Epson Stylus Pro 7890 Series, Service Manual, Page: 150 / 519

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908 Revision I
TROUBLE SHOOTING Remedies for Print Quality Troubles 150
Confidential
Ink smear (printed area) Paper is curled or creased. Change the paper with a new one.
The printed area of paper is contaminated by ink smear in the paper feed path. Check the PF roller for ink smudges, and clean it if any dirt is observed.
Paper is rubbed against the printhead. Widen the platen gap.
There is a foreign material or dirt absorbing ink around the Printhead. Check around the Printhead for a dirt or foreign material, and remove it if any.
Paper is floating from the platen. Change the setting of [PAPER SUCTION] to a higher level from the Control Panel.
Check the operation of the Suction Fan, and replace it with a new one if there is
abnormality.
(See P.261)
This smear occurs because the paper on which ink dries slowly is used. Change the setting of [DRYING TIME] from the Control Panel.
If the smear occurs the leading/posterior edge, the paper may touch the Printhead
due to the deformation resulted from the high duty printing. Try printing the current job again with the top and bottom margins widened.
Ink smear (backside) Paper is curled or creased. Change the paper with a new one.
The backside of paper is contaminated by ink smear in the paper feed path. Check the platen and PF roller for ink smudges, and clean them if any dirt is
observed.
Printing is made on the platen, and it is contaminated. If the [PAPER SIZE CHECK] in the [PRINTER SETUP] menu is set to OFF, the
printer will print on the platen. It results in the ink smear. Therefore, set the
[PAPER SIZE CHECK] ON or configure the correct paper size.
Carry out the Platen Position Adjustment.
The waste ink pads for borderless printing are not securely attached and
contaminating paper. Check the waste ink pads for borderless printing and reattach them correctly if
there is abnormality.
Symptom Description Remedy/Points to be checked