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d-Color MF4003/MF3303
P THEORY OF OPERATION > 1.
d-Color MF4003/MF3303
P-36
[1]
Waster toner bottle
[2]
Waste toner
[3]
Waste toner
[4]
Waste toner near-full condition detection window
(b) Waste toner full condition
• When a waste toner near-full condition is detected, the “waste toner full detection counter” is incremented according to the image
density information of the print image during each of subsequent print jobs.
• When the waste toner full detection counter reaches a threshold value, the machine determines that there is a waste toner full
condition.
Execution timing
• The waste toner bottle full detection control is performed under any of the following conditions:
“The waste toner near full sensor detects a waste toner bottle near-full condition.”
“During a print cycle”
“During execution of image stabilization control”
(c) The number of prints after waste toner near-full detection
Color
Approx. 831 pages
Monochrome
Approx. 2,236 pages
NOTE
▪ The number of printed pages represents a value calculated from the toner consumption recorded when the machine is used
in the standard job mode. It varies depending on how the user uses the machine.
(6) Waste toner bottle new article detection
• The waste toner bottle is not provided with any new article detection mechanism. Detection made by the waste toner near full sensor is
used for detecting a new waste toner box.
• When the waste toner full display appears, the existing waste toner bottle is replaced with a new one. When the waste toner near full
sensor remains unblocked for a predetermined period of time or more, the machine determines that the normal state is recovered (the
old waste toner box is replaced with a new one).
• Determining that a new waste toner box has been mounted, the machine resets the waste toner full display, allowing the initiation of a
new print cycle.
(a) Timing at which to reset the waste toner full display
• The waste toner bottle full detection control is performed under any of the following conditions:
“The waste toner near full sensor detects a waste toner bottle near-full condition.”
“The main power switch is turned ON”
“The front door is closed”
(7) Waste toner spillage prevention shutter
• The toner collecting port for the transfer belt unit is provided with a waste toner spillage prevention shutter that prevents waste toner that
is transported from the transfer belt from spilling during removal or reinstallation of the waste toner bottle.
• Inserting the waste toner bottle into its mounting position pushes the shutter at toner collecting port of the waste toner bottle, thus
opening the toner collecting port.
• Removing the waste toner bottle allows the shutter spring to close the shutter at the toner collecting port.
[1]
[1]
Toner collecting port
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Service Manual
Y119930-3
Summary of Contents for d-Color MF 4003
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