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4
The control panel indicator light switches from solid amber to solid green. The display resets, and then a
line of dots appear.
5
The cooling fan turns on.
6
The fuser heater turns on.
Note:
The fuser takes longer to warm up from a cold start than a warm start.
7
The main drive motor turns on.
8
The EP drive assembly drives the developer shaft located in the imaging unit.
9
The exit rollers turn.
10
Ready
appears on the display.
If no error code is displayed, but a symptom is present, go to
“Base printer symptoms” on page 152
Fixing print quality issues
The symptoms described in this chapter might require replacement of one or more CRUs (Customer
Replaceable Units) designated as supplies or maintenance items, which are the responsibility of the customer.
With the customer's permission, you might need to install a toner cartridge.
Initial print quality check
Before troubleshooting specific print problems, complete the following initial print quality check:
•
Use only genuine Lexmark supplies. Third-party supplies may cause print quality problems.
•
The printer must be in a location that follows the recommended operating environment specifications.
See
“Operating environment” on page 311
•
Check the life status of all supplies. Any supply that is low should be replaced.
•
Load 20
‑
lb plain letter or A4 paper. Make sure the paper guides are properly set and locked. From the
control panel, set the paper size and type to match the paper loaded in the tray.
•
Print a menu settings page. Be sure to keep the original menu settings page to restore the customer’s
custom settings if needed.
•
Verify on the menu settings page if the following are set to their default values:
–
Print resolution: 600 dpi
–
Toner darkness: 8
•
Check the transfer roll for damage. Replace if damaged.
•
Check the toner cartridge and imaging unit for damage. Replace if damaged.
•
Print the print quality pages to see if the problem remains. Use Tray 1 to test print quality problems.
•
Print a print quality test page, and then look for variations in the print from what is expected. Verify if the
settings under EP Setup are set to their default values. See
.
4514-330
Diagnostics and troubleshooting
38
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 ...
Страница 312: ...4514 330 312 ...
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 ...