How to Identify and Fix Common Problems ?
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An image drum is a critical component of a laser printer that transfers toner and image or text to paper. It`s also known as the image unit, drum unit, or photoreceptor drum, among other things.
Separate drum units last quite a bit longer than a toner cartridge and typically should be replaced after the use of 3-4 toners. Your printer should inform you when it`s time to replace the drum, but you can usually tell your drum is on it`s last legs if you start to see black spots or lines across the page.
You`ll know the drum is dirty if you notice that the print quality has become blurry and features blank spots or oddly-colored spots despite having full toner cartridges. Horizontal lines across the printout when the paper passes over a dirty area are another sign that it`s time for some maintenance.
The Drum LED flashes if the drum unit is near the end of its life. Use the drum unit until you have a print quality problem, then replace the drum unit with a new one. The Drum LED continues to flash if the drum counter was not reset when you installed a new drum unit.
Laser printers have a drum. A primary charge roller (or in some cases a corona wire) applies between -500 and -1,000 VDC to the imaging drum. This charge neutralizes the photosensitive surface of the drum and prepares it to receive an image.
Toner is the powder ink that latches on to the paper to create text and images. It is stored in the toner cartridge. An image drum is the unit that copies the text and images from the computer and then transfers them to the paper, along with the toner.
There are many factors that determine the actual drum life, such as the temperature, humidity, type of paper, type of toner used, number of pages per print job and so on. Under ideal conditions, the average drum life is estimated at approximately 12,000 pages.
This way, every time you replace the toner cartridge, you are replacing the image drum. Brother toner cartridges however do not and so you`ll need to replace the drum unit separately. The duration that the drum lasts really depends on the printer. Some last 10,000 pages while other last 25,000.
The reason may be quite simple – your cartridge is dry or clogged. Still, adding fresh ink may not resolve the situation. Try to wipe the cartridge with a lint-free cloth dampened with isopropyl alcohol. Please avoid touching the metal parts of these cartridges and the chip not to damage their electrical contacts.
Reasons why your HP printer has ink but won`t print
This may seem obvious, but it sometimes happens: first make sure your paper tray has paper in it. Misalignment, clogged printheads, faulty data communication or insufficient ink levels can also be sources of the problem.
If your machine continues to display “Replace Drum” after installing a new drum, the drum counter may not have reset properly. Whenever you replace the drum unit, the drum counter needs to be reset.
For cleaning, HP recommends using HP Equipment Cleaning Wipes, but you can use an HP-approved lint-free wipe and deionized or distilled water. Note: If dark spots appear on back side of prints, clean drum screen. Note: If minilab prints more than 2000 prints each day, clean drum screen up to twice daily.
You might need to replace the imaging drum for the following reasons: An `Imaging Drum Low` or an `Imaging Drum Very Low` message displays on the printer control panel. The actual imaging drum life remaining might vary. Repeated defects appear on printouts at the following intervals: 26 mm (1 in)
The most obvious is most common on laser color printers and can be detected by a flashing message on the printer display screen. Other signs of a bad printer drum include printing blank pages, printing gray pages and strange sounds coming from the printer as it prints.
The yield of a drum unit is approx. 15,000 pages (1 page/job). There are many factors that determine the actual drum life, such as the temperature, humidity, type of paper, type of toner used and so on. Under ideal conditions, the average drum life is estimated at approximately 15,000 pages.
An image drum is the image carrier or imaging device used in some non-impact methods of printing. The image being printed is created on the surface of the image drum, which then transfers toner onto the substrate in the correct position to form the final printed image.
When the laser beam makes contact with the drum, that precise spot has its positive charge removed, making it negatively charged. This attracts positively charged toner, a fine black or coloured powder. By passing the laser over the drum again and again, a negatively charged image begins to form.
An imaging drum is an essential part in the operation of your modern laser printer. Along with the toner and roller, the imaging drum helps finalize the ink-to-paper process, receiving the image or text and then transferring it to paper.
Imaging drums, which are part of the toner cartridge (Disposable drum – Durability of up to 5.000 pages) Replaceable imaging drums (Semi-permanent drum – Durability around 20.000 and 25.000 pages) Permanent imaging drums (Permanent-drum – Durability of up to 500.000 pages)
Generally speaking, a toner cartridge contains a dust-like powder that fuses onto a page to create your prints. The drum is combined in the same cartridge as the toner. Where supplied separately, the toner cartridge is basically a container for the toner and a roller for supplying the toner to the image drum.
But the replacement of a drum unit is vital to laser printers` health. A degraded drum unit can cause streaks, smudges, and blank spots on your printed page even if you just inserted a new printer toner. While a broken drum unit won`t break your printer, it will just fail to stop printing at a certain point.
The replacement toner is already used in another printer
A used toner cartridge will have the reset lever. But because it has been used in another printer already, its reset lever will not be in the right position to activate the printer to reset the toner level. Please use a new, unused replacement toner cartridge.
HP CE314A 126A Imaging Drum Unit – Rs. 5950.
Do Drum Units Expire? Fortunately, just like laser toners, drum units don`t expire, so you can safely keep extra units on hand if printing is a core part of your business or routine. The only consumable that expires is ink, which is printed on the cartridge itself.