CN114148093B - Anti-fogging method of printer - Google Patents
Anti-fogging method of printer Download PDFInfo
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- CN114148093B CN114148093B CN202111440642.XA CN202111440642A CN114148093B CN 114148093 B CN114148093 B CN 114148093B CN 202111440642 A CN202111440642 A CN 202111440642A CN 114148093 B CN114148093 B CN 114148093B
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- printer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/377—Cooling or ventilating arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- General Physics & Mathematics (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
The invention relates to an anti-fogging method of a printer, which detects the temperature alpha in the printer in real time when the printer works and sets a fogging temperature threshold value Tem 1 And a small probability fogging temperature threshold Tem 2 Real-time detecting the temperatures alpha and Tem 1 、Tem 2 By comparison, if α < Tem 1 Controlling the fan not to start working; if Tem 1 ≤α≤Tem 2 Controlling the fan to work intermittently; if α > Tem 2 Controlling the fan to start at full speed; in addition, in the intermittent working process of the fan, judging whether the duration time beta of the intermittent working of the fan is less than the preset time T, if so, continuously controlling the intermittent working of the fan; if not, controlling the fan to be started at full speed. The method can improve the problem of whitish image caused by fogging in the machine body, simultaneously improve the problem of tearing and blurring image caused by carbon powder agglomeration, and reduce the influence on the printing effect of the printer.
Description
Technical Field
The invention relates to the technical field of printing, in particular to an anti-fogging method of a printer.
Background
Laser printer is when using, and the temperature in the organism can be along with the work of printing the part constantly risees, and then leads to the temperature in the organism constantly to rise, consequently need set up the fan usually and cool down for organism inside to guarantee laser printer's normal operating.
When the laser printer is in an environment of low temperature and high humidity or high temperature and high humidity, because a certain temperature and humidity difference exists between the relatively closed environment inside the laser printer body and the environment outside the laser printer body, for example: the laser printer is low in temperature and humidity, high in temperature and high in humidity outside the printer, when the laser printer prints a task, external high-humidity air enters the printer body through an air duct of the printer and encounters a transmitting mirror of the laser printer, and due to the fact that the temperature in the printer is slightly low, the temperature and the humidity suddenly change at the moment can cause the transmitting mirror to generate a fogged physical phenomenon, and image whitening is caused. When the humidity in the machine is too high, the carbon powder is agglomerated when meeting water, so that the portrait is torn and blurred.
Disclosure of Invention
The invention aims to solve the technical problem of providing a fog-proof method of a printer, which can solve the problem that the image is whitish due to fog of the printer and can also solve the problem that the image is torn and blurred due to carbon powder agglomeration.
The technical scheme adopted by the invention for solving the technical problems is as follows: an anti-fogging method for a printer, characterized by:
when the printer works, the temperature alpha in the printer is detected in real time, and a fogging temperature threshold value Tem is set 1 And a small probability fogging temperature threshold value Tem 2 Wherein, 0 DEG C<Tem 1 <Tem 2 ；
Real-time detected temperature alpha and Tem 1 、Tem 2 By comparison, if α < Tem 1 Controlling the fan not to start working; if Tem 1 ≤α≤Tem 2 Controlling the fan to work intermittently; if α > Tem 2 Controlling the fan to start at full speed;
in addition, in the intermittent working process of the fan, judging whether the duration time beta of the intermittent working of the fan is less than the preset time T, if so, continuously controlling the intermittent working of the fan; if not, the fan is controlled to be started at full speed.
In order to improve the problem of carbon powder caking, the method for determining the preset time T comprises the following steps:
in the intermittent working process of the fan, the humidity in the printer is detected in real time;
humidity H at a certain time t in the printer t Humidity H in printer when fan starts intermittent working t0 Making a comparison if | H t -H t0 If | > [ delta ] H, setting the time T as preset time T;
wherein Δ H is a set humidity difference threshold. This improves the problem of carbon powder caking by controlling the fan to run at full speed to provide the fastest reduction in humidity while reducing the risk of fogging.
In particular, the fan operates according to a work t 1 Second, stop t 2 The second clearance type working mode is circularly operated, wherein t is more than 0 1 ＜t 2 。
In order to realize the temperature detection in the printer, a temperature sensor for detecting the temperature in the printer is arranged in the printer.
In order to realize the humidity detection in the printer, a humidity sensor for detecting the humidity in the printer is also arranged in the printer.
Compared with the prior art, the invention has the advantages that: through carrying out real-time detection to the temperature in the printer to judge and then control the work of fan through the internal temperature of organism, thereby improve the interior portrait whiting problem that results in of fogging, through increase time logic judgement in fan intermittent type during operation in addition, control fan full speed start when the duration of fan intermittent type formula work reaches the default, can be fastest make humidity decline and improve the carbon dust caking and lead to portrait tear fuzzy problem, reduced the influence to printer printing effect.
