According to the print sample to determine the printer fault method

1, the amount of toner is insufficient. You can take the cartridge out and shake it a few times, then put it in. You should be able to print something. The thorough solution is to add powder or replace the cartridge.

2, toner does not match, the toner has a high melting point, for example, if the hp2612a toner installed on the hp436a, it will appear light color printing samples, and some of the waste powder remains on the fixing, this is because In recent years, the new model of the new hp machine has lowered the temperature of the heating element of the machine. Because of the relatively high melting point of the previous toners, the use of these machines will cause the heating element to be not hot enough, so that only a portion of the carbon will be melted and fixed on the paper, and some will remain on the paper. On the fixing film, the printed proofs naturally fade, and the fixing film can easily be damaged after a certain period of time because of the amount of waste toner remaining. Matching toner is recommended.

3, opc aging, lack of powder. Replace opc.

4, magnetic stick aging, lack of powder. Replace the magnetic stick

5, out of powder knife installation is not good. It will cause insufficient powder. Adjust the position of the powder knife.

6, toner black is not enough, some manufacturers of carbon black value is low, the print out of the black is not enough. Replace other dark toner.

7. The laser is aging or the prism is not clean. Increase the beam of the laser or replace the laser and clean the prism.

Second, bottomed gray

1. The charging stick is damaged or not clean, so that the opc is insufficiently charged and discharged. Replace the charging stick, or clean the charging stick and the charging contact point. Do not allow the contact point to have waste powder.

2, toner moisture or poor quality, replacement of good quality toner.

3, clean scraper aging or deformation, replace the cleaning blade.

Third, print paper black

1, the machine's high pressure board problems.

2, charging stick can not be discharged. Replace the charging stick and clean the charging contacts.

Fourth, print white paper

1, toner cartridge no powder. Add toner or replace the toner cartridge.

2. The mechanical shutter of the laser is not turned on. Check the part that opens the laser shutter.

3, the laser is bad. Replace the laser.

4, the new cartridge seal is not pulled. Pull the seal completely open.

Fifth, ghosting, ghosting

1, opc quality problems, replace opc

2. Poor discharge of the charging stick. Clean the charging contacts.

Six, leakage powder

1, the toner particles are not uniform, the small particles fly out. Replace brand toner.

2, out of powder knife deformation, aging. Replace the powder knife.

3, waste toner warehouse full.