Konica Minolta bizhub C658 Service Manual page 1813

bizhub C658/C558/C458/C368/C308/C258
5.3.8 Developing unit detection
• The developing unit of each color of toner is provided with a TCR sensor. The sensor detects different states of the corresponding
developing unit.
[1]
[1] TCR sensor
NOTE
▪ For the life of the unit, refer to
replacement time (bizhub
(1) Unit mounting detection
• The TCR sensor detects the mounting condition of the developing unit.
• When developing unit is detected in the mounted condition, control now proceeds to the "new article detection control".
(a) Detection timing
• The unit mounting detection control is performed under any of the following conditions:
"The power switch is turned ON (with the front door and right door are closed)"
"The front door or right door is opened and closed with the power switch in ON position"
(b) Operation when it is detected that no units are mounted
• The message "Developing Unit Installation Error" appears on the control panel and the machine prohibits initiation of any new print
cycle. The message "Developing Unit Installation Error" disappears as soon as a developing unit is mounted.
(2) New article detection
• The TCR sensor detects whether the developing unit is new or not.
(a) Detection timing
• The new article detection control is performed if it is determined through the "unit mounting detection" control that the developing unit is
correctly mounted in place.
(b) Operation when the developing unit is determined not to be new
• The new article detection control is terminated.
(c) Operation when the developing unit is determined to be new
• The TCR sensor automatic adjustment control (calibration) is performed.
• The image stabilization control is performed.
• The life counter of the developing unit is reset to zero.
• After the above controls are performed, the operation proceeds to the life detection control.
• The result of the new article detection is recorded in the eMMC board of the main body.
• The life counter is available for the developing unit of each color. The counter value is recorded in the eMMC board of the main body.
(3) New release disable mode
• The new article detection-disabled mode is used when a new developing unit is temporarily used for performing troubleshooting
procedures of a machine.
• No new article detection control is performed for the developing unit when the new article detection-disabled mode is used.
• The new article detection-disabled mode should be used only for troubleshooting purposes.
NOTE
▪ See " I.7.3.9 Engine FW
F.6.1 Consumable/part replacement time (bizhub C368/C308/C258)
C658/C558/C458).
DipSW" for more detailed operating precautions.
O THEORY OF OPERATION bizhub C658/C558/C458/C368/C308/C258 > 5.
- -
O-38
DEVELOPING SECTION
and F.6.2 Consumable/part