HP LaserJet Enterprise P3015 Service Manual - Page 6

Image formation process 27 Latent-image formation stage 28 Primary charging 28 Laser beam exposure 28 Developing stage 29 Print cartridge 29 Transfer stage 30 Fusing stage 30 Cleaning stage 31 Toner detection ...32 Pickup, feed, and delivery system ...33 Paper trays ...33 Photo sensors and switches 34 Solenoids and clutches ...36 Tray 1 or Tray 2 ...38 Pickup and feed unit ...38 Cassette paper size detection/cassette paper detection 38 Cassette pickup 38 Tray 1 paper pickup ...38 Paper pickup and feed ...39 Jam detection ...40 Additional tray ...41 Tray driver PCA ...41 Paper pickup and feed ...42 Media level and size detection 43 Jam detection ...43 2 Removal and replacement Removal and replacement strategy 46 General cautions during removal and replacement 46 Electrostatic discharge 46 Required tools 46 Types of screws 47 Service approach ...48 Before performing service 48 After performing service ...48 Post-service test ...48 Print-quality test 48 Parts removal order ...50 Removal and replacement procedures 52 Print cartridge, cassettes, and sub cover 52 Print cartridge ...52 Tray cassette (Tray 2, Tray 3, or Tray 4 54 vi ENWW