013/02/21 2:44 PM
Edited by: adf009 on 2013/02/21 2:48 PM
Edited by: adf009 on 2013/02/21 2:56 PM

i have try that but it does not display panel header based on radio selection
<af:selectOneRadio value="#{bindings.Paymenttype.inputValue}"
                                   label="#{bindings.Paymenttype.label}"
                                   shortDesc="#{bindings.Paymenttype.hints.tooltip}"
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                                label="#{bindings.Accounthldr.hints.label}"
                                required="#{bindings.Accounthldr.hints.mandatory}"
                                columns="20"
                                maximumLength="#{bindings.Accounthldr.hints.precision}"
                                shortDesc="#{bindings.Accounthldr.hints.tooltip}"
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                  </af:inputText>
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                                label="#{bindings.Bankaccountnumber.hints.label}"
                                required="#{bindings.Bankaccountnumber.hints.mandatory}"
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                                maximumLength="#{bindings.Bankaccountnumber.hints.precision}"
                                shortDesc="#{bindings.Bankaccountnumber.hints.tooltip}"
                                id="it20"
                                visible='#{bindings.Paymenttype.inputValue eq "DRO"}'>
                    <f:validator binding="#{bindings.Bankaccountnumber.validator}"/>
                    <af:convertNumber groupingUsed="false"
                                      pattern="#{bindings.Bankaccountnumber.format}"/>
                  </af:inputText>
                  <af:selectOneChoice value="#{bindings.Bankaccounttype.inputValue}"
                                      label="#{bindings.Bankaccounttype.label}"
                                      required="#{bindings.Bankaccounttype.hints.mandatory}"
                                      shortDesc="#{bindings.Bankaccounttype.hints.tooltip}"
                                      id="soc12"
                                     visible='#{bindings.Paymenttype.inputValue eq "DRO"}'>
                    <f:selectItems value="#{bindings.Bankaccounttype.items}"
                                   id="si13"/>
                  </af:selectOneChoice>
                  <af:selectOneChoice value="#{bindings.Bankname.inputValue}"
                                      label="#{bindings.Bankname.label}"
                                      required="#{bindings.Bankname.hints.mandatory}"
                                      shortDesc="#{bindings.Bankname.hints.tooltip}"
                                      id="soc13"
                                       visible="#{bindings.Paymenttype.inputValue eq "DRO"}">
                    <f:selectItems value="#{bindings.Bankname.items}"
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                                required="#{bindings.Branchcode.hints.mandatory}"
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                                maximumLength="#{bindings.Branchcode.hints.precision}"
                                visible="#{bindings.Paymenttype.inputValue=="DRO"}"
                                shortDesc="#{bindings.Branchcode.hints.tooltip}"
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                  <af:inputComboboxListOfValues id="inputComboboxListOfValues1"
                                                popupTitle="Search and Select: #{bindings.Branchname.hints.label}"
                                                value="#{bindings.Branchname.inputValue}"
                                                label="#{bindings.Branchname.hints.label}"
                                                model="#{bindings.Branchname.listOfValuesModel}"
                                                required="#{bindings.Branchname.hints.mandatory}"
                                                visible="#{bindings.Paymenttype.inputValue=="DRO"}"
                                                columns="#{bindings.Branchname.hints.displayWidth}"
                                                shortDesc="#{bindings.Branchname.hints.tooltip}">
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                  </af:inputComboboxListOfValues>
                  <af:inputText value="#{bindings.Paymenttype1.inputValue}"
                                label="#{bindings.Paymenttype1.hints.label}"
                                required="#{bindings.Paymenttype1.hints.mandatory}"
                                columns="#{bindings.Paymenttype1.hints.displayWidth}"
                               visible="#{bindings.Paymenttype.inputValue=="DRO"}"
                                maximumLength="#{bindings.Paymenttype1.hints.precision}"
                                shortDesc="#{bindings.Paymenttype1.hints.tooltip}"
                                id="it21">
                    <f:validator binding="#{bindings.Paymenttype1.validator}"/>
                  </af:inputText>
                </af:panelFormLayout>
              </af:panelFormLayout>
              <af:panelHeader text="Bank Details" id="ph6"
                              visible="#{bindings.Paymenttype.inputValue eq "DRO"}"
                              partialTriggers="sor1"
                              inlineStyle="width:556px; border-color:Blue; border-style:ridge;">
                <f:facet name="context"/>
                <f:facet name="menuBar"/>
                <f:facet name="toolbar"/>
                <f:facet name="legend"/>
