HP 4 Plus Manual
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paper feedassembly removal 6-18 paper feed guide removal 6-62 paper feed system 5-1, 5-26 paper jam 7-20 detection 5-11 PS1 7-20 troubleshooting 7-20 paper motion 5-2 paper path MP tray 5-29 PC tray 5-30 paper pickup motor 5-10 paper pickup rollers 4-11 paper sensors 7-20 paper size sensing, lower cassette 7-16 paper specifications 2-3 paper tray switch settings 5-9 paper, loading optional lower cassette 3-45 parallel communication 3-31 DOS commands 7-53 parallel menu 3-33, B-22 parts list 8-40 PC LOAD Message 7-13 PC pick-up roller clutch solenoid (SL1) 5-5 PC rollers, PM 4-3 PC tray paper path 5-30 pickup roller removal 4-13 PC tray size switches (SW603, SW604, SW605) functional check 7-15 PCL fonts menu B-17 PCL memory requirements 3-26 period initial rotation 5-38 last rotation 5-42 print 5-40 standby 5-37 warm-up 5-37 periodic maintenance procedures 4-11 phone numbers CIC (Customer Information Centers) 1-13 CSC (Customer Support Center) 1-13 MSDS 1-11 printer drivers 3-41 technical assistance 1-12 photosensitive drum 5-17 photosensors signals 5-5 - 5-6 tray and door 5-5 - 5-6 pickup motor (m2) functional test 7-23 pickup motor, lower cassette 7-24 pickup rollers 6-1 PLEASE WAIT 7-B port infrared B-35 PostScript 3-58 postscript menu B-18 power supply removal 6-15 power system 5-1, 5-31 POWERSAVE ON 7-B pre-troubleshooting procedures 7-1 preliminary operating checks 7-1 print darkness 3-17 print density 7-38 adjusting 3-17 adjustment 4-5 dial 3-17 print media specifications 2-3 print period 5-40 printer security 3-18 serial number 1-3, B-5 specifications 1-5, B-6 printer drivers 1-13, 3-41 obtaining 3-41 Printer Job Language (PJL) overview 5-15 printer message troubleshooting 7-2 printer open failure 7-18 PRINTING CONFIG PAGE 7-B PRINTING DEMO PAGE 7-B printing envelopes 2-6 PRINTING FLASH PAGE 7-B PRINTING FONT LIST 7-B printing menu 3-24, B-15 printout, test print 3-29 process, fusing 5-25 PROCESSING JOB 7-B product compatibility 1-2, B-2 - B-3 programming flash SIMM B-29 protecting the SIMM board 3-51 protocol infrared B-34 PS 5, MP tray trailing edge sensor 7-44 PS1 and PS2 sensor assembly removal 6-61 input/registration sensor 5-7 paper jam 7-20 PS2 functional check 7-17 paper jam 7-20 PC tray paper-out sensor 5-6 PS3 (exit sensor) check 7-23 paper exit sensor 5-7 PS3 removal 6-42 PS4 check 7-17 Index-5
PS5check 7-44 MP tray trailing edge sensor 5-7 PS6, lower cassette paper-out sensor 5-7 PS7, envelope feeder paper-out sensor 5-7 R RAM size 3-24 Random Horizontal Black Lines 7-40 READY 7-B rear door removal 6-8 recycling program Toner Cartridge 4-7 registration adjustment 6-35 leading edge adjustment 6-35 related documentation 1-7, B-8 removal font door cover 6-10 formatter pca 6-29 gear assembly 6-38 left side cover 6-7 MP tray separation 4-11 PC tray pickup roller 4-13 top cover 6-5 transfer roller 4-16 REMOVE DUPLEX JAM 7-B REMOVE PAPER JAM 7-C removing and replacing the transfer roller 4-15 lower cassette roller 4-14 MP tray separation pad 4-11 MP tray, paper pickup rollers 4-11 PC tray pickup roller 4-13 the SIMMs cover 6-25 transfer roller 4-16 removing the covers 6-4 repackaging instructions 3-43 repetitive defect template 7-67 repetitive defects 7-35, 7-41 replacing fuser parts 6-47 MP tray separation pad 4-11 paper pickup rollers 4-11 the feed guide assembly 6-68 the high voltage contact assembly 6-68 the transfer roller 4-16 REQUESTED LANGUAGE NOT AVAIL 7-C requirements for infrared B-35 