Printer

Description 

Printer is a tool to print all of any posts, documents, that are visible on the display monitor, and others in the computer data including storage. Output devices including printers, called peripherals. 

Several types of printers that are in the market as follows: 

- Letter Quality 

- Dot matrix 

- Thermal printer 

- Ink Jet Printer 

- Laser 

- Plotter 

a. Letter Quality g

Is a printer that can print with a quality such as typewriter writings is so compact and clear. Quality letter type of element to use to print the letters, such as the IBM electric typewriter which uses the ball element. Weakness dad letter quality printer is kecepatanya namely average 

between 8-80 characters per second, but  weakness can not print graphic. 

b. Dot Matrix 

Dot matrix system is formation characters from a number of point-point dot matrix printer have any element that consists of needle-needle so that the ribbon can print on paper. How to print is called impact. The advantages of this printer is printed speeds reaching 400 cps, which is five times faster and can print graphic, but the letter does not quality letter as well as Quality. The weakness of the way this works is the printer to print from left to right, then from right to left on the next line, so to print one line of text to be slow. 

c. Thermal Printer 

Quality thermal printer dot matrix with the same principles as it works the same, only thermal printer uses heat and not pressure or impact. Advantage of the thermal printer is more. quiet (not noisy) and has a high speed that is 6 pages per minute, weakness is a need to use special paper. 

d. Ink-jet 

Ink jet printers use ink. 'spraying' using electricity load more So quiet and have a high speed that is up to 270 cps, and can equipped with colored ink. weakness ink jet printers have to use special paper so the print must dry before 

color other save it. 

e. Laser Printer 

How it works is almost the same printer with photocopy machines, photocopy machines difference on shadow focused on a cylinder that rotates while the laser printer shadow created with a point per point by Semiconductor laser. The quality of any posts laser letter with almost same quality as 1cm available dad 750 dots. Print speed is 8 pages / minute weakness expensive. 

f. Interface - 

The printer can be connected to the computer with a serial RS-232C or parallel with Centronic. But because the technology has not been the default printer and the computer to run the printer with a different type of computer then you can use the software. 

g. Plotter 

Plotter is an output of the equipment that is used to draw a graph, and others. The difference with the printer using the digital system, which is analog. An example is the chart plotter ECG (Electro Cardiograph) tool that is used for the potential of the heart beat, or seismograph needle to record the earth shaking. Plotter can draw a graph on paper, plastic, or the transparent plastic for use in projectors. 

The Search method 

  

Flow Chart to detect damage to the dot matrix printer 

Description: 

1. Power Supply series 

AC PS series consists of a fuse, FET, and a small transistor survive. 

circuit PS output consists of a DC capacitor electrolyte, Dioda with refrigerator 

2. Paper Sensor 

Paper sensor detects the presence of paper in the printer shelf. The form of limit switch 

3. Controller series 

IC consists of a roller drive motor (SLA 7022) and the driving head. Check the fuse and sensor head (the limit switch to limit head movement to the left) 

4. Motherboard 

One important component is the BIOS printer. If the test print does not work, the BIOS does not work properly 

Printer Care 

The average printer has a 4-5 year durability during normal use. Every 3 months are required to clean the printer as a whole portion of the Disconnect power, remove and clean the printer with a soft brush and vacuum cleaner with a small pipe try place the printer on a safe place and clean away 

of liquid, grease, dust, heat source (including sun safe temperature is 25-35 centigrade degrees C) and electrical machinery 

Troubleshooting the Printer 

Use paper that is not appropriate can result in poor printing, paper is jammed Wire corona and rollers become dirty, so you should be cleared often. At fussing roller, the temperature can reach 200 degrees centigrade by the paper that do not use ink. 1 letter of the head is sensitive to heat. Some of the adhesive on the label or the envelope tends to melt, at high temperatures, so that bottlenecks cause damage to paper and printer components. Overhead transparency film can be used throughout the criteria according to the size and temperature durability. 

  Troubleshooting the Printer Laser Jet 

No. The cause of the problem / solution 

1. Areas along the overcast page - Lower density key paper; 

- Replace the toner catridge; 

- Paper is too moist 

2. Drops, scratches from the overcast area - Paper is too moist 

- Wire mover corona need to be cleaned 

3. Scratches on the front of the black paper - Clean and replace the layer of fusing roller 

- Clean the corona wire 

4. Black horizontal line - Clean the roller mover paper path 

- Replace / clean most cleaning roller fusing 

- Replace the toner catridge 

- Change the type of paper used feeder

5. White vertical scratches - Clean the corona wire mover

- Replace the toner catridge 

- Clean / replace the layer of fusing roller cleaning 

6. Black stains on the back of the paper - Clean the paper path and roller feeder

- Clean the corona wire mover

- Clean the bottom of the toner cartridge 

- Clean / replace the cleaning roller coating fussing 

7. along the right side - Clean the primary corona wire 

- Clean the belt separator 

8. Marks are repeated in regular intervals - Clean all the roller in the paper path 

- Replace the toner cartridge 

  Troubleshooting Ink jet Printer On 

No. The cause of the problem / solution 

1. As usual, but the printer does not have the results printed - Perform cleaning procedures 

2. printer print the results but the longer the mold is lost or blurred - Make the process of cleaning 

- There are possibilities ink cartridge has been exhausted 

3. Printed form of the resulting characters are cracked / blur Media paper that is used that does not have any quality fine. Type of paper used can be replaced by paper that has fine fiber with 60-80 grams of weight 

4. If there is mold on the white line in the middle of the printed characters or not there is a perfect black point around which to create the mold Make dirty cleaning procedures 

5. The printer does not print a character known and not in accordance with the desired printer driver is not suitable or not suitable, so it must be tailored to the specific type of printer 

6. Error indicator lights continuously on for the printer type that does not use auto sheet feeder, place the paper in the printer with the attention to the left side of the paper in the printer. To have the type of auto sheet feeder set paper size adjustment according to the paper 

7. Printer interesting batch of paper at a time when the batch of paper put on the auto sheet feeder make sure that there is no paper attached to one another and the number of piles of paper does not amount to more than ditentukanHindari in a stack of paper there is a different paper size. 

Note: Turn off the printer before making repairs 

  Troubleshooting Dot Matrix Printer 

Compared to other types of printers, dot matrix printer including a printer banting resistant and easy to operate. Damage that often occurs, usually on the printhead. In the normal usage, printhead can print up to 150-200 million wallop. Use a printer ribbon less good damage and can accelerate corrosion on printnead. Kornpatibilitas of a printer is also important to consider, because sometimes the software does not recognize a brand printers