Brother HL-820 User Manual (English)

Questions and Answers:

H
hensondonnaAug 22, 2025
Why is my Brother HL-820 Printer printing too dark?
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  Jessica CervantesAug 23, 2025
  There are several reasons why your Brother Printer might be printing too dark. It could be due to: * A soiled corona wire, in which case you should clean it using the wire cleaner. * Corona contact failure, which requires cleaning both electrodes. * A drum unit failure, which requires replacing the drum unit with a new one. * Failure of the high-voltage power supply PCB, panel sensor PCB, or main PCB, all of which would need replacing.
D
derek75Aug 25, 2025
What causes my Brother Printer to print all black?
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  Jessica Lewis DVMAug 25, 2025
  If your Brother Printer is printing all black, it could be due to: * Corona failure, which may require replacing the drum unit or cleaning the terminals in the printer and on the drum. * A harness connection issue between the scanner unit and the panel sensor PCB, which would need checking. * Failure of the high-voltage power supply PCB, main PCB, or panel sensor PCB, all requiring replacement.
J
Jason DelgadoAug 25, 2025
How to fix a Brother HL-820 Printer that is printing too faintly?
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  John JonesAug 26, 2025
  If your Brother Printer is printing too faintly, consider the following: * Ensure the printer is on a flat surface. * Remove and gently shake the drum unit horizontally. * Clean the scanner window with a dry tissue. * If problems persist, the scanner unit may need replacement.
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Anita McguireAug 27, 2025
Why is my Brother Printer printing too light?
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  Allison FloresAug 27, 2025
  If your Brother Printer is printing too lightly, it could be due to several reasons: * Toner sensing failure on the printer side, which may require cleaning the toner sensor and checking its connection. * Toner sensing failure on the toner cartridge side, which suggests replacing the toner cartridge. * Drum connection failure, which needs cleaning the contact electrodes in both the printer body and on the drum unit. * High-voltage power supply PCB failure, panel sensor PCB or main PCB failure, or scanner unit failure, all requiring replacement of the respective parts.
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andrew60Aug 27, 2025
What to do if the toner lamp is lit on my Brother Printer after installing a new toner cartridge?
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  erickiddAug 27, 2025
  If the toner lamp is lit after installing a toner cartridge in your Brother Printer, replace the cartridge with a new one.
I
Isaac GrayAug 29, 2025
What to do if my Brother HL-820 has poor fixing?
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  dillonfloresAug 29, 2025
  If your Brother Printer has poor fixing, ensure you are using paper of the recommended weight and thickness. You may also need to clean the toner sensor or correctly fit the thermistor. In some cases, the low-voltage power supply PCB may need to be replaced.
K
Katherine MelendezAug 30, 2025
What to do if there are blank spots on printouts from my Brother HL-820 Printer?
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  steven32Aug 30, 2025
  If you notice blank spots on printouts from your Brother Printer, remove the drum unit and gently rock it to redistribute the toner evenly.
W
wilsonchristinaAug 31, 2025
How to remove white spots from Brother HL-820 prints?
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  Andrea FlemingAug 31, 2025
  To address white spots on prints from your Brother Printer: * Shake the drum unit horizontally and replace the toner cartridge with a new one. * Try changing the paper. * Ensure the printer is used within the specified print environment.
J
James LawrenceSep 1, 2025
How do I fix black, blurred vertical streaks on my Brother Printer?
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  Daniel ColemanSep 1, 2025
  To fix black and blurred vertical streaks on your Brother Printer: * Clean the corona wire with the wire cleaner. * Clean any toner off the paper feed system. * Replace the drum unit if there's a scratch on the drum or due to cleaning failure. * Replace the fixing unit if there's a scratch on the heat roller.
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Emily HerreraSep 3, 2025
How to resolve black spots on printouts from my Brother HL-820 Printer?
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  Megan RobertsonSep 3, 2025
  To resolve black spots on printouts from your Brother Printer: * If toner remains stuck on the drum unit, gently wipe it off with a cotton swab. * Check and clean the heat roller with a cloth dampened with alcohol; consider replacing the fixing unit. * Replace the high-voltage power supply PCB if necessary.

Brother HL-820 Specifications

General

Brand	Brother
Model	HL-820
Category	Printer
Language	English

Brother HL-820 User Manual

Table of Contents

Questions and Answers:

Brother HL-820 Specifications