HP PCL/PJL reference - PCL 5 Comparison Guide
Page 191
... PJL, the feature settings contained in the User Default Environment were selectable through PJL or both. ENWW Print Environment 4-7 In newer printers with PJL, these feature settings can be retained in non-volatile RAM (NVRAM), which do not contain NVRAM). Note Table 4-3 lists...in the event of a power cycle (except for the HP LaserJet 4L, 5L, 6L, and 1100 series printers, which allows it to the Factory Default Environment upon a cold reset. This print environment is reset to be set from either the control panel (if the printer has one) or through the control panel only.
... PJL, the feature settings contained in the User Default Environment were selectable through PJL or both. ENWW Print Environment 4-7 In newer printers with PJL, these feature settings can be retained in non-volatile RAM (NVRAM), which do not contain NVRAM). Note Table 4-3 lists...in the event of a power cycle (except for the HP LaserJet 4L, 5L, 6L, and 1100 series printers, which allows it to the Factory Default Environment upon a cold reset. This print environment is reset to be set from either the control panel (if the printer has one) or through the control panel only.
HP PCL/PJL reference - Printer Job Language Technical Reference Manual
Page 96
... MS Gothic font (usually M4), and set using the PCLDEF.PJL file.) 6-32 Environment Commands EN If ESC/P is installed in HP LaserJet 4V and 4MV printers and a menu reset or cold reset is performed, the printer defaults to 1 for MS Mincho or 2 for PCL using the LPARM : ESCP option. Also set ESC/P as the default personality...
... MS Gothic font (usually M4), and set using the PCLDEF.PJL file.) 6-32 Environment Commands EN If ESC/P is installed in HP LaserJet 4V and 4MV printers and a menu reset or cold reset is performed, the printer defaults to 1 for MS Mincho or 2 for PCL using the LPARM : ESCP option. Also set ESC/P as the default personality...