Troubleshooting: judging from the fault phenomenon, should be caused by mechanical fault feeder system. Take . Take away the printer cover, paper guide and paper frame unloading, then remove the print head and feeder, then open the printer rubber roller, found five paper feeding wheel groove roller pressure below. The paper is based on the friction wheel and the roller printing paper feeding process. A careful inspection of the five type, found the median of a cost greater strength to pull it, and the other with the fingers can turn. Estimation is the machine often printing stencil, the operator and the occasional improper operation, causing a large deformation of the paper feeding wheel.

Considering the machine less printing large format paper, will whim, want to use the right two less common feeding type one, replace the one center. So a lot of time with great care to printer apart, only to find that if there are no special tools are unable to assemble the five type, "substitution" seems to be impossible. But from the paper feeding wheel itself efforts, have a look whether to find a solution to the problem.

The first is for the rubber blade gently scraping the stick a little wax layer, to try to push, still very hard, does not solve the problem; don't do two cease, both sides support simply insert clamped type with a screwdriver, gently prize, reduce frame on both sides of the tire pressure, then add lubricating oil, try to poke the rubber wheel, and agile many. In order to consolidate the results, and repeat the operation again. Finally, carefully put down zero zero odd parts one by one back, starting test paper, the fault does not appear, the problem was finally resolved.

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