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Reset ink levels for Epson CIS Systems. Fix the error "Cannot recognize the following ink cartridge(s)."

Reset ink levels for Epson CIS Systems. Fix the error "Cannot recognize the following ink cartridge(s)."

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How to refill BCH 950/951 and 932/933 Cartridges RC-HP-950-ARC RC-HP-932-ARC

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How to refill HP 21, 22, 27, 28, 56, 57, 58, 59 OEM cartridges

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How to refill Canon PG30, PG40, PG50, PG210, PG240, CL241, PG245, CL246, PG440, PG540 & CL31, CL41, CL51, CL211, CL241, CL246, CL441, CL541 OEM cartridges

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How to Change Chip or Re-Arrange Color Sequence: CIS for Epson

A step-by-step guide on how to change a cartridge chip or color sequence for CIS's for Epson.[...]



How to install BCH CS-CN-Pro9000 Continuous Ink System for Canon PIXMA Pro9000 Mark II

Canon Pixma Pro9000 is an 8-color ink system; prints 4800x2400 dpi with FINE printhead technology. It prints Photo Lab quality 11-inchx14-inch color photo in approximately 1 minute 23 seconds. Support for fine art paper up to 13"x19" with two separate paper paths, including front feeder for heavy-weight paper types

Today we are going to show you how to install BCH continuous ink system for Canon Pro9000 Mark II.

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How to reset HP 0fficejet 6520, 6700, 8500, 8600, 8620, 8625

How to reset HP 0fficejet 6520, 6700, 8500, 8600, 8620, 8625

How to let refilled cartridge working for HP Officejet[...]



Under the Hood: Continuous Ink System (CIS) for HP 564 / 920

These are frequently asked questions from our customers:


1) What CIS do you recommend? Which model do you use?
2) Should I use pigment or dye ink with HP 564 / 920 cartridges?
3) What about chips, what kind of chip do I need to buy?
4) What is the difference between BCH Standard and Premium-grade ink?
5) How much can I print with a CIS?
6) What is the quality of your ink?

 I would like to bring you to our lab and show you what we use. Although we sell many top of the line CIS units, our lab unit is not fancy looking, as the French would say “a shoe repairman’s son wears the worst shoes on earth”. I want to demonstrate that even the most basic CIS model will meet your printing needs and is a good fit for small business and beyond.

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How to Remove Air from DIY CIS Cartridges

Priming is important for making a successful DIY CIS. Most DIY tools come with a generic cartridge clip. However, because there are many variations of cartridges, you may not get the clip that fits. Today we show a poor man’s solution to prime any DIY CIS cartridge without using any cartridge clips.

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How to Unclog a Printhead

Some common problems in printers are indicative of print head clogging.  If you are experiencing a decrease in print quality, missing lines or blank pages while trying to print, this may be the issue.  There are many tips on the internet about unclogging the print head.  Such tips range from helpful to detrimental for the printer.  Today, I describe the unclogging process from an ink supplier’s perspective and hope it will be helpful to household users.

The mechanics behind clogging are simple.  The print head is like a water tank with a very tiny opening.  During printing, the machine squeezes out microscopic (picoliter) ink droplets.  The ink is designed to dry fast so as not to smudge. 

These are some possible reasons for clogging:

  • If the print head is exposed to the air for a long period of time, ink can dry up and block the small opening.
  • Foreign objects (ink impurity or dust) can block the opening.  Some internet instructions advise users to wipe clean the print head with tissues or paper towels, which may introduce blockage to the print head.  
  • An air bubble can temporarily block the opening.  Air is naturally dissolved in the ink. 
    • Fluctuation of room temperature will change the air concentration and thus form air bubbles. 
    • Changing cartridges also introduces air into the system.  (*Note: This is why you should do a print head-cleaning cycle after installing a new cartridge). 
  • It may not be a blockage.  There are processes that can permanently damage the nozzle; the print head may be scratched and damaged, the print head may have over-heated during a long printing process, or a paper jam may have caused the issue. 
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