TroubleshootingSamsung Electronics 4-54-3-2 SCX-51154-4 Tech Mode4-4-1 How to Enter Service ModeIn service mode (tech) mode, the technician can check the machine and perform various tests to isolate thecause of a malfunction.To enter the Tech mode, press MENU, #, 1, 9, 3, 4 in sequence, and the LCD briefly displays ‘T’ or ‘TECH’,the machine has entered service (tech) mode.While in Tech mode, the machine still performs all normal operations.To return to normal user mode, press MENU, #, 1, 9, 3, 4 in sequence again, or turn the power off, then onby unplugging and plugging the power cord.Options changed while in service mode remain in effect until they are changed again or until you clear themachine’s memory.MAINTENANCE CLEAN DRUMNEW DRUMNOTIFY TONER LOW ON / OFFTX CONFIRMSCHEDULE JOBPHONE BOOKSYSTEM LISTTX JOURNALRX JOURNALHELP LIST HELP LIST✳❑n❄❏❊on✳❑n❄❏❊on✳❑n❄❏❊on✳❑n❄❏❊on ✶❏❆m✶❏❆m✶❏❆m✶❏❆m ✰on❏❆n❏✰on❏❆n❏✰on❏❆n❏✰on❏❆n❏SYSTEM DATA CASSETTE PAPER LETTER / A4 / LEGALBYPASS PAPER LETTER / A4 / LEGALPOWER SAVE ON / OFFSELECT LANGUAGE ENG/GER/FRE/ITA/SPA/POR/DUTUSB MODE FAST / SLOWHELP LIST HELP LIST PRINTOUTMAINTENANCE CLEAN DRUMNEW DRUMREPORTS SYSTEM DATAHELP LIST HELP LIST✳❑n❄❏❊on✳❑n❄❏❊on✳❑n❄❏❊on✳❑n❄❏❊on ✶❏❆m✶❏❆m✶❏❆m✶❏❆m ✰on❏❆n❏✰on❏❆n❏✰on❏❆n❏✰on❏❆n❏