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 87
.
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 87
.
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
Action
Yes
No
Step 1
a
Restore the engine settings to their defaults:
Diagnostics Menu
>
Printer Setup
>
Defaults
b
Restore the EP setup settings to their defaults:
Diagnostics Menu
>
EP Setup
>
Defaults
Does the problem remain?
Go to step 2.
The problem is solved.
4514
Diagnostic information
87
Summary of Contents for M1140
Page 18: ...4514 18 ...
Page 20: ...4514 20 ...
Page 142: ...4514 142 ...
Page 197: ...b Set the spring over the plunger 4514 Repair information 197 ...
Page 204: ...3 Squeeze the latches B to release the left and right links B 4514 Repair information 204 ...
Page 228: ...10 Remove the screw C and then detach the trailing edge sensor A 4514 Repair information 228 ...
Page 229: ...11 Disconnect the two springs D 4514 Repair information 229 ...
Page 246: ...3 Swing the right cover backward to remove 4 Remove the screw D 4514 Repair information 246 ...
Page 248: ...4514 248 ...
Page 253: ...4514 253 ...
Page 255: ...Assembly 1 Covers 4514 Parts catalog 255 ...
Page 257: ...Assembly 2 Electronics 1 4514 Parts catalog 257 ...
Page 259: ...Assembly 3 Electronics 2 4 3 2 1 6 5 4514 Parts catalog 259 ...
Page 261: ...4514 Parts catalog 261 ...
Page 262: ...Assembly 4 Frame 4514 Parts catalog 262 ...
Page 264: ...4514 Parts catalog 264 ...
Page 265: ...Assembly 5 Option trays 3 4 5 6 1 2 4514 Parts catalog 265 ...
Page 268: ...4514 Parts catalog 268 ...
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Page 298: ...4514 Part number index 298 ...
Page 302: ...4514 Part name index 302 ...
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