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Dead machine service check
Action
Yes
No
Step 1
a
Check the power cord for continuity. Replace if necessary.
b
Make sure the nominal voltage source is within specification.
See
“Electrical specifications” on page 309
.
Go to step 2.
The problem is
solved.
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
board service
check” on
page 153
Replace the power
supply. See
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.
4514-330
Diagnostics and troubleshooting
153
Содержание MS312
Страница 11: ...Part number index 335 Part name index 339 4514 330 Table of contents 11 ...
Страница 12: ...4514 330 Table of contents 12 ...
Страница 182: ...4514 330 182 ...
Страница 214: ...5 Remove the three screws B and then remove the left front mount B 4514 330 Parts removal 214 ...
Страница 230: ...5 Remove the four screws B and then remove the right front mount B 4514 330 Parts removal 230 ...
Страница 232: ...Cartridge plunger removal 1 Open the front door 2 Tilt the cartridge plunger 4514 330 Parts removal 232 ...
Страница 234: ...b Set the spring over the plunger 4514 330 Parts removal 234 ...
Страница 240: ...3 Squeeze the latches B to release the left and right links B 4514 330 Parts removal 240 ...
Страница 262: ...c Bring the cable in front of the two cable holders near the ACM shaft 4514 330 Parts removal 262 ...
Страница 263: ...d Loop the cable behind the right cable holder e Twist the cable so that it forms a loop 4514 330 Parts removal 263 ...
Страница 267: ...11 Disconnect the two springs D D 4514 330 Parts removal 267 ...
Страница 269: ...15 Rotate and then remove the 2nd pickup bushing 16 Pull out the shaft and remove the ACM 4514 330 Parts removal 269 ...
Страница 284: ...3 Swing the right cover backward to remove 4 Remove the screw D 4514 330 Parts removal 284 ...
Страница 286: ...4514 330 286 ...
Страница 291: ...4514 330 291 ...
Страница 293: ...Assembly 1 Covers 4514 330 Parts catalog 293 ...
Страница 295: ...Assembly 2 Electronics 1 1 2 3 4 5 7 8 9 6 4514 330 Parts catalog 295 ...
Страница 297: ...Assembly 3 Electronics 2 4 3 2 1 6 5 4514 330 Parts catalog 297 ...
Страница 299: ...4514 330 Parts catalog 299 ...
Страница 300: ...Assembly 4 Frame 2 5 6 9 10 11 13 14 12 8 1 4 4 3 7 4514 330 Parts catalog 300 ...
Страница 302: ...4514 330 Parts catalog 302 ...
Страница 303: ...Assembly 5 Option trays 3 4 5 6 1 2 4514 330 Parts catalog 303 ...
Страница 306: ...4514 330 Parts catalog 306 ...
Страница 308: ...4514 330 308 ...
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Страница 314: ...4514 330 314 ...
Страница 326: ...4514 330 326 ...
Страница 338: ...4514 330 Part number index 338 ...
Страница 342: ...4514 330 Part name index 342 ...