Toner Sensor; Removal; Installation - Epson EPL-N4000 Service Manual

EPSON EPL-N4000/EPL-N4000+

4.2.47 Toner Sensor

(See "Xerography and Development Transport Chute Assembly" on
page -274)

4.2.47.1 Removal

1. Remove the Rear Cover. ("Rear Cover Assembly" on page -140)
2. Disconnect P/J127 from the MCU PWB.
3. Open the Left Upper Cover.
4. Remove the EP Cartridge.("EP Cartridge (Toner Cartridge)" on
page -192)
5. Use the flat blade of a screwdriver to pry up the front end of the
Toner Sensor (refer to the figure below).
6. When the front end is freed, remove the Sensor along with the
attached wire harness.
Figure 4-62. Removal of Toner Sensor
Rev.B
Chapter 4

4.2.47.2 Installation

1. Reinstall the Toner Sensor and attached springs. (refer to the figure
for correct positioning).
2. Route the attached wire harness along the channel and through the
small opening in the rear of the frame.
3. Press the Toner Sensor into the cutout in the bottom of the EP
Cartridge cavity.
4. Press and release the Toner Sensor to make sure it has a spring-
action return.
5. Reconnect P/J127 to the MCU PWB.
6. Reinstall the Rear Cover. ("Rear Cover Assembly" on page -140)
7. Reinstall the EP Cartridge. ("EP Cartridge (Toner Cartridge)" on
page -192)
8. Close the Left Upper Cover.
Disassembly and Assembly
195