requirements, site 2-1 Reset Menu 3-5 reset, cold 3-23 resets menu B-23 RESETTING ACTIVE I/O 7-C RESETTING ALL I/O 7-C Resolution Enhancement (REt) 3-16 Resolution Enhancement technology status 3-26 Resource Saving 3-14 status 3-26 RESTORING FACTORY SETTINGS 7-C returning the printer 3-43 RFI statement 1-9 right hand text missing 7-35, 7-40 right side cover removal 6-4 robust xon 3-34 rollers life expectancy 4-2 MP tray 4-11 paper pickup 4-11 rs-422A 3-39 rs232C 3-33 S safety Finland laser 1-10, B-9 label, Laser 1-8 laser, CDRH 1-8 laser, DHHS 1-8 ozone 1-11 toner 1-11 scanner assembly removal 6-43 scanner malfunction 7-32 scanner motor 5-10 signals 5-10 security, networks 3-18 self test description 3-24, B-32 sensitivity, drum 5-17 sensor pca removal 6-60 separation pad 6-1 life expectancy 4-2 MP tray 4-11 sequence of operation, basic 5-33 serial cable pinouts 3-35 communication 3-31 configuration 3-33 DOS commands 7-53 serial data communication 5-4 flow 5-4 input (SLI) 5-2 output (SLO) 5-2, 5-4 repackaging instructions 3-43 repetitive defect template 7-67 repetitive defects 7-35, 7-41 replacing fuser parts 6-47 serial menu B-22 serial number 1-3, B-5 Index-6
service checkpoints 4-1, 4-3 Service Mode 3-20, B-25 service/error messages 3-59 setting the cold reset B-27 setting the page count 3-21, B-26 setting up the envelope feeder 3-50 settings, tray switch 5-9 sheet feeder installation 3-44 signalsfan motor 5-10 main motor 5-10 Microswitch 5-8 Photosensor 5-6 scanner motor 5-10 solenoid 5-5 site requirements 2-1 Skip demo B-28 SL1, PC pick-up roller clutch solenoid 5-5 SL2, MP pick-up roller clutch solenoid 5-5 SL3 lower cassette pickup roller clutch solenoid 5-5 SLI (serial data in) 5-4 SLO (serial data out) 5-4 smeared print/improper fusing 7-35, 7-42 software B-35 shipped with printer B-34 solenoids 5-5 signals 5-5 space requirements 2-2 specifications IrDA B-34 labels 2-3, 2-5 paper 2-3 print media 2-3 standard printer operation 5-33 standby period 5-37 state machines 5-4 statement, RFI 1-9 station drum cleaning 5-18 drum conditioning 5-19 drum developing 5-22 drum transferring 5-24 drum writing 5-20 fusing 5-25 Status message troubleshooting 7-2 status, self test 3-26 sw601 7-19 sw601, top cover open sensor switch 5-8 sw602, test print switch 5-8 SW603 7-15 PC size switch 5-8 SW604 7-15 PC size switch 5-8 SW605 7-15 PC size switch 5-8 sw851, lower cassette size switch 5-8 sw852, lower cassette size switch 5-8 sw853, lower cassette size switch 5-8 switch locations 7-62 switch settings, paper tray 5-9 system communication 3-31 configuration 3-31 paper feed 5-26 T TB201 (voltage test points) 7-69 technical assistance 1-12 test menu B-24 test message for communications check 7-52 test print button 3-29 test print printout 3-29 test tool infrared B-39 thermistor removal 6-56 thermoswitch removal 6-55 timing 5-2 timing diagrams 5-34 toner cleaning 1-11 distribution 4-10 level 5-2 safety 1-11 toner cartridge 4-1, 4-5, 4-10 components 7-26 life 4-5 life expectancy 4-2 recycling 4-7 refilled 4-9 shelf life 4-6 storage 4-6 TONER LOW 4-10, 7-C message 7-25 TONER LOW=OFF 4-10 TONER LOW=ON 4-10 tools, required 6-2 top cover removal 6-5 trailing edge sensor PS5 7-44 transfer roller PM 4-3 removal and replacement 4-15 - 4-16 replacement 4-16 transferring station, drum 5-24 TRAY 1/2/3 LOAD message 7-13 Tray 2 tray size switches 7-15 TRAY 2/3 EMPTY 7-C TRAY X LOAD 7-C tray, switch settings 5-9 troubleshooting aids 7-59 Attendance messages 7-2 Index-7
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