HP LaserJet 3052 Service Manual - Page 89
HP LaserJet 3050/3052/3055 all-in-one timing diagram—printer (product base),
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Basic operation 69 ENWW Figure 4-2 HP LaserJet 3050/3052/3055 all-in-one timing diagram-printer (product base) Power Switch ON SEQUENCE WAIT 1 Fixing Heater (H701) About 0.25 100°C Control 2 Print Command 3 Scanner Motor 4 Scanner Ready About 0.45 Max. 122 5 Main Motor (M1) 6 Pick-up Solenoid (SL1) 7 Top of Paper Sensor (PS801) 8 Paper Delivery Sensor (PS803) 9 Primary Charging Bias (AC) About 0.99 10 Primary Charging Bias (DC) 11 Developing Bias (AC) 12 Developing Bias (DC) 13 Transfer Charging Bias 14 Laser Diode 15 LASER BEAM signal (BD) About Negative Bias Max. 1.5 0.2 1.7 1.8 1.0 16 17 18 19 20 STBY INTR About 0.1 Print Temperature Control PRINT Between-sheets Temperature Control About 1.1 About 1.1 About 1.1 About 0.1 Max. 3.0 About 3.0 0.04 About 0.2 About 0.7 About 1.5 About 0.2 About 0.7 About 1.5 About 0.6 0.65 About 1.5 LSTR About 0.5 0.2 Forced emission Max. 1.5 About 0.16 About 0.17 About 0.16 About 0.47 About 0.4 Print Bias About 0.08 About 0.47 About 0.08 About 0.02 About 0.17 About 0.4 Between-sheets Bias About 0.02 About 2.2 About 0.2 (Unit:Seconds) STBY HP LaserJet 3050/3052/3055 all-in-one timing diagram-printer (product base)