Kyocera TASKalfa 420i, Service Manual

Page: 218 / 508

2KR/2KS
1-4-60
1-4-5 Mechanical problems
Problem Causes/check procedures Corrective measures
(1)
No primary paper feed. Check if the surfaces of the following rollers or
pulleys are dirty with paper powder:
Forwarding pulley, paper feed pulley, separa-
tion pulley, feed roller, registration roller, MP
forwarding pulley, MP paper feed pulley and
MP separation pulley Clean with isopropyl alcohol.
Check if the forwarding pulley, paper feed pul-
ley or separation pulley is deformed. Replace the pulley if it is deformed (see
page 1-5-3).
Check if the MP forwarding pulley, MP paper
feed pulley or MP separation pulley is
deformed. Replace the pulley if it is deformed (see
page 1-5-5).
Electrical problem with the following clutches:
Paper feed clutch 1/2, feed clutch 1/2/3, MP
paper feed clutch and MP feed clutch See page 1-4-57.
(2)
No secondary paper
feed. Check if the surfaces of the right and left reg-
istration rollers are dirty with paper powder. Clean with isopropyl alcohol.
Electrical problem with the registration clutch. See page 1-4-57.
(3)
Skewed paper feed. Width guide in a cassette installed incorrectly. Check the width guide visually and correct
or replace if necessary.
Deformed width guide in a cassette. Check visually and replace any deformed
guide.
Check if a pressure spring along the paper
conveying path is deformed or out of place. Repair or replace.
(4)
The scanner does not
travel. Check if the scanner wire is loose. Reinstall the scanner wire (see page 1-5-
16).
The scanner motor malfunctions. See page 1-4-55.
(5)
Multiple sheets of paper
are fed at one time. Paper is extremely curled. Replace the paper.
Check if the separation pulley is worn. Replace the separation pulley if it is worn
(see page 1-5-3).
Check if the MP separation pulley is worn. Replace the MP separation pulley if it is
worn (see page 1-5-5).