Canon MultiPASS C5000 Service Manual page 82

Part 7: Facsimile
NOTE
BJ head protection
In order to always maintain good print qulity, this model performs cleaning of
There are three types of cleaning operations: pump suction, wiping, and
head.
Cleaning operation
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Cleaning operation is performed using the cap and pump of the purge unit.
The cleaning operation is performed :It the ~lllowing times:
When the user initiates R cleaning operation
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At power-on
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When the BJ cartridge is changed
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At the start of n print l,peration when at least 72 hours has passed since
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the last cleaning
(However, when using the UC-ZUBC-22, the first cleaning after changing
the BJ cartridge/ink cartridge will occur when a print operation begins after
24 hours or more.)
Wiping operation
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When the carriage passes by from left to right, the wiper blade drops down so
that it does not touch the print bend. When the carriage passes by from right
to left, the blade rises to contact the print head and wipe away paper fibers
and ink residue.
The wiping operation is perform& at the following times:
At the start of printing whrn less than 72 hours has passed since the last
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Every 60 seconds during prlntlng (or ;~flcr 'L fixed number of dots have been
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ejected)
During il cnpping opcr;ltiun
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Maintenance jet
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The maintennnce jet operatmn pr~pzww the nozzle spray orifice ink surfzwc
shape by pcrfurming ;m ink test, firing at the maintenance jet absorber.
The maintenance jet operation is pcrfwmed during B cleaning operation, after
Capping after print completion
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The cnpping operation is perfiJrmed nt tllc fullowing times:
When B fixed amount of time presses nftrr the cnmpletion of printing without
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During printing, ;+l't~~~ thr DE~OI~II 1, iping operation (i.e. after 120 seconds)
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with no print data rcceiwd 1~~ the f'rinler Section
After changing the 11.J c:lrtrl<lgc
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(pump suction)
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