Method 1: After initialization, select Settings-Service Options-Select Restore Factory Settings to restore factory settings.

Method 2: It is a cold reset method. Turn off the printer first, then press and hold the "OK+ Cancel" key of the printer at the same time, and then turn on the printer to restore the factory settings.

Hewlett-Packard Development Company (L.P.), headquartered in Palo Alto, California, USA, is a global information technology company, mainly engaged in printers, digital images, software, computers and information services. Hewlett-Packard (HP) is one of the largest information technology (IT) companies in the world, founded in 1939 and headquartered in Palo Alto, California, USA. HP has three business groups: Information Products Group, Printing and Imaging Systems Group and Enterprise Computing and Professional Services Group.

China Hewlett-Packard Co., Ltd. is headquartered in Beijing, with branches in Shanghai, Guangzhou, Shenyang, Nanjing, Xi, Wuhan, Chengdu and Shenzhen. Hewlett-Packard Company of China has a global call center in Dalian and a production plant in Chongqing.

On September 4th, 2000/kloc-0, it announced the acquisition of Compaq, a famous American computer company, and completed the acquisition on May 3rd, 2002.

On 20 1416/0, HP announced that it would split the company into two independent world top 50 listed companies. The two new companies were named Hewlett-Packard Enterprise and Hewlett-Packard Company. The former is engaged in business-oriented servers and data storage equipment, software and services, while the latter is engaged in personal computers and printers.