Diagnostic information 2-137
7562
402.xx—HTU output sensor error service check
4
Replace the HTU input sensor. See “HTU sensor
(input) removal” on page 4-404.
Does the error reoccur?
Replace the HTU
controller card.
See “HTU
controller card
removal” on
page 4-369.
Problem solved.
Step Questions / actions Yes No
1 1. Bring the printer up in Diagnostics menu (turn off
the printer, press and hold 3 and 6, turn on the
printer, and hold the buttons until the splash screen
appears).
2. Navigate to INPUT TRAY TESTS > Feed Test.
3. Select Tray 1.
4. Select Single.
Does the error reoccur?
Go to step 2. Problem solved.
2
1. Clear away anything in the paper path that might
cause the paper to jam.
2. Check the HTU output sensor for damage.
See“HTU output sensor removal” on
page 4-391.
Is the sensor damaged?
Replace the HTU
output sensor.
See “HTU
output sensor
removal” on
page 4-391.
Go to step 3.
3
Remove the HTU rear standard bin cover. See “HTU
rear standard bin cover removal” on page 4-394.
Check the cable in the indicated connector.
Is the cable proper connected?
Go to step 4. Reseat the
connector.
4
Replace the HTU output sensor. See “HTU output
sensor removal” on page 4-391.
Does the error reoccur?
Replace the HTU
controller card.
See “HTU
controller card
removal” on
page 4-369.
Problem solved.
Step Questions / actions Yes No
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