Drawings
FIG. 1 is a flow chart of a method for preventing fogging of a printer according to an embodiment of the present invention;
FIG. 2 is a graph showing the temperature and humidity changes in the printer body when the fan is not activated according to the embodiment of the present invention;
FIG. 3 is a graph showing the temperature and humidity changes in the printer body when the fan intermittently rotates according to the embodiment of the present invention;
FIG. 4 is a graph showing the temperature and humidity changes in the printer body when the fan is rotated at full speed in accordance with an embodiment of the present invention;
fig. 5 is a graph showing the temperature and humidity changes in the printer body when the fan is rotated at full speed after intermittent rotation according to the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
A temperature sensor for detecting a temperature in the printer is provided in the printer. And a humidity sensor for detecting humidity within the printer.
As shown in fig. 1, the anti-fogging method of the printer in this embodiment is: when the printer works, the temperature alpha in the printer is detected in real time, and a fogging temperature threshold Tem is set 1 And a small probability fogging temperature threshold Tem 2 Wherein, 0 DEG C<Tem 1 <Tem 2 。
Laser printer is printing the working process in, and inside part can produce the heat, and then makes the inside temperature of organism of printer constantly rise, in order to guarantee laser printer's the normal operating of print job, consequently needs fan work usually, and then cools down the heat dissipation to the part of the inside of organism. When the outside temperature is lower than Tem 1 The air enters the printer body, and the temperature in the printer rises continuously along with the continuous printing work, so that the printer body is easy to fog; when the outside temperature is higher than Tem 2 The air enters the body of the printer, and along with the continuous printing work, the heat in the body is enough to quickly evaporate the moisture in the air, and the situation that the air is fogged in the body basically cannot occur. The above Tem 1 And Tem 2 The value of (A) is determined according to practical experiments, and in the embodiment, tem 1 ＝10℃，Tem 2 ＝43℃。
Real-time detecting temperature alpha and Tem 1 、Tem 2 Comparing; if alpha < Tem 1 If so, judging that the current air entering the machine body is easy to fog along with the rise of the temperature in the machine body, and controlling the fan not to start to work so as to reduce the air fogging condition in the machine body in order to reduce the air with high humidity outside entering the machine body; if Tem 1 ≤α≤Tem 2 If the temperature of the air entering the machine body is higher than the set temperature, the probability that the air entering the machine body will be fogged is judged to be lower, and the fan is controlled to work intermittently, so that the fogged condition of the air entering the machine body is reduced as much as possible, and effective heat dissipation in the machine body is ensured conveniently 1 Second, stop t 2 The second clearance type working mode is circularly operated, wherein 0 <t 1 ＜t 2 (ii) a In this example, t 1 ＝1，t 2 =3; if α > Tem 2 If so, the fan is controlled to be started at full speed, so that the machine body can be effectively cooled. In the embodiment, if the alpha is less than 10 ℃, the fan is controlled not to start to work; if the alpha is more than or equal to 10 ℃ and less than or equal to 43 ℃, controlling the fan to work intermittently; if alpha is more than 43 ℃, the fan is controlled to start at full speed.
In the intermittent working process of the fan, judging whether the duration time beta of the intermittent working of the fan is less than the preset time T, if so, continuously controlling the intermittent working of the fan; if not, controlling the fan to be started at full speed. In this embodiment, the method for determining the preset time T includes: in the intermittent working process of the fan, the method also comprises the steps of detecting the humidity in the printer in real time and detecting the humidity H at a certain moment t in the printer t Humidity H in printer when fan starts intermittent working t0 Make a comparison, | H t -H t0 If | is greater than delta H, setting the time T as preset time T; wherein, the Delta H is a set humidity difference threshold value. The humidity difference threshold is determined according to the corresponding humidity when the carbon powder can be agglomerated under the use environment of the printer.
As shown in fig. 2 to 5, when the fan is not started, the temperature and humidity inside the printer body are basically unchanged; when the fan rotates intermittently, the temperature in the printer body tends to increase slightly, and the humidity tends to decrease slightly; when the fan rotates at full speed, the temperature in the printer body tends to increase slightly, and the humidity tends to decrease obviously; the preset time T =3.75min (i.e., time 0: at time 03, after 45, full speed rotation, i.e. the curve shown in fig. 5, where the fan is at a speed of 0: and the humidity at the moment 03. The specific values of the temperature and humidity corresponding to the ordinate in each of the graphs of fig. 2 to 5 are not the temperature and humidity inside the printer when the anti-fogging method is used, but the change in the temperature and humidity using different control logics is studied according to fig. 2 to 5.
