Canon CiRC2550, Service Manual

Page: 548 / 774

Chapter 15
15-57
Description
a. In case that SW5 on the Heater Switch PCB is turned OFF, no electrical power is supplied to the cassette heater unit.
b. In case that SW5 on the Heater Switch PCB is turned ON, the cassette heater unit always remains supplied with electrical power.
b-1. In case that the main power switch is turned OFF: the cassette heater is turned ON.
b-2. In case that the main power switch turned ON and the machine is in the following state,
- during standby or when opening/closing covers: the cassette heater is turned ON.
- during copying/printing: the cassette heater is turned ON.
- during sleep mode 1/2: the cassette heater is turned ON.
Reference: Recommended setting of SW5
- when condensation is occurring: ON
- in a low humidity environment: OFF
- in a high humidity environment: ON
15.3.10.1.3 Number of copies printable between low-toner indication ("Check for replacement cartridge") and no-toner indication
0015-9475
Color iR C3380G / Color iR C2880G / Color iR C3380i / Color iR C3380 / Color iR C2880i / Color iR C2880 / iR C3480 / iR C3480i / iR C3080i / iR C2550
[ Manual-related ]
Description
Number of copies printable between messages "Check for replacement cartridge" (toner level 10%) and no-toner indication is as follows:
- Color printing: about 1400 copies (A4 size, 5% image ratio)
- B/W printing: about 2600 copies (A4 size 5% image ratio)
15.3.10.1.4 Secondary transfer roller is soiled with (yellow) toner
0016-4954
Color iR C3380G / Color iR C2880G / Color iR C3380i / Color iR C3380 / Color iR C2880i / Color iR C2880 / iR C3480 / iR C3480i / iR C3080i / iR C2550
[ Manual-related ]
Description
At time of installation, it is often found that the secondary transfer roller of this machine is soiled with yellow toner as shown in the figure; however, this is
the normal condition. The roller is purposefully coated with yellow toner to prevent void from being caused by friction generated when the secondary roller
slides on the ITB belt.
F-15-63
Field Remedy
1. Be sure not to clean the yellow toner applied to the secondary transfer roller.
2. In case the toner is removed accidentally, execute the following service mode to apply yellow toner again: Service Mode > COPIER > Function >
CLEANING > TNR-COAT.
15.3.10.1.5 When Remote Scanner is "online", LED indicator of Start button comes on (i.e., copy operation is enabled)
0017-9810
Color iR C3380G / Color iR C2880G / Color iR C3380i / Color iR C3380 / Color iR C2880i / Color iR C2880 / iR C3480 / iR C3480i / iR C3080i / iR C2550
[ Inspected by Canon Inc. ]
Description
When the screen was switched to the Copy screen while the remote scanner was "online", the message "Online…" was displayed and the LED indicator of
the Start button did not come on; however, when the screen was switched to a pop-up screen such as "Paper Select" or "Special Features" after that, the green
LED indicator of the Start button came on and the copy operation was enabled. According to a specification constraint of this machine, the copy operation is
not enabled while this machine is in "online" state, and therefore the LED indicator shouldn't come on. In order to satisfy this specification constraint, system
software was upgraded to Ver. 50.35.
Field Remedy
When the aforementioned symptom occurs, check the version of system software; if it is earlier than Ver. 50.35, upgrade the software to Ver. 50.35 or later.
15.4 Outline of Electrical Components
15.4.1 Clutch/Solenoid
15.4.1.1 Clutch/Solenoid Table
0014-0018
Color iR C3380G / Color iR C2880G / Color iR C3380i / Color iR C3380 / Color iR C2880i / Color iR C2880 / iR C3480 / iR C3480i / iR C3080i / iR C2550