Skew Adjustment/Skew Adjustment Reset; Ph Unit Temperature Detection Control - Konica Minolta BizHub C360 Service Manual

9. WRITE SECTION (PH SECTION)
9.2.8

Skew adjustment/skew adjustment reset

• Certain specific conditions require that a skew adjustment be performed manually. There
may also be cases where the "color skew correction control" cannot be executed for
some reason.
The machine provides functions that allow you to make "skew adjustments" manually
and to reset the "skew adjustment data" against these situations.
• Instead of making an automatic adjustment using "color skew correction control", the ref-
erence position of the skew correction motor can be manually set by entering "Skew
value" in "Skew adjustment" of the Service Mode. For details of the Service Mode, see
"Skew adjustment and skew adjustment reset" of "Service Mode" in "Field Service".
A. Possible conditions and causes
• The print head unit is replaced with a new one.
• The alarm code "P-14: skew correction trouble" is displayed.
• A door is opened or the main power switch is turned OFF during color skew correction
control, causing the skew correction sequence to be halted; as a result, the current posi-
tion of the skew correction motor is unknown.
• The skew correction motor position information set and backed up in the main body is
lost when, for example, the service EEPROM board is replaced with a new one.
9.2.9

PH unit temperature detection control

• The temperature inside the PH unit is measured at intervals of 1 min. by the PH ther-
mistor mounted in the PH unit.
• The detected temperature data is recorded to form part of the environmental information
data and used for controlling, for example, color registration, 1st image transfer output
determination, and image transfer roller cleaning.
PH thermistor (TH2)
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Theory of Operation Ver. 1.0 Jul. 2009
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