CANON NP1318
Service Manual

Note: a and c are the dimensions from each edge.

7. Installing 15mm (0.6�)

the Thermoswitch

Confirm that the sensor surface of the thermoswitch is touching the surface of the upper fixing roller evenly. For reference: There is no need to adjust the position of the thermoswitch. If the thermistor is not touching the upper fixing roller evenly, check if the thermoswitch spring is deformed.

Table 4-1 a. Measuring the nip width If the rollers are cool, wait 15 minutes beyond when the copy START indicator begins glowing green, make 20 copies, then measure the nip width. b. Measuring procedure 1) Raise the copyboard cover and make an A3 Ledger size solid black copy. 2) When the leading edge of the copy paper first appears at the delivery port, set the power switch OFF, and open the front door and the paper delivery unit. 3) Turn the fixing unit knob very slightly counterclockwise stop it in that position for 15 seconds, then turn the knob again to deliver the paper completely. 4) Measure the width of the toner area with a glossy surface, as shown in Figure 4-85. 6. Installing the Thermistor Figure 4-87

Thermoswitch

Confirm that the sensor surface of the thermistor is touching the surface of the upper fixing roller evenly. For reference: There is no need to adjust the position of the thermistor. If the thermistor is not touching the upper fixing roller evenly, check if the thermistor spring is deformed.

_-

Figure 4-88

COPYRIGHT 1980CANONINC. 0

CANONNP-1318/1210 SEPT. RN.0 1900PAlWTEO JAPANIlMPAlMf JAPOAI IW AU

4 - 27