121 errors
121 error messages
Error code Description
Action
121.07
Fuser has been on for more than allowed after a
gap blowout, and the temperature is still too cold.
Go to
“Fuser service check” on page 138
121.08
Fuser was under temp when page was in fuser.
121.20
Fuser undertemp during steady state control. Can
occur in printing or standby modes.
121.22
Fuser did not warm enough to start line voltage
detection.
121.23
Fuser took too long to heat to line detection temp.
121.24
Fuser never reached detection temperature.
121.25
After line voltage detection, control did not roll
over to steady state control in time.
121.26
Failed to reach temperature during warm up.
121.28
Failed to reach EP warm up temperature in time.
121.29
Fuser failed to reach pre
‑
heat temperature for
motor start during warm up.
121.30
Fuser failed to reach printing temperature by the
time a page reached the fuser.
Go to
“Fuser service check” on page 138
121.31
Fuser is too hot. Global temperature check.
121.32
Open fuser main thermistor.
121.33
Open fuser edge thermistor.
121.34
Open fuser backup roll thermistor.
121.35
Attempting to POR after receiving a 121.34.
121.36
Fuser did not heat to allow compression jog.
121.37
Fuser heated faster than allowed during line
voltage detection.
Fuser service check
Note:
A 121.32 fuser error may occur if the ambient temperature is below the freezing point. Printers are
optimized to operate in an environment where temperature is between 60 and 90°F and relative
humidity is between 8 to 80%.
4514-6xx
Diagnostics and troubleshooting
138
Summary of Contents for M3150
Page 12: ...Part name index 393 4514 6xx Table of contents 12 ...
Page 20: ...4514 6xx 20 ...
Page 38: ...4514 6xx 38 ...
Page 172: ...4514 6xx 172 ...
Page 246: ...3 Remove two screws A and then remove the cooling fan mount A 4514 6xx Parts removal 246 ...
Page 256: ...5 Remove the four screws B and then remove the right front mount B 4514 6xx Parts removal 256 ...
Page 260: ...b Set the spring over the plunger 4514 6xx Parts removal 260 ...
Page 277: ...3 Squeeze the latches B to release the left and right links B 4514 6xx Parts removal 277 ...
Page 300: ...3 Place the printer on its rear side 4 Release the sensor flag A 4514 6xx Parts removal 300 ...
Page 301: ...5 Remove the screw B 6 Remove the sensor flag bracket C 4514 6xx Parts removal 301 ...
Page 323: ...3 Swing the right cover backward to remove 4 Remove the screw D 4514 6xx Parts removal 323 ...
Page 333: ...4514 6xx 333 ...
Page 335: ...Assembly 1 Covers 4514 6xx Parts catalog 335 ...
Page 338: ...4514 6xx Parts catalog 338 ...
Page 339: ...Assembly 2 Electronics 1 1 2 3 4 5 7 9 10 11 6 8 12 4514 6xx Parts catalog 339 ...
Page 342: ...4514 6xx Parts catalog 342 ...
Page 343: ...Assembly 3 Electronics 2 4 3 2 1 5 6 8 9 7 4514 6xx Parts catalog 343 ...
Page 345: ...4514 6xx Parts catalog 345 ...
Page 346: ...Assembly 4 Frame 10 11 12 13 14 9 1 5 6 7 8 4 4 2 3 4514 6xx Parts catalog 346 ...
Page 349: ...Assembly 5 Option trays 3 4 5 6 1 2 4514 6xx Parts catalog 349 ...
Page 354: ...4514 6xx Parts catalog 354 ...
Page 356: ...4514 6xx Parts catalog 356 ...
Page 364: ...4514 6xx 364 ...
Page 376: ...4514 6xx 376 ...
Page 386: ...4514 6xx Index 386 ...
Page 392: ...4514 6xx Part number index 392 ...
Page 398: ...4514 6xx Part name index 398 ...