The invention utilizes the anti-fogging method of the printer and combines the detection of the temperature in the machine body to realize the prejudgment of the fogging condition after the external air enters, thereby controlling the working condition of the fan, further reducing the introduction of the external air under the condition that the fogging is easily generated in the machine body, relieving the problem of whitish portrait caused by the fogging of parts caused by the external wet air entering the machine body, and reducing the influence on the printing effect of the printer. In addition, different from other fan control logics, when the duration time beta of the intermittent operation of the fan does not reach the preset time T, namely the humidity difference does not reach a set value, the condensation risk of the reflector is reduced through the intermittent operation of the fan; the full-speed starting of the fan after the preset time T enables the humidity reducing block in the machine body to diffuse the fixation waste heat to the selenium drum, and therefore the problem of carbon powder agglomeration is solved through temperature rise and humidity reduction.
Claims (4)
1. An anti-fogging method for a printer, characterized by:
when the printer works, the temperature alpha in the printer is detected in real time, and a fogging temperature threshold Tem is set 1 And a small probability fogging temperature threshold Tem 2 Wherein, 0 DEG C< Tem 1 < Tem 2 ；
Real-time detected temperature alpha and Tem 1 、Tem 2 By comparison, if α < Tem 1 Controlling the fan not to start working; if Tem 1 ≤α≤Tem 2 Controlling the fan to work intermittently; if α > Tem 2 Controlling the fan to start at full speed;
in addition, in the intermittent working process of the fan, judging whether the duration time beta of the intermittent working of the fan is less than the preset time T, if so, continuously controlling the intermittent working of the fan; if not, controlling the fan to start at full speed;
the method for determining the preset time T comprises the following steps:
in the intermittent working process of the fan, detecting the humidity in the printer in real time;
in a printerHumidity H at a certain time t t Humidity H in printer when fan starts intermittent working t0 Making a comparison if | H t -H t0 If | is greater than Δ H, setting the time T as a preset time T;
wherein, the Delta H is a set humidity difference threshold value.
2. The anti-fogging method for a printer according to claim 1, wherein: the fan is operated according to the working t 1 Second, stop t 2 The second clearance type working mode is circularly operated, wherein t is more than 0 1 ＜t 2 。
3. The fogging prevention method for a printer set forth in claim 2, wherein: a temperature sensor used for detecting the temperature in the printer is arranged in the printer.
4. The fogging prevention method for a printer according to claim 3, wherein: and a humidity sensor for detecting the humidity in the printer is also arranged in the printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440642.XA CN114148093B (en) | 2021-11-30 | 2021-11-30 | Anti-fogging method of printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440642.XA CN114148093B (en) | 2021-11-30 | 2021-11-30 | Anti-fogging method of printer |
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| CN114148093A CN114148093A (en) | 2022-03-08 |
| CN114148093B true CN114148093B (en) | 2023-02-14 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05311956A (en) * | 1991-05-21 | 1993-11-22 | Seiki Suyama | Indoor ventilation system |
| JP2011242662A (en) * | 2010-05-20 | 2011-12-01 | Konica Minolta Business Technologies Inc | Image forming apparatus |
| CN106926463A (en) * | 2017-04-01 | 2017-07-07 | 金陵科技学院 | A kind of printer |
| CN112698557A (en) * | 2020-10-23 | 2021-04-23 | 宁波得力科贝技术有限公司 | Anti-fogging printer and printer working method |
| CN112731782A (en) * | 2020-12-22 | 2021-04-30 | 北京翔东智能科技有限公司 | Debugging method and system of high-end intelligent color laser printer |
| CN214151397U (en) * | 2020-12-15 | 2021-09-07 | 宁波得力科贝技术有限公司 | Anti-condensation mechanism for printer reflector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6051829B2 (en) * | 2012-12-10 | 2016-12-27 | 日本電気株式会社 | Fan control device |
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2021
- 2021-11-30 CN CN202111440642.XA patent/CN114148093B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05311956A (en) * | 1991-05-21 | 1993-11-22 | Seiki Suyama | Indoor ventilation system |
| JP2011242662A (en) * | 2010-05-20 | 2011-12-01 | Konica Minolta Business Technologies Inc | Image forming apparatus |
| CN106926463A (en) * | 2017-04-01 | 2017-07-07 | 金陵科技学院 | A kind of printer |
| CN112698557A (en) * | 2020-10-23 | 2021-04-23 | 宁波得力科贝技术有限公司 | Anti-fogging printer and printer working method |
| CN214151397U (en) * | 2020-12-15 | 2021-09-07 | 宁波得力科贝技术有限公司 | Anti-condensation mechanism for printer reflector |
| CN112731782A (en) * | 2020-12-22 | 2021-04-30 | 北京翔东智能科技有限公司 | Debugging method and system of high-end intelligent color laser printer |
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| CN114148093A (en) | 2022-03-08 |
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