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II-14
3.3
Ink Cartridge
Ink Cartridge BC
A liquid ink bag is placed inside the ink cartridge. By inserting the ink cartridge into the
printer, an ink needle punctures the seal and is inserted into the ink bag. Ink is supplied to
the print head through the ink needle and the ink tube. 3 needles in total stick into the Ink
cartridge BC. 2 of them are for the ink supply of Black and Cyan and the other one is for
the waste ink.
The spring plate which is placed over and under the ink bag applies pressure to the ink
bag in order to keep the most suitable internal pressure for printing.
When operating the purge system, the waste ink of all 4 colors is delivered from the
Purge unit ASSY to the waste ink absorber through the waste ink tube and needle.
Ink Cartridge MY
The basic structure of the Ink cartridge MY is the same as the Ink cartridge BC but there
is no waste ink absorber. The Magenta and Yellow waste ink is delivered to the waste
ink absorber inside the Ink cartridge BC, the ink cartridge MY does not have a waste ink
absorber. Therefore, only 2 needles stick into this cartridge.
Fig. 2.16
Liquid ink bag
Spring plate
Spring plate
Spring plate
Spring plate
Waste ink absorber
Rib
Sealing
Ink cartridge BC
Ink cartridge MY
Rib
Rib
Sealing
Cap
Cap
PR99052
Summary of Contents for MP-21C
Page 1: ......
Page 2: ...SERVICE MANUAL MODEL MP 21C 21CDX ...
Page 7: ...Chapter I FEATURES AND SPECIFICATIONS ...
Page 11: ...I 3 3 CONFIGURATION 3 1 Mechanics Overview Fig 1 1 MP 21C MP 21CDX ...
Page 29: ...Chapter II THEORY OF OPERATION ...
Page 52: ...Chapter III DISASSEMBLY AND REASSEMBLY ...
Page 95: ...III 42 Pick up roller ASSY EM2 EM2 Fig 3 64 ...
Page 100: ...Chapter IV TROUBLESHOOTING ...
Page 120: ...Appendix ...
Page 122: ...Appendix 1 Head PCB Circuit Diagram CODE UJ7041000 MPHEAD SCH01 NAME A 1 ...
Page 123: ...Appendix 2 Main PCB Circuit Diagram 1 3 CODE UJ7040000 MPMAIN SCH01P1 NAME A 2 ...
Page 124: ...Appendix 3 Main PCB Circuit Diagram 2 3 CODE UJ7067000 MPMAIN SCH01P2 NAME A 3 ...
Page 125: ...Appendix 4 Main PCB Circuit Diagram 3 3 CODE UJ7068000 MPMAIN SCH01P3 NAME A 4 ...
Page 126: ...Appendix 5 Cartridge Sensor Circuit Diagram A 5 CODE UJ7061000 MPCTRG SCH01 NAME ...
Page 134: ...R Mar 99 5H1002BE0 ...
Page 136: ...UJ5394001 A Printed in Japan ...
Page 157: ...UJ5351001 Printed in Japan ...
Page 212: ...USER S GUIDE Index 2 T Transparencies 2 1 W Windows 5 6 ...
Page 213: ...PARTS REFERENCE LIST MODEL MP 21C 21CDX R COLOR INKJET PRINTER ...
Page 224: ... 9 8 ATTACHMENTS MODEL MP 21C CDX 5H1 001 002 910 4 3 5 6 1 2 7A 7B 7C 7D 7E ...
Page 227: ...Mar 99 54H1002BE0 R ...