HP CP4525DN Laser CC494A#ABA manual Manual sensor test 2 special-mode test

Manual sensor test 2 (special-mode test)

Use this test to test paper-path sensors and the paper-size switches manually. The following illustrations and table show the locations of these sensors.

1.Press the Home button .

2.Press the down arrow to highlight the DIAGNOSTICS menu, and then press the OK button.

3.Press the down arrow to highlight the MANUAL SENSOR TEST 2 option, and then press the OK button.

Table 3-5Manual sensor test 2 diagnostic tests

Sensor or switch name	Sensor or switch number
O Tray 1 paper present sensor	SR8
P Tray 2 paper present sensor	SR25
Q Tray 2 paper surface 1 and 2 sensors	SR23 and SR24
R Tray 2 paper size switches	SW4
S Tray 3 paper present sensor	SR3 (paper feeder)
T Tray 3 feed sensor	SR4 (paper feeder)
U Tray 3 paper surface 1 and 2 sensors	SR1 and SR2 (paper feeder)
V Tray 3 paper size switches	SW2 (paper feeder)
W Tray 4 paper present sensor	SR6 (paper feeder)
X Tray 4 feed sensor	SR7 (paper feeder)
Y Tray 4 paper surface 1 and 2 sensors	SR5 and SR8 (paper feeder)
Z Tray 4 paper size switches	SW3 (paper feeder)
a Tray 5 paper present sensor	SR11 (paper feeder)
b Tray 5 feed sensor	SR10 (paper feeder)
c Tray 5 paper surface 1 and 2 sensor	SR9 and SR12 (paper feeder)
d Tray 5 paper size switches	SW4 (paper feeder)
The following items cannot be tested using the manual sensor test.
5 V laser and 24 V interlock switches	SW1 and SW2
Power switch	SW3
New ITB sensor	SR10
Tray 3, 4, and 5 right door switch	SW1 (paper feeder)

To perform these tests, do the following:

●Remove the appropriate tray.

●Watch for the corresponding bit to toggle from 1 to 0 or 0 to 1. It can take a few seconds for bits to toggle.

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