<Function>
This function allows you to check whether the 20 sensors work correctly.
<Operating Procedure>
(1)Press the [3] and [2] keys in this order in the initial stage of the maintenance mode. The machine beeps 1100 Hz and 400 Hz tones cyclically through the following volumes for testing the speaker. To stop beeping, press the [OK] button.
400 Hz
Low
Medium
High
OFF | OFF |
1100 Hz
Low
Medium
High
If the sensing status are as listed below, the LCD will show the following: "C1P1C2P2T2T3BC**", "TNMPNTRMRSPOCV" and "DFDRDLDSFCFH****" (which can be switched by pressing the [Start] button for machines.)
Given below is the relationship among the LCD indication, sensor names and sensor status.
LCD | Sensors | Sensing status |
|
|
|
C1 | Tray1 sensor | Tray installed. |
P1 | Tray1 paper sensor | Recording paper detected. |
C2 | Tray2 sensor | Tray installed. |
P2 | Tray2 paper sensor | Recording paper detected. |
T2 | Tray2 connect sensor | Tray2 connected. |
T3 | Tray3 connect sensor | Tray3 connected. |
BC | Back cover sensor | Back cover detected. |
| (Used for both standard tray andduplex tray.) | (Tray detected.) |
TN | Toner sensor | Toner detected. |
MP | Recording paper detected. | |
NT | New toner sensor | New toner detected. |
RM | Front registration sensor | No paper detected. |
RS | Rear registration sensor | No paper detected. |
PO | Paper ejection sensor | No paper detected. |
CV | Front cover sensor | Front cover detective. |
DF | Document front sensor | No document detected. |
DR | Document rear sensor | No document detected. |
DL | ADF document separation sensor/Size sensor | Document detected. |
DS | ADF document SB sensor | No document detected. |
FC | FB cover sensor | Document cover closed. |
FH | Document scanner home position sensor | CCD unit home position detected. |
(2)Change the detecting conditions to check that the indication on the LCD changes according to the sensor states. For instance, insert paper through the document front (or rear) sensor or the registration sensor (s), open the front cover or the document cover, remove the toner cartridge, jam paper at the paper outlet, insert paper from the manual feeder, and load a recording paper tray, etc.
Confidential |