Canon FAX-L1000 - Manual (Page 186)

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FAX-L1000 Chapter 3: Technical Reference
b-3) No recording paper detection configuration
The presence of paper on the multi-purpose tray is detected by the multi-purpose tray
paper sensor (PS105).
NOTE
No recording paper processing
When a no recording paper error occurs in the side cassette, the main
motor drive is stopped, print operations are stopped, the error is displayed
on the display, and the
Rec. Paper lamp and the Error lamp blink red.
When a no recording paper error in the front cassette occurs, the main
motor drive is stopped, print operations are stopped, the error is displayed
on the display, the Rec. Paper lamp and the Error lamp blink red.
“
SUPPLY REC. PAPER ” is displayed on the display. If the error occurs
during reception, the reception images are received into memory reception
starting from the page during which the error occurred, but if the error
occurs during copying, the copy image is erased.
b-4) Recording paper size and no cassette detection configuration
As there is no detection mechanism for paper size on the multi-purpose tray, the size of the
paper set on the tray cannot be detected. The paper size in the cassette can be detected by
the switches above. However, when using the universal cassette, the paper size is set by the
user. If the setting made by the user is incorrect, it results in an incorrect detection.
Therefore, this printer has the top of page sensor (PS103) which detects the paper size by
measuring the time from the leading edge passes the sensor until the trailing edge passes
the sensor. If the detected size differs from that specified by the SCNT board or by the
combination of the switches, the CPU assesses paper size mismatch and reports it to the
SCNT board.