COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 11 TROUBLESHOOTING11-40Dimensionsb|a-c|Measurement*7.3±0.5mm0.5 mm or less3. Adjusting the Lower Roller Pressure (nip)The nip width must be as indicated in Table 11-203. Otherwise, adjust it by turningthe pressure adjusting nut.Figure 11-246Note:a and c represent points 10 mm from both ends of copy paper.*Take measurements when both upperand lower rollers are adequately warm.Table 11-203a. Taking MeasurementsWait 15 min after the end of the machine’s warm-up period; then, make 20 A4 copiesbefore taking measurements.1) Select A3.2) Open the copyboard cover.3) Start service mode ( ), and select ‘NIP’ (nip adjustment).4) Press the user mode key ].• A3 copy paper is picked up and discharged as shown in Figure 11-246 ready formeasurement.]4]FeedingdirectioncaA3 paperCenter ofpaperbDownload service manual and resetter printer at http://printer1.blogspot.com
