Olivetti d-Color MF920, Service Manual

Page: 104 / 332

2-60
Service Manual
Tray (x) sensor service check
Step Questions / actions Yes No
1 When the printer is in Ready state, pull the
standard tray out. The display should indicate
Tray (x) Missing
. Insert the tray.
Does the message remain on the display?
Go to step 2. Go to step 4.
2 Check the vertical well at the right rear of the
tray for damage.
Is the tray damaged?
Replace the tray. Go to step 3.
3 Check for a dislodged tray present sensor.
Is the sensor dislodged?
Replace the tray 1 sensor. If
the 650 sheet tray is
affected replace the 650
sheet drawer assembly. If
the 550 sheet assembly is
affected, replace the entire
550 sheet assembly. Contact the next level of
support.
4 Does the message
Tray (x) Missing
fail to
appear when the tray is pulled out?
Go to step 5. Problem resolved.
5 Turn off the printer, and remove the rear
shield.
“Rear shield removal” on page 4-7 .
Disconnect the cable at JTRAY1 connector for
tray1 or JOPT1 for tray 2 and 3 on the
controller board. Turn the printer on, and
measure the voltages below:
Check these voltages for Tray 2 and 3
Are the voltage values approximately correct?
Problem resolved. Replace the controller
board. See
“Controller
board removal” on
page 4-18
.
JTRAY1 for tray 1
Pin Voltage
1 +5 V dc
2 +5 V dc
3 Ground
JOPT1 for tray 2
or 3
Pin Voltage
2 Ground
3 Ground
5 +24V
6 Ground
7 +5V
9 Ground
10 Ground
Y112730-2