Printer external ink supply device

Abstract

The invention relates to an external ink supply device for a printer, comprising a housing with a front wall, a top wall and a bottom wall, an ink outlet arranged at the lower part of the front wall, a first shielding part arranged at the upper part of the front wall, and The second shielding part on the outside of the middle part of the front wall, the light-transmitting part between the second shielding part and the front wall, is arranged on the housing and the third shielding part is located on the inside of the middle part of the front wall, and is arranged on the housing on the outer surface of the chip. Wherein, the chip includes a memory for storing ink remaining information and a communication part for communicating with the main board of the printer. The advantage is that the external ink supply device of the printer has a relatively simple structure, a high ink capacity, and the shell is easy to process.

Description

technical field [0001] The invention relates to an external ink supply device for an inkjet printer. Background technique [0002] Such as figure 1 As shown, the direction X is the installation direction of the printer's external ink supply device 100 into the printer. The external ink supply device 100 of the printer has a casing 110 , and the casing 110 has a top wall 101 , a bottom wall 102 , and a front wall 103 . The lower part of the front wall 103 is provided with an ink outlet 121 , the upper part is provided with a first shielding part 122 , and the outer part of the middle part is provided with a second shielding part 123 . A light-transmitting portion 124 is disposed between the second shielding portion 123 and the front wall 103 , and a light-transmitting area 125 is disposed inside the middle of the front wall 103 . The first shielding part 122 is used to detect whether the ink supply device 100 external to the printer is installed properly. The thickness o...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of the above-mentioned external ink supply device of the printer is that the structure is complex, and the float occupies a large amount of space in the ink chamber, which reduces the ink capacity of the external ink supply device of the printer.

In addition, the light-transmitting area 125 is made of high-cost light-transmitting materials and is seamlessly connected with the housing to realize the functions of light transmission and ink storage. The surface processing accuracy of the optical area is extremely high, the processing is difficult and the cost is high

Images