Canon iR8500 Service Manual page 50

4.1.87 The "Add Toner" message
fails to go OFF ................. 6-147
4.1.88 The "Card Reader Set"
message fails to turn
ON ................................... 6-147
4.1.89 The "Control Card Set"
message fails to go
OFF .................................. 6-147
4.1.90 The "Add Paper" message
fails to go OFF
(deck right/left) ................ 6-148
4.1.91 The "Add Paper Message"
fails to go OFF
(cassette 3/4) .................... 6-148
4.1.92 The fixing heater fails to
operate ............................. 6-149
4.1.93 Pickup fails
(side paper deck) .............. 6-150
4.1.94 The deck lifter fails to
move up (side paper
deck) ................................ 6-151
5 Troubleshooting Feeding Faults ..... 6-152
5.1 Copy Paper Jams .................... 6-152
5.1.1 Pickup Assembly ............. 6-153
5.1.2 Separation/Feeding
Assembly ......................... 6-154
5.1.3 Fixing/Delivery
Assembly ......................... 6-155
5.1.4 Fixing, Delivery
Assembly (reversal
delivery assembly) ........... 6-156
5.1.5 Cleaning Assembly .......... 6-156
5.1.6 Lower Feeding
Assembly ......................... 6-157
g
Electrical Parts ................................ 6-159
6.1 Clutches ................................. 6-160
6.2 Solenoids ................................ 6-162
6.3 Motors .................................... 6-164
6.4 Fans ........................................ 6-166
6.5 Sensor 1 ................................. 6-168
6.6 Sensor 2 ................................. 6-170
COPYRIGHT© 2001 CANON INC.
6.7 Switches ................................. 6-172
6.8 Counters, Heaters, Fuses, and
Others ..................................... 6-174
6.9 PCBs ...................................... 6-176
6.10 Variable Registers (VR),
Light-Emitting Diodes, and
Check Pins by PCB ................ 6-178
6.10.1 Main Controller PCB ....... 6-178
6.10.2 Reader Controller PCB .... 6-179
6.10.3 DC Controller PCB ......... 6-179
6.10.4 HV-DC PCB .................... 6-180
7 Upgrading ....................................... 6-181
7.1 Outline ................................... 6-181
7.1.1 Download Mode .............. 6-181
7.1.2 Making Pre-Checks ......... 6-182
7.2 Data Control ........................... 6-185
7.3 Downloading the System
Software, RUI, and Language
Module ................................... 6-188
7.3.1 Making Connections ........ 6-188
7.3.2 Downloading ................... 6-188
7.3.3 After Downloading .......... 6-194
7.4 Upgrading the BOOT
ROM ...................................... 6-194
7.4.1 Making Preparations ........ 6-194
7.4.2 Connection ....................... 6-195
7.4.3 Preparing BOOT ROM .... 6-195
7.4.4 After Downloading .......... 6-199
7.5 Formatting the HDD .............. 6-200
7.5.1 Making Connections ........ 6-200
7.5.2 Starting Formatting .......... 6-200
7.5.3 Points to Note When
Formatting the Hard
Disk .................................. 6-206
7.6 Upgrading by Repacking
the DIMM/ROM .................... 6-207
8 Backing Up Data ............................ 6-209
8.1 Outline ................................... 6-209
8.2 Backing Up Data .................... 6-210
8.2.1 Making Preparations ........ 6-210
8.2.2 Making Connections ........ 6-210
8.2.3 Backing Up Data ............. 6-211
8.2.4 Downloading Backup
Data .................................. 6-216
8.2.5 Managing Backup Data ... 6-220
CANON iR8500 REV.1 MAR. 2001
CONTENTS
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