196
6.2.7
Laser Printer Drive Circuit
1.Motor Drive Circuit
The Scanner/Printer Motor is a 4-phase uni-polar PM-type step motor. The step signals (A to nB) are
transmitted to IC26 (the Chopper Drive Circuit) by SHINE(IC3). The chopper current is determined by
the voltage at IC26, Pin3 and Pin13. The Motor has two speeds, Slow and Constant. The Motor is
powered by a +24 VDC supply. When the interlocks are open, the +24 VDC supply is cut off and the
Motor stops rotating.
Pulse
Motor
Scanner / Printer Motor Drive Circuit Block Diagram
SHINE
IC3
+24 VM
1
3
4
6
CN53
Motor
Driver
IC26
A
nA
B
nB
Summary of Contents for Panafax UF-4000
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Page 8: ...8 memo ...
Page 21: ...21 1 4 Control Panel For USA and Canada UF 490 UF 4000 ...
Page 22: ...22 For Other Destinations UF 490 UF 4100 UF 4100 ABBR ...
Page 44: ...44 24 Remove the Pressure Roller 322 25 Remove the Exit Roller 304 24 25 ...
Page 70: ...70 3 10 ILS PC Board CN73 Refer to SC PC Board CN11 ...
Page 72: ...72 3 12 ACI PC Board Refer to Power Supply Unit CN101 ...
Page 232: ...232 801 803 802 Fig 8 Cartridge Unit K A C D E F G H I J B 8 1 3 4 5 6 7 2 2 2 ...
Page 250: ...250 memo ...
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Page 284: ...DZZSM00309 ...