34results about How to "Ensure printing quality" patented technology

A microparticle / aerosol-collecting device for office machine. The microparticle / aerosol-collecting device is positioned near a printing section or a printer head. The microparticle / aerosol-collecting device includes a housing having an upper section and a lower section defining a space. The space has an opening. An absorption section is arranged in the space. The absorption section is formed with a chamber and multiple passages communicating with the chamber. The microparticle / aerosol-collecting device further includes a cleaning unit disposed in the chamber of the absorption section. The absorption section is rotationally drivable by a motor to create a negative pressure effect around the absorption section, whereby the airflow is collectively taken into the chamber of the absorption section through the passages thereof. Accordingly, the microparticles or ink aerosols are entrained by the airflow to go into the chamber. The microparticles or ink aerosols are then absorbed and removed by the cleaning unit.

The invention provides a printing method of an ink-jet printer. The method comprises the steps that a control system controls a to-be-printed object to continuously rotate and controls a printing trolley to continuously move in a first direction and to jet out a required image or a required text in a to-be-printed area. Specifically, the method comprises the following steps that 1, the boundary dimension of the to-be-printed object is acquired; 2, according to the boundary dimension, a programmable device FPGA calculates the numerical value of the frequency division coefficient N and the numerical value of the frequency multiplication coefficient M independently or through the assistance of an external processor; 3, based on the frequency division coefficient N and the frequency multiplication coefficient M, the programmable device FPGA converts fixed resolution of an encoder into actual image printing resolution; and 4, converted encoder signals are transmitted to a printing control module for printing. By the adoption of the method, the image and the text with consistent resolution and excellent quality can be printed under the condition that the boundary dimensions of the to-be-printed objects are different.

The invention discloses an inkjet printer signal transmission method. A signal is transmitted to at least two spray nozzle control plates through a branched connection plate. The inkjet printer signal transmission method is characterized in that the specific steps of signal transmission include that a, a detection signal is received by an interface in the branched connection plate; b, the detection signal is subjected to latent rule treatment and uneven secondary encoding, and CRC verification treatment is added on the tail of a transmission packet; c, the treated signal is transmitted to the spray nozzle control plates from an output end port in the manner that each channel has two paths; and d, the spray nozzle control plates control spray nozzles to perform printing. According to the inkjet printer signal transmission method, the signal loss can be effectively avoided due to the data transmission manner of the branched connection plate, it is avoided that signal analysis of the spray nozzle control plates fails, the anti-interference capacity is improved, the transmission reliability is improved, and therefore inkjet of a plurality of spray nozzle modules is controlled, the using field is widened, and the inkjet quality is guaranteed.

In a printer for printing on a label of a continuous paper in a middle of feeding the continuous paper unwound from a paper sheet supply unit, while a depressed portion is disposed below a damper portion, a width adjustment guiding portion, which contacts an outer edge in a width direction of the continuous paper to guide a feed of the continuous paper, is disposed on a lower portion of the damper portion such that the lower end portion of the width adjustment guiding portion is positioned within the depressed portion.

Provided are wireless temperature sensors. A temperature sensor with a flexible, large-area printed thermistor can include an negative temperature coefficient (NTC) thermistor for temperature sensing, a control circuitry for electrically connecting with the NTC thermistor and obtaining the temperature sensed by the NTC thermistor, a power source for providing power supply to the NTC thermistor and the control circuitry, and a frame element for supporting the NTC thermistor, the control circuitry and the power source, where the frame element is at least partially thermally insulated to establish thermal equilibrium within the temperature sensor. The temperature sensor can sense the temperature in a fast and accurate way due to fast thermal equilibrium established within the sensor.

A label sheet positioning device is provided for a barcode printer, including a pressure regulation seat having two pressure adjusting knobs and at least one universal adjusting knob mounted to a top thereof. The pressure adjusting knobs serve to adjust pressure for positioning in the upward-downward direction of a label sheet of the barcode printer. The universal adjusting knob functions to realize fine adjustment of pressure for positioning in a universal adjustable manner that the pressure regulation seat applies to the label sheet. At least one universal adjusting mechanism is coupled to bottom of the pressure regulation seat for effecting adjustment of inclination direction by the universal adjustment realized by the universal adjusting knob. At least one printing head holder is coupled to a front portion of the universal adjusting mechanism and has a bottom coupled to a printing head, whereby the printing head holder is subjected to adjustment of pressure in upward-onward direction by the pressure adjusting knobs of the pressure regulation seat and is also subjected to fine adjustment of inclination direction by the adjustment that the universal adjusting knob applies to the universal adjusting mechanism to effect universal fine adjustment for the printing head holder and the printing head in order to ensure tight engagement of the printing head with respect to the label sheet of the barcode printer. Thus, a label sheet positioning device featuring universal fine adjustment of inclination direction is provided.

A printer, which prints by repeatedly reciprocating a rolled recording paper and ejects a printed recording paper, has therein a recording paper storage unit in which the recording paper is temporarily stored. The recording paper storage unit has a configuration formed by at least a part of the periphery of the rolled recording paper or a configuration provided in a space between the rolled paper holder and an ejection slot. This configuration eliminates the need for separately providing a configuration in which a recording paper is set aside when printing a long sheet of printed material and, at the same time, makes the printer smaller.

