Olivetti d-Color MF920 Service Manual

2-58 Service Manual
Toner meter cycle (TMC) card
Toner sensors (Y, C, M, K) on TMC card
Step Questions / actions Yes No
1 Perform the Base Sensor Test:
1. Enter Diagnostics menu (turn off the
printer, press and hold and Select ( ),
turn on the printer, and release the buttons
when the installed memory and processor
speed displays).
2. Select Base Sensor Test, and press
Select ().
3. Select the sensor you want to test, open
the toner door, remove the corresponding
toner cartridge, and press Select ().
4. Note whether the operator panel shows a
change in state.
Note: If the reflective disk is not showing
on the cartridge, rotate the gear clockwise
to expose the reflective surface.
For additional information about the Base
Sensor Test, see “Base Sensor Test” on
page 3-18.
Does the operator panel display a change of
state?
Replace the toner cartridge. Replace the toner meter
cycle (TMC) card. See
“Toner meter cycle (TMC)
card removal” on
page 4-61.
Step Questions / actions Yes No
1 Remove the toner cartridge, and inspect the
lenses on the toner meter cycle (TMC) card.
Are the lenses blocked, damaged, or dirty?
Repair or replace the TMC
card. See “Toner meter
cycle (TMC) card removal”
on page 4-61.
Go to step 2.
2
Turn off the printer, and remove the rear
shield. See “Rear shield removal” on
page 4-7. Disconnect the cable at the JSP1
connector on the controller board. Turn the
printer on, and measure the voltages below:
Are any of the voltage values incorrect?
Replace the controller
board. See “Controller
board removal” on
page 4-18.
Replace the TMC card. See
“Toner meter cycle (TMC)
card removal” on
page 4-61.
JSP1
Pin Voltage
1 Ground
2 +3.3 V dc
3 +3.3 V dc
4 +3.3 V dc
5 +3.3 V dc
6 +0.0 V dc
Y112730-2

Olivetti d-Color MF920 Specifications

General

Brand	Olivetti
Model	d-Color MF920
Category	All in One Printer
Language	English