Solve the general failure of the raid without asking for help

There are many types of laser printers, and it has only been used in a large number of applications in China in recent years. In particular, imported laser printers and lack of drawings and other data have brought certain difficulties to maintenance. Most users and maintenance personnel can only fumble with maintenance and summary. experience.

Although there are many kinds of laser printers, their working principles and consumables are similar, so most maintenance methods and troubleshooting methods are applicable to all laser printers. The common faults of the commonly used laser printers are described below.

Symptoms: The font does not match.

Possible Causes:

1, did not install the driver;
2. The font is not loaded with memory.

Maintenance method:

1. Run SETUP to install the driver and reinstall it;
2, run the print driver.

Symptom: The printer reacts especially.

Possible Causes:

1, cable failure;
2, the wrong model of the printer;
3, the top cover, back cover is not closed;
4, after removing the paper is not set;
5. The print sharer is not connected.

Maintenance method:

1, repair or replace the new cable;
2, re-select the correct printer model;
3, close all the cover plates;
4, press the panel button after removing the paper, close the top cover;
5, check the print sharing device access cable, make it firmly connected.

Symptom: Error error light is on.

Possible Causes:

1. The cover is not closed;
2. The toner cartridge is not installed.

Maintenance method:

1. Close the cover;
2. Install the toner cartridge.

Symptom: The Error light flashes.

Possible reason: The memory area is wrong.

Maintenance methods: reduce the content of each page, re-typed printing.

Symptom: The paper light is on or flashing.

Possible Causes:

1, paper box without paper;
2, folder paper.

Maintenance method:

1. Reload paper;
2, remove the paper.

Symptom: The ready light is on.

Possible reason: There is data in the memory.

Overhaul instructions: Print the remaining data.

Symptom: The indicator light is all on.

Possible cause: The hardware is faulty.

Maintenance method: After power off for 15 minutes and then self-test, if the light is still on, then overhaul the printer.

Symptom: The lights are completely off.

Possible causes: Smart power saving mode.

Maintenance method: Press READY, if not, then check the printer.

Symptoms: Paper jams.

Possible Causes:

1. The printing paper is out of specification;
2. There are foreign objects in the paper feeding path;
3, paper feeding motor, paper roll operation is not normal;
4, the paper sensor is out of order;
5, the relevant control circuit failure.

Maintenance method:

1. Replace the paper that meets the required specifications;
2. Remove foreign materials such as paper scraps and shreds in the path;
3, check the paper feed motor and paper feed roller;
4, overhaul paper sensor;
5, maintenance related circuits.

Symptom: Error in picking up paper.

Possible Causes:

1, the installation environment is not in place;
2, the use of printing paper does not meet the requirements;
3, the paper channel has foreign objects;
4, the paper feed motor, paper roll operation is not normal;
5, the relevant circuit is faulty.

Maintenance method:

1, should be used in meeting the requirements of the environment;
2, replace the printing paper that meets the requirements;
3, clear foreign matter in the channel;
4, check repair;
5, maintenance related circuits.

Symptoms: often paper.

Possible Causes:

1, the paper does not meet the requirements;
2, too much paper.

Maintenance method:

1, replace the paper;
2. Appropriately reduce children's pages.

Symptoms: Manually often paper.

Possible reason: The paper feeding method is incorrect.

Maintenance method: Feeling can not be drawn out after feeding.

Symptom: The status information is displayed incorrectly.

Possible Causes:

1. Parallel cable does not support bidirectional transmission;
2, cable failure;
3, port configuration error;
4. The system does not support two-way communication.

Maintenance method:

1. Choose a qualified two-way communication cable;
2, replace the new cable;
3, reconfigure the correct port;
4. Replace the interface that supports bidirectional communication (not supported on the network).

Symptom: The remote panel does not work.

Possible cause: The interface is faulty.

Maintenance methods: replace the correct cable, plug in the cable port, correct the configuration port, reduce page capacity, expand memory, exit Windows, and run under DOS.

Symptoms: Help, guides malfunction.

Possible Causes:

1, the display is not VGA;
2, lack of memory;
3, at the same time start HELP and tour guide function

Maintenance method:

1, replace the VGA monitor;
2, expand memory 3, can only run one of HELP or GUIDE