4 • Troubleshooting/Diagnostics
4.2 Troubleshooting Tables
Table 4-6 Printing Faults (cont'd)
Ink yield is based on usage. Factors affecting
plains that ink
ink usage are:
usage is high.
• The number of pieces run per day.
• Whether the pieces are run in a batch or
• Performing manual maintenance.
Print head cleaning cycles are performed each
time the head is capped [after the stop button
is pressed or if there is no mail run for 15 sec-
onds], after extended periods of idle time [wak-
ing from sleep], and after power up.
The more pieces you run per day, the higher
your ink yield. This is because there will be
fewer maintenance cycles per ink cartridge.
If you run the mail in batches rather than one at
a time the ink yield will be higher. This is be-
cause when you run in batches there are fewer
print head cleaning cycles per mail piece.
See ink consumption specifications in Chapter
2. 5500 prints per ink cartridge is based on
33 pieces per day "exactly". Any variation will
change that. Most ink is used for maintenance.
Empty cartridge = 40 grams (technically there
is still some left to insure it does not run dry and
allow air into system). 35 grams is really empty.
How many pieces per day does this customer
Do they run one at a time or run them in
Do they ever perform manual print head main-
Is the customer printing ads? This increases
Is the customer printing reports? This increas-
es ink usage.
DM300c/DM400c/DM475 Service Manual (SV61801 Rev. D)