                <f:facet name="info"/>
                <af:panelFormLayout id="pfl6"
                                    visible="#{bindings.Paymenttype.inputValue eq "DRO"}"
                                    partialTriggers="sor1"
                                    inlineStyle="width:550px; border-color:Blue; border-style:ridge;">
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                                required="#{bindings.Accounthldr.hints.mandatory}"
                                columns="#{bindings.Accounthldr.hints.displayWidth}"
                                maximumLength="#{bindings.Accounthldr.hints.precision}"
                                shortDesc="#{bindings.Accounthldr.hints.tooltip}"
                                id="it14" partialTriggers="sor1">
                    <f:validator binding="#{bindings.Accounthldr.validator}"/>
                  </af:inputText>
                  <af:selectOneChoice value="#{bindings.Bankname.inputValue}"
                                      label="Bank"
                                      required="#{bindings.Bankname.hints.mandatory}"
                                      shortDesc="#{bindings.Bankname.hints.tooltip}"
                                      id="soc11" partialTriggers="sor1"
                                      immediate="true"
                                      contentStyle="width:190px;">
                    <f:selectItems value="#{bindings.Bankname.items}"
                                   id="si11"/>
                  </af:selectOneChoice>
                  <af:inputText value="#{bindings.Bankaccountnumber.inputValue}"
                                label="Account Number"
                                required="#{bindings.Bankaccountnumber.hints.mandatory}"
                                columns="#{bindings.Bankaccountnumber.hints.displayWidth}"
                                maximumLength="#{bindings.Bankaccountnumber.hints.precision}"
                                shortDesc="#{bindings.Bankaccountnumber.hints.tooltip}"
                                id="it16" partialTriggers="sor1">
                    <f:validator binding="#{bindings.Bankaccountnumber.validator}"/>
                    <af:convertNumber groupingUsed="false"
                                      pattern="#{bindings.Bankaccountnumber.format}"/>
                  </af:inputText>
                  <af:selectOneChoice value="#{bindings.Bankaccounttype.inputValue}"
                                      label="Account Type"
                                      required="#{bindings.Bankaccounttype.hints.mandatory}"
                                      shortDesc="#{bindings.Bankaccounttype.hints.tooltip}"
                                      id="soc10" partialTriggers="si10"
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                    <f:selectItems value="#{bindings.Bankaccounttype.items}"
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                                                popupTitle="Search and Select: #{bindings.Branchname.hints.label}"
                                                value="#{bindings.Branchname.inputValue}"
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                                                model="#{bindings.Branchname.listOfValuesModel}"
                                                required="#{bindings.Branchname.hints.mandatory}"
                                                columns="20"
                                                shortDesc="#{bindings.Branchname.hints.tooltip}"
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                                required="#{bindings.Branchcode.hints.mandatory}"
                                columns="#{bindings.Branchcode.hints.displayWidth}"
                                maximumLength="#{bindings.Branchcode.hints.precision}"
                                shortDesc="#{bindings.Branchcode.hints.tooltip}"
                                partialTriggers="branchnameId" id="it18">
                    <f:validator binding="#{bindings.Branchcode.validator}"/>
                  </af:inputText>
                  <af:inputText value="#{bindings.Debitorderdate.inputValue}"
                                label="Date"
                                required="#{bindings.Debitorderdate.hints.mandatory}"
                                columns="#{bindings.Debitorderdate.hints.displayWidth}"
                                maximumLength="#{bindings.Debitorderdate.hints.precision}"
                                shortDesc="#{bindings.Debitorderdate.hints.tooltip}"
                                id="it17" partialTriggers="sor1">
                    <f:validator binding="#{bindings.Debitorderdate.validator}"/>
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                </af:panelFormLayout>
              </af:panelHeader>this values are on the same VO
Edited by: adf009 on 2013/02/21 5:23 PM

Can the front LCD Display Panel be use to send custom messages?

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Image Link - http://cdn1.xperiaguide.com/wp-content/uploads/2014/02/Xperia-Z1-Compact-using-AUO-Display-panel.jpg
Xperia Z1 Compact using JDI Display panel
Image Link - http://cdn.xperiaguide.com/wp-content/uploads/2014/02/Xperia-Z1-Compact-using-JDI-Display-panel.jpg
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Don't forget to give Kudos.

Castanje wrote:
Isn't this illegal?
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Please mark the post that solves your problem as Accepted Solution
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