Canon imageRUNNER ADVANCE C2030 Service Manual page 107

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Process/Operation > Image Formation System > Controls > Other Controls
● Waste Toner Container Detection
Presence/absence of the Waste Toner Container is detected.
Detection timing
1) At power-on
Detection description
Presence/absence of the Waste Toner Container is detected according to the status of the
Waste Toner Container Switch (SW2).
ON: There is a Waste Toner Container
OFF: There is no Waste Toner Container (display user message)
[Without the container]
Waste Toner
Container Switch(SW2)
Sensor Flag
2 Process/Operation > Image Formation System > Controls > Other Controls
[With the container]
F-2-104
■ Other Controls
● Special Controls
This machine has the following sequences as the special sequence.
Image Smear Prevention
Black Band Sequence Sequence
Solid black band Solid color band (Y/M/C/BK)
Black Band Sequence
Control timing: At last rotation after printing of 100 sheets
When performing continuous printing while no toner is fed to the ITB Cleaning Blade, it may
cause the blade to be everted. To prevent it happens, toner is transferred onto the ITB (a
solid black band: width = whole ITB width, length = 1mm) to supply toner to the blade.
Image Smear Prevention Sequence
Control timing: Immediately after generating patch pattern with ATR control under a high
humidity environment.
Toner band for all colors is formed to prevent image smear by supplying toner to the
Auxiliary Brush and increasing sweeping performance for discharged product on the Drum.
Developing Discharge Sequence
Control timing: When the average image ratio per sheet reaches 2% or less
Developing performance can decrease when performing continuous printing with low image
ratio. To prevent this error, the average image ratio for each color is calculated with the ATR
control and adequate amount of toner based on the calculation (width = A4, length = a solid
color band according to the deteriorated toner amount) is transferred to the ITB.
Print Mode Switch Sequence
This sequence is executed when the print mode to be printed next is different from the print
mode currently executed. For this sequence, the operation to be executed differs between
color mode switching and print speed switching. Therefore, downtime differs as well. Up to
28 seconds downtime is expected.
Type
Color mode switching • Drum phase control (when the print mode to be printed next is
(Color mode, Black mode) the color only)
Print speed switching • Fixing temperature switching
(Full-speed, Half-speed) • Scanner Motor / Feed Motor speed switching
• Drum phase control (when the print mode is the color only)
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Developing Discharge
Sequence
Solid color band (Y/M/C/BK)
F-2-105
Control to execute switching
T-2-41
2-73