Konica Minolta 7155 User Manual

OTHER KINDS OF CONTROL
2-P-5
2 UNIT EXPLANATION
[3] Cooling Fan Control
FM1 (main body cooling/1), FM2 (write section
cooling), FM5 (cleaner cooling), FM6 (paper exit
/F), FM7 (paper exit/R), and FM8 (main cooling
/2) are controlled by PRCB (printer control
board) directly. FM9 (scanner cooling) is driven
by SCDB (scanner drive board). FM10 (ADU
reverse motor cooling) is driven by ADUDB (ADU
drive board) and is controlled by PRCB. FM13
(power supply cooling) is driven by DCPS (DC
power supply unit).
1. Operation
A 24 VDC motor is used for each cooling fan.
a. FM1 (main body cooling/1)
(1) ON timing
• During warm-up, starts rotating at a low speed
when M2 (drum) is turned ON.
• During copying, held rotating at a high speed.
When copying is completed, rotates at a high
speed for the specified time according to the
temperature in the machine, then starts rotat-
ing at a low speed.
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7272ma2015
ADUDB
FM10
PRCB
SCDB
IO DTXD
IO DCLK
ADU LATCH
IO UCLK
REQ1
IO URXD
ACK1
ERR OUT1
DCPS
24V1
P.GND
5V2
24V1
S.GND
ADU FAN/1
ADUFAN EM/1
P.GND
FM8
FM7
FM6
FM9
FM13
FM5
FIXFAN D
CLFAN EM
CLNFAN D
CLFAN HL
P.GND
FIXFAN3 EM
P.GND
24V DRV
SCANFAN CONT-18
SCANFAN EM
24V1
P.GND
FAN1
FAN2
FAN3
EM
P.GND
FIXFAN D
FIXFAN2 EM
P.GND
FM2
WRFAN1 EM
WRFAN1 D
WRFAN1 HL
P.GND
FM1
MAINFAN EM
MAINFAN D
MAINFAN HL 20
P.GND
FIXFAN D
FIXFAN1 EM
P.GND
BINF_D
BINFF_EM
GND
FM12
(7255/7272)
MODEL MANUAL REVISED EDITION DATE PAGE METHOD
SERVICE MANUAL Dec. 2003
7155/7165/7255/7272
2-P-3 REPLACEMENT
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Konica Minolta 7155 Specifications

General

Brand	Konica Minolta
Model	7155
Category	All in One Printer
Language	English