Compatible with M577c, M577z, M552dn, M553dn, M553dh, M553n, M553x, M577f, M577cm, M553dnm, M553xm and M577dnm.

Alternative part numbers are B5L35-67902 and B5L35-67901.

The M577 fuser unit B5L35A is a replacement part designed for use with the Color MFP M577 series of printers. The fuser unit is an essential component of the printer that is responsible for fusing toner to paper by applying heat and pressure to the paper as it passes through the unit. The fuser unit is a critical component in the printing process, and if it malfunctions, the printer may not be able to produce high-quality prints.

The B5L35A fuser unit has a yield of approximately 150,000 pages, which means it can print up to 150,000 pages before needing to be replaced. However, the actual yield may vary depending on factors such as print density, paper type, and environmental conditions.

Replacing the fuser unit is an important part of printer maintenance, and it is recommended after a certain number of pages have been printed. The process of replacing the fuser unit is relatively straightforward and can be done by following the instructions in the printer’s user manual. It is important to note that the fuser assembly can get very hot during operation, so it is essential to allow it to cool down before attempting to replace it.

In addition to the fuser unit, the M577 printer requires other components for regular maintenance and to ensure optimal performance. These include pickup and feed rollers, transfer rollers, and other maintenance kits. Regular maintenance and replacement of these components can help to ensure that the printer continues to produce high-quality prints and operates smoothly.

In summary, the M577 fuser unit B5L35A is an essential component in the Color MFP M577 series of printers that is responsible for fusing toner to paper by applying heat and pressure. The fuser unit has a yield of approximately 150,000 pages and is an important part of printer maintenance. Replacing the fuser unit is a relatively straightforward process that can be done by following the instructions in the printer’s user manual. Regular maintenance and replacement of other components can help to ensure that the printer continues to operate smoothly and produce high-quality prints.