Brother DCP-J4110DW Service Manual page 213

(16) Remove the CR timing belt from the head/carriage unit.
CR timing belt
Note: When storing the removed head/carriage unit for a long period, store the unit in a head
casing as shown below. Leaving it out of the casing causes the head nozzles and ink supply
ports to dry up so that the head/carriage unit can no longer provide the original performance.
Head/carriage unit
Head/carriage unit
Latch
3-86
(3_070_E)
Head casing (upper)
Joint cap
Head joint rubber
Head casing (lower)
(3_071_E)
Confidential