Printing from tray 1
The tray 1 paper sensor (PS105) detects the presence of media in tray 1.
When the dc controller PCA receives the print command, the printer starts the initial rotation phase,
which consists of the main motor warm-up, scanner motor warm-up, high-voltage control sequence,
and fuser warm-up. When the initial rotation phase ends, the tray 1 pickup solenoid (SL102) is
activated.
The cam rotates, the paper-tray lifter rises, and the media comes in contact with the tray 1 pickup
roller. At the same time, the tray 1 pickup roller rotates twice and picks up a sheet of media from tray
1. The separation pad prevents additional sheets from feeding with the first sheet.
When the sheet reaches the registration assembly, its skew is corrected. The sheet then passes
through the transfer, separation, and fusing stages, and through the delivery unit, and is then
delivered to the output bin.
NOTE If media is removed from tray 1 after the initial rotation phase but before the pickup
roller pulls the media from the tray, the tray 1 pickup roller might continue to rotate up to six
times, after which a jam is detected.
Figure 5-15 Tray 1 timing
106 5 Theory of operation
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