Printer common faults and solutions

In real life, companies and units are mostly equipped with printers. Printer is our modern office equipment, it has greatly reduced the use of our labor intensity, improve the efficiency. But for one reason or another, the printer in the use of a period of time often appear we do not want to see the fault, the following for a number of frequent printer troubleshooting methods and solutions introduced to everyone, I hope to be able to use and repair the printer to help.

One, the printer output blank paper

For the stylus printer, the reason for the paper blank is mostly due to the dry color ink, ribbon break, print head damage, etc., should be replaced in a timely manner or maintenance of print head; For inkjet printers, caused by the failure of printing blanks are mostly due to nozzle jams, ink cartridges, etc., should clean the nozzle or replace ink cartridges; for laser printers , the cause of this type of failure may be that the developer roller is not sucked to the toner (the development roller DC bias is not added), it may also be the photoconductor drum is not grounded, so that the negative charge can not be released, the laser beam can not be in the photosensitive drum function.

In addition, the laser printer's photoconductor drum does not rotate, there will be no image generated and uploaded to the paper. Disconnect the power from the printer, remove the toner cartridge, open the notch on the lid of the box, and then reload the machine with a mark on the photosensitive part of the photoconductor drum. Boot run for a while, and then remove the check mark is moved, you can determine whether the photoconductor drum is working properly. If the toner can not be normal supply or laser beam is blocked, there will be the phenomenon of printing blank paper. Therefore, should check whether the toner is used up, the ink cartridge is properly installed in the machine, sealing tape has been removed or laser irradiation on the channel whether there is shelter. It is important to note that the power must be turned off when checking, as the laser beam may damage the operator's eyes.

Second, the printing paper output black

For the stylus printer, the cause of the failure is color band hair removal, color tape on too much ink, print head dirty, color band quality and put too close to the position, overhaul should first adjust the position of putt, such as failure can not be excluded, and then replace the ribbon, cleaning the print head, generally can be ruled out; for inkjet printers, Should focus on whether the nozzle is damaged, ink pipe is broken, ink model is normal, etc. for laser printers, most of the corona discharge wire failure or control circuit failure, so that the laser has been launched, resulting in black print output content. Therefore, it is necessary to check whether the corona discharge wire has been disconnected or whether the corona high pressure exists, and whether the beam detector in the laser beam path is working properly.

Third, the printed characters are not complete or the characters are not clear

For inkjet printers, there may be two reasons, ink cartridges, printer for a long time without or exposure to direct sunlight caused the nozzle plug. The solution is to change the new cartridge or ink, if the cartridge is not used up, you can conclude that the nozzle is blocked: Remove the ink cartridge (for ink cartridge nozzle is not one printer, need to remove the nozzle), put the nozzle in warm water soak for a while, pay attention to the circuit board must not be part of the immersion, otherwise disastrous consequences.

For stylus printers, there may be several reasons: the printing ribbon is used too long, the printhead has not been cleaned for a long time, too much dirt, there is a broken needle in the print head, and a faulty print head drive circuit. The solution is to adjust the print head and print roll between the spacing, failure can not be ruled out, you may change the new ribbon, if not, you need to clean the print head. The method is: Remove the two (computer does not sound) a fixed screw, remove the print head, with a needle or small hook to clear the print head, after the inclusion of the dirty, is generally a long time to accumulate the ribbon fiber, and then in the back of the print head to see the needle drop a few drops of instrument oil, to remove some dirty, do not install color belt empty dozen pieces of paper, Then put the color belt, so the problem can be solved basically, if it is the print head broken needle or drive circuit problems, you can only replace the print needle or drive tube.

Four, printing handwriting is light

For the stylus printer, the cause of this type of failure is mostly ink drying, the print head breaks the needle, the push rod position adjusts too far, may use the replacement color belt and the adjustment putter method to solve; for inkjet printers, nozzle blockage, ink dry, ink model is incorrect, inking pipe into the air, Printer operating temperature is too high will cause this fault, should be the nozzle, ink box, etc. for testing and maintenance; For laser printers, when the toner cartridge in less toner, the development of the voltage of the development roller and ink photosensitive effect is poor, will also result in the printing of weak handwriting. At this point, remove the toner cartridge gently shaking, if the printing effect does not improve, you should replace the toner cartridge or adjust the printer toner cartridge under a group of photosensitive switches, so that the sensitivity of the ink powder and matching.

Five, the writing side clear while the other side is not clear

This phenomenon generally appears in the stylus printer, inkjet printer may also appear, but the probability is small, mainly the print head guide and the print roller is not parallel, resulting in two (computer no sound) distance is nearly caused by. The workaround is to adjust the spacing between the print head guides and the print rollers to make them parallel. The specific method is: Loosen the print head guide two (computer does not sound) side of the adjustment, counterclockwise rotation adjustment plate to reduce the gap, and finally the print Head Guide and print roll adjustment to parallel to solve the problem. However, pay attention to adjust the direction of Si Cho, you can gradually adjust, more than a few printing.

