Canon PIXMA iP4200 Service Manual - Page 41

4. FAQ (Problems Specific to the iP4200 and Corrective Actions) No. * Function Phenomenon Condition Cause Corrective action Possible call or complaint 1B Skewed paper feeding Print results - Paper feeding from Due to its the cassette, Photo mechanism, Paper Plus Double contact of the PF Sided, 5 x 7 size pinch rollers to the 5 x 7 size paper is uneven, which is likely to cause skewed paper feeding. Change the paper - Paper feeds at feeding method an angle. from the cassette to the auto sheet feeder. - A margin appears on printouts. Improper paper - Paper feeding from In the high - Reduce the - Multiple feeding: the ASF temperature and amount of paper sheets of - Multi-feeding - Skewed paper feeding - Paper jam - Plain paper high humidity environment, paper - Highest print speed becomes wavy; in (Custom setting to the low 5) temperature and - In the high low humidity temperature and environment, paper high humidity curls significantly. set in the ASF to half (approx. 5 mm high). paper feed at the same time. - Paper feeds at an angle. - A paper jam occurs. 2 B Paper feed environment When the - In the low maximum amount temperature and of paper is set in low humidity the ASF, and if the environment paper-return tab fits in a wave or - With the maximum curl of the paper, amount of paper the tab slips and set (13 mm) does not catch paper properly, causing paper feed problems. 3C Print results Skewed paper - Paper feeding from Since coaxial - Align the paper - Paper feeds at feeding (at the the ASF tolerance between guide to the paper an angle. level of +/- 1%) - Credit Card size the pinch roller and the LF roller, which determines the paper feed edge tighter than usual. - A margin appears on printouts. alignment, is 0.2mm, skewed paper feeding can occur. However, according to the field data of current models, the skewness level caused by the coaxial tolerance of 0.2mm is within the criteria of +/- 1%, thus the phenomenon is left as is. Soiling on the - After continuous In borderless 1. Perform Bottom - Paper gets back side of borderless printing printing, printing is plate cleaning smeared. paper (lines or streaks parallel to the paper feed direction) of small sized paper (such as 4 x 6), when a larger sized paper (such performed to the size slightly larger than the paper size, and ink off the (from the - The back side printer driver) of paper gets up to 3 times*1. smeared. 2-6