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Confidential
2.3 Resetting Drum Counter
<Function>
This function resets the drum counter when replacing it.
<Operating Procedure>
2.4 Change Active/Inactive Setting for Quiet Mode 
(LED models only)
<Function>
This mode lowers the printing speed to suppress operation noise.
<Operating Procedure>
(1) Press the [Go] 11 times while the machine is in the ready state. All LEDs light. 
The number of flashes after pressing the [Go] 11 times indicates the function is active or 
inactive.
All LEDs flash once: Quiet mode is inactive
All LEDs flash twice: Quiet mode is active
LCD models
(1) Press the [OK] and [ ] 
simultaneously while the machine is in 
the ready state.
(2) “Drum” is displayed on the LCD. 
Press the [OK].
(3) “Reset Drum? 
▼
Reset 
▲
Exit” is 
displayed on the LCD.
(4) Press the [ ] to display “
Accepted
” on 
the LCD. The drum counter is reset, 
and the machine returns to the ready 
state.
LED models
(1) Open the front cover. 
Paper LED lights.
(2) Press and hold the [Go]. The Toner 
LED, Drum LED, Paper LED and 
Ready LED light in this order. Check 
that all those LEDs light and release 
[Go]. The drum counter is reset, and 
the Paper LED starts flashing.
(3) Close the front cover.
Note:
• Resetting operation is ignored when the drum page count has not exceeded 100 pages.