CN201780456U

CN201780456U - Cartridge for laser printers

Info

Publication number: CN201780456U
Application number: CN2010202319875U
Authority: CN
Inventors: 吴鸣; 卢艳
Original assignee: Print Rite Unicorn Image Products Co Ltd
Current assignee: Print Rite Unicorn Image Products Co Ltd
Priority date: 2010-06-22
Filing date: 2010-06-22
Publication date: 2011-03-30
Anticipated expiration: 2020-06-22
Also published as: WO2011160555A1

Abstract

The utility model provides a cartridge for a laser printer. The cartridge for the laser printer comprises a developing roller, a powder delivering roller for delivering carbon powder, a powder regulating knife for regulating the thickness of the carbon powder layer on the surface of the developing roller, a powder feeding rack for maintaining carbon powder fluffy and delivering carbon powder, and a carbon powder bin for reserving carbon powder, and the carbon powder contained in the carbon powder bin are laid on the surface of a photosensitive drum by the developing roller. The cartridge further comprises a temperature induction and display device and can prevent print quality defects caused by temperature and humidity variation of the environment.

Description

Carbon powder cartridge for laser printer

Technical field

The utility model is a carbon powder cartridge for laser printer, it comprises developer roll, powder feeding roller, powder delivery cutter, powder feeding frame and toner, it is laid in the electrostatic latent image zone that photosensitive drum surface carries to the carbon dust that holds in the toner according to default layout by developer roll, and electrostatic latent image is converted to by the shown visual image of carbon dust and so on developer.

Background technology

Referring to Fig. 1, show the basic imaging process of laser printer carbon powder box.Charged equably by charging roller 102 in photosensitive drums 101 surfaces.Laser scanner 103 contains image information and through the laser beam 104 of ovennodulation, forms the different static voltage figure of distributions through laser beam 104 irradiation backs on photosensitive drums 101 surfaces to photosensitive drums 101 emission, that is with the electrostatic latent image for the treatment of that duplicating image is corresponding.Afterwards, from the carbon dust 106 of developer roll 105 then be adsorbed on the surface of photosensitive drums 101, electrostatic latent image is covered that the back converts it to can macroscopic visual image.This electrostatic latent image converts the process of visual image to, is exactly developing process.Along with the rotation of photosensitive drums 101, replace to the position at transfer roll 107 places at the visual image that photosensitive drums 101 surfaces form by carbon dust 106.Effect through the entrained transfer voltage of transfer roll 107, the carbon dust of visual image form is transferred on the surface of recording mediums 108 such as paper, with after after warm-up mill (not shown) and backer roll (not shown) carry out heating and pressurizing to the visual image on the recording medium 108, carbon dust is penetrated in the fibrage of recording medium 108, and the visual image that carbon dust is formed for good and all solidifies on recording medium 108.So just finished a basic imaging workflow.This flow process is the result of cycle operation repeatedly, just can obtain required image.

Aforementioned imaging process can only obtain a small part of required image usually, obtain the whole of required image, needs the repeatable operation aforementioned imaging process that turns round.Under this repeatable operation turns round the mode of operation of aforementioned imaging process, need to keep the workplace of photosensitive drums 101 to be in holding state all the time.Yet, by transfer roll 107 after the carbon dust of visual image form being transferred on recording medium 108 surfaces, still having the residual carbon dust 109 of part is attached to photosensitive drums 101 and has lived through on the workplace of imaging process, this workplace that lives through imaging process still needs to participate in next imaging process, therefore, before this workplace that lives through imaging process enters next imaging process, must remove residual carbon dust 109 attached to it to obtain the state of cleaning.Useless powder scraping blade 110 has promptly been taken on the role who removes residual carbon dust 109 by the scraping mode that contacts with photosensitive drums 101 workplaces.

As described above, in cartridge, carbon dust is the unique material carrier that forms image.Before carbon dust participated in developing process, it is stable that the physicochemical characteristics of itself should keep.But as consumptive article, carbon dust but has very high susceptibility to temperature, humidity.When humidity ratio was big, carbon dust moisture-sensitive, conglomeration produced the bottom ash or the powder defective of wafing when consequently printing.Higher when temperature, even when surpassing its fusing point, carbon dust will lump.Thereby the pouring process of the production of cartridge, particularly carbon dust all is subjected to strict temperature, humidity restriction, and specification product are all packed, store.

The optimum working temperature of cartridge is 15～32 ℃, relative humidity 30%～80%.When the temperature of overshoot, humidity range work, can cause the print quality problem usually, also can cause permanent injury to some easy consumption parts of cartridge, even humiture is returned to prescribed level, the defective of these parts can not be repaired.

Common working environment can satisfy the request for utilization of cartridge, but situation for the environment conversion, when cartridge from storage condition, warehouse for example, transfer to working environment, perhaps adjust to different working environments, and when beginning to print immediately, the temperature of cartridge, humidity are difficult to suddenly adapt to the variation of working environment temperature, humidity, and the ratio that the print quality defective consequently occurs is higher.

The utility model content

At the adjustment that above-mentioned environment conversion brings to cartridge, the utility model purpose is to provide a kind of carbon powder cartridge for laser printer.This cartridge can be warned the user immediately and have the print quality risk when environment temperature, humidity do not meet the predetermined work scope, even the limit laser printer enters duty, prevents the print quality defective and causes unnecessary waste.

