Mechanical Problems; No Primary Paper Feed; No Secondary Paper Feed; Skewed Paper Feed - Kyocera KM-1620 Service Manual

2C9

1-5-5 Mechanical problems

Problem
(1)

No primary paper feed.

(2)
No secondary paper
feed.
(3)

Skewed paper feed.

(4)
The scanner does not
travel.
(5)
Multiple sheets of paper
are fed at one time.
(6)

Paper jams.

(7)
Toner drops on the pa-
per conveying path.
(8)
Abnormal noise is
heard.
1-5-32
Causes/check procedures
Check if the surfaces of the following rollers
or pulleys are dirty with paper powder: for-
warding pulley, paper feed pulley, separation
pulley, registration rollers, bypass paper
feed pulley and bypass separation pad.
Check if the forwarding pulley, paper feed
pulley or separation pulley is deformed.
Electrical problem with the following electro-
magnetic clutches: paper feed clutche and
bypass paper feed clutch.
Check if the surfaces of the right and left
registration rollers are dirty with paper pow-
der.
Electrical problem with the registration mo-
tor.
Width guide in a drawer installed incorrectly.
Deformed width guide in a drawer.
Check if a pressure spring along the paper
conveying path is deformed or out of place.
Check if the scanner wire is loose.
The scanner motor malfunctions.
Check if the separation pulley is worn.
Check if the paper is curled.
Check if the paper is excessively curled.
Deformed guides along the paper conveying
path.
Check if the contact between the right and
left registration rollers is correct.
Check if the press roller is extremely dirty or
deformed.
Check if the contact between the heat roller
and its separation claws is correct.
Check if the contact between the exit roller
and pulley is correct.
Check if the developing unit is extremely
dirty.
Check if the pulleys, rollers and gears oper-
ate smoothly.
Check if the following electromagnetic
clutches are installed correctly: paper feed
clutche and bypass paper feed clutch.
Corrective measures
Clean with isopropyl alcohol.
Check visually and replace any deformed
pulleys (see page 1-6-3 and 5).
See pages 1-5-29.
Clean with isopropyl alcohol.
See page 1-5-28.
Check the width guide visually and correct
or replace if necessary.
Repair or replace if necessary .
Repair or replace.
Reinstall the scanner wire (see page 1-6-
18).
See page 1-5-29.
Replace the separation pulley if it is worn
(see page 1-6-3).
Change the paper.
Change the paper.
Repair or replace if necessary.
Check visually and remedy if necessary.
Clean or replace the press roller (see page
1-6-39).
Repair if any springs are off the separation
claws.
Check visually and remedy if necessary.
Clean the developing unit.
Grease the bearings and gears.
Correct.