The fault corrected itself since occurring, just once. When I turned it on to use the following day, however, the fault reappeared, and cannot be corrected.
The printhead on my Koday 6150 was completely stuck to the left under the hood. I could not pry it with anything to free up even when unplugged. While unplugged I turned the printer completely upside down (and not being that gentle) and plugged it in and on startup the printhead came free and moved again. I then unplugged and now with printhead moveable, I moved it around and cleaned the rod it moves on as it had a lot of ink residue. This worked for now.. will see for how long.
It's certainly possible that the rails that the printhead runs on needs fresh lubrication or the position sensor has become dirty.
Lubricate the rails with very light oil, such as sewing-machine oil. Clean the positioning "tape" carefully, use glass cleaner, not solvents, as solvents can remove the positioning marks; careful, it's fragile.
Best way to lubricate the rails is to open the printer so the head travels to the center, and unplug from the wall while the head is centered. Now you can move the head by hand, and see how hard it is to move it.
SOURCE: after paper jam was cleared a fault stating
It sounds like there is a SMALL piece of something in the intake well. If you have an air can, get it in there and spray the heck out of it. Be careful not to spray the actual ink cartridge though. I would even go so far as to tip the printer upside down, I know, it sounds rather barbaric, but something is jammed..... Please let me know if there is ANY thing else or if this does not work, we can go further. Thank you for the question, take care.... Guy
SOURCE: error on my printer says
Remove the cartridges and Print head if possible, unplug the printer for 10 mins, switch on and Re-install the head and cartridges.
Hope this helps
GM
SOURCE: After a paper jam and
In this printer the actual printing head is separated from the ink cartridge, it's part of the carrier. This carrier moves across the page on a rail. To keep the connection with the mainboard the carrier has a ribbon cable attached to it.
If the jammed paper has somehow went over the roller then the paper would have entered in the path of the carrier and its cable: the ribbon cable could have been dislodged or even yanked out of its socket from the carrier. If that is what has happened then the connection has been lost so the mainboard thinks that the printing head is missing.
To fix that you will need to manually pull the printing head to the left (with the AiO unplugged of course) and refit the cable in the carrier. If that doesn't fixes it the printer will have to be dismantled (6 screws on the bottom plus 4 on the sides and a lot of peripheral clips) and the cable replaced - it was damaged. This is a job that is quite complicated, you will need to take the printer to a repair shop. A spare cable is cheap, the labor, about 3 hours, will be expensive so you have 3 options (in the order of the cost):
1 - you try to fix it yourself - you have nothing to lose anyway.
2 - you discard this one and buy a new one.
3 - you have this one repaired by a shop.
SOURCE: printhead carriage jam
It all depends on who made the product. There are often times simple solutions but they need to be found by searching on the web and talking to service people about the unit. Some print head motors were known to fail or develop bearing noise over time in the HP line. Many of these things are really not prone to be fixed as the repair cost is sometimes the same as a new unit.
I would contact the warranty center- even if out of warranty and see if you could talk to a technician to start.
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