HP PageWriter XL M1705B Service Manual page 139

Table 6-5. Printer (continued)
Symptom
Paper moves but nothing
Frints.
Cause
Corrective Action
Paper loaded incorrectly, or Make sure cardiograph is properly
non-approved or non-thermal paper loaded with approved thermal paper.
installed.
Printer moves but printing is Door improperly latched.
Check door latch.
aint .
Paper loaded incorrectly, or
Make sure cardiograph is properly
non-approved or non-thermal paper
loaded with approved thermal paper.
installed.
Insufficient leaf spring tension or Check leaf spring for printhead platen
printhead out of position. pressure, door latch. Check for proper
paper.
Defective printhead or printhead Replace printhead assembly.
cables.
Defective component in printer Replace CPlJ assembly.
circuitry.
Selector Sl on CPU set incorrectly. Set selector Sl correctly (refer to
Chapter 7).
Printed data is garbled.
Defective printhead. Replace printhead assembly.
Defective component, in data path.
1. Check printhead cables.
2. Replace CPU assembly.
'oar print quality or some
lots not printing.
Dirty printhead. Clean printhead.
Loose ESD brush fibers.
Remove loose brush fibers and clean
printhead.
Incorrect printhead or sensor cable
Correct cable dress so that printhead
dress. assembly moves properly.
Defective printhead or printhead
Replace printhead assembly.
cables.
Defective component in printer
Replace CPU assembly.
circuitry.
some dots always on. Defective printhead.
Replace printhead assembly.
?rinting is dark on one side of Printhead is not free to float and
Correct binding condition.
Iage but faint on the other provide even (uniform) pressure
Replace printer door.
side. distribution across platen roller.
Replace printhead assembly.
6-16 Troubleshooting