Error Code HP Officejet Pro 8. Series Printer. For HP 9. Problem with printhead, represents there is either a printer Ink System Failure, a PRINTHEAD alignment problem or the internal PRINTHEAD has electrically failed. In some cases this error may also be caused by a misplaced smart chip on the refilled ink cartridge inspect chip for proper alignment refer to missing or damaged errors support page. TECH FLASHFor refilled HP 9. Click on the link below this will explain the issue offer a printer firmware download to fix the issue and allow you to continue using refilled ink cartridges click here. BASIC CHECKS Perform the following steps to see if the error state can be cleared 1. Select PRINTER MAINTENANCE and chose CLEAN PRINTHEAD. Check to see if the print quality test print is generated successful. Select ALIGN PRINTHEAD to calibrate the printhead. If successful, then test with a different document via computer. PRINTHEAD FUNCTION ADVANCED DIAGNOSTIC TESTS It is suggested to perform the following steps before you decide on replacing the printhead or obtaining a newreplacement printer. Plain paper should be used for testing to ensure this is not a paper sensing issue. However, depending on how much you have printed to date, there could be ink mist interfering with the media sensorsensing optics a very common problem in the large format printer models. Run thru our quick checklist to evaluate all variables that may be causing the issue http inkjet. Advanced System Care Pro 6 Setup Key For Hp' title='Advanced System Care Pro 6 Setup Key For Hp' />Remove ink cartridge and inspect cartridges smart chip surface i. Verify cartridges smart chip position is correct see pictures of cartridge chips at following link for reference http inkjet. Disney Mix It Plug In. Retest printer using plain paper or a different paper type standard bond is suggested. Php Project Script. Replace cartridge if suspected to be physically damaged. If smart chip position looks incorrect, return ink cartridge to your refiller for evaluation andor chip replacement. Perform Tap 4. 1 4. PRINTHEAD Health Diagnostics Test, along with supporting service leveldiagnostic tests NOTE service menu access procedures do vary by HP printer model, refer to HP printer diagnostics document, pages 4. Tap 4. 1 PRINTHEAD Health Diagnostics NOTE the following procedure applies to touchscreen printer models only Press Return button lower left side four 4 times until Support menu is displayed. Logitech Saitek Pro Flight Yoke and Throttle Quadrant System by Saitek by Logitech 945000023 Precision. Realism. Control. The Saitek Pro Flight Yoke System is. HP 17. 3 Laptop Intel Core i5 8GB Memory 1TB Hard Drive HP finish in jet black. Learn how to do just about everything at eHow. Find expert advice along with How To videos and articles, including instructions on how to make, cook, grow, or do. At A Glance. The HP ProLiant DL380, the worlds largest selling server, delivers on its history of design excellence with enterpriseclass uptime and. At Support Menu, using the arrow key, navigate to the Service Menu, press Ok. Use arrow keys to advance to the Special Reports Menu. Select OK. Use arrow keys to advance to the print mech button tap menu. Select Ok. code 0 will be displayed. Use arrows keys to change value to 4. Advanced System Care Pro 6 Setup Key For Hp' title='Advanced System Care Pro 6 Setup Key For Hp' />Buy eero Pro WiFi System 3 eeros Advanced TriBand TrueMesh, Gigabit Speed, WPA2 Encryption, Replaces Wireless Router and Range Extender, Works with Alexa 2nd. MacOS High Sierra brings new forwardlooking technologies and enhanced features to your Mac. When Code 4. 1, select OK. The diagnostic test pattern will print. Check the 4th line at the top of the printed report an electrically goodstable PRINTHEAD will state Pen Status Pen OKif any other message is displayed then the PRINTHEAD may have failed and may need to be replaced. Re seat PRINTHEAD andor clean rear electrical contacts and repeat Tap 4. Nozzle test use to determine if all ink cartridge nozzlesprinthead is firing all colors properlyPress return arrow 4 times. Press support menu. Press right arrow 5 times to print diagnostic menu and press ok. At nozzle test press ok. Self testprinter status use to print internal printer settingsPress return arrow 4 times. Press support menu. Press right hand arrow 7 times to reports menu and press ok. At self test report press ok. Extended self test use to evaluate color performance and obtain total page countPress return arrow 4 times. Press support menu. Press right hand arrow 7 times to reports menu and press ok. Press right hand arrow 1 time to extended self test and press ok. Print Quality Diagnostic Page use to determine if printing alignment is correctPress return arrow 4 times. Press support menu. Press right hand arrow 7 times to reports menu and press ok. Press right hand arrow 2 times to Print Quality diagnostic report and press ok. Print head recovery runs intensive printhead service cleaning routines, i. Press home key twice. Then return key. Then home key twice. Then return key. Then home key twicethis will gain access to the Engineering Menu. Press the service menuPress right arrow 4 times to service test and press ok. Press right arrow. Press ok to activate either of the 3 selections above. Semi full reset can be used to help address intermittent or incorrect printer behavior issuesPress return arrow 4 times. Press support menu. Press right hand arrow 2 times to Resets menu and press ok. Press right hand arrow 2 times to semi full reset and press ok Note this will return printer to factory default condition regional setup will be required following this action An internal electrical failure of the PRINTHEAD generally has nothing to do with refilled ink cartridges as failures will normally occur over time and with average print use. The PRINTHEAD assembly is a separate electronic unit in which the cartridges plug into and feed ink into. To rule out printercartridge connectivity i. PRINTHEAD assembly interfaceconnection issues please ensure you have followed all steps on HPs support page this includes PRINTHEAD removal and thorough cleaning of the electrical surfaces on the PRINTHEAD and on the CARRIAGE ASSEMBLY http www. Remove all 4 ink cartridges, then remove the internal PRINTHEAD and thoroughly clean rear electrical contacts and carriage electrical contacts. Inspect ink foam ports to see if they are wet with inkthis will confirm whether ink is being pulled into the PRINTHEAD or not. If the ink foam ports are completely dry no significant amount of ink present when blotted with a paper towel, etc., then the PRINTHEAD is likely considered too dry to support proper ink flow and subsequent printing operations. Refer to PRINTHEAD removal process at HP. If after thorough electrical contact cleaning the problem persists, you may need to replace the PRINTHEAD ASSEMBLY i. Amazon, however, as a last ditch effort, you might want to perform a hot water flush on the PRINTHEAD Remove all ink cartridges from the printer. Remove the PRINTHEAD  for most printer models you will need to pull up on the lever adjacent to carriage assembly to unlock the printhead NOTE printhead cannot be easily removed on 8. Lift printhead straight up to remove. Over a sink, run warm tap water directly into the 4 ink ports for approximately 2 minutes this will effectively saturate the foam ports and blow ink outthru the nozzle plate bottom. Using a lint free towel, remove water from rearbottom electrical contacts. Ensure printhead electrical contacts and exposed surfaces are fully dry. Install the printhead into the printer. You may observe a Replace Printhead message so you will need to cycle printer power by turning printer off and then on to clear the error. Install ink cartridges and retest printer. You should observe a New PRINTHEAD alert message followed by an approx. If permissible, activate the Clean Printhead. This can be done from the printers control panel or software printer driver for example, by selecting Tools Clean Printhead, or similar. If you have reached this point of the troubleshooting and all the previous troubleshooting steps did not work, then the printhead is likely damaged or at end of lifeand may need to be replaced.