Printer AIO 922, Solution of white lines

I have a printer Dell AIO 922 a 3 or 4 years. It has been a very solid performer like a use inkjet housekeeping and I wouldn't hesitate to buy another Dell printer based on this one.

Recently, it started showing the white lines, or more precisely, the horizontal white gaps. As the snapshot on the right. I searched everywhere but not found a solution. Available notice usually includes nozzles cleaning or using the alignment. A proposed post to wipe coding transparent plastic strip. These things did not help. Being an engineer and a professional problem solver, I decided to understand it. I hope that it is beneficial for someone else, as I often took advantage of other messages.

First note is that it is a paper feeding issue, nozzles ink jet not blocked because there is no ink "missing." If you close the gap, the letters would be properly trained. The gap that has happened on each 37 mm (1.4 inches) to the bottom of the page. I was thinking one of the plastic gears in the drive of the paper feed system is broken or clogged with impurities, etc. With that, I decided to open it up and look at the bowels of the printer. I realize that many people prefer to go out and buy a new printer that do this, but it's for the rest of us. Because it is unusable, and there is no alternative available, I had little to lose.

I unplugged all the cables power and carefully removed the top of the hinge scanner, being careful not to damage the cables sheet fragile 3 or 4. So I removed the 3 screws in the lid of the lower unit (printing). Carefully open and removed the lid of the snap-in using a knife and a flat blade. ATTENTION: you may need a second set of hands very patient to avoid damaging the hinges and cables that connect the top scanner at the base of the Ribbon. All cables can be removed gently from their connectors, but it's a little tricky. Tip: tape the scanner to scanner bed cover and the support arm to scan at the base of the scanner so that they are not flop around as you work on this.

Now, you are looking in the Open box. On the right side of the friction of the main axis of power (the tree is approximately 1/2 "in diameter and has a rough surface to pull the paper into the printer) is a thin, transparent plastic disc. There are thin black lines around its outside edge that pass through an opening with an optical sensor that the shaft turns, driven by the engine. This provides a precise location feedback paper power control.  The disc is difficult to achieve, so I took a Q-Tip with alcohol to friction and wiped two sides that I shot it through the white plastic gear. Make sure you do not damage it. I repeated until the Q-Tip has come back clean. It looks like a small jet of ink mist gets type everywhere inside the printer, judging by other surfaces. So, after a few years of use, he had finally started do the misread encoder and cause the power issue of paper resulting. I have put together and he has beautifully reprinted.

In this printer and I suspect in many other inkjet printers, there are 2 sets of engine controls, mechanisms and encoders. One for the race the printhead horizontally and one for paper feeding. In my research, I have never seen this mentioned. I've seen many, many messages asking for solutions to the "horizontal"white lines "-much of which doesn't seem to find solutions.  So, here's my karmic contribution to those who are willing to delve a bit inside the box. Good luck.

Awesome! Thanks a lot for posting this solution. I just followed your procedure for my Dell 922 AIO printer works again.

Tags: Dell Peripherals

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