PIN No.
Signal name
IN/OUT
Connected to
Description
204
PORTOUT20
OUT
(Not used)
205
OP-LATCH
OUT
Tr array IC
Latch signal for operation circuit. Data latch at LOW.
206
MRPS2
OUT
Tr array IC
Mirror speed control signal. Mirror speed 2 at LOW.
207
MRPS1
OUT
Tr array IC
Mirror speed control signal. Mirror speed 1 at LOW.
208
PORTOUT16
OUT
(Not used)
209
PORTOUT15
OUT
(Not used)
210
3.3V
Power
211
TC
OUT
Tr array IC
Transfer charger control signal. ON at HIGH.
212
GRIDL
OUT
Tr array IC
Main charger grid control signal. ON at HIGH.
213
GND
Power
214
MC
OUT
Tr array IC
Main charger control signal. ON at HIGH.
215
BIASL
OUT
Tr array IC
DV bias voltage control signal. ON at HIGH.
216
BIASH
OUT
Tr array IC
DV bias voltage control signal. ON at HIGH.
217
BIAS
OUT
Tr array IC
DV bias output control signal. ON at HIGH.
218
CL
OUT
Tr array IC
Copy lamp control signal. ON at HIGH.
219
VFMCNT
OUT
Tr array IC
Ventilation fan rotating speed control signal. Low speed
at HIGH, high speed at LOW.
220
VFM
OUT
Tr array IC
Ventilation fan control signal. Fan ON at HIGH.
221
LDEN
OUT
Tr array IC
Laser circuit control signal. Laser circuit ON at HIGH.
222
PMD
OUT
Tr array IC
Polygon motor control signal. Polygon motor ON at HIGH.
223
5V
Power
224
MM
OUT
Tr array IC
Main motor control signal. Main motor ON at HIGH.
225
MPFS
OUT
Tr array IC
Manual paper feed solenoid control signal. Multi paper
feed ON at HIGH.
226
GND
Power
227
CPFS2
OUT
Tr array IC
Second cassette paper feed solenoid control signal.
Second cassette paper feed at HIGH.
228
CPFS1
OUT
Tr array IC
Cassette paper feed solenoid control signal. One-stage
cassette paper feed at HIGH.
229
TM
OUT
Tr array IC
Toner motor drive output (+)
230
TM_
OUT
Tr array IC
Toner motor drive output (–)
231
CPUD15
IN/OUT
CPU
CPU data bus
232
CPUD14
IN/OUT
CPU
CPU data bus
233
CPUD13
IN/OUT
CPU
CPU data bus
234
CPUD12
IN/OUT
CPU
CPU data bus
235
CPUD11
IN/OUT
CPU
CPU data bus
236
5V
Power
237
CPUD10
IN/OUT
CPU
CPU data bus
238
CPUD9
IN/OUT
CPU
CPU data bus
239
GND
Power
240
CPUD8
IN/OUT
CPU
CPU data bus
241
CPUD7
IN/OUT
CPU
CPU data bus
242
CPUD6
IN/OUT
CPU
CPU data bus
243
CPUD5
IN/OUT
CPU
CPU data bus
244
CPUD4
IN/OUT
CPU
CPU data bus
245
CPUD3
IN/OUT
CPU
CPU data bus
246
CPUD2
IN/OUT
CPU
CPU data bus
247
CPUD1
IN/OUT
CPU
CPU data bus
248
CPUD0
IN/OUT
CPU
CPU data bus
249
3.3V
Power
AL-1000/1010
12-12