Photosensitive device for laser printer

Abstract

The invention provides a photosensitive device for a laser printer. The photosensitive device comprises a main body, a top cover, a fixing structure, a carbon powder bin, a connecting plate and a control system; the fixing structure penetrates through the side wall of the main body and is matched with a clamping structure; the clamping structure is fixed on the side wall of the main body; a conveying structure is assembled at the upper end of the outer wall of the carbon powder bin; one end of the connecting plate is connected with the fixing structure, and the other end of the connecting plate is connected with the carbon powder bin; and the control system comprises a humidity sensor group, a flow velocity sensor group, a check valve group, a pressure sensor group and a controller, wherein the humidity sensor group is arranged on a photographic fixing device, the check valve group is arranged on the nozzle of the carbon powder bin, the pressure sensor group is arranged at the bottom of the carbon powder bin, the controller is electrically connected with the humidity sensor group, the check valve group and the pressure sensor group, and the controller compares real-time humidity Rsmeasured by the humidity sensor group with a maximum humidity value Rz, and compares a real-time flow velocity Qs measured by the flow velocity sensor group with a standard flow velocity Qb so as tocontrol the check valve group.

Description

technical field [0001] The present invention generally relates to the technical field of printers, and more particularly relates to a photosensitive device for a laser printer. Background technique [0002] Laser printers originated from the laser phototypesetting technology in the late 1980s and became popular in the mid-1990s. It is a print output device that combines laser scanning technology and electrophotography technology. Its basic working principle is that the binary data information sent by the computer is converted into a video signal by the video controller, and then the video signal is converted into a laser driving signal by the video interface / control system, and then the laser scanning system generates the character information. The laser beam is finally imaged by an electrophotographic system and transferred to paper. Compared with other printing equipment, laser printers have the advantages of fast printing speed and high image quality; however, the cost ...

AI Technical Summary

Problems solved by technology

Compared with other printing equipment, laser printers have the advantages of fast printing speed and high image quality; however, the cost of use is relatively high. The photosensitive device used in existing laser printers needs to remove the entire toner chamber when adding toner, which is poor in practicability

At the same time, the existing toner warehouse is difficult to control the output of toner in short supply, and working for a long time will cause the quality of printing to decline

Images