Laser Printer Print Quality Faults And Resolve Quick Check Guide - Laser Printers, Office Equipment

For the laser Printer , Because it works similar

, so a lot of quality failures are a variety of models can be generic. Laser printers when using a certain number of years, that output a certain number of proofs, its print quality will decline, some parts used to the limit, there will be print quality defects. Some are because of our principle and performance of laser printers are not familiar with, so in operation without adjustment to the best of their status or still in the wrong state, there are non-compliant use of materials, so that the output results are poor, this is what we call "failure is not failure." It generally does not affect normal printer, but print out the result was not satisfactory and so on. Here are some print quality problems and solutions.

Output sheet of black paper may fail because:

(1) If the laser is certainly good, it may charge electrode and the grid short circuit;

(2) scanning drive circuit logic error;

(3) Toner Cartridge Component discharge bad;

(4) signal cable is not connected well.

Check the location and repair methods:

(1) first replace the cartridge components to see if the fault disappears, and if so, note the problem cartridge components, on the replacement. The entire page appears the phenomenon of black, indicating laser is definitely good. Therefore, we can first replace a new toner cartridge re-print, if the failure to eliminate, cartridge components are sufficient to prove a problem, then check the photosensitive drum can be highly charged, magnetic roller bias electrode and the photosensitive drum is good contact electrode consumption if what point connection is bad, should find and fix.

(2) and then check the charging wire and mesh electrodes are short-circuit or poor contact, and if so, should replace the repair or cleaning. We know that cartridge components for most of the structure varies with different models, but its working principle is the same. The use of wire electrodes charged toner cartridges, if electrode wire insulation blocks char, rather than, and can be measured multimeter resistance profile between electrode wire and the grid to see whether short-circuit, short or if the resistance is small, clean or replace the insulation seat. In addition, the electrode wire can also cause pollution or displacement of this fault, it is necessary to clean or correct electrode wire.

(3) if the above checks are good, then the fault probably is the laser scanning frequency component drive circuit or logic circuit, it should check the scan logic circuit is damaged, replace the scanning component.

(4) sometimes as a printer with multiple computers linked to the signal line often swap (we are opposed to the regular plug with a signal line approach to joint multiple computers, because it will be very easy signal line pin and socket causing damage), while the signal cable is damaged or plug is not strong, so that some signals can not pass, then it will cause the output black proofs of failure, it can first check in the check is good and the signal cable is inserted Well, in order to avoid other unnecessary maintenance.

by: gaga

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