Repeat stains on the printed paper

Needle printer repeated dirty fault is mostly due to the color of hair removal or excessive ink caused, replace the color with the box can be excluded; ink-jet printer repeated dirty is due to ink box or ink tube leaking ink; When the nozzle performance is poor, the ink and the remaining ink can not be very good disconnect and in a balanced state, there will be a phenomenon of ink leakage; and laser printers appear this kind of phenomenon has certain regularity, as a piece of paper through the printer, the machine's 12 rolls over more than one lap, the largest photosensitive drum turned 2~3 circle, the feed roller may be turned over 10 laps, when the paper appeared at intervals equal stains, may be caused by dirty or damaged rolls.

Seven, the print head movement is obstructed, stops is ringing or shakes in the place

This is mainly due to the printing Head guide for a long time sliding will become dry, print head will be blocked when moving, to a certain extent will make printing stop, such as not timely treatment, serious can burn out the driving circuit. The solution is to apply a few drops of meter oil to the print guide and move the print head back and forth to make it evenly distributed. Reboot, if there is a blocking phenomenon, it is possible that the drive circuit burned out, need to get maintenance department.

Eight, the printer does not print

Causes the printer does not print the breakdown reason to have many kinds, has the printer aspect, also has the computer aspect. The following are described separately:

1. Check to see if the printer is online. On most printers there is a light next to the online button that indicates the status of the line, and the online light is normally in illuminated steady state. If the LED is not lit or blinking, the online is not working properly, focus on whether the printer is plugged in, the printer power switch is turned on, and the printer cable is connected properly. If the online indicator is normal, turn off the printer and then open it to see if the Print test page is normal.

2. Check to see if the printer is set as the default printer. Click Start/Set/printer to check if there is a small black hook on the currently used printer icon, and then set the printer as the default printer. 　　If the printer is not in use in the Printers window, tap the Add Printer icon, and then follow the prompts to install it. 3. Check if the current printer is set to suspend printing. The method is to right-click the printer icon in the Printers window and check for a small hook on the pause print option in the Drop-down menu that appears, and cancel this option if Pause printing is selected.

4. Type some text in Notepad, and then click Print on the File menu. If you can print a test document, you have a problem with the print program you are using, focusing on whether WPS, cced, Word, or other applications have the correct printer selected, or if the application-generated print file is correct, check that your application generates the printout.

5. Check the computer's hard disk space is too small. If the hard disk has less than 10MB of free space, it cannot print. The check method is to right-click the hard drive icon that installs Windows in My Computer, select Properties, check hard disk space on the General tab, and empty the Recycle Bin if the hard disk space is less than 10MB. Remove temporary files, expired, or no longer used files on your hard disk to free up more space.

6. Check that the printer driver is appropriate and that the print configuration is correct. Check the following in the details option in the Printer Properties window: In the print to the following Port selection box, check that the printer port settings are correct, the most commonly used port is "LPT1 (printer Port)", but some printers require a different port; If you can't print a large file, 　　You should focus on checking the timeout setting values for the Timeout settings section, which is only valid for printers that are directly connected to your computer, and is not available when you use a network printer. 7. Check the computer's BIOS settings to see if the printer port is open. The printer usage port in the BIOS should be set to Enable, some printers do not support ECP type print port signals, and the print port should be set to Normal, Ecp+epp mode.

8. Check whether there is a virus in the computer, if you need to use anti-virus software for antivirus.

9. Check to see if the printer driver is corrupted. You can reinstall the printer driver by right-clicking the printer icon, selecting Delete, and then double-clicking Add Printer.

10. The printer into the paper tray paperless or paper jam, printer toner cartridge, ribbon or toner cartridge is valid, such as invalid, you can not print.

Nine, the printer paper jam or can't walk paper

The most common problem with a printer is a paper jam. When this failure occurs, the operator panel lights up and emits an alarm signal to the host. There are many reasons for this failure, such as sundries in the paper output path, paper roller and other parts of the rotation failure, paper tray, sensor failure, such as to eliminate the fault of the method is very simple, just open the cover, remove the card can be, but note that you must press the direction of the paper to get paper, can not turn any knob in the opposite direction.

If you often jam, you need to check the Feed channel, clear the output path of debris, the front edge of the paper is just above the metal plate. Check whether the paper roller wear or spring loose, not enough pressure, that is, the paper can not be fed into the machine. Paper roll wear, can not be replaced for a while, can be wound rubber band method for emergency treatment. After winding the rubber band, the friction of rubbing paper is increased, and the paper can return to normal. In addition, the installation of paper tray is not normal, paper quality is not good (too thin, too thick, damp), will also cause paper jam or can not pick up the fault.

Ten, print appear disorderly character

Whether it's a stylus printer, inkjet printer or laser printer garbled phenomenon, mostly due to the printing interface circuit damage or the main control of the SCM damage, and the actual overhaul found that the printer interface circuit damage is more common, because the interface circuit using micro-power supply, once the interface charged plug produced instantaneous high voltage electrostatic , it is very easy to breakdown interface chip, generally as long as the replacement of the interface chip, this type of failure can be excluded. In addition, the font is not properly loaded into the printer can also occur this phenomenon.