Sometimes when printing in black the image that is printed on the top of the page faintly reprints again lower on the page....it is like the ink stuck to the roller? and next time the roller passed the paper it not only prints what it is supposed to print, but also a fainter version of what it printed immediately preceding. How do I clean the roller? or whatever is causing this problem?
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Re: Printed image repeats later
I have a Dell 5100CN, and believe that this problem is caused by the drum not releasing the full charge which holds the ink in place on the drum until the page is printed. After the image is transfered to the Drum, the 'Fuser' unit heats up the paper and pressure forces the paper against the drum to transfer the toner from the drum to the paper.
Since the Image is printing, and you are getting a ghost, I guess that the problem is most likely the 'Pressure Roller' or 'Heater' in the 'Fuser' unit.
Buying the Fuser unit from Dell could cost you around $200 from Dell, but I just found one on eBay for $129 Got to www.ebay.com and search for item number 190388919845
I highly recommend that you buy a new OEM (original Equipment Manufacturer (Genuine Dell)) 'Fuser Unit'
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1) try doing a full clean from within the menu on the printer, or within the computer software
2) You need to perform a half test. Put a sheet of paper on the manual feeder and do a config page from the information menu on the printer. When the back edge of the paper enters the printer, quickly open the toner door to stop the printing. Now remove the toner cartridge and look at the image below. If the defect is present, then the toner cartridge is the problem 99% of the time. There is a slight possibility that during the conditioning stage of the print process the drum of the toner is not being fully discharged so when the next stage takes places part of the previous image gets put on the toner cartridge again. Very rare. If the defect is not present then the fuser has an issue.
normally you go to printer settings and look for where it says page quality. make sure the page quality is set to normal or fine. this will make it black. if it is on a setting lower than this it will cause the printed document to appear grey.
i have found that removing the toners, and shaking them side to side, while keeping them horizontal, which seems to spread the toner for even distribution. This can sometimes fix the problems with fading prints. hope it helps. Margins i think might be a problem with the wysiwyg of the program, some don't do it well, but also excel in particular has a shrink to fit page option, you may find the percentage not at 100%. you can also copy an excel table to word and print from that if it is driving you nuts.
1. faulty wiper blade on your toner so that the previous image in not being wiped off the drum.
2. worn fuser sleve.
To work out which it is you will need to do a half stop test: print off a normal document then when it is about half way through the printer ( unfortunatly you may have to repeat this to get the timing right) open the front cover. remove the toner cartridge. if you can see the ghosting on the page the it is the toner. if its not there then its a new fuser. to save on money and if your confident enouh you may be able to just chane the fuser sleve depending on the state of the fuser on a whole.
hope this helps
feel free to email me if you have any other questions:
The PHOTO mode is for printing grayscale photographs. Printed letters using PHOTO mode may appear faint because PHOTO mode is optimized for halftones. See if there is a TEXT or LETTER print mode, and try printing on that setting. If printed letters are still faint, you may have to go into ADVANCED PRINTER PREFERENCES, and see if the TONER SAVE mode is on. If it is, turn TONER SAVE off. Also, try changing the DPI image density, or try other adjustments in the ADVANCED PRINTER PREFERENCES MODE.
Are they lines from one edge to the other in a straight line. Or is it faint reprint across the page?
Thin lines would most likely be a bad drum or cleaning blade.
If it is faint reprint it is the heat roller in the fuser.