Canon imagePRESS C1 Service Manual - page 460
Chapter 7
7-111
F-7-262
7.14.41 Patch Image Sensor
7.14.41.1 Preparation for Removing the Patch Image
Sensor Unit
0013-9759
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image-
PRESS C1+
1) Open the front cover.
2) Detach the process unit cover.
3) Lift the hopper unit.
4) Remove the primary charging assembly. (page 7-86)Reference [Re-
moving the Primary Corona Assembly]
5) Remove the pre-transfer charging assembly. (page 7-88)Reference [Re-
moving the pre-transfer corona assembly]
6) Remove the drum unit. (page 7-89)Reference [Removing the Drum
Unit]
7.14.41.2 Removing the Patch Image Sensor Unit
0013-9760
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image-
PRESS C1+
1) Remove the patch image sensor unit [1].
- 1 connector [2]
- 2 screws [3]
F-7-263
7.14.41.3 After Replacing the Patch Image Reading
Sensor
0014-3695
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image-
PRESS C1+
Run the following items in the Service Mode after replacing the patch image
scan sensor.
Service Mode (Patch Detection Sensor Default Correction) :
COPIER > ADJUST > DENS > ALF-F (front)> COPIER > ADJUST > DENS > ALF-C er)> This sensor unit comes with the following correction value labels (3 in total). The labels contain correction values for each sensor (front, center and rear). Enter the label values (4 digits) [1] using the above service mode. After entering the values, put the labels onto the new sensor unit. F-7-264 7.14.42 Charging Wire 7.14.42.1 Preparation for Setting Up Charging Wire 0014-0978 imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image- PRESS C1+ 1) Open the front cover. 2) Detach the process unit cover. 3) Lift the hopper unit. 4) Remove the primary charging assembly. (page 7-86)Reference [Re- moving the Primary Corona Assembly] 5) Remove the primary grit plate. (page 7-87)Reference [Removing the Primary Grid Plate] 6) Remove the primary charging assembly pad folder. (page 7-87)Refer- ence [Removing the Primary Corona Assembly Pad Holder] 7) Remove the primary charging assembly slider. (page 7-88)Reference [Removing the Primary Corona Assembly Slider] 7.14.42.2 Setting Up Charging Wire 0013-9738 imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image- PRESS C1+ The following procedure is basically the common procedure among all charging assemblies. The primary charging assembly is used here as an ex- ample. 1) Remove the shield plate [1]. - 2 screws [2] - 1 holder [3] F-7-265 2) Remove the wire cleaner. 3) Loosen the charging wire [2] about 5 cm from the charging wire reel [1] of wire diameter 0.06 mm, and make a loop of diameter 2 mm on the edge. MEMO: When making a loop, roll the charging wire in the hex key once, and roll the hex key three to four times to twist the charging wire. By doing so, you can easily make a loop. 4) Cut the edge of the twisted charging wire (excess wire) using a wire cutter. 5) Hook the loop on the stud [3]. F-7-266 6) Hook the charging wire [2] on the charging wire positioning [1] at rear side, and then, hook the charging wire tension spring [3] to the charging wire at the position indicated below and twist it. [1] [2] [3] [1] [2] [3] [3] [1] [1] [2] [2] [3] [1] [2] [3] (FRONT) (REAR)