7155/7165/7255/7272 LIST OF DIFFERENCE
LIST OF DIFFERENCE FOR 7155/7165 AND 7255/7272
Classification 7155 7165 7255 7272 Reason
Specification
Warm-up time 5.5 minutes
max.(at 68 ºF
rated voltage)
6.5 minutes
max.(at 68 ºF
rated voltage)
5 minutes
max.(at 68 ºF
rated voltage)
6 minutes
max.(at 68 ºF
rated voltage)
Change of fixing
control tempera-
ture
First copy out time
(8.5x11)
3.4 seconds or
shorter
3.1 seconds or
shorter
3.4 seconds or
shorter
3.0 seconds or
shorter
CPM change
Continuous copy
speed (8.5x11)
55 copies
(8.5x11)
65 copies
(8.5x11)
55 copies
(8.5x11)
72 copies
(8.5x11)
CPM change
Consumables
Developer
Common to 7155/7165/7255/7272
Toner
Drum
Drive Section
Liner speed ·280mm/s
(standard)
·185mm/s
(thick paper)
·320mm/s
(standard)
·185mm/s
(thick paper)
·280mm/s
(standard)
·172.5mm/s
(thick paper)
·345mm/s
(standard)
·172.5mm/s
(thick paper)
CPM change
Write Section
Polygon motor
revolutions
·33,070rpm
(standard)
·21,850rpm
(thick paper)
·37,795rpm
(standard)
·21,850rpm
(thick paper)
·33,070rpm
(standard)
·40,748rpm
(thick paper)
·40,748rpm
(standard)
·40,748rpm
(thick paper)
CPM change
Paper Feed Section
Paper feed tray 500 copies x 2
1500 copies x 1
500 copies x 2
1500 copies x 1
1500 copies x 1
1000 copies x 1
550 copies x 2
1500 copies x 1
1000 copies x 1
550 copies x 2
External Section
Cooling for devel-
oping section
Duct Duct Duct + develop-
ing cooling fan
Duct + develop-
ing cooling fan
Improvement in
developing
suction
Fixing section
Fixing upper roller Common to
7155/7255
Common to
7165/7272
Common to
7155/7255
Common to
7165/7272
Fixing heater
lamp /1
ADU Section
ADU drive board Exclusively for
7155
Exclusively for
7165
Common to
7255/7272
Common to
7255/7272
ADU linear
speed change
Transfer and
separation corona
unit
Included Included Automation of
cleaning opera-
tion
Control
Image control pro-
gram
Exclusively for
7155
Exclusively for
7165
Exclusively for
7255
Exclusively for
7272
CPM change
Printer control pro-
gram
MODEL MANUAL REVISED EDITION DATE PAGE METHOD
SERVICE MANUAL Dec. 2003
7155/7165/7255/7272
1REPLACEMANT
4
4