Epson EPL-N4000 Service Manual page 257

EPSON EPL-N4000/EPL-N4000+
Figure 7-14. Toner Sensor
Table 7-12. Signal Name
Signal Name
CRUM$PWR Switches CRUM power.
CRU$CLK Clock signal for CRU Memory
CRU$DATA CRU Memory data
TNR#EMP Monitor toner quantity in the ET Cartridge. Low=Quantity
is low. Hiigh=Enough quantity.
Rev.B
Xerographic CRU MCU PWB
Description
Figure 7-15. HVPS M CU PWB
Table 7-13. Signal Name
Signal Name
BTR#MON Monitors BTR current level
BTR$SEL Switches BTR voltage. High=Positive voltage.
Low=Negative voltage
BTR$RMT Controls the current value to the BTR
DTS$ON Switches Detack Saw and Chute Bias voltage. High=Off.
Low=On
BCRAC$CLK Controls the AC voltage value to the BCR. Negative logic
BCRDC$ON Switches BCR voltage. High=Off. Low=On
DBAC$CLK Controls the AC voltage value to the Magnet Roll.
Negative logic
DB$ON Switches DB voltage. Negative logic
Chapter 7 Appendix
Description
243