When the main switch turns on, the CPU checks the frequency of the power
(AC) for 500 ms; this is done in case phase control mode is selected later.
Then the CPU turns on the main fusing lamp. After 3 more seconds, the
secondary fusing lamp is turned on. This delay reduces the surge current
after the main switch is turned on.
Both lamps are turned on to raise the temperature of the hot roller’s surface.
When the thermistor detects the operating temperature (185
°
C), the copier
turns off the secondary fusing lamp, and starts fusing idling for 100 seconds
to warm up the hot roller completely and evenly (the roller has a thicker metal
core), and to distribute the oil. During fusing idling, the temperature is kept at
185
°
C.
When fusing idling is finished, the copier enters the ready condition. The CPU
keeps the temperature at 185
°
C by turning the main fusing lamp off and on.
The lamp is turned off at 190
°
C, and on at 180
°
C.
If the fusing lamp turns on while the exposure lamp is on, the power supplied
to the exposure lamp may fluctuate, possibly degrading the copy quality. To
prevent this, in this machine, the fusing lamp can either stay off or change
from on to off while the exposure lamp is on.
There are two types of fusing unit control: on/off control, and phase control.
The mode can be selected with SP1-104.
IMAGE FUSING (A204/A206/A207 COPIERS)
A207/A208/A211
1-36
SM
Summary of Contents for Aficio FT4027
Page 1: ...FT5535 5035 4527 4027 4522 4022 FIELD SERVICE MANUAL ...
Page 4: ...SECTION 1 OVERALL MACHINE INFORMATION ...
Page 9: ...SECTION 2 COMPONENT LAYOUT AND DESCRIPTION ...
Page 10: ...1 MACHINE CONFIGURATION 1 1 COPIER Rev 7 95 FSM 2 1 FT5535 4527 4522 ...
Page 16: ...3 2 DUPLEX COPYING A156 copier A160 A162 copier Rev 7 95 FSM 2 7 FT5535 4527 4522 ...
Page 24: ...SECTION 3 INSTALLATION ...
Page 51: ...SECTION 4 SERVICE TABLES ...
Page 116: ...SECTION 5 REPLACEMENT AND ADJUSTMENT ...
Page 187: ...SECTION 6 TROUBLESHOOTING ...
Page 235: ...SECTION 7 DF61 AUTO REVERSE DOCUMENT FEEDER Machine Code A548 ...
Page 251: ...SECTION 8 PS290 280 PAPER TRAY UNIT Machine Code A549 550 ...
Page 267: ...SECTION 9 PS270 PAPER TRAY UNIT Machine Code A553 ...
Page 282: ...SECTION 10 ST26 20 BIN SORTER STAPLER Machine Code A554 ...
Page 315: ...SECTION 11 ST10 10 BIN SORTER STAPLER Machine Code A555 ...
Page 333: ...SECTION 12 CS220 20 BIN SORTER MINI α Machine Code A556 ...
Page 346: ...SECTION 13 CS130 10 BIN SORTER MICRO α Machine Code A557 ...
Page 357: ...APPENDIX ...
Page 362: ...TECHNICAL SERVICE BULLETINS ...
Page 399: ...Tech Service Bulletin No 4027 4527 5035 5535 4022 4522 010 Page 5 of 6 Continued ...
Page 400: ...Tech Service Bulletin No 4027 4527 5035 5535 4022 4522 010 Page 6 of 6 ...
Page 503: ...Section 1 Overall Machine Information ...
Page 509: ...2 MACHINE CONFIGURATION 2 1 COPIER A204V500 wmf MACHINE CONFIGURATION A207 A208 A211 1 6 SM ...
Page 618: ...SECTION 3 20 BIN SORTER STAPLER ST30 A664 ...