Canon NP6251 Service Manual page 308

This chapter explains the principles used to fuse toner images to transfer medium in view of the
functions of electrical and mechanical units and in relation to their timing of operation. It also shows how
these units may be disassembled/assembled and adjusted.
I. OUTLINE OF OPERATIONS..............6-1
A. Outline ...........................................6-1
B. Fixing Drive Assembly...................6-3
C. Controlling the Fixing
Temperature ..................................6-5
D. Reciprocating Mechanism for
the Main Thermistor (TH1) ............6-10
E. Reciprocating Mechanism for
the Upper Separation Claw ...........6-11
COPYRIGHT © 1997 CANON INC.
CHAPTER 6
FIXING SYSTEM
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
F. SSR Error Detection Circuit for
the Fixing Heater ..........................6-12
G. Locking Operation
(fixing/feeding unit) ........................6-14
H. Error Detection Circuit ...................6-15
II. DISASSEMBLY AND ASSEMBLY......6-18
A. Fixing Assembly ............................6-19
B. Delivery Assembly .........................6-36