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The printer is already a necessary equipment for our modern office, which can be said that its use greatly reduces our labor intensity, improves work efficiency, making the office environment easier. However, due to various reasons, the printer often has such or such faults after using a period of time. Here, the maintenance method and skills of the ten faults that have occurred frequently from the printer will be introduced to everyone. I hope to help everyone use and repair the printer. .
First, the printer outputs blank paper
For needle printers, most of the reasons why the print paper blank is due to the dryness of the ribbon ink, the ribbon is broken, the printhead is damaged, etc. should be replaced in time; for the inkjet printer, there are mostly the failure of the printing blank It is due to the nozzle clogging, the ink cartridge does not have ink, etc., should be cleaned or replaced with the ink cartridge; for the laser printer, the cause of this type of failure may be that the developing roller does not suck the toner (the DC bias of the developing roller is not added), It may be that the photosensitive drum is not grounded, so that the negative charge cannot be released, the laser beam cannot work on the photosensitive drum.
In addition, the photosensitive drum of the laser printer does not rotate, and there is no image to generate and transmit it to the paper. Disconnect the printer, remove the toner cartridge, open the slot on the lid, and reload the machine after the non-photosensitive portion of the photosensitive drum. After running for a while, then remove the check mark to move, you can judge whether the photosensitive drum is working properly. If the toner does not supply or the laser beam is blocked, print blank paper will also appear. Therefore, it should be checked whether the toner is used, whether the ink cartridge is properly loaded, and whether the sealing tape has been removed or the laser irradiation channel has a shield. It should be noted that it must be turned off when checking because the laser beam may damage the operator's eyes.
Second, the printing paper output is black
For needle printers, the cause of this fault is that ribbon hair removal, too much ink on the ribbon, dirty tape, and poor ribbon quality and push rod position is too close, and should first adjust the push position first. If the fault cannot be excluded, then replace the ribbon, cleaning the printhead, usually eliminating the failure; for the inkjet printer, you should check if the nozzle is damaged, the ink pipe is broken, whether the model number of the ink is normal, etc., most of the laser printer It is due to the failure of corona discharge wire or the control circuit, so that the laser is emitted, resulting in a total of printout content. Therefore, it should be checked whether the plunge discharge wire has been disconnected or the corona high pressure is present, and whether the beam detector in the laser beam path is normal.
Third, print characters are incomplete or character is not clear
For inkjet printers, there may be two reasons, the ink cartridge ink, the printing machine is not used in need or by daylight, resulting in a nozzle. The solution is to change the new cartridge or ink, if the ink cartridge is not used, it can be concluded that the nozzle clogging: Remove the ink cartridge (the printer is not integrated with the ink cartridge nozzle, you need to remove the nozzle), put the nozzle in warm water, soak it. Note It must not be immersed in water in the water, otherwise the consequences are unimaginable.
For needle printers, there may be the following reasons: the printing tone is used for too long; the print head is not cleaned for a long time, the dirt is too much; the printhead is broken; the printhead drive circuit has faults. The solution is to adjust the spacing between the printhead and the print roller. If the fault cannot be excluded, you can change the new ribbon. If you can't still do it, you need to clean the printhead. The method is to remove the two fixed screws on the printhead, take the print head, remove the printhead with a needle or hook, and the lack of dirt, generally accumulated ribbon fibers, and then print The back of the head is visible to a few drops of instrument oil to remove some dirt, not equipped with a few pieces of paper, then install the ribbon, so that the problem can be solved, if it is a print head Needle or drive circuit issues can only replace the print pin or drive.
Fourth, print the imprint
For needle printers, there are mostly the cause of this type of failure, the ribbon ink is dry, the print head break, the push rod position is too far, can be solved with the method of replacing the ribbon and adjust the push rod; for the inkjet printer, The nozzle is blocked, the ink is too dry, the ink model is incorrect, the ink is ink air, the printer operating temperature will cause this fault, to deal with the nozzle, ink box, etc., for the laser printer, when the toner in the toner There is less, the developing voltage is low and the toner sensing effect is poor, and the printing is also caused. At this time, the toner cartridge is removed gently, and if the printing effect is not improved, the ink toner or adjustment of a set of photosensitive switches below the printer toner cartridge to match the photosensitive sensitivity of the toner.
5. When printing, the writing is clear and the other is not clear.
This phenomenon generally appears on a needle printer, the inkjet printer may also occur, but the probability is small, mainly the printhead rail and the print roller do not parallel, resulting in far from the distance. The solution is to adjust the spacing of the printhead rail and the print roller to make it parallel. The specific practice is to loosen the regulatory sheets on both sides of the printhead rail, counterclockwise transfer the adjustment piece to reduce the gap, and finally adjust the printhead rail to the print roller to solve the problem. However, pay attention to adjust the timing direction, you can gradually adjust, more print a few times.
