Oki C531 Maintenance Manual

44951501TH Rev.2
8-4
Oki Data CONFIDENTIAL
8. CONNECTION DIAGRAMS
Unit Circuit diagram and composition Part drawing Resistance value
Fuser unit
2
Upper roller heater #1
Upper roller heater #2
3
1
4
Thermostat
Upper thermistor
A1
A2
Lower thermistor
B1
B2
Frame thermistor
A3
A4
B3
B4
Fuse
2A5 4 3 2 11
3B1 2 3 44
Between pins 1 and 2: Several ohms to several tens of ohms
Between pins 3 and 4: Several ohms to several tens of ohms
Between pins A1 and A2: Approx. 590 k
to 5338 k (0 to 93°C)
Between pins B1 and B2: Approx. 104.5 k
to 806.5 k (0 to 43°C)
Between pins A3 and A4: Approx. 104.5 k
to 806.5 k (0 to 43°C)
Between pins B3 and B4: Open
A5 blank NC

Oki C531 Specifications

General

Print Technology	LED
Print Speed (Black)	30 ppm
Print Speed (Color)	30 ppm
Duplex Printing	Yes
Operating System Compatibility	Windows, Mac OS, Linux
Weight	22 kg
Connectivity	USB 2.0, Ethernet
Media Size	A4, A5, A6, B5, Letter, Legal, Envelopes
Resolution	Up to 1200 x 600 dpi
Input Capacity	250 sheets