Konica Minolta bizhub C658 Service Manual page 1895

bizhub C658/C558/C458/C368/C308/C258
• If a print job is received during the alternative temperature control, control is performed according to the settings made in "Enhanced
Security" of "Service Mode". Reference:
alternative temperature control]
(4) Sensor disconnection detection control
• If the temperature of the temperature sensor or thermistor fails to reach the specified temperature in the given period after the warm-up
started, the sensor is judged to have disconnection, and the trouble code will appear.
Roller name
Heating roller assy Heating roller temperature sensor: TEMS
Heating roller thermistor2: TH2
Heating roller thermistor1: TH1
14.3.12 Fusing PPM control
(1) PPM control
• To achieve the intended level of fixability of printed images, the PPM control reduces the number of printed pages per minute by
widening the distance between sheets of paper.
PPM mode
Low temperature
environment mode
High humidity environment
mode *2
Reduced power supply
mode
Thin paper mode
Low-power Support
Selection *3
• *1: Exemplary calculation of print speed: If 55 ppm can be achieved at a print productivity of 100% on A4 plain paper, a change in print
productivity to 90% results in 49.5 ppm.
• *2: Execution of the control for the high humidity environment mode can be prohibited when "No. 5 PPM control (high humidity
environment mode) prohibited" is turned ON in [Service Mode] -> [Enhanced Security] -> [Engine FW DIP SW].
• *3: By setting the [Service Mode] -> [Security Selection] -> [Engine FW Dip SW] "No. 11: Low Power Support Selection" to "ON", the low
power support selection can prohibit the execution of controls.
• *4: For recycled paper, the print productivity will be set to 70% when "Mode 3" is selected for warm-up choice. For thin paper, the print
productivity will be set to 70% regardless of the mode setting for warm-up choice.
14.3.13 Fusing unit new article detection
• The fusing unit is not provided with any new article detection mechanism. If the fusing unit is replaced with a new one, therefore, "New
Release" of "Fusing Unit" must be performed in [Counter] -> [Life] of the Service Mode.
NOTE
▪ For the life of the fusing unit, refer to
part replacement time (bizhub
[Service Mode] -> [Enhanced Security] -> [Engine FW DipSW] -> [Switch No. 4/Fusing unit
Sensor name: symbol
Control execution
conditions
Room temperature at the To achieve the intended
start of the print cycle is level of fixability under low
18°C or less temperature environment
Environmental humidity at To suppress occurrence of
the start of the print cycle paper curl under high
is a predetermined value or humidity environment
more
Only an insufficient power To achieve the intended
is supplied to the IH coil, level of fixability under low
resulting in a fusing power supply condition
temperature lower than a
predetermined value
"100%" is selected for To increase the print
"PPM Control Choice" of productivity of thin paper
the service mode and recycled paper. To
increase productivity
during printing using thin
paper.
* The choice of 100% may
result in paper curling.
Where the DipSW setting To increase productivity
is set to "OFF" (prioritizing when finishers are
productivity) installed.
The choice of 100% may
result in warm up time
lengthening.
F.6.1 Consumable/part replacement time (bizhub C368/C308/C258)
C658/C558/C458).
O THEORY OF OPERATION bizhub C658/C558/C458/C368/C308/C258 > 14.
C3925 Fusing sensor wire breaks detection (Center of the
heating side)
C3926 Fusing sensor wire breaks detection (Middle of the
heating side)
C3922 Fusing sensor wire breaks detection (Edge of the
heating side)
Purpose Specific controls
To prevent fixability from
being degraded in a multi-
print cycle, paper-to-paper
distance is widened to
thereby limit a decrease in
the fusing temperature.
Paper-to-paper distance is
widened in a multi-print
cycle run under high
humidity environment so
as to prevent paper from
curling, thereby achieving
a required fusing
temperature.
To prevent fixability from
being degraded in a multi-
print cycle, paper-to-paper
distance is widened to
thereby limit a decrease in
the fusing temperature.
Paper-to-paper distance is
narrowed to thereby
increase productivity.
Paper-to-paper distance is
narrowed to thereby
increase productivity.
O-120
FUSING SECTION (bizhub C658/C558)
Trouble code
Print productivity *1
100%
90%
80%
70%: default value
60%
50%
100%: default value
70%
50%
70%: default value
50%
100%
70%: default value *4
100%
70%: default value
and F.6.2 Consumable/