HP laserjet 3390, 3392 all-in-one Manuale Di Servizio
ADF jam detection
The ADF has two sensors that detect paper. The paper-present sensor detects the presence of media
in the ADF input tray. The form sensor detects media moving through the ADF. If a jam is detected, the
ADF immediately stops the paper feeding and a jam message appears on the control-panel display.
in the ADF input tray. The form sensor detects media moving through the ADF. If a jam is detected, the
ADF immediately stops the paper feeding and a jam message appears on the control-panel display.
A jam can be detected under any of the following conditions:
●
Document-feeder jam When documents are detected in the ADF input tray, and a command to
copy, scan or fax is received, the scan module travels to the left side of the scan assembly and
stops beneath the ADF scanner glass. The ADF then attempts three times, or for about ten
seconds, to advance the paper to the form sensor. If the paper does not advance, the scan module
travels back to the home position on the right side of the scanner assembly. The message
Document feeder mispick. Reload. appears on the control-panel display.
copy, scan or fax is received, the scan module travels to the left side of the scan assembly and
stops beneath the ADF scanner glass. The ADF then attempts three times, or for about ten
seconds, to advance the paper to the form sensor. If the paper does not advance, the scan module
travels back to the home position on the right side of the scanner assembly. The message
Document feeder mispick. Reload. appears on the control-panel display.
●
Long-document jam If the paper has advanced to trigger the form sensor, but the trailing edge is
not detected within the time allowed for a 381-mm (15-inch) document (the maximum allowable
page length for the ADF), the scanner returns to the home position at the right side of the scanner
assembly. The message Doc feeder jam. Clear, Reload. appears on the control-panel display.
not detected within the time allowed for a 381-mm (15-inch) document (the maximum allowable
page length for the ADF), the scanner returns to the home position at the right side of the scanner
assembly. The message Doc feeder jam. Clear, Reload. appears on the control-panel display.
●
Stall jam When a page that is less than 381 mm (15 inches) long has advanced to the form sensor
but has not left it within the expected time, the paper has probably stalled or jammed. The scanner
returns to the home position at the right side of the scanner assembly. The message Doc feeder
jam. Clear, Reload. appears on the control-panel display.
but has not left it within the expected time, the paper has probably stalled or jammed. The scanner
returns to the home position at the right side of the scanner assembly. The message Doc feeder
jam. Clear, Reload. appears on the control-panel display.
●
Other If the paper stops in the ADF and the scan module remains under the ADF scanner glass,
an internal firmware error has probably occurred. This is usually remedied by cycling the power.
an internal firmware error has probably occurred. This is usually remedied by cycling the power.
ENWW
Scanner and ADF functions and operation
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