Multifunctional devices are complex.digital mechanisms for printing information, obtaining carrier prints and their digital copies. The 3 in 1 devices fit tightly into modern life because of their convenience and good performance. Naturally, they are subject to various failures - a large number of mechanisms and details imply the presence of many faults.
Of course, if you have the necessary parts and the right approach to repairing the multifunction printer, you can cope with a breakdown in most service centers.
Common MFP faults
First, consider a few basic faults:
- the device does not turn on;
- The copier produces a white sheet;
- paper stop (jam) inside;
- heard the rattle when typing;
- does not work in the mode of the copier and the scanner;
- the printed image is blurred;
- the printer does not pick up the paper;
- I can not install the driver;
- the computer "does not see" the device.
Let us deal with the causes and methods of elimination of some malfunctions, as well as the peculiarities of the repair of an MFP by the master of the service center.
MFP does not turn on
Repair of Epson Stylus TX117 MFP, in whichThe power supply does not light up the screen. Also, there is no reaction to pressing the buttons. Possible causes of a malfunction may be a power supply or a short circuit in one of the nodes.
To begin, we carry out device diagnostics.Turn the power switch to the "off" position and wait at least 30 seconds. We turn on the device not through a power filter, but directly into a wall outlet. Then we proceed step by step and turn on the device after each item:
- extract cartridges / ink tanks;
- remove the print head.
Before each action, turn off the power and press the power button to discharge the capacitor in the power supply, so as not to aggravate the situation and burn any module.
- We check if the carriage contact pads are not filled with ink. This may cause a short circuit.
- Measure the voltage of the control board by disconnecting the connector.
- Disconnect all plugs and cables from the control board, leaving only the control unit cable with the power button and the power supply connector.
- If the device is turned on, but gives any errors, then the problem is in one of the modules.
- In turn, we connect all connectors and cables to detect a faulty module.
- When the device does not turn on after connecting the next connector, the defective module that is connected last is detected.
- More often than others, a short circuit is detected in the motors moving the carriage or pulling the paper.
After the defective part, mechanism, or module is identified, replace or repair the defect.
Xerox produces a white sheet
Consider repairing the HP LJ M1132 MFP, which, when copied and scanned, gives clean sheets.
To begin, start the copy mode with the openscanner cover. When the scanner ruler reaches approximately the middle of the glass, remove the power supply cord from the connector. After the ruler stops, we wait 5-7 seconds and connect the device power back. When the ruler returns to the home position, put the sheet on the tablet and start the Xerox mode. Copy turned out.
Another option in case of this fault -clear the device memory. To do this, turn off the device, press and hold the down arrow and cancel buttons simultaneously. Without releasing the buttons, turn on the device. Checking the scanner - everything works.
Paper stop (jam)
Consider repairing the Canon MF4018 i-SENSYS MFP,which gives the message “Jammed paper” on the screen, and the sheet does not come out immediately, but after several missed copies. Usually the problem lies in one of the paper jam sensors. It either came out of the mounting grooves when the jammed paper was forcibly removed, or the sensor spring was lost.
It is necessary to disassemble the device and carefullyinspect the sensors. We inspect the first part, which is located below, for the presence of faults. When inspecting two sensors that are in the oven, a flown spring of the right sensor was found.
As with this breakdown, the problem can be in any jam sensor - inspect them all, check the fasteners and the presence of springs.
Rattle is heard when printing
Consider the repair of the Samsung SCX-4500 MFP, when you hear a loud crash and rattle when plugged into the network.
First you need to exclude the option of jamming the cartridge. To do this, remove it and check the operation of the device. The crackle did not disappear.
Most likely, the problem lies in the stove.Disconnect the device from the power supply and disassemble it to remove the part. A malfunction was detected - the fusing unit on the stove, the transmission gears and the fastening gears have reached their useful life. Replacement is required.
The printer does not pick up or feed paper.
How to repair HP LaserJet Pro MFPM1536dnf, which does not feed the loaded paper, and a message appears on the control panel about the absence of paper? The problem may be in the paper grab. But in some cases, the problem can be solved by dropping the device settings.
Для этого на задней панели включенного в сеть the device we take out the power cable from the connector. Then remove the cable from the outlet. We wait 15 seconds. Again, connect the cable to the power supply and to the device. Push the power button. We load several sheets into the paper feed tray. We are trying to print the page directly from the control panel to find out if the problem has been fixed.
If the problem persists, then the next step is to clean the rollers. They are contaminated by the printer due to the accumulation of paper dust, fibers and other debris. For the implementation of cleaning will need:
- a piece of lint-free cloth;
- cotton buds;
- pure water (distilled or bottled).
Turn off the device from the network. We take out the cartridge and wipe the visible rollers with a slightly damp cloth. Remove dirt and debris from the entire surface of the rollers.
Check the status of the device’s flow protection. Slightly with a wet cotton swab clean it.
In case the actions with cleaning and resetting the settings did not eliminate the faults, we replace the rollers.
With the breakdown of such a complex mechanism as an MFP,We recommend that you contact the service center specialists and not engage in self-treatment. Do-it-yourself repairs to the multifunctional device may end up exacerbating the problem and ultimately turning to repair specialists.
