Specifications

PIN No. Signal name IN/OUT Connected to Description
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
250 /CPUWR IN CPU CPU write signal
251 /CPURD IN CPU CPU read signal
252 GND Power
253 CPUCLK IN CPU CPU system clock
254 GND Power
255 TEST PORT1 IN AUTO SCAN TEST High: Normal Low: Test
256 /SCANST IN CPU (I/O) Scanner process start signal
∗ The signals which are hatched are added or revised to or from AL-1000.
(3) Expanded PWB interface section
The MCU PWB and the expanded PWB are connected by CN5 connector to make serial communication (UART).
The FAX PWB uses signals in Table A, and the PCL PWB uses signals in Table B.
Recognition of FAX PWB or PCL PWB:
If /FREADY is LOW, the FAX PWB expansion is recognized.
If /PREADY is LOW, the PCL PWB expansion is recognized.
DM-1505
11 – 10