1, the paper is placed correctly (only applicable to copying or faxing);

Make sure to put the paper in ADF (Automatic Document Feeder) and adjust the paper guide block to fit the paper width, or put it on the scanner glass without being skewed.

2. Put the paper into the paper box correctly;

Make sure that the paper is loaded in the paper tray correctly, and adjust the paper guide according to the paper width used.

3. Check the paper specifications;

Ensure that the paper used meets the required paper specifications.

4. Check the paper settings in the printer driver;

Make sure that the settings consistent with the paper size used are selected in the printer driver.

Extended data:

Internal cleaning

Because the internal parts of the printer are relatively precise, even ordinary wiping or lubricating oil may have an immeasurable impact on the printing quality, so the internal cleaning must be careful. According to my experience, the parts that can be cleaned are listed below for your reference.

Toner protection device

The ink cartridge of the printer will have some pads to absorb the excess toner in the roller system that transports the paper. Users can take it out of the machine and clean it manually. Usually, a new ink cartridge will also include a new gasket.

Paper feed roller

They are the conveying parts of the printer, which drag the paper from the paper slot to the inside of the printer. But in this process, the oil and dust on the paper will also be deposited on the roller. If it is not cleaned for a long time, it will lead to paper jam and paper feeding error, which is also the most common fault of the printer. Here, we can use cotton balls or wet cloth soaked in alcohol to clean these deposits. In addition, some office equipment specialty stores also have special drum cleaners.

Surface steel wire

The deposition of dust will affect the efficiency of static electricity (especially for some old laser printers).

ventilation opening

Similar to the inside of the computer, many laser printers also have internal fans, which will be blocked by dust and dirt all the year round. We must ensure that the vents and fan blades are cleaned regularly to keep the air circulating inside the printer.

References:

Baidu encyclopedia-printer cleaning