This Brother HL-5250DN Service Manual contains basic information required for after-sales service of the laser printer (hereinafter referred to as "this machine" or "the printer"). This information is vital to the service technician to maintain the high printing quality and performance of the printer. This service manual covers the Brother HL-5250DN printers. This manual consists of the following chapters: Chapter 1: General, features, specifications, etc. Chapter 2: Theory of operation, basic operation of the mechanical system, the electrical system and the electrical circuits. Chapter 3: Periodic maintenance, periodical replacement parts, consumable parts, etc. Chapter 4: Troubleshooting, reference values and adjustments, troubleshooting image defects, troubleshooting malfunctions, etc. Chapter 5: Disassembly and reassembly, procedures for disassembling and re-assembling the mechanical system. Chapter 6: Adjustments and updating of setting, required after parts replacement. Chapter 7: Service support software, test print mode and Service menu mode, etc. Appendix: Diagrams etc.
Information in this Brother HL-5250DN Service Manual is subject to change due to improvement or redesign of the product. All relevant information in such cases will be supplied in service information bulletins (Technical Information). A thorough understanding of this printer, based on information in this service manual and service information bulletins, is required for maintaining its print quality performance and for improving the practical ability to find the cause of problems. This printer is certified as a Class 1 laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation. Since radiation emitted inside the printer is completely confined within protective housings and external covers, the laser beam cannot escape from the machine during any phase of user operation.
When the machine during servicing is operated with the cover open, the regulations of VBG 93 and the performance instructions for VBG 93 are valid. In case of any trouble with the laser unit, replace the laser unit itself. To prevent direct exposure to the laser beam, do not try to open the enclosure of the laser unit. When servicing the optical system of the printer, be careful not to place a screwdriver or other reflective object in the path of the laser beam. Be sure to take off any personal accessories such as watches and rings before working on the printer. A reflected beam, though invisible, can permanently damage the eyes. Since the beam is invisible, the following caution label is attached on the laser unit. The dedicated printer driver for Microsoft Windows 95/98/Me, Windows NT 4.0 and Windows 2000/XP Home Edition/XP Professional/XP Professional x64 Edition are available on the CD-ROM supplied with your printer. You can easily install them into your Windows system using our installer program. The driver supports our unique compression mode to enhance printing speed in Windows applications and allows you to choose various printer settings including toner save mode, custom paper size, sleep mode, gray scale adjustment, resolution, water mark and many layout functions. You can easily setup these print options through the Printer Setup Menu.
The printer driver can monitor the status of your printer using bi-directional parallel communications. IEEE-1284 bi-directional parallel printer cable is recommended. The printer status monitor program can show the current status of your printer. The animated dialog box appears on your computer screen to show the current printing process when printing. If an error occurs, a dialog box will appear to let you know what to correct. If you have turned on the Interactive Help (Windows only) you can get visual guidance on your PC screen on the actions in the event of certain printer errors. The default setting is OFF. The Quick Print Setup is a convenient utility to allow you to make changes to frequently used driver settings easily without having to open the printer properties selection box every time. It is launched automatically when this printer driver is selected. You can change the settings by clicking on the icon with the right mouse button. The default setting is OFF. The printer provides its own data compression technology in its printer hardware and the supplied printer driver software, which can automatically compress graphic data and font data efficiently into the printer’s memory. You can avoid memory errors and print most full pages 1200 dpi graphic and text data, including large fonts, with the standard printer memory.
Download Brother HL-5250DN Service Manual here
Information in this Brother HL-5250DN Service Manual is subject to change due to improvement or redesign of the product. All relevant information in such cases will be supplied in service information bulletins (Technical Information). A thorough understanding of this printer, based on information in this service manual and service information bulletins, is required for maintaining its print quality performance and for improving the practical ability to find the cause of problems. This printer is certified as a Class 1 laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation. Since radiation emitted inside the printer is completely confined within protective housings and external covers, the laser beam cannot escape from the machine during any phase of user operation.
When the machine during servicing is operated with the cover open, the regulations of VBG 93 and the performance instructions for VBG 93 are valid. In case of any trouble with the laser unit, replace the laser unit itself. To prevent direct exposure to the laser beam, do not try to open the enclosure of the laser unit. When servicing the optical system of the printer, be careful not to place a screwdriver or other reflective object in the path of the laser beam. Be sure to take off any personal accessories such as watches and rings before working on the printer. A reflected beam, though invisible, can permanently damage the eyes. Since the beam is invisible, the following caution label is attached on the laser unit. The dedicated printer driver for Microsoft Windows 95/98/Me, Windows NT 4.0 and Windows 2000/XP Home Edition/XP Professional/XP Professional x64 Edition are available on the CD-ROM supplied with your printer. You can easily install them into your Windows system using our installer program. The driver supports our unique compression mode to enhance printing speed in Windows applications and allows you to choose various printer settings including toner save mode, custom paper size, sleep mode, gray scale adjustment, resolution, water mark and many layout functions. You can easily setup these print options through the Printer Setup Menu.
The printer driver can monitor the status of your printer using bi-directional parallel communications. IEEE-1284 bi-directional parallel printer cable is recommended. The printer status monitor program can show the current status of your printer. The animated dialog box appears on your computer screen to show the current printing process when printing. If an error occurs, a dialog box will appear to let you know what to correct. If you have turned on the Interactive Help (Windows only) you can get visual guidance on your PC screen on the actions in the event of certain printer errors. The default setting is OFF. The Quick Print Setup is a convenient utility to allow you to make changes to frequently used driver settings easily without having to open the printer properties selection box every time. It is launched automatically when this printer driver is selected. You can change the settings by clicking on the icon with the right mouse button. The default setting is OFF. The printer provides its own data compression technology in its printer hardware and the supplied printer driver software, which can automatically compress graphic data and font data efficiently into the printer’s memory. You can avoid memory errors and print most full pages 1200 dpi graphic and text data, including large fonts, with the standard printer memory.
Download Brother HL-5250DN Service Manual here
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