1145 Jam With A4R Paper: Timing Belt Of Saddle Assembly In Saddle Finisher-Ab2 Slips Off - Canon imagePRESS C7000VP Series Trouble Shooting Information

4.3 1145 Jam with A4R paper: Timing Belt of Saddle Assembly in Saddle
Finisher-AB2 slips off
 Description
Since the shaft roller (FU6-2931) in the saddle assembly did not rotate when saddle-stitching
A4R-size paper, the jam code '1145' was indicated. In this field case, this jam code was not
indicated with A3-size paper.
- 1145 Jam Code can be displayed when the saddle small sensor (PS103) is not turned off
within a specified duration of feeding after the saddle inlet sensor has been turned off.
 Cause
Since the timing belt [A] slipped off the 23T pulley [B] that drives the shaft of shaft roller, the
shaft roller failed to rotate.
Reference:
The reason why this jam code does not appear with A3-size paper is that the paper can
separate under its own weight with no help of the shaft roller.
In order to prevent the timing belt from slipping off the 23T pulley, the shaft of roller shaft [E]
was extended so that the pulley guide [C] can be attached outside the 23T pulley (The pulley
guide is fixed with a resin ring [E]). When the same symptom occurs, perform the following field
remedy.
 Field Remedy
1. Check to see if the timing belt has slipped off the 23T pulley.
2. If the belt has slipped off, replace the shaft of shaft roller.
Reference: For the replacement procedure, refer to 'Removing the Shaft Roller' in the Service
Manual.
3. Fit the pulley guide outside the 23T pulley guide and fix it with an E-ring (resin type).
FU6-2931 Estrangement Roller Shaft
FA4-1159 Retaining Ring (resin type)
FC6-6361 Pulley Guide
Trouble Shooting Information for C7000VP series
Page 96
Rev. 2.0
2010/09/17