Pitney Bowes DM300c Service Manual page 88

4 • Troubleshooting/Diagnostics
4.2 Troubleshooting Tables
Table 4-6 Printing Faults
Errors Checkpoints
No print out of • In some cases, the print head may dry out or
box. be cold from shipment. This could result in a
no print condition. Allow the system to warm
up to room temperature.
• Check gold contacts on the print carriage for
ink or other deposits and clean if necessary.
• Check for capping station ink "kiss mark" on
the metal plate of the print head. The "kiss
mark" confirms a good print head to print head
cap seal. There should be an oval shape of
ink on the print head where it seals against
the cap.
• Check for large puddle of ink on the print head
nozzles in the center strip of the metal face of
the print head.
Follow steps at right.
Poor print quality: Purge may be required. Test and purge pro-
gaps and voids. cedure is available through either the user
(OPTIONS) or service menu. From the user
menu, press OPTIONS > Scroll down once >
Maintenance > Printer maintenance > Print Test
Pattern.
NOTE: For a poor print issue that will not clear
with a basic purging, perform the printhead
replacement procedure. With the system
running, open the print head/ink access cover.
Select "Replace Print Head." Physically remove
the printhead and reinstall it following the
prompts.
"Ink Tank Fault" Wrong ink cartridge installed. Defective car-
error message. tridge.
4-8
Possible Cause/Solution
1. Complete install.
2. After install is complete, remove ink car-
tridge and print head.
3. Make sure tape has been removed from
bottom of print head and tab has been
removed from ink cartridge,
4. Check that ribbon cable from carriage as-
sembly to J127 is intact and properly con-
nected.
5. Clean the gold connectors on the side of
the print head with a pencil eraser.
6. Install the print head and ink cartridge.
7. Check the capping station. Clean if neces-
sary.
8. Test print quality. Test and purge proce-
dure is available through either the user
(OPTIONS) or service menu. From the
user menu, press OPTIONS > Scroll down
once > Maintenance > Printer mainte-
nance > Print Test Pattern. See illustra-
tion below.
9. If print quality is poor, perform up to three
"C" purges. Then perform a "D" purge.
GOOD
Figure 4-3 Print Test Patterns
If the test pattern shows gaps or voids, purge
the printer nozzles and retest. If little or no im-
provement is noted, you may repeat the purge
up to five times total.
The DM100i cartridge will fit into the
DM300c/400c print carriage but will not work.
Check the cartridge. It sometimes happens
that customers are sent the wrong cartridge.
DM300c/DM400c/DM475 Service Manual (SV61801 Rev. D)
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