10. Routine Maintenance

10.1. Cleaning the Printer

| Note: | • Please use mild detergents.

Please clean the printer in accordance with the following steps:

1. Turn off the main power switch and unplug the power cord and USB cable.

2. Use a soft cloth to wipe the outside of the printer clean.

3. Open the upper cover and take out the laser toner cartridge.

| Note: | • When removing the laser toner cartridge, put the cartridge in a protective bag or wrap it with thick paper to avoid direct light damaging the photosensitive drum.

4. Clean the inside of the printer by using a dry and lint-free cloth to gently wipe the shaded area as shown in the figure below.

10.2. Maintenance of Laser Toner Cartridge

10.2.1. Use and Maintenance of Laser Toner Cartridge

For better print quality, please use the original Pantum laser toner cartridge.

| Note: | when using the laser toner cartridge, please pay attention to the following: • Unless used immediately, otherwise, do not remove the laser toner cartridge from the package. Do not attempt to refill the laser toner cartridge without authorization. Otherwise, the resulting damage is not included in the printer warranty. • Please store the laser toner cartridge under a cool and dry environment. • Toner inside the laser toner cartridge is combustible. Please do not put the laser toner cartridge near any source of ignition, so as to avoid causing a fire. • When removing or disassembling the laser toner cartridge, please pay attention to the toner leakage problem. In case of the toner leakage resulting in that the toner contacts with your skin or splashes into your eyes and mouth, please immediately wash with clear water, and consult a doctor immediately if you feel unwell. • When placing the laser toner cartridge, please keep it away from the area reachable by children.

10.2.2. Service Life of Laser Toner Cartridge

Service life of the laser toner cartridge depends on the amount of toner that print jobs require.

When the printer LED indicator shows the status in the following figure, it indicates that the laser toner cartridge life has expired and needs to be replaced.

10.2.3. Replace Laser Toner Cartridge

| Note: | before replacing the laser toner cartridge, please pay attention to the following: • The laser toner cartridge surface may contain toner. Please remove it carefully to avoid spilling. • Put the removed laser toner cartridge on a piece of paper to avoid the toner from accidently spilling. • After removing the protective cover, please immediately install the laser toner cartridge into the printer, so as to avoid photosensitive drum damage caused by exposing to too much direct sunlight or indoor light. • While installing the laser toner cartridge, do not touch the surface of the photosensitive drum so as not to scratch it.

Replacement steps are as follows:

1. Open the upper cover, and remove the empty laser toner cartridge along the guides.

2. Open the package of a new laser toner cartridge, hold the handle of the cartridge and gently shake around 5-6 times, so as to make the toner evenly distributed inside the cartridge.

3. Remove the protective cover, and put the laser toner cartridge into the printer along the guides

| Note: | • Check whether there is any seal on it before installing the laser toner cartridge into the printer; if there is any, please tear off the seal and then install the cartridge.

4. Close the upper cover tightly