Xerox Phaser 4500 Service Manual page 480
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Also See for Phaser 4500:
- Service manual (537 pages) ,
- Reference manual (204 pages) ,
- Quick reference manual (11 pages)
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Wiring Diagrams
10-24
Signal line
name
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
Description
Phaser 4500/4510 Service Manual
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Table of Contents
Troubleshooting
