HP Color LaserJet 5500DN - streaks. Photos attached.

[Swampfoot]

Images of the print quality troubleshooting pages printed from the onscreen menu. The streaks appear to be only Black, Magenta, and Cyan. No Yellow.
I took out the carts and had a look at the drums. The Black, Magenta, and Cyan had excess toner around them in the same spot, but not the Yellow. I wiped them off with a dry cloth while carefully rotating them through 360 degrees. My instincts tell me the wipers have failed in those three carts, but all three in the same place on the wiper's length?

I cleaned the image transfer belt with a dry cloth (it had a big streak of toner on it). Then ran a calibration cycle from the Print Quality menu. The above-linked pages are the result.

I got this workgroup 12x18 color laser rig for $99 from a business that couldn't get the manual feed tray to work, but I fixed that. It was initially a non-duplexing 5500 but I put in a 5500DN motherboard so it duplexes now. I also got a jetdirect ethernet card and a cheap router running DD-WRT so it's essentially wireless now.

So is the sunk cost fallacy killing me, or should I get three new toner carts for the thing? Is that likely to fix the issue in the photos?

Thanks Jedis.

 

[ebulich@]

I think that looks like a transfer belt issue. Your magenta toner cartridge is either empty or has problems with the developer roller. You may want to open the flap on each cartridge and see if there is toner on the edges that correspond with the marks coming out on your paper. It could also simply be bad or old cartridges.