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You may need to make sure there are no small pieces of paper left in the machine. Unplug it and let it set for about 30 seconds and then plug it back in and let it reset itself. Sometimes a jam can bend some small metal parts and cause it to give an error message. Check for this also. It should clear the error out once unpluged. If it is hardwired into the wall then the breaker will have to be turned off for the same seconds. Hope this does the job for you, all copiers and printers can be a headache when you need them most.
Col. Dana Gillespie
okay, try this...clear the paper jam message and try to make a copy using the manual bypass (MP tray) located on front of machine. if copy comes through okay, then chances are you have a problem in main cassette area. pull cassette out, and make sure the rear stop inside cassette is not pushed too tightly against rear of paper stack. should leave about 1/8" gap. if thats okay, then sounds like you may need your paper pickup roller replaced. sounds like your repair shop just fixed the error, not the cause of the error.
Thanks for using FixYa. Before you can clear the error message, you must locate where in the unit the paper is jammed.
Unplug the machine for safety. Now follow these instructions based on where the paper jam is located.
1.Pull the paper tray out of the machine.
2.Pull out the jammed paper.
3.Reset the machine by opening the Upper Jam Clear Cover and then closing it.
If you cannot remove the jammed paper from the front of the machine, or the error message still appears on the LCD after you have removed the jammed paper, please go to the next step.
4.Remove the Lower Jam Clear Cover from the back of the machine. Pull the jammed paper out of the machine.
5.Put the Lower Jam Clear Cover back on. Make sure the cover is set properly.
6.Open the Upper Jam Clear Cover. Make sure that there is no jammed paper left in the corners of the machine. Note: If the paper is jammed under the print head, unplug the machine from the power source, then move the print head to take out the paper.
7.Close the Upper Jam Clear Cover.
8.Close the output paper tray cover and slide it forward, then push the paper tray firmly back into the machine. While holding the paper tray in place, pull out the paper support until it clicks and unfold the paper support flap.
Please do rate the solution and revert for further assistance.
H4 indicates a heating problem in the fuser. The roller never reached a specific temp. Make sure the fuser is free of any left over paper pieces (maybe from a paper jam). Check to make sure its clean.
Try reseting the the error in service mode.
To enter the test command mode, press the keys as
follows one after the other :
[#] key [*] key [C] key [*] key then enter 14 and press start/copy key. this clear error counter. make sure to restart copier afterwards.
Open up the top and look into the cartridge/paper print area. Look in the corners, Sometimes little pieces of paper can still be stuck there. Once you are convinced that the paper and cartridge path is clear then...
Pull out the paper tray. Look inside the opening. If there is paper there then pull it out.
Take all of the paper out of the paper tray.
Turn it over (paper on top is now on the bottom of the tray)
Have an HP office jet d155xl printer and every time I put it on, it takes sometime to warm up then the "scanner failure" pops out on LCD with instructions to put printer off and on again. Same thing happens all over again.