5-11
Confidential
19) Maintenance and Frame Pattern Print
Page 1: Print the Maintenance printing. Page 2: Print the specification frame pattern 
printing with duplex printing. When set the duplex to OFF with “16) Duplex Setting (ON/
OFF)”, the duplex printing is printed.
20) Network Configuration Print (Network Model Only)
Print the various network settings information of the printer.
21) Sleep Mode Setting (ON/OFF)
Switch the ON/OFF of the sleep function of the printer. Whenever you switch this mode, 
all LEDs light for one second and the setting is changed over from the present one to the 
other. When the setting is completed, the printer return to the ready state.
22) Develop Roller Counter Reset (For the starter toner cartridge)   
23) Develop Roller Counter Reset (For the standard toner cartridge)
24) Develop Roller Counter Reset (For the high-capacity toner cartridge)
Since print density is likely to become darker as toner is getting older, the developing 
bias is lowered by degrees according to the number of prints so that an almost fixed 
density can be maintained from the start of the use of brand-new toner to the end of it.
(The value of the developing bias is printed on the Maintenance sheet.)  The developing 
bias is a parameter which depends on the toner cartridge, so it needs to be reset when 
the toner cartridge is replaced. (Usually, it is reset automatically.)  At that time, the 
develop roller counter reading is also reset.  This mode is to enable to execute these 
operations (equivalent to those done when the toner cartridge is replaced) manually from 
the service mode.
25) USB Speed Fix Mode
Switch the setting of USB FULL Fixing/Automatic switching (High/FULL). Whenever you 
switch this mode, the setting is changed over from the present one to the other.
You can verify the setting change by LEDs when releasing the [Go] button. When the 
setting is completed, the printer return to the ready state.
26) Sleep Mode Indication (OFF/Dimmed)
This is to select whether the Ready LED is turned off completely or lit in green with low 
light intensity during the Sleep mode.  Whenever you switch this mode, the setting is 
changed over from the present one to the other. 
You can verify the setting change by LEDs when releasing the [Go] button. When the 
setting is completed, the printer return to the ready state.
LED Setting of FULL Fixing/Automatic switching (High/FULL)
Toner LED lights for 
one second
Automatic switching (default) 
→ FULL fixing
Drum LED lights for 
one second
FULL fixing 
→ Automatic switching
LED Setting of Ready LED intensity during the Sleep mode
Ready LED lights for 
one second with low 
light intensity
OFF 
→ Low light intensity
Drum LED lights for 
one second with 100% 
light intensity in green
Low light intensity 
→ OFF