For reaching to above-mentioned utility model purpose, the utility model utilization has the carbon powder cartridge for laser printer of following structural form, it comprises developer roll, be used for transmitting the powder feeding roller of carbon dust, be used for regulating developer roll surface carbon powder layer thickness the powder delivery cutter, be used for keeping carbon dust fluffy and transmit the powder feeding frame of carbon dust and the toner that is used to lay in carbon dust.Developer roll is laid in the carbon dust that holds in the toner on the surface of photosensitive drums.This cartridge also comprises temperature sense and display device.

Aforementioned laser printer cartridge, its temperature sense and display device are electrically connected with maintenance between the central processing unit of laser printer.

Aforementioned laser printer cartridge also comprises humidity inductive and display device.

Aforementioned laser printer cartridge, its humidity inductive and display device are electrically connected with maintenance between the central processing unit of laser printer.

The utility model carbon powder cartridge for laser printer, temperature, the humidity adjustment brought to cartridge at the environment conversion, employing is set up the mode of temperature, humidity inductive and display device and is immediately reminded the user should avoid making cartridge enter duty under the unmatched situation of inside and outside temperature, damp condition of cartridge, avoids occurring unnecessary print quality defective with this; For more effectively avoiding Yin Wen, humidity to change the purpose that causes the print quality defective, temperature, humidity information that temperature, humidity inductive and display device are obtained send the laser printer central processing unit to, information parameter as its control self duty, so that the restriction laser printer enters duty when the inside and outside temperature of cartridge, damp condition mismatch, can efficient more prevent the print quality defective and cause unnecessary waste in the highland.

Description of drawings

Fig. 1 has laser printer carbon powder box imaging process synoptic diagram now.

Fig. 2 the utility model carbon powder cartridge for laser printer skeleton view.

Embodiment

Describe the utility model carbon powder cartridge for laser printer in detail below in conjunction with accompanying drawing.

Referring to Fig. 2, show the utility model carbon powder cartridge for laser printer skeleton view.

In conjunction with Fig. 1, the main composition of this cartridge a partly comprises developer roll 105, powder feeding roller 111, powder delivery cutter (not shown), powder feeding frame (not shown) and toner 112.

Toner 112 is hollow cavities that the box body by cartridge a constitutes, and it provides the deposit space of carbon dust for cartridge a.

The inner chamber that places toner 112 is set up in powder feeding.It realizes interlock by being arranged at cartridge a along the gear train assembly (not shown) and the laser printer of developer roll 105 axial ends.Under laser printer drove, the carbon dust that toner 112 is held in the rotation that the powder feeding frame forms remained on fluffy mobile pulverulence, and is sent to the position at developer roll 105 and powder feeding roller 111 places.

Axially the keeping on cartridge a of developer roll 105, powder feeding roller 111 and powder feeding frame three, be parallel to each other.The carbon dust that powder feeding roller 111 transmits the powder feeding frame further is laid near the developer roll 105 equably.Near the carbon dusts that are laid in the developer roll 105 are adsorbed on by magnetic force on the periphery of developer roll 105, regulate its thickness via the powder delivery cutter at last after, be carried near the photosensitive drums 101 by developer roll 105.

On the cartridge outer surface of cartridge a, be provided with temperature, humidity inductive and the display device that to respond to and to show temperature, humidity arround the cartridge a simultaneously.In the present embodiment, temperature, humidity inductive and display device adopt temperature, humidity gauge tap 113.Temperature, humidity gauge tap 113 keep being electrically connected by the central processing unit of transmission line (not shown) and laser printer.After the work threshold range of temperature, humidity gauge tap 113 is set, when temperature, damp condition is up to specification when requiring, temperature, 113 conductings of humidity gauge tap, printer is in the stand-by operation state; When temperature, when damp condition exceeds standard, temperature, humidity gauge tap 113 disconnect, and printer quits work, and shows the information warning that temperature, humidity exceed standard.

As another simple embodiment of the utility model carbon powder cartridge for laser printer, available temperature, humidity inductive printing ink replace temperature, humidity gauge tap 113.At this embodiment, temperature, humidity inductive color of ink change with environment temperature, and the user can confirm whether cartridge is in normal holding state according to the state of temperature, humidity inductive color of ink.

Claims

1. carbon powder cartridge for laser printer, comprise developer roll, be used for transmitting carbon dust powder feeding roller, be used for regulating described developer roll surface carbon powder layer thickness the powder delivery cutter, be used for keeping carbon dust fluffy and transmit the powder feeding frame of carbon dust and the toner that is used to lay in carbon dust, described developer roll is laid in the carbon dust that holds in the described toner on the surface of photosensitive drums, it is characterized in that, also comprise temperature sense and display device, described temperature sense and display device are electrically connected with maintenance between the central processing unit of described laser printer.

2. carbon powder cartridge for laser printer according to claim 1 is characterized in that, also comprises humidity inductive and display device.

3. carbon powder cartridge for laser printer as claimed in claim 1 or 2 is characterized in that, described humidity inductive and display device are electrically connected with keeping between the central processing unit of described laser printer.