Display panel problems on HP Officejet 8600 printers

The LCD touchscreen display is very light, blank, unreadable or broken...


Solution 1:

• Unplug the power cable from the printer and the wall.
• Wait 10 minutes.
• Plug the printer back in directly to a wall outlet.

Solution 2: (for a blank screen)

• Unplug the power cord.
• Wait for 2 minutes
• Plug in the power cord and power on the printer
• Wait for the printer to enter ready mode
• Download and install the latest Firmware from HP.com for your model:
• http://www8.hp.com/us/en/support-search.html?tab=1#/qryterm=officejet%20pro%208600e%20all%20in%20one...

Solution 3:

• The product display is blank or black.

Solution 4: you have to replace the Display Control Panel.

• For HP Officejet 8600 series, the part number of the Display Control Panel is  CM749-60021:

• For HP Officejet 8500, 8500a series, the part number of the Display Control Panel is  CM758-60006: