toner cartridge

What to do if printer is displayed as “offline” and cannot print properly?

There are many reasons why the printer is “offline”. You can do the following first.:Turn off the print power then restart computer. this operation can put the computer in a normal use environment. After restart computer and turn on the printer power, connect the printer USB cable to the computer and send the print task again. it will print normally. if the printer is still “offline”, follow the steps in the solution below to help you solve the problem.

First step: Check the printer indicator light
Make sure the printer power is turn on and the printer is ready for standby.
Please refer to the treatment method of printer indicator light flashing:
HP LaserJet P1007、P1008 Laser printer – Indicator light flashing
HP LaserJet P1505、P1505n Laser printer – Indicator light flashing
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Step two: Clear print task
Because the printing background service failed to handle the tasks that could not be printed, it would stay in the list of printing tasks, resulting in the blocked print queue and unable to print normally, the printer status is displayed as “offline”, at which point the blocked printing task needs to be cleared
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Step three: Check the printer status
Connect the printer USB cable to the computer and turn on the computer power
Click”Start”→ “Printer and Fax”. in the “Printer and Fax”window and find printer icon. In the “Printer and Fax”window, Right click on the printer icon you are using and select the “Use online printer” menu item


Any questions about printer and compatible toner cartridges, pls feel free to contact:



toner cartridge

Tips for Maintenance of Inkjet Printer Related Products

Summary: Due to the way of working, inkjet printer placed place must be horizontal, inclined to work not only affect the print effect, slow down nozzle working speed, and can damage the internal mechanical structure. do not put the printer on the ground, especially carpeted ground, it is easy to have foreign matter or dust flying into the machine


  1. Place the printer on a horizontal desktop
    Due to the way of working, inkjet printer placed place must be horizontal, inclined to work not only affect the print effect, slow down nozzle working speed, and can damage the internal mechanical structure. do not put the printer on the ground, especially carpeted ground, it is easy to have foreign matter or dust flying into the machine.
  2. Take good measures to prevent dust
    When the printer is working, don’t open the front panel. there is nothing interesting when printing, just the nozzle is moving around, also to prevent the dust is blown into the machine.After printing and cooling for half an hour, cover the dust shield immediately and don’t keep the shield open in the room.
  3.  Turn off the machine before unplugging it
    Before using the printer or moving it, do a permanent power-off. turn off the printer power first (if any), reset the nozzle and cover the ink tank, and then unplug the power cord and signal cable. Prevents ink from evaporating and does not easily damage the nozzle when moving
  4. Install the toner cartridge carefullyThe support mechanism of toner cartridge only can bear little strength. be careful when installing the new toner cartridge. according to the normal design, the toner cartridge can be installed with proper strength, don’t push the support hard.
  5. Timely clean
    The outside of the printer is the same as the inside. It should be cleaned regularly. don’t wait until it is full of thick dust and remedied it after with problem. The outside of the printer can be wiped with a wet soft cloth. The cleaning liquid must be a neutral substance such as water. Use dry cloth to wipe the interior as much as possible, and do not touch internal electronic components, machinery, etc.
  6. Printer internal structure
    The cleaning of the nozzle should not be done manually. The best way is to use a software-controlled printhead cleaning program. Especially after adding ink, be sure to clean the print head to prevent the two inks from mixing and solidifying. in addition, if the quality of printing is decreased, such as strip stripes and color fading, the nozzle should also be cleaned.
    If the software cleaning method fails, it proves that the blockage is more serious. which is usually caused by the printer being unused for a long time or the interruption of electricity during use, and the nozzle is not reset. with a syringe against the nozzle, constantly pulling the pressure device, the high-speed air stream is used to clean the nozzle ,and sucking out the remaining ink, which is an ink-saving cleaning method.
    If the first manual cleaning method does not work, it is now ready to open the printer. Turn off the power first, unplug it, and disconnect the power completely. Disassemble the moving shaft and rotate the belt, then carefully pick up the print head and rinse it with distilled water. A syringe and soft hose are then used to form an injection system that is inserted into the ink inlet for cleaning. Be extremely careful in both steps. Never let the water get on the board. If the board get wetted, should be blow drying with an electric blower immediately. Then reinstall it in the printer and execute the software cleaning program again to let the ink wash away the distilled water inside the nozzle.
  7. Avoid stress on the printer
    People sometimes place other objects on the printer, which may break the printer’s casing and some small things will fall into the printer. Of course, drinks and teacups are banned.
  8. Be sure to use the ink when it is loaded
    Because color toner cartridges are expensive, users are reluctant to use them, but they can also cause you a lot of trouble. Each time the nozzle sprays the ink, there is always the remaining ink left nearby, always using inkjet printer. The new ink in the cartridge will wash away the last remaining ink, otherwise they will slowly solidify, causing the nozzle to clog. Even if no ink was used, the machine will automatically clean the nozzles at regular intervals, which will result in greater waste.
    Regardless any kind of inks is out of ink, should change into a new cartridge as soon as possible. Some people think that black ink is not needed for color printing. In fact, the color ink is not pure black, and the printer will report an error and cannot print.
  9. Do not use multiple inks
    Because the ink chemical composition that each manufacturer is different, choose the same brand as far as possible and don’t change them frequently to avoid damage to the ink cartridges and print heads. the ink cartridge has a certain life span, and the number of ink refills is not unlimited. Usually, the safe method is to replace it within 10 times.
toner powder

A Few Points to Note When Adding Toner Powder

A few points to note when adding the toner powder:


  1. Toner Cartridge:First wipe with dry skim cotton,a few points should be attention when the toner cartridge adding powder

Toner Cartridge:Wipe with dry skim cotton first. If carbon powder is adhered, it can be cleaned with isopropyl alcohol or absolute alcohol (in one direction).

  1. Primary Charge Roller: Wipe with a clean absorbent cotton (Don’t use solvents until you have to)
  2. Magnetic Roller: Wipe gently with a clean absorbent cotton (do not scratch the surface)
  3. Toner Bin: Blow clean with air (blow with dry compressed air or earballs)
  4. Etc: For general cleaning, be sure to clean several electrical contact points


When adding toner powder for the first time, please note that HP’s toner cartridge is coated with lubricating oil on the transmission part of the magnetic roller. Be careful not to dip oil on the coating surface of the magnetic roller. it will affect the print quality. Please note that the rubber sheet of the large scraper should not be too clean, otherwise it will not move when installing the photosensitive drum. If you apply a layer of powder to the surface of the drum and scraper before installing the drum, it will rotate smoothly.


If any questions, pls feel free to contact:


toner cartridges

What is the Difference Between Ink Cartridges And Toner Cartridges?

What is the difference between ink cartridges and toner cartridges? let Asseel discuss this issue with everyone today.

The first thing to say is the ink cartridge. The ink cartridge mainly refers to the component used in the inkjet printer to store the printing ink and finally complete the printing. The internal storage is ink, as the name suggests, is a liquid substance. From the point of view of the composition of the ink cartridges on the market, in general, it can be divided into: split type ink cartridges and integrated ink cartridges. it should be noted that the ink cartridge has a very important position for the entire inkjet printer, especially for some low-end printers, which have already reached the price of two ink cartridges and one printer. therefore, when purchasing a printer, you must consider the condition of the ink cartridge.

The last thing to talk about is the toner cartridge, also known as the photosensitive drum, which is generally composed of a basic substrate made of aluminum and a photosensitive material coated on the substrate. The toner cartridge not only determines the quality of the print, but also determines how much money the user has to spend in use. In laser printers, more than 70% of the imaging components are concentrated in the toner cartridge, and the quality of the print is actually determined largely by the toner cartridge. so the toner cartridge is the most critical part of the laser printer.

If any inquiry about toner cartridge and ink cartridge, pls feel free to contact:




toner cartridge

How the Toner Cartridge Works

At present, due to the excellent performance and efficient printing technology of laser printers, It is developing vigorously in today’s society, the development components (toner cartridges) that play an important role in laser printers are attracting attention and sales are amazing. According to the structural principle, the toner cartridge can be divided into drum and powder integrated (such as HP, Xerox, Samsung, etc.) and drum and powder separated (such as Lenovo, Epson, etc.).

Lasers in a laser printer modulate the computer’s output at high frequencies, replacing the data control system with a character matrix. The laser beam carrying the character information is uniformly scanned onto the photosensitive drum along the axis of the photosensitive drum through the optical system, thereby forming an electrostatic latent image corresponding to the input information, and the toner is adsorbed on the drum by the electric charge on the drum to fill the hidden image. When the drum is rotated, the visible image is transferred to the paper, and then the image is immersed in the fibers of the paper by heat and pressure, and finally solidified on the paper.


Photosensitive Drum: It is made of aluminum and covered with a layer of non-toxic organic light, also known as OPC drum, which can print about 20,000 sheets (A4 format, 5% coverage). the photosensitive drum should avoid the high temperature and high humidity and near fire, and the light environment. At the same time, the bad touch and scratch when cleaning the drum will cause permanent damage to the drum surface coating.

(Note: If the printing time is too long, it will also cause photosensitive drum fatigue, resulting in the printing color light problem )


Magnetic Roller: It is a metal sleeve with a permanent magnetic core, fixed in a powder bin, adsorbed the carbon powder when rotating, and applied the carbon powder to the latent image of the photosensitive drum by the action of electric field and magnetic field.

(Note: The surface coating of the magnetic roller will be worn and dirty, which will result in light printing color and stain)


Doctor Blade: It is composed of a metal frame and a polyurethane blade. It controls the amount of carbon powder on the surface of the magnetic roll evenly and makes the carbon powder friction and electrify.

(Note: The aging of the doctor blade will appear black wide lines that are not clear from the top to the bottom.)


Transfer Roller (printer module): The transfer roller is located on the other side of the printing paper, and since it is applied with a voltage opposite to that of the toner, the toner on the photosensitive drum is transferred to the paper.

(Note: Damage to the transfer roller can cause image positioning errors. If the printing environment is wet or the transfer roller is dirty, the transfer will be poor and the color will be light.)


Fuser Roller(printer module): Composed of hot and cold rollers, the lower pressure roll is made of rubber, and the upper fixing roll is a metal roll coated with a high temperature resistant material, which has an electric heating wire.

(Note:If the temperature and pressure do not meet the requirements, it will cause a hard copy of the final shadow, and it will be blurred by hand wiping. If the upper and lower fixing rollers are damaged or dirty, there will be a series of problems such as double shadow stain and black line. )


Wiper Blade: When the photosensitive drum finishes printing once, the toner image on the drum surface is not 100% transferred to the paper. therefore, the residual powder left over from the previous pattern is scraped off with a rubber cleaning blade. store in the waste toner bin (Of course, this removal must be carried out without scratching the drum.)

(Note: If the cleaning blade is aged and the residual toner cannot be removed, it will adhere to the page below, with irregular black spots and lines.)


Charge Roller: The charging roller itself is applied with both ac and dc voltages, so it has a dual function of charging the surface of the photosensitive drum and removing the residual potential after an imaging.

(Note:Damage or uncleanness of the charging roller and insufficient charging and discharging of the photosensitive drum caused by voltage consumption during operation may cause bottom ash or affect print quality. )

asseel pack for print head

How We Asseel Pack our Printhead?

As we know, for printhead is easy to have problem and make it not work, especially after long journey from China to our customer’s hand. In order to keep our Printhead work well in end-user hands’. We, Asseel, do a lot effort from collect them in market till packing, we do every step with 100% intentions!


Today, let me tell you how we Asseel pack our printhead.We have strictly rules to follow.


  1. After our engineer tested the printing head, they will run into our packing team. The first and most important thing is that our worker will put some protection fluid on the mirror of the printer head. That will protect our printing head from damaging it, and blocking it.
  2. Kindly pack them with box or transparent box
  3. Weight them one by one to keep the data accurately.
  4. Put them in carton with air bag or foam which will help pretending our Asseel Printhead from damage during the long trip.
  5. Glue the outside box and stock them in warehouse. Maybe you will ask why we glued the whole box? Well,that is a good question. Actually, it will increase our cost, but it can provide more protection for our printing head and then our end-user will get prefect goods.
  6. That is how we Asseel, packing our printhead. Hope it will help you know better of our package term.


Asseel Hot Selling Print heads:

print head for epson l800 print head for hp932 print head for hp920











More information about print heads, pls feel free to contact:


printing heads

Asseel New Arrival Print Head

printing heads

Hot selling printing head for all brands of printers, such as HP, EPSON,

CANON, XEROX, etc. (  Their advantage is that they are

with best quality control, 100% brand and original printhead, 100%

compatible for your printer, etc.





New Arrival Printhead Items:

print head for hp920

print head for epson l300 print head for epson l800








More information about Print head, pls contact:




How to replace the compatible toner cartridge MLT-D101S in Samsung Printer

As the leading manufacturer of compatible toner cartridge, our Business philosophy is to provide our customers original quality toner cartridge and save much costs.


Some customers do not know how to replace the compatible toner cartridge in a Samsung Printer, here we use the Samsung MLT-D101S toner cartridge to show you the instructions.


Turn off the machine off,then wait a few minutes for the machine to cool.

Completely open the printer top of the machine.

Grasp the handles on the toner cartridge and pull to remove the cartridge from the machine.

Take a new toner cartridge out of its package.(Don’t use sharp objects such as a knife or scissors to open the toner cartridge package. You could damage the surface of the toner cartridge.)

Holding both handles on the toner cartridge, thoroughly rock it from side to side to evenly distribute the toner.

Place the toner cartridge on a flat surface and remove the protecting cap.

Then remove the protecting paper.

Insert the cartridge until it clicks into place.

Close the printer top,then turn the machine on.


If any questions about Samsung MLT-D101S, pls contact:

Shenzhen Asseel Graphics Co.,Ltd


samsung toner cartridge

How to solve the problem if Samsung toner cartridge cannot be recognized by printer?

As a professional person who have been on toner cartridge line more than 10 years,work for Shenzhen Asseel, I always get complains that their clients said our Asseel toner cartridge can not work on all the Samsung printer in their market! And they said the new toner cartridge can be recognized by the printer. The red light always flash and printer cannot work anymore. It is really headaches! Hereby I am writing, hope help you to know why it happened and how to solve this problem.


This problem is always cause of chip. And there are 2 mainly reasons.

Firstly, Samsung company update their printer firmware and software automatically when you connect to the internet. And unfortunately, your toner cartridge brought at such time and no updates!

Secondly, your chip edition is wrong. According to the official area of Samsung division, there are four editions in market, CHN,MEA,EXP,EUR and it is easy to find the chip edition from different area. But as the developing of international business, there are a lot persons do not buy the printer from their market directly. They may imported them from China, HK, Dubai. Then the printer editions become chaotic, especially for Middle East, Africa and Bangladesh. And if your toner cartridge edition is wrong, it will be never workable on the printer!


In order to avoid the problem cause of chip, there are one universal chip available in market, which content 3 editions,MEA,EXP,EUR! And if you are lucky enough, your toner cartridge may have such chip.


So if you are lucky guy, then how you help your printer be workable? Frankly speaking, it is veryyy easy! Please follow me here!


Install your new compatible Samsung toner cartridge in the printer and if you find the red light keeping flashing and cannot print, please power off the printer

Wait for 3-4 seconds, then power on the printer. The chip will change its edition automatically! And what you need do is just waiting for the light flash stop and to see what happened.

If the printer still can not work, please power off the printer again and repeat Step 2.

You maybe need repeat step 1 and step 2 three times at most. Then you will find your printer work perfect. And some person just need power off and power on the printer 1 times. Then everything be solved!


Dear friend, you see it is so easy for us solve such problem. If any questions about toner cartridge MLT-D111S, MLT-D111S chip or other models of Samsung toner cartridge, pls feel free to contact us:

Shenzhen Asseel Graphics Co.,Ltd


white airbag

Five major advantages of white airbag for toner cartridge

White airbag for toner cartridge is a new type of packaging material, the use of air column, 2cm-4cm air column made into a fit buffer sleeve, air column inflated 65% natural formation of the buffer, linked to an independent air column, forming a surrounding object the best cushioning package.

white airbag for toner cartridge
Raw materials of white airbag for toner cartridge


Five major advantages of white airbag for toner cartridge

1.Low cost
airbags are made of 99% air and 1% film, the packaging material is not fully flat before use, do not take up space can save a lot of storage costs. Under normal conditions of use, the gas bag can save you 20% to 40% of the cost.

Space saving
White airbag for toner cartridge is not fully flat before the inflatable, light and small volume, you can live on-line, immediately fill, how much to charge how much, do not take up space.

More safe
It has excellent support, a single airbag can withstand 60 ~120kg of the weight without breaking. Airbags can really protect the packaging of the product, not just filling, support. And the traditional filler comparison, not because of the packaging box gap, and in the process of transport items often caused by damage, even if the impact of external pressure, the cartridge inflatable bag personal design can also use air to disperse the pressure to avoid damage.

Recyclable, non-polluting
White airbag for toner cartridge used by the authority of the detection of toxic substances and toxic heavy metals, in line with European environmental standards. The raw material (film) or finished product (air cushion) is completely clean, regardless of any conditions such as production, use, placement or recycling, without causing any pollution and no environmental problems.

Reduce the packaging process to save manpower
White airbag for toner cartridge using special production equipment, easy production, easy to modify, quick and easy, very short delivery cycle.

Avoid direct contact with the following items, such as: nails, blades and other sharp metal.