250/550-sheet tray undetected service check
Action Yes No
Step 1
Remove the tray from the drawer and do the following:
• Check the paper guides for damage. Move the paper guide and verify
if it can move freely from one position to another.
• Check the media size finger flag for damage.
• Check the lift plate gear for damage. Manually turn the lift plate gear
and check if it causes the lift plate to move upward.
• Check the separator gears for damage. Manually turn the gear and
check if the gears function properly.
Are the above components ok?
Go to step 2. Replace the media tray.
Go to “Media tray
assembly removal” on
page 407.
Step 2
Manually push the media size sensor flags and check if it would spring
back to its original position. If problems are found with the media size
sensor, then replace the input option. See “250/550-sheet media tray and
drawer assembly removal” on page 406.
Open the left cover, and reseat the connector (J3) on the controller board.
POR the machine.
Does the error remain?
Go to step 3. The problem is solved.
Step 3
Remove the input option from the printer. Check the upper interface
cable. If damaged, then replace the upper interface cable. See “Drawer
upper interface cable removal” on page 412.
Open the left cover and reseat the connector (J1) on the controller board.
POR the machine.
Does the error remain?
Go to step 4. The problem is solved.
Step 4
Check the interface cable of the printer or upper level option for damage.
Is the above component still ok?
Go to step 5. Replace the interface
cable of the printer or
upper level option.
Step 5
Check the connectors on the controller board. If damaged, then replace
the controller board. See “Drawer controller PCBA removal” on
page 411.
Reseat all connectors on the controller board, then POR the machine.
Does the error remain?
Replace the controller
board. Go to “Drawer
controller PCBA
removal” on page
411.
If the error remains,
then go to step 6.
The problem is solved.
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Diagnostic information
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