9-23
Confidential
9.4.9 Sensor Operational Check (Function code 32)
Function
This function allows you to check the following:
• Document front sensor (for models with ADF)
• Document rear sensor (for models with ADF)
• Scanner cover sensor
• Registration sensor
• Ink cartridge cover sensor
• Purge cam switch
• Cap lift cam switch
• Ink cartridge detection sensors (black, yellow, cyan, and magenta)
• Ink empty sensors (black, yellow, cyan, and magenta)
• Head thermistor (in the head driver chip)
• Casing internal temperature thermistor (in the complex IC)
• Hook switch (for models with handset)
Operating Procedure
(1) Press the 3 and 2 keys in this order in the initial stage of the maintenance mode. For models
without numerical keypad, enter 3 and 2 in this order using the , and OK keys.
The machine sounds 1100 Hz and 400 Hz tones cyclically through the following volumes
for testing the speaker (MFC only):
NOTE: To stop beeping, in models without touch panel, press the Menu or OK key; in
models with touch panel, press the Photo Capture key.
If the sensing statuses are as listed on the next page, the LCD will show
"DFDRCVRSCCP1CP**," "IKIYICIMEKEYECEM," "********VTHKCRTH," and
"****************," which can be switched by pressing the Black Start (Mono Start)
key.
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