Ninestar Releases Replacement Toner Cartridges for HP Printers

Ninestar has announced the release of new replacement toner cartridges for use in HP CP1215/2020 series printers.

Since December 2018, Canon has been taking actions to protect its granted patent EP 1 977 289B1, which is used in the products listed in Table 1, against the companies listed in Table 2, including filing lawsuit and submitting some infringement reports to Amazon.

Table 1: The OEM Models Covered by EP 1 977 289B1

Table 2: Canon’s Complaints

Analysis of Canon’s EP 1 977 289B1

Canon’s EP 1 977 289B1 has two key features:

A projected position in which the second force receiving portion is projected outwardly of the developing unit from.

A stand-by position which is retracted from the projected position by movement of the first force receiving portion caused by the first force (of a main assembly of an electrophotographic image forming apparatus)

The function of this OEM’s patented structure design is when printing mono documents, the DR and OPC of the other color toner cartridges are detached automatically. Ninestar noticed that some companies’ so-called “patented solutions” for use in HP CP1215/2020 series printers are to cancel OEM’s detachment mechanism of OPC and DR which based on the existing OEM structure. However, it will bring greater quality problem especially under the low coverage printing environment, such as overload of waste toner bin and the wear of OPC if the detachment mechanism is cancelled.

Ninestar claimed that with years’ experience in developing patented products, they has worked out a perfect solution for Canon’s EP 1 977 289B1.

For more details of new products, please click HERE or contact

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