CN2565050Y - Carbon dust box with service life increasing device - Google Patents

Abstract

The utility model relates to a carbon powder box with a life extending device. The utility model relates to the equipment of electroetching technology applying electric charge figures, particularly to the carbon box used for a facsimile machine and a printer. The utility model comprises a box body in which carbon powder is arranged, wherein, a part of the box body near a host reluctance sensor is provided with a magnetizer. When a host emits an alarm signal for replacing the carbon powder box, the carbon powder in a powder barn has reasonable remnant quantities, the service life of each carbon powder box is correspondingly extended, and environment pollution is reduced.

Description

The cartridge that has device for prolonging

Technical field

The utility model relates to the equipment, particularly facsimile recorder of the electrograving technology of using the electric charge figure, the cartridge that printer is used.

Background technology

Existing facsimile recorder and the printer removable cartridges of relative main frame that use have a powder storehouse more in the cartridge, be used for the magnetic carbon dust of accommodating belt.Receive the photosensitive drums generation latent image that laser generator sends signal beams, on print media, form image by developing apparatus again.Utilize a magnetoresistive transducer that is arranged on the main frame, can predict the capacity of magnetic carbon dust in this class cartridge powder storehouse, its principle is, along with the minimizing of magnetic carbon dust, magnetic resistance increases, and magnetoresistive transducer is provided with a threshold value, when its magnetic resistance value that senses is higher than threshold value, be that the magnetic carbon dust is less than certain when a certain amount of in the powder storehouse, send the signal of changing cartridge by main frame, the type that has also forces main frame to quit work.

Summary of the invention

Cartridge through a certain model facsimile recorder is used carries out great number of statistic data and shows, main frame provides when changing the cartridge signal, and the residual amount in the powder storehouse is still up to 30-60%, and this not only causes the wasting of resources, bring economic loss to the consumer, also environment has been formed pollution.

The purpose of this utility model is to propose a kind of cartridge that improves structure, makes main frame send when changing the cartridge alerting signal, and carbon dust has rational residual amount in the powder storehouse, prolongs the serviceable life of every cartridge relatively, reduces environmental pollution.

For achieving the above object, the technical solution adopted in the utility model is at the position of the close main frame magnetoresistive transducer of cartridge box body a magnetic conductor to be set.Described magnetic conductor can be positioned at inboard, powder storehouse, also can be positioned at the outside in powder storehouse.

By above scheme as seen, owing on box body, installed a magnetic conductor additional, concerning the main frame magnetoresistive transducer, increased magnetoconductivity in the induction zone relatively, when the quantity that has the carbon dust of magnetic in this district reduced to the former amount that should send signal, magnetic resistance did not but reach threshold value, still can work on, consume carbon dust, when magnetic resistance reaches threshold value, just send signal.Generally can adopt a sheet metal that is fixed on the box body to be used as the magnetic resistance compensation.

Accompanying drawing given below and its technical scheme, as adopting a specific embodiment of the present utility model, following actual measurement statistics is arranged, on main frame, use and send carbon dust and use up when changing the powder box signal, residual powder amount is about 25 grams in the powder storehouse, accounts for 16.6% of powder box powder filling total amount (150 gram).And the residual powder amount of the powder box that does not install magnetic conductor additional is generally the 30-60% of powder filling amount through actual measurement.

Description of drawings

Fig. 1 is based on the powder storehouse lid view of a cartridge of the present utility model;

Fig. 2 is the A-A cut-open view of Fig. 1.

Below, be example with this cartridge, the utility model is described in further detail in conjunction with its accompanying drawing.

Embodiment

Referring to Fig. 1, this is the powder Cang Gai figure of certain facsimile recorder with cartridge, when cartridge is inserted main frame, before a recessed district 1 on box body (powder storehouse) outside surface will be positioned at the probe of main frame magnetoresistive transducer.

Referring to Fig. 2, for say something clear for the purpose of, this figure is amplified.On the inwall of powder storehouse lid 2, the chromium plating iron plate 3 of one 5 mm wide, 30 millimeters long is fixed at the back side in promptly recessed district 1, and like this, the probe 4 of magnetoresistive transducer will see through that the powder storehouse covers 2,3 pairs of magnetic carbon dusts of chromium plating iron plate be surveyed.

Claims (3)

1, the cartridge that has device for prolonging includes the box body of a built-in carbon dust, it is characterized in that:

Portion is provided with a magnetic conductor at the nearly main frame magnetoresistive transducer of box body.

2, cartridge according to claim 1 is characterized in that:

Described magnetic conductor is positioned at inboard, box body powder storehouse.

3, cartridge according to claim 1 and 2 is characterized in that:

Described magnetic conductor is one to be fixed on the sheet metal on the box body.

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