HP2600n ? soft grainy texture printing in background
We had this problem once before, it was even on the troubleshooting list as, "Toner appears around the printed characters". Last time, it ended up that HP just told us to exchange it, but now we don't have that option. The new printer we exchanged it for is doing the same thing. I remember being told by HP support to clean the ETB many times and have done so, but the problem does not seem to go away. Any ideas of other things to try??? __________
"inside the image tranfer belt unit,there have 4 rollers ,just
clean both end of roller and also the contact metal spring clean that
and bend it little bit make sure it contact perfect, should be take
care your problem" I apologize, I am a designer and have never done any maintenance
like you are talking, how do I do this, is there anywhere that provides
diagrams or steps of how to take the rollers out? What do I clean them
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Re: HP2600n ? soft grainy texture printing in background
Inside the image tranfer belt unit,there have 4 rollers ,just clean both end of roller and also the contact metal spring clean that and bend it little bit make sure it contact perfect, should be take care your problem
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I actually own the same ice cream maker, and it has made some very good ice cream for me. The most likely causes of grainy ice cream are too short of a time in the machine or recipes with incorrect proportions of water, fat, and sugar.
Firstly, make sure that you are using one of the recipes provided in the maker's user manual, or a different recipe from another source which says that it works with all ice cream makers. Following these recipes will ensure that your ice cream base (the liquid that you pour into the machine) is the correct consistency and composition for freezing. For example, too much sugar could cause improper freezing by oversaturating the solution, or too much fat (or fat incorporated incorrectly) could cause the mixture to become grainy or separate.
If you are using a recipe that calls for eggs, make sure that you mix them with the listed amount of sugar thoroughly before tempering them with the hot cream/milk solution. Additionally, make sure that you only pour a little bit (quarter - half cup) of the solution into the egg mixture at first, stirring thoroughly, before adding the rest. This assures that the eggs do not curdle when heated, which could cause a grainy texture.
Finally, make sure that you are freezing the mixer bowl overnight, using chilled ingredients, and allowing the machine to run for the full 20-25 minutes. The ice cream should be a bit softer than the consistency of soft-serve when you take it out of the machine - easily scoopable with a spatula. If you like it firmer, an 8 to 48 hour freezer session will greatly improve the texture in my opinion.
This can depend on if they are white or black lines and if you can feel a texture on the paper. Most often the cause is a bad toner cartridge. If you are using generic toner cartridges, I would suggest trying a new HP one instead to see if it clears up. If you feel a deep texture to it, the fusing unit may be wearing out and need to be replaced.
This could be caused by a couple of things. The first one is the toner cartridge. A defective or low toner cartridge can cause light "grainy" looking copies. If you have a spare toner cartridge try that first. The second possibility is dirty scanner optics. The scanner bar that lights up under the glass and moves back and forth has 3 mirrors on it. When they get dirty is causes your scanned image (before it gets copied) to appear light and patchy looking. The glass must be removed by removing the 4 screws on the left hand side. Then the scanner can be pulled out and the 3 mirrors cleaned. If you have the machine hooked up to a computer to be able to print then these mirrors will NOT affect PC prints. If PC prints are grainy then that would point to the toner. The dirty mirrors will only effect the copies.
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Inspect imaging drums for any signs of leakage or excess toner that could be falling onto the print as it travels though the printer. Any leaking imaging drums should be replaced.
Verify environmental conditions. See article Dealing with humidity, humidifiers. If the environmental conditions are not within the specified range, the printer should be moved before trying to troubleshoot the cause to the background toner.
Determine if any of the imaging drums were exposed to light for an extended period of time (more than 10 minutes). If so, then Replace the imaging drum. (Xerox is not responsible for any imaging drums that have been damaged by over exposure to light.)
Additional Recommendations: Background toner may increase, if printing occurs at temperatures towards the higher end of the specified operating temperature range. For this reason, it is recommended that the printer be moved to another area if at all possible.
In addition, very smooth media types such as glossy; allow toner to more easily scatter about the page prior to becoming fused. Try using a less smooth media if at all possible.