If the tray happens to be positioned in the middle of the printer, gently slide it toward the right side. Be very careful: when moving the carriage, never touch the printhead latch, as accidentally opening it can damage the ink supply system.
HO打印机纸箱怎么打开？
Take a flashlight and shine it through the input tray opening to check whether any paper fragments are still stuck inside the printer and whether more paper jams might occur. If paper fragments remain, carefully remove all of the paper and any foreign objects you find.
First, start by closing the output tray extension and pushing the output tray back into the printer. After that, open the outer cover door, and then open the printhead inspection door to reveal the internal components.
When everything is finished, close the printhead access door first, and then close the outer cover door. After that, pull out the output tray and extend the output tray extension board so you can continue working.
Finally, connect the power cord to the back of the printer and start the device. Once the printer finishes its warm-up process, try printing a test page to make sure everything is working properly.