Our Xerox 8400 has a problem where you can see things on printouts that have been printed previously, typically large blocks of dark colour such as big text headings, dark lines and blocks of colour. This appears kind of like "echoes" - quite faint, but noticeable nonetheless. Some kind of maintenance needed?
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Re: Ink gets carried over to subsequent sheets
More than likely your maintenance kit roller has been impacted with ink and is not applying enough lubricant to the drum. You can replace the maintenance kit and run cleaning procedures a couple of times to allow it to clean up.
Now the other issue is if you are using a third party ink stick. By that I mean non xerox brand ink sticks. I have seen those cause that problem more often than not.
Pull out the maintenance kit and see if the large roller, which should be a off white, is black.
Exacly what is happening is your maintenance kit puts a very thin film of silicon oil on the drum so that the ink does not adhere to the drum more than normal. When that roller becomes blackened, it isn't very effective and you get some of that residual imaging.
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Try printing a light stripes test page (Troubleshooting, print quality problems, troubleshooting print quality page).
If you do not appear to have many missing jets but the colours are all just wrong it may be that the ink has gone stale. Run a couple of head cleans and you should see the colours start to improve. If it is getting better, all you can do is keep running head cleans until you have replenished all the ink in the printhead well. This problem is common in situations where a lot of black and white printing is done, with very little colour. Alternatively, it could be that your wiper/cleaning blade is not cleaning the head properlyand is smearing the different coloured inks across the head, or possibly that yourprinthead is leaking colours but I think the first solution should solve your problem. Hope this helps.
You can download the Print drivers from HERE.
Make sure you select the PostScript Driver v5.48.30 or you can as well use the Global Print Driver, which you can download from the same link.
Uninstall previous drivers and Install it as a Local Printer. Please be aware that if you are using a Server/Client structure the this instalation should be done on the Print Server.
After all that you should be able to print in colour. As a test print an Image file and make sure you confirm colour is enabled on the printing preferences of the driver.
Alternative would be to print a test page from the driver. This will also show you the colour prints.
The error is normally caused by the print head wiper being stuck to the print head or the print head pivot block being contaminated with spill over ink.
To clean the block you remove the left side cover. There is a stainless steel block about 1 inch by 1 inch about midway back on the lower frame. It would most likely have a lot of yellow ink in it.
If the wiper blade is tacked to the print head, you would remove the right and left cover. then remove the ink loader. ( where you place the ink sticks.). Once you remove the ink loader you are in the print head drum area and would gently detack the blade from the print head, then run the eliminate light stripes in the troubleshooting menu.
That is a problem with print head movement. Either side to side or tilt.
There is a stainless steel print head block located on the left side of the frame, about 2/3 of the way back and near the bottom, It may be contaminated with ink.
Or the print head wiper may be tacked to the print head.
If you want info how ot access and repair, let me know.
That is a print head tilt error. Either the print head pivot block is contaminated with ink or the wiper blade is tacked to the print head.
Let me know if you want to try to resolve it yourself, I will send you directions.
No, If one lamp goes out they both will not function. They do not have anything to do with print quality.
You may have a bad maintenance kit. but more than likely you have a bad print head.
Run the cleaning , eliminate stripes and eliminate smears modes. But more than likely the print head is bad. I would say a bad print head is about a 95 percent chance of causing your problem.
The halogen lamps only heat the drum, and if one was bad the machine would fault out with a 15,004 code.
Dark streaks are an indication of "burned" or overheated ink. This will occur when the printer sets for a long period of time and nothing is printed. The problem will usually disappear after 50 pages or so, unless the printhead is damaged.
If the print remains dark, the printhead will need replaced.
(Dark print can also be caused by using Non-Xerox ink)