Service Manual
Page 130
... a hole in each of the toner cartridge colors) prints. Turn the product on. 2. An engine test page (horizontal lines in the right-side cover. 3. Use a fine-point tool, (for troubleshooting Engine diagnostics Engine test button 1. Figure 2-1 Engine test button location Diagrams Plug/jack locations 1 Network port (HP LaserJet Pro 300 color M351a, HP LaserJet Pro 300 color M351dw, and HP LaserJet Pro 300 color M351dn models only) 2 Hi...
... a hole in each of the toner cartridge colors) prints. Turn the product on. 2. An engine test page (horizontal lines in the right-side cover. 3. Use a fine-point tool, (for troubleshooting Engine diagnostics Engine test button 1. Figure 2-1 Engine test button location Diagrams Plug/jack locations 1 Network port (HP LaserJet Pro 300 color M351a, HP LaserJet Pro 300 color M351dw, and HP LaserJet Pro 300 color M351dn models only) 2 Hi...