2. If the return guide sheet has ridden on the operation tray bin, correct the position of return guide sheet so that it will be under the operation tray bin and

then perform a booklet job.

14.3.2.1.3 In booklet printing, paper misalignment/unstapled sheet problem occurs with 2nd page and later: Stack delivery

rollers of Finisher-AA1/AA2 lack pressure

imagePRESS C1 P / imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1 (CUSTOM) / imagePRESS C1+ (Printer) / imagePRESS C1+

[ Inspected by Canon Inc. ]

Description

During a booklet-printing job, a Finisher unit failed to pull the 2nd sheet of paper back to the process tray correctly, consequently causing the sheet to misalign

within the stack. Worse yet, a misaligned sheet of paper was not stapled in case the staple mode was set.

Cause

Since the upper and lower stack delivery rollers lacked pressure, the 2nd sheet and later sheets were not pulled back to the process tray correctly. In order to

adjust the pressure applied to the upper and lower rollers in handling the 2nd sheet and later sheets, and thereby prevent the above symptom, the Finisher

Controller Software was changed from Ver. 4.01 to Ver. 5.01.

Field Remedy

1. Check the version of the Finisher Controller Software; if it is earlier than Ver. 5.01, upgrade the software to Ver. 5.01.

2. Referring to "Procedure for Adjusting Height of Swing Roller in Swing Unit", perform the height adjustment and then run a booklet copying.

Reference: For the 1st sheet of paper, the swing guide goes down under its own weight and applies pressure to the upper and lower stack delivery rollers, and

thus the sheet is pulled back to the process tray. For the 2nd sheets and later sheets of paper, however, the swing guide is lowered by the motor pulse control.

14.3.2.1.4 Procedure to Improve the Accuracy of Skew Adjustment

imagePRESS C1 P / imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1 (CUSTOM) / imagePRESS C1+ (Printer) / imagePRESS C1+

Explanation

The procedure to improve the accuracy of paper skew adjustment is explained below.

Procedure in the field

Improve the accuracy of skew adjustment following the procedure explained below.

1) Output the monochrome halftone test pattern using the service mode.

(Refer to

for the setting procedure.)

2) Check the skew amount in the output paper.

To check the skew amount, measure the margin [A] on the front side of the leading edge and the margin [B] on the backside of the leading edge, and check

the skew amount (A - B).

3) Open the front cover and pull out the fixing feed assembly.

4) Memorize the position [2] where the skew adjustment scale located on the backside of the registration unit [1] is placed.

F-14-30

[B]

[A]

F-14-31

Chapter 14

0021-4963

0020-7796

14-23

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