20 Most Recent HP DeskJet 845c Printer - Page 6 Questions & Answers

check cartridge, remove and clear connector with alcohol and soft cloth, Put and check, if you do not help and you have a new cartridge, check on the new.

Try cleaning the print head first in the software options on the printer and then lightly with a qtip and alcohol or electronics cleaner. The ink jets sometimes dry up and cause the nozzels to get plugged.

There are a number of possible causes but none are realistically fixable as your printer is more than ten years old now and has far exceeded it's design life. If you're lucky then it's just a broken microswitch.

If you want to try and see if the fault is a simple one then you'll need to remove the casing and watch the machine as it tries to operate. What follows is based on the very closely related Deskjet 880c, but yours comes apart almost identically.

You'll need a torx driver with small sized torx bits (sorry, I don't recall the exact size) and a small flat-bladed screwdriver. You'll also need paper towels and an anti-static wristband. You may also need a continuity tester to check any suspect microswitches but it's often obvious if they're broken simply be the feel of the operating button when pressed.

Disconnect the machine from the power supply and open the lid. You'll see two torx screws which you need to remove. Turn the machine over and you'll see that at each endthere are plastic tongues which have clipped into the metal chassis. Use your flat-bladed screwdriver to carefully push these inwards and at the same time ease the end cases of the machine away from the main body of the machine. keep a careful eye out for any obstructions and be aware that the right hand end case (as viewed from the front) will have wired connections which you must be careful not to strain. If there are any loose/broken parts then put them to one side.

As the right cover comes off, be prepared for many years of inky goo. If it gets on your hands they'll be stained for a few days, so use the paper towelling. This goo is the residue left from every time the printer has been through a cleaning cycle and when it discharges ink whilst priming new cartridges before first use. If the goo is everywhere, then give up and bin the machine. It won't be worth the mess and effort to clean up all of the delicate working parts which probably won't work afterwards anyway.

If you had any loose parts then now is the time to see where they came from: detective skills are useful! If the broken part held a moving component then assess whether it can be glued or replaced by a bit of lateral thinking.

Now reconnect the power supply (it's a low voltage from a transformer, so is safe) and check the printer operation. Parts which may be causing the problem are normally things like microswitches, dislodged springs, broken spring locating tabs, dislodged/broken drivebands or failed motors.

Personally though, unless you like finding out how stuff works then just bin the printer. I've had dozens of free printers and multifunction devices from Yahoo FreeCycle over the last year and many work perfectly or have a really easy to fix fault (such as Epsons which need the service indicator resetting and maybe ink pads replaced). I take them, repair them and re-offer them on FreeCycle or sell them if i've any money tied up in repairing them. Older HP's are generally extremely reliable (my Deskjet 880c has had thirteen years of fairly heavy use and going strong) but when they fail it's normally for a really good and non fixable problem.

hello ! please check if the catridges is seated well .may be the sensor have not detected the catridges ., so as to reset the printers memory .

good luck

The problem might be with the type of paper you are using. Some printers require different paper types. Check the manufacturers website to see what kind of paper you need.

i dont know if anyone has logged this, but i would think that logically the lights would continue to blink until it detects the right amount of ink density and If they are chipped that the chip registers correctly. Ttry installing just one of the cartridges ( the cheaper one)

not all your text is in english! but here goes. Is it possible4 that the plqatten lever is in the open position that if the lever that separates the roller to allow thicker paper.. try moving it towards the -ve mark. Make suer you are using the correct paper and it is in the paper holder correctly.

try pushing a stiff sheet of poster board paper through the roller to make sure there are no torn pieces of paper stopping the paper path

It probably has, the printer might not detect your cartridges properly, try using new ones

can print letters and such, but cannot print pictures. I have put in new ink . So why can't I print a picure. have never had this problem. All 3 lights start flashing.

Check for any paper jams, I think the orange light mean that there is a error and therefore cant print, check incartriges and other areas inside

Se o papel não se está movendo através da impressora corretamente então você terá que substituir a picareta acima dos rolos. http://www.partshere.com/online/detail.asp?partno=C8934-ADF_ROLLER_KIT

OpenSource13

check youer power cable fixed prperly or change the power cable.check your power supply waltage and earthing working properly.

If you can't get a printer friendly page, Drag the mouse over just what you want to print. Go to File, Print. When the printer screen pops up, click on print selection.

It seems to me that either one or both your cartridges have defective [worn-out] sensors. Please try to replace your cartridges and the problem should resolve.

alexander king

go to your printer settings (properties) and make sure that printer is selected as default printer, or that "pause printing" is not selected. Also check to see if your printer is "online".

When the orange light is flashing, either paper jam or ink problem is happening.Try unloaging & reloading the stack of paper in the main tray. Remove & reinsert ink cartridges in the printer. You may also clean the contacts of the cartridge and inside the product.

in normal pc this will work but on vista it will not work like that .you will need to reload the printer drivers in the vista operating syatem then only it will work.its a personal experience solved many such problems in vista by reloading the printer drivers.

click the link and follow instructions from hp site here.

the paper lingt blink orange i don't know way...