My HP Color Laserjet 9500hdn is printing faint yellow streaks near the bottom of page. It's not noticeable at first, but the longer it prints, the more visible the yellow streaks become. It was happening with magenta for awhile, but seemed to go away after a periodic calibration. The yellow toner, however, isn't fixing itself with a calibration. Does anyone have an idea what this might be a cause of? There's about 20% life left in the color drums and toners. The image transfer kit and fuser kit were replaced about a week ago. Any help is greatly appreciated.
I'm not familiar with this model but have you ran the cleaning mode if it has one?
Hello John, Thanks for the quick reply. There is a cleaning mode that the printer goes through when a new cleaning kit is installed. The life for the current kit is at 73%. Seems like I noticed this problem once before, and I ended up buying a new set of drums, which might have corrected the problem, although it seems like I've had an issue pop up since then. I just printed a status page, and the current set of drums are at 33% life for the cyan, magenta, and yellow. The black drum was recently replaced. I got the drums off of Ebay (from different sellers) instead of purchasing from HP. Is it possible that if I bought old drums from a seller, that this could be the problem? The yellow toner cartridge is at 25% life. Before the yellow streaking, it appeared that the magenta color was depositing a pink tint on the bottom of the 11x17 pages, but apparently was corrected when the printer went into an automatic calibration mode. It was after this operation that the yellow 'staining' seemed to be happening. Thanks in advance for any additional thoughts.
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SOURCE: HP color laser 2550L prints only in yellow
Hi Mmgrafde,
Press the Go and Rotate Carousel buttons simultaneously. This will calibrate the printer. See if this works.
Otherwise....Remove all cartridges and drum. Switch off printer. Close the lid. Switch on printer and wait until any churning stops. Insert the drum and close the lid. Wait until any churning stops. Put in one cartridge at a time, closing the lid and wait till it stops churning each time. With the last cartridge put in, it will churning longer (calibrating). Try to print from your computer.
It could also be that the toner could actually have run out for the other colors.
Rgds
S88
SOURCE: HP color laser 2550l prints only yellow
Are you sure that none of the other colours are empty? If they are then this could be the problem
SOURCE: HP cm1017 Color M & Y don't print correctly
You've 2 0r 3 problems here.
First NEVER use an air blower in a laser printer. You'll just blow toner deeper into the printer and could make things worse AND there's potential for damage due to static from the air blast. I've seen priners that were working OK, but had a leaking cartridge in them - 'cleaned' using an airline, and they never worked again !!
Problem 1 - weak magenta and yellow.
This will have started with the magenta being weak, become weaker, and later the yellow will have also started to deteriorate.
Dirty laser unit - needs (careful) cleaning internally.
See ' Printing Weak Magenta', 'Printing Light Magenta' for HP CM1015, HP Color Laserjet 1600, 2600, 2605.
All the same laser unit.
Problem 2 - Misalignment (Out of register) colours.
Registration of the colour cartridges, so that they can be used together to produce the colours in between the yellow, magenta and cyan of the cartridges themselves, takes place during 'calibration'.
If one of the sensors on the Transfer belt fails, the calibration seems to take for ever (and actually fails), giving rise to this colour offsett. The sensor is not available, and not replaceable, you'd have to change the Transfer Belt.
Your symptom 3 is related to the problem 1 above.
SOURCE: I have an HP 5550Dn
I assume that the Verbatim toner cartridges are a generic brand in which case I suggest that is your main problem.
I have attended many repairs of these printers with the same issue and putting genuine toner cartridges in has resolved the matter in 99% of cases.
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