2-30
Service Manual
24XX-200
Printhead service check
FRU
Action
1
Printhead cables
Printhead
If the printout contains missing or extra dots or
lines, do the following:
• Check the continuity and connection of the
printhead cables and the short flexible cable.
• Be sure the voltages to the logic board are
correct.
If dots are missing:
• Perform the print test to determine which
wire is not firing.
• Remove the printhead and verify that no
pins on the printhead are broken or missing.
If pin(s) are missing, replace the printhead.
• Check the printhead resistance according to
“Printhead impedance tables” on
page 2-31
. Be sure no pins have continuity
to the printhead housing.
If the printout does not contain missing or extra
dots or lines, be sure the printhead is securely
installed in the carrier and perform the
“Printhead-to-platen gap adjustment” on
page 4-2
.
2
Carrier shaft
Carrier unit
Platen assembly
Printhead nose
Ribbon guide
Check and replace worn or damaged parts.
Summary of Contents for 248X-200 series
Page 11: ...xi 24XX 200 ...
Page 56: ...2 38 Service Manual 24XX 200 ...
Page 67: ...Repair information 4 5 24XX 200 Covers removals ...
Page 103: ...Repair information 4 41 24XX 200 Sensors removals ...
Page 111: ...Locations and connectors 5 3 24XX 200 Logic board 9w 24w ...
Page 114: ...5 6 Service Manual 24XX 200 Logic board 9w 24w ...
Page 116: ...5 8 Service Manual 24XX 200 Logic board 9w 24w ...
Page 118: ...5 10 Service Manual 24XX 200 Logic board 9w 24w ...
Page 120: ...5 12 Service Manual 24XX 200 Logic board 9w 24w ...
Page 122: ...5 14 Service Manual 24XX 200 Logic board 9w 24w ...
Page 124: ...5 16 Service Manual 24XX 200 Logic board 9w 24w ...
Page 126: ...5 18 Service Manual 24XX 200 Logic board 9w 24w ...
Page 128: ...5 20 Service Manual 24XX 200 Logic board 9w 24w ...
Page 130: ...5 22 Service Manual 24XX 200 Logic board 9w 24w ...
Page 132: ...5 24 Service Manual 24XX 200 Logic board 9w 24w ...
Page 136: ...5 28 Service Manual 24XX 200 ...
Page 144: ...7 2 Service Manual 24XX 200 Assembly 1 Covers ...
Page 146: ...7 4 Service Manual 24XX 200 Assembly 1 cont Covers ...
Page 148: ...7 6 Service Manual 24XX 200 Assembly 2 Carrier paper feed right side ...
Page 150: ...7 8 Service Manual 24XX 200 Assembly 2 cont Carrier paper feed right side ...
Page 152: ...7 10 Service Manual 24XX 200 Assembly 3 Carrier paper feed left side ...
Page 154: ...7 12 Service Manual 24XX 200 Assembly 3 cont Carrier paper feed left side ...
Page 156: ...7 14 Service Manual 24XX 200 Assembly 4 Electronics ...
Page 158: ...7 16 Service Manual 24XX 200 Assembly 5 ASF Roller support ...
Page 160: ...7 18 Service Manual 24XX 200 Assembly 6 ASF Side frame covers ...
Page 162: ...7 20 Service Manual 24XX 200 Assembly 7 Tractor 2 option ...
Page 164: ...7 22 Service Manual 24XX 200 ...
Page 168: ...I 4 Service Manual 24XX 200 ...