Diagnostic information
2-35
Dead printer service check
A dead printer is a condition where the display is blank, the LED on the operator panel is off, the fan does not
turn, no motors turn, and the fuser does not heat.
If a 650-sheet Duo Drawer is installed, remove the option and check the base printer for correct operation. If the
base printer operates correctly, replace the 650-sheet Duo Drawer.
Warning:
Observe all necessary ESD precautions when removing and handling the controller board or any
installed option cards or assemblies. See
“Handling ESD-sensitive parts” on page 4-1
.
Remove any input paper handling options from the printer.
Step
Questions / actions
Yes
No
1
Check the AC line voltage.
Is the line voltage correct?
Go to step 2.
Inform the customer.
2
Is the AC line cord damaged?
Replace the line cord.
Go to step 3.
3
Is the JLVPS1 cable correctly connected at
JLVPS1 on the controller board?
Go to step 5.
Reconnect the JLVPS1
cable, and go to step 4.
4
Turn the printer off, and then on.
Does the problem persist?
Go to step 5.
Problem resolved.
5
Warning:
Damage to the printer is possible.
Be careful to touch only one conductor at a
time. Rest the probe against the connector to
steady it.
With the printer on.verify the following values at
JLVPS1:
Are the values approximately correct?
Replace the controller
board. See
.
Replace the LVPS.
See
supply (LVPS) assembly”
on page 4-43
CAUTION
When you see this symbol, there is a danger from hazardous voltage in the area of the product
where you are working. Unplug the product before you begin, or use caution if the product
must receive power in order to perform the task.
JLVPS1 (exposed conductors)
Pin
Value
Pin
Value
1
+5 V dc
2
Ground
3
+5 V dc
4
Ground
5
+5 V dc
6
Ground
7
+24 V dc
8
Ground
9
+24 V dc
10
Ground
11
+24 V dc
12
Ground
16
Ground
Y112730-2
Содержание d-Color MF920
Страница 1: ...SERVICE MANUAL Copiatrici Copiers d Color MF920 d Color MF923 Code Y112730 2...
Страница 10: ...x Service Manual Y112730 2...
Страница 15: ...Notices and safety information xv Y112730 2...
Страница 16: ...xvi Service Manual Y112730 2...
Страница 18: ...xviii Service Manual Y112730 2...
Страница 22: ...xxii Service Manual Y112730 2...
Страница 124: ...2 80 Service Manual Y112730 2...
Страница 198: ...3 74 Service Manual Y112730 2...
Страница 203: ...Repair information 4 5 4 Remove the three screws A on the rear side of the left cover A Y112730 2...
Страница 211: ...Repair information 4 13 9 Remove the two springs D 10 Remove the two screws E on the bottom Y112730 2...
Страница 234: ...4 36 Service Manual 4 Snap the new gear onto the shaft D The installation is the same as the old gear Y112730 2...
Страница 288: ...4 90 Service Manual 6 While holding the op panel mounting assembly remove the op panel bezel cover Y112730 2...
Страница 302: ...4 104 Service Manual Y112730 2...
Страница 305: ...Locations 5 3 Interior view Y112730 2...
Страница 306: ...5 4 Service Manual Printer boards Controller Board Y112730 2...
Страница 317: ...Locations 5 15 HVPS Y112730 2...
Страница 319: ...Locations 5 17 LVPS Y112730 2...
Страница 324: ...6 2 Service Manual Y112730 2...
Страница 331: ...Index I 7 Y112730 2...
Страница 332: ...UPDATINGSTATUS DATE UPDATEDPAGES PAGES CODE 09 2010 1ST EDITION 332 Y112730 2...