Laser selenium drum drum unit common errors is our common, 19 today by drums manufacturers drums drums expert analysis in terms of the following only for compact laser selenium drum drum unit common mistakes, some problems related to the machine, don't discuss error analysis here.
1, the seal to pull out: are generally poor assembly, seal fold screens or clamp the carbon powder.
2, leakage powder: besides poor seal seal leakage before printing powder, powder compact in multiple parts or parts will cause leakage powder in use process, magnetic roller defect of carpets, the powder knife aging, magnetic roller blade deformation and paste not firm seal, seal defect or aging sponge, cleaning doctor blade deformation and paste not firm cause leakage powder.
3, print out the whole white or light and fuzzy.
A, seal before pull out B, compact seal did not shake, the powder is not smooth.
C, the laser is not according to the drum, powder compact mask does not open, a drum cover not open.
4, print all black is usually the problem of electricity: A, packing charge roller/conductive sheet steel or bad assembly.
B, the charging roller conductive bracket deformation or poor contact.
5, vertical black line: refers to the perpendicular line from top to the next why don't you need, may be a coarse yarn or fine lines, continuous or intermittent.
Thin light color is generally produced or drum cleaning blade gap on a ring scratches.
Coarse and intermittent black line and edge is not clear, is often caused sealing blade crease or a powder.
6, the black version of the vertical lines on the white line, the depth of the photosensitive drum wear line, magnetic roller has caused the impurities or magnetic roller coating wear line.
A local exposure, drum coating;
B, drum drive gear defect, loose or tooth defect;
C, magnetic roller coating defects;
D, core breaking or location error;
E, magnetic roll sheath serious wear or deformation;
F, magnetic roller conductive spring poor contact or beating.
7, horizontal black line: is the problem of electricity commonly, periodic horizontal black line often is charging roller coating defect and a sense of drum coating on pinhole level thin black line is often caused by powder warehouse or waste powder warehouse combination does not reach the designated position.
8, periodic blur: often a drum or a charging roller coating pollution caused, watermark, mimeograph, finger print often caused the defect.
9, the grape bunches, is like a coin overlap appeared on the printing of a defect, no rules, and difficult to repeat, is the result of the drum bad earth.
Around 10, scattering background: refers to the text or lines do not need to get a small black dot, caused by magnetic roller coating or toner.
Photosensitive drum overheating (
Also can cause the defect.
11, grain background (
The tiger spot)
: with black wavy appeared on the white board or take the form of white on the black version or half color plate is magnetic roller coating defects or due to the low density for a long time to print, magnetic powder on the magnetic roller set of causes.
12, hollow words: refers to the stroke on the text or image lacks, reason: A, carbon powder problem in itself.
B, drum powder with bad.
C, magnetic roller coating problem.
D, print medium surface, good light.
E, the paper use the reverse side.
13, irregular vertical black spots: A, caused by sealing blade deformation waste powder scattered.
B, due to the carbon powder accumulation on the magnetic roller, too much powder leakage caused.
14, color light: is associated with A number of factors: A, carbon powder itself problem B, drum, with magnetic roller problems.
Knife aging D C, the powder, magnetic roller wear E, drum to life F, environment humidity, high or medium moisture absorption.
15, bottom ash, bottom ash refers to the blank area of the printing of mist toner, are also associated with A number of factors: A, the charging roller dirty fatigue problem C B, carbon powder, toner cartridge
, the life of D, environment temperature and drying adverse F E, print medium, the charging roller wear 16 G, scraper, fixing rickety: refers to the text or image move out of the printing.
The reasons are: A, fixing temperature of the carbon powder softening point higher than machine B, too thick or too light on the surface of printing media.
17, the electric contact: all the cartridges in the photosensitive drum, magnetic roller, charge roller are connected with machine, electric contact to pay attention to the electrical contact in the assembly and connected.
18, positioning problem: each component has its own fixed position, by spring or screw positioning, and two parts by powder storehouse and waste powder storehouse plastic pins or connecting shaft core positioning.
Assembly of parts must be installed, in this way can compact normal machine.
19, try: compact, when the machine is used within the drum is rotating, charging roller, magnetic roller, in after assembling these parts, to promote its driver check whether can turn flexibly.
When after the cartridges pack, to once again by the drum rotation direction normal driving drum gear, can ensure the drum after flexible rotation cartridges, otherwise it will damage the machine.
Above is a common 19 error analysis, laser selenium drum drum phenomenon often occurs in our office life, hope to have certain help, of course, also can seek advice drums manufacturers laser selenium toner cartridge drum website WWW.
Com, will answer them one by one.
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