Action
Yes
No
Step 2
Check if the power supply cable is properly connected to the controller
board.
Are they properly connected?
Go to step 3.
Reseat the cables.
Step 3
a
Turn off the printer.
b
Remove the power cord.
c
Measure the resistance between terminals A and D of the power
supply socket.
Is the resistance approximately 30 ohms?
Go to
“Controller
board service check”
on page 108
.
Replace the power
supply. See
“Power
supply removal” on
page 216
.
Controller board service check
Service checks which involve measuring voltages on the power supply should be performed with the printer positioned
on its rear side.
Note:
When making voltage readings, always use frame ground unless another ground is specified. See the wiring
diagram in the back of the book for more information.
Warning—Potential Damage:
Do not replace the control panel and controller board at the same time. Each card
contains the printer settings. When either of these cards is new, it obtains some of the settings from the other card.
Settings are lost when both are new and replaced at the same time.
Action
Yes
No
Step 1
POR the machine.
Did the control panel , fuser, fan and drive motor function at startup?
Go to step 2.
Go to step 3.
Step 2
Run some print jobs.
Does the error remain?
Go to step 3.
The problem is solved.
Step 3
Check all cables on the controller board.
Are they connected properly?
Go to step 5.
Go to step 4.
Step 4
Properly connect all the cables on the controller board.
Does the error remain?
The problem is solved. Go to step 5.
4514
Diagnostic information
108
Содержание M1140
Страница 18: ...4514 18 ...
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Страница 30: ... Spring hook Feeler gauges Analog or digital multimeter Flashlight optional 4514 General information 30 ...
Страница 142: ...4514 142 ...
Страница 175: ...5 Remove the three screws B and then remove the left front mount B 4514 Repair information 175 ...
Страница 193: ...5 Remove the four screws B and then remove the right front mount B 4514 Repair information 193 ...
Страница 197: ...b Set the spring over the plunger 4514 Repair information 197 ...
Страница 204: ...3 Squeeze the latches B to release the left and right links B 4514 Repair information 204 ...
Страница 224: ...c Bring the cable in front of the two cable holders near the ACM shaft 4514 Repair information 224 ...
Страница 228: ...10 Remove the screw C and then detach the trailing edge sensor A 4514 Repair information 228 ...
Страница 229: ...11 Disconnect the two springs D 4514 Repair information 229 ...
Страница 231: ...15 Rotate and then remove the 2nd pickup bushing 16 Pull out the shaft and remove the ACM 4514 Repair information 231 ...
Страница 246: ...3 Swing the right cover backward to remove 4 Remove the screw D 4514 Repair information 246 ...
Страница 248: ...4514 248 ...
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Страница 255: ...Assembly 1 Covers 4514 Parts catalog 255 ...
Страница 257: ...Assembly 2 Electronics 1 4514 Parts catalog 257 ...
Страница 259: ...Assembly 3 Electronics 2 4 3 2 1 6 5 4514 Parts catalog 259 ...
Страница 261: ...4514 Parts catalog 261 ...
Страница 262: ...Assembly 4 Frame 4514 Parts catalog 262 ...
Страница 264: ...4514 Parts catalog 264 ...
Страница 265: ...Assembly 5 Option trays 3 4 5 6 1 2 4514 Parts catalog 265 ...
Страница 268: ...4514 Parts catalog 268 ...
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Страница 298: ...4514 Part number index 298 ...
Страница 302: ...4514 Part name index 302 ...
Страница 303: ......