The invention discloses an ink-jet printing system and a deviation rectifying method for the ink-jet printing system. The ink-jet printing system is specifically composed of a printing unit, a monitoring module and deviation rectifying software, wherein the printing unit comprises a printing module and a printing module beam, the total width of a nozzle on a printing jet head is larger than the width of an image to be printed, the monitoring module comprises a photographing device and a supporting beam, the supporting beam stretches over a printing medium and is located on one side, in the paper discharging direction, of the printing module beam, the supporting beam is provided with the photographing device, when finding that the position of the photographed image deviates, the deviation rectifying software selects the jet head for printing the deviation image and carries out real-time X-axis or Y-axis deviation adjustment on ink discharging data of the selected jet head, an FPGA in a jet head control plate directly transmits the adjusted ink discharging data to the jet head, and the image with printing deviation is adjusted to the correct printing position. The ink-jet printing system is applied to an assembly line, the deviation problem occurring in the image printing process can be found in real time, adjustment is carried out in time, printing will not be interrupted, and meanwhile the printing effect of fast jet drawing is ensured.

The invention discloses a split air path structure for metal 3D printing equipment, which includes a printing chamber body, an air inlet and an air outlet respectively arranged on both sides of the printing chamber body, and also includes a split air member. Set on one side of the top of the printing silo body, it is used to supply air from the top of the printing silo body to the printing silo body, the air outlet end is divided into a shunt, and the shunt is provided with a deflector; the present application is used for metal 3D printing. For the split air path structure of the equipment, by adding a split air piece on the top side of the printing box body, and by setting a deflector in the splitter, the air intake of the split wind piece is divided into three directions of air supply, which effectively removes the The pollutants generated in the printing chamber during the 3D printing process form a protective layer for protecting the galvanometer area and components, thereby effectively ensuring the quality of 3D printing processing. It has the characteristics of simple structure, good protection effect and high decontamination efficiency.

A barcode label retention device is provided for a barcode printer. The barcode label retention device includes s at least one pair of label roll retainers, at least one pair of resilient elements, and at least one pair of fixing plates. The label roll retainers are mounted inside a housing of a barcode printer and spaced from each other to receive and retain a label roll therebetween. The resilient elements are arranged inside each label roll retainer, and the fixing plates are arranged inside each label roll retainer. The fixing plate is connected to the resilient element to provide the fixing plate with resiliency for inward depressibility or outward biasing so that a front portion of the fixing plate projects inwards beyond the label roll retainer to abut against opposite ends of the label roll, whereby the label roll can be securely held by the two fixing plates engaging the opposite ends thereof and the path of a winding / unwinding operation can be stabilized.

The invention discloses an inkjet printer signal transmission method. A signal is transmitted to at least two spray nozzle control plates through a branched connection plate. The inkjet printer signal transmission method is characterized in that the specific steps of signal transmission include that a, a detection signal is received by an interface in the branched connection plate; b, the detection signal is subjected to latent rule treatment and uneven secondary encoding, and CRC verification treatment is added on the tail of a transmission packet; c, the treated signal is transmitted to the spray nozzle control plates from an output end port in the manner that each channel has two paths; and d, the spray nozzle control plates control spray nozzles to perform printing. According to the inkjet printer signal transmission method, the signal loss can be effectively avoided due to the data transmission manner of the branched connection plate, it is avoided that signal analysis of the spray nozzle control plates fails, the anti-interference capacity is improved, the transmission reliability is improved, and therefore inkjet of a plurality of spray nozzle modules is controlled, the using field is widened, and the inkjet quality is guaranteed.

The invention discloses an inkjet printing device, comprising a printing part, a feeding part and a control system, the feeding part includes a feeding station and a printing station, and a jig is arranged at the feeding station of the feeding part , the jig is used to position the object to be printed on the loading station in the feeding part before inkjet printing, and separate the object to be printed before the positioned object to be printed enters the printing station. The inkjet printing device of the present invention reduces the cost of the entire device, saves working time, improves the positioning stability of the object to be printed, and operates in a semi-automatic mode in which feeding and printing are simultaneously performed Improve printing quality and printing efficiency; and design an eccentric adjustment mechanism to ensure the safety and reliability of the entire device.

In an inkjet printer, an ultraviolet irradiator includes a first irradiation portion disposed at the same position as a color ink ejection portion in a front-back direction and a third irradiation portion disposed on the front side of a clear ink ejection portion in the front-back direction, where at the time of printing in a gloss tone printing mode, an average illuminance of a fifth irradiation portion that forms the front side portion of the first irradiation portion is lower than an average illuminance of a fourth irradiation portion that forms the back side portion of the first irradiation portion.

A microparticle / aerosol-collecting device for office machine. The microparticle / aerosol-collecting device is positioned near a printing section or a printer head. The microparticle / aerosol-collecting device includes a housing having an upper section and a lower section defining a space. The space has an opening. An absorption section is arranged in the space. The absorption section is formed with a chamber and multiple passages communicating with the chamber. The microparticle / aerosol-collecting device further includes a cleaning unit disposed in the chamber of the absorption section. The absorption section is rotationally drivable by a motor to create a negative pressure effect around the absorption section, whereby the airflow is collectively taken into the chamber of the absorption section through the passages thereof. Accordingly, the microparticles or ink aerosols are entrained by the airflow to go into the chamber. The microparticles or ink aerosols are then absorbed and removed by the cleaning unit.

In an inkjet printer, an ultraviolet irradiator includes a first irradiation portion disposed at the same position as a color ink ejection portion in a front-back direction and a third irradiation portion disposed on the front side of a clear ink ejection portion in the front-back direction, where at the time of printing in a gloss tone printing mode, an average illuminance of a fifth irradiation portion that forms the front side portion of the first irradiation portion is lower than an average illuminance of a fourth irradiation portion that forms the back side portion of the first irradiation portion.