•
Check to ensure the correct printer driver for the installed software is being used. An incorrect printer
driver for the installed software can cause problems. Incorrect characters could print, and the copy may
not fit the page correctly.
Gray background or toner fog check
Actions
Yes
No
Step 1
a
Turn off the printer, wait for 10 seconds, and then turn on the
printer.
b
From the control panel:
1
Increase the toner darkness in the Quality menu.
Note:
8 is the factory default setting.
2
Set the paper type, texture, and weight in the Paper menu
to match the paper loaded.
Does the problem remain?
Go to step 2.
The problem is
solved.
Step 2
Check if the printer is using a genuine and supported Lexmark
toner cartridge.
Note:
If the printer is using a third
‑
party cartridge, then refer the
users to their cartridge supplier.
Is the printer using a genuine and supported toner cartridge?
Go to step 4.
Go to step 3.
Step 3
Install a genuine and supported toner cartridge.
Does the problem remain?
Go to step 4.
The problem is
solved.
4514-330
Diagnostics and troubleshooting
39
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 ...