Panasonic UF-6300, Service Manual

Page: 153 / 274

153
Out of Toner Detection
Toner Sensor output may change when the mixing blade passes above the Toner Sensor. Therefore
the output signal has a max. voltage and min. voltage during mixing blade rotation cycle (4.6 sec.).
E043
If the unit detects Status B, 10 times during printing, the machine recognizes that the remaining toner is
low and the display shows "REPLACE TONER CARTRIDGE".
E041
After detecting E043 and the LBP Print Available Counter Value reaches "0" (after 100 pages are
printed), the unit logs E041 (OUT OF TONER).
E045
If the unit detects Status C when power is On, the unit logs E045 and displays "NO CARTRIDGE". The
unit will recover when detecting Status A after a new toner cartridge is installed.
1.4V
2V
3V
1V
0V
Status A
Status B
(Enough toner in the cartridge)
(Remaining toner
is getting low)
Status C
(Almost no toner)
Max. - min. voltage is less than 1.0V
Min. voltage is more than 1.4V
Max. - min. voltage is less than 0.25V
Min. voltage is less than 1.4V
Max. - min. voltage is less than 0.08V
Min. voltage is less than 1.4V
Mixing blade
rotating cycle
Toner Sensor Output Signal