Media Picks But Stops Halfway Through The Printer; Media Never Picks; Media Occasionally Mispicks Or Picks Multiple Sheets At Once - Lexmark E250D - E B/W Laser Printer Service Manual

4512-220, -230

Media picks but stops halfway through the printer

FRU
Input/duplex sensors
(under toner cartridge assembly)
Input sensor (manual)

Media never picks

FRU
Paper feed (pick tires) tray 1
Paper feed (pick tires) tray 2
Media drive ASM
Media feed clutch ASM
Manual feed clutch ASM
P/U and manual feed solenoid
ACM drive shaft

Media occasionally mispicks or picks multiple sheets at once

FRU
Tray 1
Tray 2 (option)
Paper pick tires
(Tray 1 or tray 2)
ACM clutch complete bill
of material (CBM)
Manual feed clutch CBM
Media feed clutch ASM
(tray 1 only)
Manual feed clutch ASM
Controller card
P/U and manual feed
solenoid ASM.
2-44
Lexmark™ E250d and E250dn
Action
Make sure the input sensors are working properly.
Check for a broken or stuck flag on the input sensors.
Make sure the cables are seated on the controller card at J23 (Tray 1 input)
and J20 (manual input).
Check for about +5 V dc on pin 6 at J23 (Input/duplex sensors) and pin 3 at
J20 (Input sensor).
• If correct, replace the input paper feed sensor.
• If these voltages are not correct, replace the controller card.
Action
Open the left cover, and verify that the solenoids and clutches are functioning
when an attempt is made to feed the media.
Make sure the rubber tires on the ACM are installed and clean.
Replace the tires, ACM drive, clutch assemblies, solenoids, or drive shaft as
necessary.
Action
Check tray for media catch points.
If the sheet being fed stops momentarily, the ACM applies additional vertical force,
causing additional sheets to feed.
Do not mix media types in one tray.
Check the tires in the ACM assembly for signs of wear or damage.
Replace the tires as necessary.
Open left cover, and observe the solenoid and clutch actions at the ACM and manual feed
shafts as a print job is attempted.
Replace the faulty part.
Disconnect the solenoid cable at J21 on the controller card.
Measure the resistance across cable pins 1 and 2 and then pins 3 and 4.
• The resistance should be
180—250 ohms.
• If it is not, replace the solenoid assembly.
• If the resistance is 180—250 ohms, check the controller card. See
service check" on page 2-39
Replace controller card as necessary.
for more information.
"Controller card