Unknown Printer
Hi,

Experienced technical support provide their insights in answering this question :
Looking at that photo, it’s definitely nothing to do with electronics, high voltage or the laser assembly. I noticed you are using compatibles. I’ve seen a lot of those bad right out of the box.

How to Identify and Fix Common printer Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

What causes the spots? The usual cause is a dust particle that falls on or is stuck to the paper. Then as the paper runs through the printer, the ink gets laid on top of the particle instead of the paper surface. Eventually the particle falls off leaving a white spot where it blocked the ink.
Dots are typically caused by foreign material inside the machine (for example paper dust, glue from labels or envelopes, paper clips, staples) sticking to or damaging the surface of the drum. Toner builds up on or sticks to these areas on the drum and creates black dots on the printed pages.
This is most often caused by using paper that is damp, is of poor quality, or not designed for this machine (ie: Inkjet paper) It can also be caused by the machine not being placed on a solid, level surface, poor calibration, or uneven distribution from a low toner cartridge.
White lines will typically start appearing on your print outs due to a clogged up printer head. Your first port of call when solving this problem is to run the cleaning program on your printer, which should be accessible through its settings menu.
Smears and smudges on the paper can be caused by dirt, dust, or toner accumulated on the rollers or transfer belt as it passes through the paper. Cleaning your printer, particularly the rollers, is one of the options for removing black markings from paper.
Usually a quick paper setting adjustment will clear up a ghosting issue right away. Run a cleaning – Most printers have a cleaning function built into the machine. Run this a couple of times to attempt to clear up the printing issue. Inspect the drum – Sometimes excess toner powder can stick to the drum.
If your PC or the LCD screen on your printer is telling you that your ink cartridges are full but no ink is passing through to the paper, then it`s most likely that you are dealing with a clogged printhead. Blurry documents and images that appear faded are also signs that it`s time to remove the excess ink.
Streaking is usually caused by a worn out drum unit or spent toner cartridge. Drum units are a consumable and only need to be replaced after the use of 3 or 4 toners. Not all printers use a separate toner and drum unit.
Ghost prints happen when the drum or fuser unit within your printer become faulty. Because a fault with this element won`t heat the particles of the toner to a high enough temperature, the marks being made on the paper are much lighter in colour and appear more faded than typical documents.
Bleed refers to an extra 1/8” (. 125 in) of image or background color that extends beyond the trim area of your printing piece. The project is printed on an oversized sheet that is then cut down to size with the appearance that the image is “bleeding” off the edge of the paper.
In short, the white residue comes from UV-curing wet parts that still have a mixture of resin / IPA on it. usually this is most visible in areas that are difficult to wash. To solve this you have to wash it better / longer in IPA. And before post-curing the IPA should be completely evaporated.
Choose “Printing Preferences” from the pop-up menu, then look at the setup options your print driver provides. Usually, there will be one called “Layout” or “Page Layout.” Once you`ve clicked “Layout,” you should have the option to manually set your margins to zero.
In short, the white residue comes from UV-curing wet parts that still have a mixture of resin / IPA on it. usually this is most visible in areas that are difficult to wash. To solve this you have to wash it better / longer in IPA. And before post-curing the IPA should be completely evaporated.
Banding is a defect in inkjet printing that will appear as horizontal or vertical lines, streaks or bands in the printed output. Everyone will eventually experience some type of banding with their inkjet printer.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Kyocera M6026cdn – Somewhat random white blotches on printed page
ANSWER : Looking at that photo, it’s definitely nothing to do with electronics, high voltage or the laser assembly. I noticed you are using compatibles. I’ve seen a lot of those bad right out of the box.

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Prints blank pages, won't print from computer
ANSWER : Don’t know why you replaced the fuser, but assuming you had print before, then it must have been something you did during the procedure. Only thing I can suggest is to recheck your work. Just because you reinstalled a connector doesn’t mean that it is seated firmly enough to work. Any flat ribbon connectors that you removed and reinstalled, check to see that the contacts are all flat and not peeled back.

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HP LaserJet 2200D won't print configuration page
ANSWER : Find someone with a HP LaserJet 4100 and you can configure the card to the IP you want:

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Black line printing in the middle of the page from top to bottom
ANSWER : Take out the toner cartridge and look at the drum. If you see the line, replace the cartridge. If you don’t, then you need to replace the fuser assembly.

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when printing front and back, the front will print well but the back will fade
ANSWER : It happens because second side voltage is much higher and the board breaks. Are you getting this issue in auto duplex only, or same error you are getting when you print second side manually?

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HP Officejet 860 printer printing blank pages
ANSWER : First check the exact ink levels, replace if any one are low or empty.

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incomplete printing of page
ANSWER : the printer for above mentioned problem is an Epson; product name = WF-254

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printing blank pages
ANSWER : You can’t let an inkjet printer sit that long. Try flushing the heads. Take out all the ink tanks and to the right of the assy. you will see a plastic lever. Lift it and it will release the heads. Take it to the sink and using hot running water, flush it from top and bottom several times. Then blot it dry and reinstall.

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Unknown Printer