Linhas na impressão Frontier 550

[Delmar_Brasil]

The lines in the prints of some photos aren't perfectly horizontal; they're at an angle of about 80 degrees. Any suggestions?

[yustas]

These lines can be caused by many reasons:

1. Strong electromagnetic field near the laboratory.

2. Faulty LDD23 circuit board.

3. Faulty laser module.

4. Lack of grounding.

5. Faulty paper feed mechanism (worn belts or gears).

I would recommend that you call a local service engineer, pay them, and get a good result on the spot.

[Minilab service]

Does this noise have color ( Green, Magenta, Blue, Yellow ) ? If has - try to make optimal temperature adjustment ( for Green, or Blue laser head ) .

Look if you have this noise on tests. If tests do not have noise then can be that noise is on image processing section.

[Delmar_Brasil]

On 10/02/2026 at 08:04, Minilab service said:

Esse ruído tem cor (verde, magenta, azul, amarelo)? Se tiver, tente ajustar a temperatura para um nível ideal (para o laser verde ou azul).

Verifique se você tem esse ruído nos testes. Se os testes não apresentarem ruído, é possível que o ruído esteja na seção de processamento de imagem.

Is the temperature adjustment automatic?

Is there a possibility of manual adjustment?

I notice that the green laser is very strong.

[Minilab service]

Just now saw that you have LP5500. On this model optimal temperature can adjust only for Green. Can do it on 0522 menu . Temperature adjusted automatically. Software find the range where head works stable and set middle temperature. It is possible to adjust temperature and other laser  head settings manually, but they are on different menu. These adjustments only for expierenced engineers. To have posibility to change these settings need the highest level service password.