It continues to post a message on the screen that says," Improper Shutdown, To avoid Damage, use the ON Button . . . ., but when I press the ON button it cycles through that screen, the startup screen and then back to the RED on top, BLUE on bottom BLACK in the middle saying "turn power off then on again". No sooner do I press the ON button and the the whole process starts over again. It immediately returns to the Blue Start Up screen with the HP logo in the middle of the screen. Any ideas?

If you wish to get some details; check the site linked here. Pull up older posts..
http://electro-medical.blogspot.com/

Reset the product:
1. Without turning off the product, disconnect the USB cable from the rear of the product.
2. Remove the cartridges from the product.
3. Wait for the 'Insert Cartridges ' message to display on the control panel.
4. Disconnect the power cord from the back of the product.
5. Wait 60 seconds.
6. Reconnect the power cord. If the product does not automatically turn on, press the Power button ( ).
7. Reinsert the cartridges, and then close any open doors on the product.
8. If you receive a prompt to print a calibration page, do so.
9. Reconnect the USB cable to the rear of the product, and then try printing again.

If this reset won't work ...open the front door ..and move the carriage to look for any paper left from a previous jam or so ...Make sure there is nothing blocking the ink carriage ..and than close the door and make the reset again ..
print a calibration if it asking for ..
BY the way ...it may be a good idea to reinstall the software again too ..

If this will not work ..try this ..:
A. - Press and hold the "*" key.
B. - Press the "#" key and release both keys.
Display should say "Enter Special Key Combo"
C. - Press and release in sequence the "1", "2" and "3" buttons
Press and release the "OK" Button. Message changes to "Hardware failure status Cleared. Press Cancel to continue".
Press and release the "CANCEL" button as many times as necessary, so that, either the "Welcome to Photosmart Express" screen appears, or, the "Ink System Failure" screen appears. PLEASE DO NOT TRY TO PRINT AT THIS STAGE.
Using the Power Button, turn the unit OFF and unplug the power cable from back of the printer and wall outlet.
Wait 30 seconds for the power to get discharged and then plug the power cable into the wall outlet first and then into the back of the printer
Turn the unit on. The printer may display message "USE POWER BUTTON TO SHUTDOWN THE PRINTER" followed by "PRESS OK TO CONTINUE".
Press OK. The Printer will start the "ONE TIME INK INITIALIZATION PROCESS".
Allow this process to complete and do not interrupt. Once the initialization process is complete, the printer will print out a Diagnostic Page.
If it shows improper shut down ..press on to shut down ..
Turn the unit on. The printer may display message "USE POWER BUTTON TO SHUTDOWN THE PRINTER" followed by "PRESS OK TO CONTINUE". Press OK.
message: "welcome to photo-smart express"
Using the Power Button, please turn the unit OFF and unplug the power cable from back of the printer and wall outlet.
Now plug the power cable into the wall outlet first and then into the back of the printer.
Turn the unit on. The printer may display message "USE POWER BUTTON TO SHUTDOWN THE PRINTER" followed by "PRESS OK TO CONTINUE". Press OK.
Press Setup menu on the All-in-One then scroll using the arrow key and select Print Report then select Self Test Report.
Print the report and if it is all OK ..it will work ..

1. Disconnect the power cord from back of printer ( while printer is powered on )
2. wait for 10 seconds
3. hold and press the Power button and connect the Power Cord.
4. Release the Power button after 3 seconds
5. Follow the Instructions on the printer screen.

Later try to shutdown it, it should not give the message again

Reset the printer by following steps
1. Unplug the power cable from printer when the printer is powered on and wait for 20 seconds.

2. Then, press and hold # and 6 while plugging in the power cord.

Continue holding until it displays Semi Full Reset message in the front panel of the All-in-One.

Got the same problem following a message "Printer ink failure" code 0xc19a0035. Instructions say to shut down using button on/off. But printer refused to shutdown. After 30 minutes, I disconnected power cable. Removed cartridges. Reloaded cartridges. Reconnected power cable and got "Improper shutdown" message with continuous cycle. Solution: 1. While the printer is still turned on, unplug all cables and cords at the back of the printer.
2. Unplug the power cord also from the wall outlet...
3. Wait for two minutes.
4. Reconnect power cord to the wall outlet first.
5. Press and hold the pound (#) and six (6) buttons.
6. While holding down the two buttons, reconnect the power cord to the back of the printer and after two seconds, release pound and six buttons.
7. Turn on the printer if it turns off... and it's fixed. 8. Be patient to let printer run its tests.

Got the same problem following a message "Printer ink failure" code 0xc19a0035. Instructions say to shut down using button on/off. But printer refused to shutdown. After 30 minutes, I disconnected power cable. Removed cartridges. Reloaded cartridges. Reconnected power cable and got "Improper shutdown" message with continuous cycle. Solution: 1. While the printer is still turned on, unplug all cables and cords at the back of the printer.
2. Unplug the power cord also from the wall outlet...
3. Wait for two minutes.
4. Reconnect power cord to the wall outlet first.
5. Press and hold the pound (#) and six (6) buttons.
6. While holding down the two buttons, reconnect the power cord to the back of the printer and after two seconds, release pound and six buttons.
7. Turn on the printer if it turns off... and it's fixed.

1. Turn on the HP All-in-One.
2. Disconnect the power cord from the back of the unit.
3. Press and hold the # and 3 buttons simultaneously.
4. While still holding down the # and 3 buttons, connect the power cord to the back of the unit.
5. Continue holding the buttons until the Power button blinks.
6. Follow the instructions that display on the unit to select the language settings.

Then when that's done, try printing, or copying items. If its still not working, check the ink and change those out and this should fix it.
Cloud Striver
If you have further questions email [email protected]

This is likely a hardware problem. However you can try a sem-full reset to factory default conditions by 1. unplugging the power cord while the printer is powered on and 2. press and hold the OK and Cancel buttons while plugging in the power cord. If this this does not clear the error you probably have a hardware issue. On my printer, after going through a diagnostic procedure with the HP Chat Tech and concluding a hardware issue I did a bit more research and then took the printer apart. It turns out that a fairly common problem is for the large white gear on the left side of the printer that drives the ink pump comes off the shaft. I reassembled it to the shaft and put the printer back together. When I plugged in the power cord the printer started and did about a 5 minute maintenance procedure and now works fine.

You have to refit the micropump gear, this is happening because this gear should be out of its place. It's on the left side of your printer. I.ve just solved the same problem.

Hello johnny22, this is Enday inorder to solve your problem ..try this steps....uninstall your printer and then re-install the software again.... just see if its work...

If not just reply me inorder to give you another solution....