Canon imagePRESS C1 Service Manual - page 743
Chapter 14
14-8
F-14-8
Field Remedy
When the same symptom occurs, replace the 23T/45T gear and the 35T/46T gear with new ones at the same time, or replace the whole drum I.T.B. drive
assembly with a new one.
FU6-0545 23T/45T Gear
FU6-0546 35T/46T Gear
FM2-2550 Drum I.T.B. Drive Assembly
14.3.1.3 Image Displacement/Out of Focus
14.3.1.3.1 Smeared image/hue variation (variation of drum potential) occurs in humidity environment
0015-7361
imagePRESS C1 P / imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1+ (Printer) / imagePRESS C1+
[ Inspected by Canon Inc. ]
Description
Since a machine installed in a humidity environment caused smeared image or hue variation, the drum temperature switch (SW16) was set to "H" to solve it.
Field Remedy
1. Make the following selections in sequence to check the value for [ABS-HUN] (moisture content); if the value is 10g or greater, go through Step 2 and 3:
[Service mode > COPIER > Display > ANALOG].
2. Check to make sure that the environment switch (SW13) [1] is set to ON.
3. Set the drum temperature switch (SW16) [2] to "H" (lower side).
F-14-9
Reference: The drum heater control is performed in disregard of the main power switch setting when the environmental switch in the rear left side of the
machine is turned ON.
14.3.1.3.2 Yellow displaced at trail edge of image upon installation: Screw on ITB connecting shaft is loosened
0016-2172
imagePRESS C1 P / imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1+ (Printer) / imagePRESS C1+
[ Inspected by Canon Inc. ]
Description
Since the ITB connecting shaft was not tightened after the process unit to which a weight and the developing assembly were mounted was set into the main
body upon installation, yellow was displaced in both copying and printing. The degree of displacement worsen toward the trail edge.