Toshiba E-Studio 5540c, Руководство по обслуживанию

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e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C © 2011 - 2015 TOSHIBA TEC CORPORATION All rights reserved
OUTLINE OF THE MACHINE
3 - 72
3.11.3 Functions
1. Pickup roller (Drawers and bypass feed)
This roller moves up and down and draws out the paper from the bypass tray or drawer and
transport it to the feed roller.
2. Feed roller (Drawers and bypass feed)
This roller is placed against the separation roller. It transports the paper from the pickup roller to the
transport roller.
3. Separation roller (Drawers and bypass feed)
This roller is placed against the feed roller. When two sheets of paper or more are transported from
the pickup roller, the load of the torque limiter of the separation roller is heavier than the frictional
force between the sheets. As the result, the separation roller is stopped and the lower paper is not
advanced any further. When only one sheet is transported from the pickup roller, the separation
roller rotates following the feed roller.
4. Transport roller (Drawers and bypass feed)
This roller transports the paper sent from the feed roller to the registration roller.
5. Registration roller
Paper transported from the transport roller is pushed against the registration roller which aligns the
leading edge of the paper.
Then, the registration rollers rotate to transport the paper to the transfer unit.
6. Bypass paper sensor (S71)
This sensor detects if paper is set in the bypass tray. If it is, bypass feeding always comes before
drawer feeding.
7. Media sensor (S69)
This equipment has a media sensor to measure the thickness of copy paper.
The media sensor detects the thickness of paper that is fed only from feeding devices other than the
bypass tray. The sensor has 2 functions as follows:
(1) The sensor classifies plain paper (16.8 to 27.6 lb.) into plain paper 1 (relatively thin plain paper)
and plain paper 2 (relatively thick plain paper) and controls fusing temperature accordingly.
(2) The sensor judges if a users media type setting is correct according to the thickness
measurement result by itself. When the sensor judges that the setting is not correct, printing
automatically stops. (Error code: E071-E076 (Media type mis-setting jam))
Even though media types are classified with its paper weight in general, the thickness of paper is not
always proportional to the paper weight. Therefore the sensor makes the equipment stop printing
only when a users media type setting is obviously incorrect.
Whether enabling or disabling the function (2) above can be switched in the code 08-4598.
In case the media sensor fails, no error code is displayed. In this case, as for the function (1) above,
paper set in the code 08-4599 is automatically selected, and the function (2) above is automatically
disabled. Therefore the malfunction of the media sensor does not affect the equipment operation
and thus printing is not disturbed.
The media sensor malfunction is detected with the output value of the sensor. If an abnormal value
is output, the sensor is judged as in a faulty condition. This status is recorded in an error history.
(Error code: CFA0 or CFA1 (Media sensor detection abnormality))
Even if the error CFA0 or CFA1 occurred, the media sensor outputs values again after the
equipment was recovered from the sleep mode or its power was turned OFF and then back ON. If
the output value is normal, the sensor then returns to its normal detection status.
Do not bring a magnet or other magnetized materials closer to the media sensor because it
measures minute displacement amounts with magnetoresistance change.