9-18 Confidential
9.1.4.8 Sensor Operational Check (Function code 32)
îš„ Function
This function allows you to check the following:
- Document front sensor
- Document rear sensor
- Scanner/ink cartridge cover sensor
- Registration sensor
- Purge cam switch
- Black ink cartridge sensor
- Yellow ink cartridge sensor
- Cyan ink cartridge sensor
- Magenta ink cartridge sensor
- Head thermistor (in the head driver chip)
- Casing internal temperature thermistor (in the complex IC)
- Hook switch (for models with handset)
îš„ Operating Procedure
(1) Press the 3 and 2 keys in this order in the initial stage of the maintenance mode.
The machine sounds 1100 Hz and 400 Hz tones cyclically through the following volumes for
testing the speaker:
NOTE: To stop beeping, press the Menu or OK key.
If the sensing statuses are as listed below, the LCD will show "DFDRCVRSCCP1****" and
"IKIYICIMVTHKLKTH," which can be switched by pressing the Black Start (Mono Start)
key.
Given below is the relationship between the LCD indication, sensor name and sensor status.
LCD Sensors Sensing status
DF Document front sensor*
1
No document detected.
DR Document rear sensor*
1
No document detected.
CV Scanner cover sensor*
2
Scanner cover and ink cartridge cover closed.
RS Registration sensor No recording paper detected.
CC Ink cartridge cover sensor*
2
Scanner cover and ink cartridge cover closed.
P1 Purge cam switch Purge cam switch ON.
IK Black ink cartridge sensor Black ink cartridge loaded (Black ink present).
IY Yellow ink cartridge sensor Yellow ink cartridge loaded (Yellow ink present).
IC Cyan ink cartridge sensor Cyan ink cartridge loaded (Cyan ink present).
IM Magenta ink cartridge sensor Magenta ink cartridge loaded (Magenta ink present).
VT Head thermistor Driver chip temperature within the allowable range.
HK Hook switch*
3
On-hook state.
LK High yield ink cartridge sensor*
4
High yield ink cartridge not loaded.
TH Casing internal temperature thermistor Normal temperature detected.
For models with ADF