HP LaserJet 4 Service Manual - Page 444
Index-8
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Error messages 7-2 general information 7-1 infrared B-38 Message Summary Table 7-2 messages 7-2 preliminary 7-1 Printer messages 7-2 quick checks 7-1 Status messages 7-2 Troubleshooting, IR port B-38 U unpacking the printer 3-43 user maintenance 4-2 V variable, customization 3-22 version number 3-26 vertical dark streaks 7-35, 7-46 vertical sync late (41.4) 7-28 vertical white streaks 7-35, 7-40 voltage checks 7-69 voltage test points 7-69 W W0 JOB 600/A4 7-11 W1 IMAGE ADAPT 7-11 W2 INVALID PERS 7-11 W3 JOB ABORTED 7-11 W4 JOB 300/OFF 7-11 W5 JOB 300/LTR 7-11 W6 JOB 300/A4 7-11 W7 JOB 300/LGL 7-11 W8 JOB 600/OFF 7-11 W9 JOB 600/LTR 7-11 warm-up period 5-37 WARMING UP 7-C white or blank pages 7-48 white streaks, vertical 7-40 wireless printing See see infrared writing station, drum 5-20 X X LOAD 7-C xon/xoff 3-34 Index-8