
Action
Yes
No
Step 4
Properly connect all the cables on the controller board.
Does the error remain?
The problem is
solved.
Go to step 5.
Step 5
Unplug the cable JPS1 from the controller board, and verify the
following voltages from the cable:
•
+5 V at pins 11, 12, 13, 14, 15, 16
•
GND at pins 18, 20
Are the voltages correct?
Go to step 7.
Go to step 6.
Step 6
Replace the power supply.
Does the error remain?
The problem is
solved.
Contact the next
level of support.
Step 7
Is the control panel functioning properly?
Go to step 9.
Go to control panel
service check. Go to
“Control panel
service check” on
page 155
.
Step 8
Perform the control panel service check. Go to
.
Does the error remain?
Go to step 9.
The problem is
solved.
Step 9
Is the LED on the bottom of the controller board illuminating?
Go to step 6.
Replace the
controller board. Go
to
Control panel button service check
Action
Yes
No
Step 1
Are the control panel display and control panel indicator light
illuminated?
Go to step 2.
Perform a control
panel service check.
Go to
.
Step 2
POR into the Diagnostics menu and perform a button test:
Diagnostics Menu
>
HARDWARE TESTS
>
Button Test
Did the printer pass the test?
Go to step 4.
Go to step 3.
4514-330
Diagnostics and troubleshooting
154
Summary of Contents for MS312
Page 11: ...Part number index 335 Part name index 339 4514 330 Table of contents 11 ...
Page 12: ...4514 330 Table of contents 12 ...
Page 182: ...4514 330 182 ...
Page 214: ...5 Remove the three screws B and then remove the left front mount B 4514 330 Parts removal 214 ...
Page 230: ...5 Remove the four screws B and then remove the right front mount B 4514 330 Parts removal 230 ...
Page 234: ...b Set the spring over the plunger 4514 330 Parts removal 234 ...
Page 240: ...3 Squeeze the latches B to release the left and right links B 4514 330 Parts removal 240 ...
Page 267: ...11 Disconnect the two springs D D 4514 330 Parts removal 267 ...
Page 284: ...3 Swing the right cover backward to remove 4 Remove the screw D 4514 330 Parts removal 284 ...
Page 286: ...4514 330 286 ...
Page 291: ...4514 330 291 ...
Page 293: ...Assembly 1 Covers 4514 330 Parts catalog 293 ...
Page 295: ...Assembly 2 Electronics 1 1 2 3 4 5 7 8 9 6 4514 330 Parts catalog 295 ...
Page 297: ...Assembly 3 Electronics 2 4 3 2 1 6 5 4514 330 Parts catalog 297 ...
Page 299: ...4514 330 Parts catalog 299 ...
Page 300: ...Assembly 4 Frame 2 5 6 9 10 11 13 14 12 8 1 4 4 3 7 4514 330 Parts catalog 300 ...
Page 302: ...4514 330 Parts catalog 302 ...
Page 303: ...Assembly 5 Option trays 3 4 5 6 1 2 4514 330 Parts catalog 303 ...
Page 306: ...4514 330 Parts catalog 306 ...
Page 308: ...4514 330 308 ...
Page 312: ...4514 330 312 ...
Page 314: ...4514 330 314 ...
Page 326: ...4514 330 326 ...
Page 338: ...4514 330 Part number index 338 ...
Page 342: ...4514 330 Part name index 342 ...