Encoder bar – Encoder base – Encoder sensor – Encoder clamp – Encoder Parts
- Encoder bar
- 180LPI and 360LPI
- Encoder sensor
- h9730 and h9740
- Wired and wireless
- Encoder base
- Encoder clamp
All in two models, grade 1 and 2.
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Description
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What is an encoder strip?
Encoder bar, which is called Encoder Strip in English, is a thin, transparent thing that has lines and patterns. These lines are generated by Encoder sensor They are called and their job is to convert the rotational motion of the engine into smooth motion. That is Encoder tape helps machines understand where mechanical parts are moving. And based on that, give appropriate feedback.
In printing machines, such as Banner printing machineThe encoder strip is very important because it maintains the accuracy of the print carriage movement. There are different encoder strips on the market, made for different machines with different sensors. Proper care and maintenance of the encoder strip is very important, because if it is damaged, for example if ink is spilled on it, it can damage it and reduce the accuracy of the machine.
Now this encoder strip is a transparent thing that has fine lines and the encoder sensor reads these lines. Its job is to convert the rotary motion of the motor into reciprocating motion. If this strip gets dirty or damaged, it will affect the print quality and your print may be crooked and distorted.
In English, this technology is called RFID, and it is used in many things, such as transportation and asset management. This system helps companies collect information automatically and quickly identify opportunities that arise in their business.
For example, in printing, using RFID can reduce errors and increase accuracy and efficiency. This system allows you to print and encode RFID labels and tags yourself, ensuring that they are error-free.
Types of encoder tape
In the banner printing machine, we have a sensitive part called the encoder strip sensor, which is very important. These strips are of two types, one is 180LPI Which length? 4200 mm And its width 15 mmOh, another one. 360LPI Which length? 5000 mm And the width is the same. 15 mmE. Depending on your printer, you should choose one.
| Type | Length | Width | Application |
| 180LPI | 420~500cm | 15 mm | Banner printing machine Zar 128, Konica 512, Ecosolvent, etc. |
| 360LPI | 420~500cm | 15 mm | Konica 512i, 1024 and… banner printing machine |
What encoder strip does my banner printing machine have?
- Zar 128 – Konica 512 – Ecosolvent: 180LPI
- Konica 512i: 360LPI
What is the impact of damage to the encoder strip on the performance of the printing machine?
If the encoder strip becomes damaged or dirty, the printer may experience problems. This means that the sensors cannot accurately determine where the print carriage is, which can cause various errors, such as computer errors, or areas of the paper not being printed, or the print becoming messy and checkered. So it is very important to maintain the encoder strip properly to maintain the quality and accuracy of our printing.
Do other devices use encoder strips?
Yes, there are a lot of devices that use this encoder strip. Not only in the printing machines we mentioned earlier, but also in CNC machines, elevators, factory robots, packaging machines, mines, and even presses. These use the encoder strip to accurately understand the speed, location, angle, and direction of movement of rods and axes.
H9730 and H9740 encoder sensors in banner and eco-solvent printing machines
Introduction to encoder sensor
The encoder sensor is a key component in banner and eco-solvent printing machines, whose function is to precisely control the position and movement of the print head. By reading the encoder strip, this component causes the head of the machine to move with micron precision and printing is done without vibration or errors. In fact, the encoder sensor is considered the brain of the machine's positioning.
Two common models in this category are, H9730 and H9740 Both use optical structure and quadrature technology (A/B signal).
Difference between H9730 and H9740 models
The main difference between these two sensors is Encoder bar resolution is:
| Sensor model | Compatible tape resolution | Application type |
|---|---|---|
| H9730 | 180 LPI/DPI | Suitable for economical devices and standard prints |
| H9740 | 360 LPI/DPI | For high-precision and high-resolution devices |
If your machine has a 180LPI encoder strip, you should use the H9730 model, but for 360LPI strips, the H9740 model is the correct choice. Using the wrong model will cause banding, head vibration, and positioning errors.
Difference between "wired" and "wireless" versions
The H9730 and H9740 sensors are available in two types:
- Wired model (With Cable): Comes with a ready-made cable and connector (4 to 6 pins) for direct connection to the main board.
- Wireless model (No Cable): It is only a sensor module and the user needs to install the cable or socket separately.
Both models are identical in terms of performance, but the wired version is faster to install and more resistant to environmental noise.
Technical specifications of the H9730 / H9740 encoder sensor
- Working voltage: 5 volts DC
- Output type: Two digital signals A and B (Quadrature)
- Sensor type: Optical (Infrared Optical Sensor)
- Application: Banner, eco-solvent, UV and roll-to-roll printing machines
- Compatible brands: Allwin, Yaselan, MyJet, Gongzheng, Mutoh and other similar devices
- Output structure: 4 pins (VCC, GND, A, B) or 6 pins on some models
Signs of encoder sensor failure
If your printing device is experiencing the following problems, the possibility of encoder sensor failure is very high:
- Uneven printing lines or head shaking while moving
- Home error or failure to detect head position
- Uneven prints with horizontal bands (Banding)
- Abnormal noise or sudden stoppage of the head
In these cases, first clean the encoder strip with isopropyl alcohol and check the distance between the sensor groove and the strip. If the problem persists, the sensor should be replaced.
Important points when buying and replacing
- Before purchasing, check the resolution of the device's encoder strip.
- Prefer the wired version for faster installation and reduced ambient noise.
- In high-speed or high-resolution models, it is recommended to use sensors with Avago or Omron main heads.
- After replacing the sensor, some devices require recalibration (Encoder Calibration).
What is the encoder base?
Plastic supports installed throughout the printing machine that hold the encoder strip to the machine body.
What is an encoder clamp?
A metal, spring-shaped clamp that is installed at the beginning and end of the banner machine and pulls the encoder strip from both sides to keep it straight.
Frequently Asked Questions
What is the length of the encoder strip?
The length of the encoder strip is 450 centimeters, which is more than the requirements of 320-width banner printing machines.
What is the width of the encoder bar?
The width of the encoder strip is 15 mm.
What does 180 lpi mean?
Encoder tape usually comes in 3 types: 150, 180 and 360 lpi. The most common type used in Konica 512 and Zar 128 machines is the 180 model.
What is the difference between grade 1 and grade 2?
The supply source of each is different, and according to customer reports, the failure rate of grade 2 is higher than grade 1. Of course, this is not the case of 100%, but rather the statements of most customers.
Additional information
| Type | Encoder base, wired encoder sensor, wireless encoder sensor, encoder clamp, 180 encoder strip, 360 encoder strip |
|---|---|
| Model | Grade 1, Grade 2 |
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