Table 21 shows how to use PJL commands to enter service mode and perform various service mode configurations. Table 21. PJL service mode commands Setting the page count The page count is stored in the printer’s NVRAM. If it is necessary to replace the formatter PCB, the page count should be reset to the printer’s original page count to reflect the age of the print engine. Before removing the old formatter PCB, print a self test/configuration page to verify the current page count of the printer, if possible. See “Self test/configuration page” on page 47. Table 22.
Setting the page count C7058-90936 Service mode 53 PJL Command Description E %-12345X@PJL C Start PJL job @PJL SET SERVICEMODE=HPBOISEID Enter service mode @PJL SET PAGES=0 Set page count [= xxxxx] @PJL SET SERIALNUMBER=USBBB12345 Set printer serial number (=chassis label serial number) @PJL SET CRPAPER=LETTER Set cold-reset page size [=letter/A4] @PJL SET SKIPDEMO=FALSE Skip demo/PCL type page [=true/false] @PJL SET DIAGNOSTICS=OFF Set diagnostics [=OFF/ON] (for ISV use) @PJL SET SERVICEMODE=EXIT Exit service mode DEFAULT PAPER=LETTER Select user paper-size default @PJL RESET Perform PJL reset E %-12345X C Exit PJL mode E Z C Print self test/configuration page E E C Reset the printer PJL Command Description E %-12345X@PJL C Start PJL job @PJL SET SERVICEMODE=HPBOISEID Enter service mode @PJL SET PAGES=0 Set page count [= xxxxx] @PJL SET SERVICEMODE=EXIT Exit service mode @PJL RESET Perform PJL reset E %-12345X C Exit PJL mode E Z C Print self test/configuration page E E C Reset the printer