10-22 Phaser 4500/4510 Service Manual
Wiring Diagrams
INTERLOCK BEF Signal indicating that the top cover is open. This signal goes High
when the top cover is open.
FAN ALARM Sub Fan monitor signal. If a trouble occurs, this signal goes High.
EXIT /INB Excitation signal for Exit Motor. Phase /B.
EXIT /INA Excitation signal for Exit Motor. Phase /A.
EXIT INB Excitation signal for Exit Motor. Phase B.
EXIT INA Excitation signal for Exit Motor. Phase A.
EXIT CUR A Current-switching signal for Exit Motor.
EXIT CUR B Current-switching signal for Exit Motor.
A and B Current output to each winding of Exit Motor. Phases A and B.
/A and /B Current output to each winding of Exit Motor. Phases A
and B.
/PRFD Prefeed signal. This is effective only when /RDY is Low.
/CCLK Clock signal. This is sent out simultaneously with /STA or /CMD.
/CMD Command signal. When /CBSY is Low, it is sent out from the
controller in synchronism with /CCLK.
/CPRDY Ready signal for the controller power supply. This signal goes
Low when the controller power supply is ON and, at the same
time, initialization of the CPU is completed. When a trouble occurs
with the CPU, the signal goes High.
/START Print start signal. This is effective only when /RDY is Low.
/CBSY Command busy signal. This goes Low when /CMD is sent out
(except when /SBSY is Low or /PPRDY is High).
/STA Status signal. Status is sent in synchronism with /CCLK when /
SBSY is Low.
/SBSY Status busy signal. This signal is Low when the printer is sending
/STA (except when /CBSY is Low or /CPRDY is High).
/TOP Vertical sync signal for image data. This is periodically sent out
when Laser Unit Motor is in operation.
/RDY Ready signal. This signal is Low in a standby state where
reception of /START is awaited.
/PPRDY Ready signal for the printer power supply. This goes Low when
the printer power supply is turned on and initialization of the CPU
is completed. This signal goes High when the MCP detects an
error.
/BD Horizontal sync signal for image data. This is periodically sent out
when Laser Unit Motor is in operation.
/SLP Control signal for LVPS. This goes Low in power saving mode.
/VDO1 Image data signal. This is sent out in synchronism with /TOP and /
BD. This signal goes High (White) for other than effective data.
/VDO2
Signal line
name
Description