HL-2030/2040/2070N SERVICE MANUAL
Confidential
8-11
(8) 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. When you take your finger off from this
switch, the Ready LED is lit in 100% light intensity or low light intensity according to the
setting so that you can verify the present setting.
(9) Sleep Mode Setting (ON/OFF)
This is to allow you to turn on and off the sleep mode of the printer. The default setting is
ON. The machine automatically goes back to the ready state after the operation is
completed.
(10) Developer Roller Counter Reset 1 (For the starter toner)
(11) Developer Roller Counter Reset 2 (For the standard toner)
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 developing assembly, so it needs to be reset when the
developing assembly is replaced. At that time, the developing roller counter reading is
also reset. This mode is to enable to execute these operations (equivalent to those done
when the developing assembly is replaced) manually from the service mode.
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