Sixth, repeated stains on the printing paper
Most of the dirty failure of the needle printer repeatedly due to the excessive ribbula hair removal or excessive ink, the replacement tape cartridge can be excluded; the inkjet printer repeats dirty due to the ink cartridge or ink ink.; When the nozzle performance is poor, the ejected ink does not be very difficult to disconnect and in a balanced state, and there will be a phenomenon in which the laser printer has certain regularity, because a piece of paper passes the printer. 12 rolls in the machine are turned more than one lap, the maximum photosensitive drum turns 2 ~ 3 laps, the paper feed roller may turn 10 laps, when the lattice is intervals, may be dirty or Damaged rolls caused.
Seven, the print head is blocked, stop the length or vibrate at the original
This is mainly because the printhead rail will become dry, the printhead will be blocked, to a certain extent, to stop the printing, if it is not dealt with in time, can burn the driving circuit when it is severe. The solution is to apply a few droplet oils on the print rail to move the printhead to make it evenly distributed. After rebooting, if there is also a phenomenon, it may be that the drive circuit is burning, and it is necessary to get the maintenance department.
Eight, the printer does not print
There are many types of failure caused by printers, there are printers, and there are computers. The following introductions are given:
1. Check if the printer is in a online status. There is a light indicating online status next to most printers, and the online light should be in a constant bright state under normal circumstances. If the indicator is not bright or a flashing state, the online is not normal, the focus checks if the printer is turned on, whether the printer power switch is opened, whether the printer cable is properly connected. If the online indicator is normal, turn off the printer, then open, see if the print test page is normal.
2. Check if the printer has been set to the default printer. Click "Start / Set / Printer" to check if there is a black hook on the currently used printer icon, and then set the printer to the default printer. If the printer is not used in the Printer window, click the "Add Printer" icon and then install it according to the prompt.
3. Check if the current printer is set to pause print. The method is to use the right-click the printer icon in the "Printer" window, check if there is a small hook on the "Pause Print" option in the drop-down menu that appears. If "Pause Print" is selected, please cancel this option.
4. In "Notepad", type some text, then click Print on the File menu. If you can print the test document, you will have a problem with the printed printers that use it, focus on whether WPS, CCED, WORD, or other applications have selected the correct printer. If it is a print file generated by the application, please check the printout generated by the application. is it right or not. 5. Check if the residual space of the computer's hard drive is too small. If the available space of the hard disk is less than 10MB, it cannot be printed. In "My Computer", use the right-click hard disk icon to install Windows, select "Properties", check the hard disk space in the General tab, if the hard disk The remaining space is less than 10MB, and the "Recycle Bin" must be emptied to delete the temporary file, expire, or no longer used files on the hard disk to release more space.
6. Check if the printer driver is appropriate and if 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 if the printer port setting is correct, the most commonly used port is "LPT1 (printer port)", but some The printer requires other ports; if you cannot print a large file, you should check the "timeout setting" value of the Timeout Settings section, this option is only valid for the printer connected directly to your computer, and it is invalid when using the network printer.
7. Check if the printer port is opened in the BIOS settings of your computer. The printer is set to "enable" in the BIOS, and some printers do not support the ECP type print port signal, and the print port should be set to "Normal, ECP EPP" mode.
8. Check if there is a virus in your computer, if you need to use anti-virus software to make anti-virus.
9. Check if the printer driver is corrupt. You can use the printer icon using the printer icon, select Delete, then double-click Add Printer to reinstall the printer driver.
10. Printing machine paper cartridge paperless or paper jam, printer toner cartridge, ribbon or toner cartridge is effective, if it is invalid, it cannot be printed.
Nine, printer card paper or not paper
The most common fault of the printer is jam. When this failure occurs, the indicator light on the operation panel is lit and a alarm signal is issued to the host. There are many reasons for such a fault, such as a debris in the paper output path, paper feed rolls, etc., the paper cassette, the sensor failure, etc. Remove the card of the card, but to note that the paper must be taken in the paper feed direction, and no knob is rotated in the reverse direction.
If the paper jam is frequent, it is necessary to check the paper feed channel, clear the debris of the output path, and the front edge of the paper is just on the top of the metal plate. Check if the paper roller is worn or the spring is loose, the pressure is not enough, that is, the paper cannot be sent to the machine. The paper is worn, and the emergency treatment can be carried out in a wound blanket when there is no way to replace it. After entangle the rubber band, increase the friction of the picking paper, which can return the paper to normal. In addition, the paper tray is installed abnormal, the paper quality is not good (too thin, thicker, moisture), will also cause paper jams or failures that cannot be taken.
Ten, printing chaos characters
Whether it is a needle printer, an inkjet printer is still a laser printer, which is mostly due to the damage of the print interface circuit damage or the damage of the master microcontroller, and the actual maintenance is found, the failure of the printer interface circuit is more common, due to the interface circuit Power supply with a micro-power supply, once the interface is electrically static, it is easy to break down the interface chip, and generally replace the interface chip, this type of failure can be excluded. In addition, this phenomenon does not have the correct load of the printer.
