Drum unit installation error in konica minolta C552 printer how to solve the error?

SOURCE: konica minolta bizhub 350

• The Fusing Roller Sub Thermistor does not
detect the required temperature within 30 sec.
after a warm-up cycle has begun; therefore, the
copier does not complete the warm-up cycle.
• The temperature of the Fusing Rollers does not
reach the required level even after the set period
of time has elapsed during a warm-up cycle.
1
Check that the H1[ fuser lamp] comes on when the Main Power
Switch is set to ON, and correct or replace as necessary.
- -
2
Check that the H2 comes on when the Main Power
Switch is set to ON, and correct or replace as necessary.
- -
3
Check the installation of the TH1 and the TH2, and
correct or clean as necessary.
- -
4
Check the operation of the TH1.
Remove CN80 (4P), and then check that the resistance
across CN80-2 and -3 on the Thermistor is
infinity.
- -
5
Check the operation of the TH2.
Remove CN81 (4P), and then check that the resistance
across CN81-2 and -3 on the Thermistor is
infinity.
- -
6
Check the continuity of the H1.
Correct or replace as necessary.
- -
7
Check the continuity of the H2.
Correct or replace as necessary.
- -
8 Change PU1 - -
9 Change PWB-A

SOURCE: Konica Minolta 2400W Error Message

remove the opc drum.

there are two black plastic flags that detect paper jams. one is high up just below the fuser unit. The other is roughly half way up the printer between two small transfer rollers very close to the opto sensor. Apparently it frequetly gets jammed behind the plastic cover, and once jammed you would never realise it is there.

I managed to prise it out from behind the cover and the "paper jam at transfer roller" message was cleared.

Unless you know it is there and hiding it is not obvious at all that anything is wrong.

Ian

SOURCE: After replacing black toner cartridge printer displays Drum Low

Ask you companey that surives you printer to look at it

SOURCE: Bizhub Konica Minolta - Error Code C1183

First check the alignment front and rear of the finisher, check the finisher exit guide rollers if the paper is exiting properly, open both rear and the front cover and check the lower gears attach is the up/down drive belt. that lower gear one might be broken by the pin slot.

Konica Minolta Error Codes and Solutions

• 210 Answers
• Posted on Aug 23, 2009

SOURCE: error c2557 konica minolta 250/NEC IT2530

Reset it, start it with the right door open, go to service mode, clear the counters for drum and developer and go to functions menu. Close the right door and start immediately the F8 function. It should work.