Epson EPL-N1200 Service Manual - Page 66

Toner is Enough, 1.1.9 Toner Empty Sensor

Get Epson EPL-N1200 PDF manuals and user guides View all Epson EPL-N1200 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 66 highlights

EPL-N1200 Service Manual Operating Principles 2.1.1.9 Toner Empty Sensor Toner empty is detected by the toner empty LED and the photo sensor on the toner empty detection board. When there is enough toner in the imaging cartridge, light is not reflected from the toner empty sensor LED. When toner in the imaging cartridge is empty, light from the toner empty sensor LED is reflected by the reflective mirror. Then, the photo sensor receives the light and the controller recognizes a toner empty condition. When you open and close the top cover after the printer has detected a toner empty signal, the controller assumes that the imaging cartridge has been replaced and resets the toner empty status. Toner is enough Toner is empty Reflective Mirror Figure 2-10. Toner is Enough LED Transparent Windowpane Toner Empty Sensor LED Photo Sensor Figure 2-11. Toner is Empty Rev. A 2-7

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
2.1.1.9 Toner Empty Sensor
Toner empty
is detected by the toner empty LED and the photo sensor on the toner empty
detection board.
When there is enough toner in the imaging cartridge, light is not reflected from the toner empty
sensor LED. When toner in the imaging cartridge is empty, light from the toner empty sensor LED is
reflected by the reflective mirror. Then, the photo sensor receives the light and the controller
recognizes a toner empty condition.
When you open and close
the top cover after the printer has detected a toner empty signal, the
controller assumes that the imaging cartridge has been replaced and resets
the toner empty status.
Toner is enough
Toner is empty
Figure 2-10. Toner is Enough
Reflective Mirror
Photo Sensor
Toner Empty Sensor LED
LED Transparent Windowpane
Figure 2-11. Toner is Empty
EPL-N1200 Service Manual
Operating Principles
Rev. A
2-7