First, the type of toner cartridge
If you want to add powder, you must first understand the structure of your toner cartridge. Generally, the toner cartridge is composed of a photosensitive drum, a toner bin, a waste toner collection bin, a waste toner scraper, and various covers, among which the toner and scraper are the most easily lost. According to the different designs of the manufacturers, the toner cartridges can be divided into: integrated toner cartridges, two-body toner cartridges, and toner-separated toner cartridges. No matter what kind of toner cartridge, there is the possibility to replace the powder.
Second, add powder correctly
Just after changing the powder, the printing effect may not be good, and the following will appear Fault: heavy foundation powder (leaving light toner on the paper), black strip marks, different shades of words on the paper (a few lines are dark, some lines are light), the paper is very dirty . The main reason for these failures is that the selection of toner is incorrect, and the operation is incorrect. Let’s talk about how to add powder correctly from these two aspects.
1. To choose the same type, high-quality toner
The toner of the printer cannot be used in the copier The toner replacement, which we all know. But some people think that as long as the toner of the laser printer can be used, it is not. The formula of toner for each type of printer is different, the machines of different manufacturers are different, and different models of machines from the same manufacturer cannot be mixed with each other, otherwise the printing quality will be affected, and the toner cartridge will be damaged, and the machine will not work. Some people are often “one fan to conquer the world”, which is actually very wrong. There are basically two components of the existing printer toner:
A. Single-group toner, that is, the component only includes one raw material – toner.
B. Double-group powder, that is, the ingredients contain two kinds – toner + carrier.
For example, EPSON uses non-magnetic toners, while HP series are toners containing ferric oxide, and the two are not interchangeable at all. Now the market for substitute powder is very complicated. Many of them claim that their products are of excellent quality, and they are all original powder imported from the United States, but the source is dubious and the quality is not reliable. Poor quality of powder will directly result in poor printing effect, heavy foundation powder and different shades. So pay special attention to the quality of the powder.
2. Correct operation method
A. Clean toner cartridges well
B. Replace necessary accessories
C. Professional installation and debugging
Three, the comparison table of common defects in the process of adding powder to the toner cartridge
1. Problem: bottom ash
Reason: low humidity and high temperature; PCR (charging roller) defect; magnetic roller sheath and coating defects; PCR or corona contact point defects; OPC (photosensitive drum) defects; bad toner; bad high-voltage power supply.
Solution: best RH=50-60%; replace defective parts; replace toner; check high voltage power supply.
2, Problem: Ghosting
Reason: Cleaning Blade, Photosensitive Drum, charging roller, corona wire, de-energizing lamp, developing roller defect; upper fixing roller, high voltage power supply defect; bad toner.
Workaround: Replace or clean defective parts; check high voltage power supply; replace toner.
3, Problem: Outline
Cause: Wear on the upper fuser roller ; Toner problems; Improper media; Paper surface is too slippery or too hard; Paper is printed backwards.
Replace upper fuser roller; replace media or toner; try paper reverse.
4, Problem: Missing Vertical
Reason: Laser blocked Or the magnetic roller sleeve has foreign objects; the mirror is dirty or the transfer assembly is defective or the high-voltage power supply is improper; the magnetic roller coating or the powder knife is defective, and the bias is improper.
SOLUTION: Check the magnet roller sleeve or anything blocking the laser light on the drum; clean the mirrors; check the high voltage power supply; replace the defective transfer roller, magnet roller or outlet Powder knife.
5, Problem: Missing Level
Reason: Drum Coating , Defective drive gear; magnetic roller sleeve, sheath, coating, bias contact point defect; transfer roller defect; improper high-voltage power supply.
Solution: replace toner cartridge; check and replace defective magnetic roller sleeve, jacket, coating; clean bias contact point; replace transfer roller; check high voltage power supply.
6, Problem: Light Printing
Cause: Paper damp; Dirty or aging printing roller; aging edge of powder knives; wear of magnetic roller or charging roller; fatigue of OPC drum; bad toner.
Solution: Pack the paper well; replace or clean the transfer roller; replace worn and aged parts; replace high-quality toner.
7, Problem: Dusting
Reason: Worn recovery blade , wrinkling; foreign matter stuck to the magnetic roller sleeve; defective powder knife; improper spacing; improper transfer roller or high-voltage power supply.
Solution: replace the recovery blade; clean the magnetic roller sleeve; replace the powder knife; check the gap; check the high voltage power supply or transfer assembly.
8, Problem: Vertical streaks
Cause: Corona wire or Dirty grid; cleaning blade or drum quality defect; recovery blade defect; toner accumulation on the magnetic roller sleeve; upper fixing roller defect; high voltage power supply, transfer corona defect.
Solution: clean the corona wire and grid; replace the cleaning blade and drum; replace the recovery blade; clean the magnetic roller sleeve; .
9, Problem: Horizontal Stripes and Bands
Reason: Drums Pinhole defects; damaged drum coating; magnetic roller sleeve coating defects; powder knife defects; drum grounding joint defects; high voltage power supply or scanning assembly defects.
Solutions: Replace drum; recoat, replace magnetic roller sleeve; replace powder knife; check and clean drum ground connection; clean high voltage power contacts; check scan assembly.
10, Problem: Blank
Reason: Scanner, Mirror And the shield, the transfer assembly defect; or the drum gear, the magnetic roller sleeve electrical contact point, the powder knife, the drum shield problem.
Solution: Check scanner, mirror guard or transfer unit; check drum gears; clean magnetic roller sleeve electrical contacts; replace powder ejector.
11, Question: Blackboard
Reason: Corona Wire Broken or Defective charging roller; defective scanner or high voltage power supply.
Workaround: Replace corona wire or charging roller; check scanner or high voltage power supply.
