Toshiba e-Studio 270P

Printhead service check

FRU

Action

Printhead

Unplug the printer. Disconnect the printhead cables from J11 and J12 on the controller card. Turn the printer on. On the controller card, verify +24 V dc on pin 5 at J11 and +5 V dc on pin 7 at J12. Verify grounds on pin 4 at J11 and on pins 2, 6, and 8 at J12. • If voltages or grounds are incorrect, check the controller card. See “Controller card service check”9 for more information. • If voltages are correct, replace the printhead (comes with cables).

Paper feed service checks

Paper jam error indication during POST

FRU	Action
Exit sensor	If the exit sensor flag is not resting within the paper exit sensor during POST, the printer displays a paper jam message. Make sure the flag is operating freely and is correctly installed.
Input sensor Input sensor #1 (under print cartridge assembly) and Input sensor #2 (manual)	Make sure the input paper feed sensors are working properly. A stuck or incorrectly installed sensor causes this error.
ACM (auto comp mechanism or paper feed) clutch Manual feed clutch	Check the ACM clutch for wear. The solenoid interacts with the clutch to control the motion of the pick tires. If the ratchet teeth of the ACM clutch assembly are worn or broken, the solenoid may not stop the ACM from rotating. Replace the ACM clutch assembly if necessary. Check the manual feed clutch for the same damage.

Paper picks but stops half way through the printer

FRU

Action

Input sensor #1 (under print cartridge assembly) and Input sensor #2 (manual)

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 J20 (Tray 1 input) and J18 (manual input). Check for less than +5 V dc on pin 3 at J20 (Tray 1 input) and pin 1 at J18 (manual input sensor). • If correct, replace the input paper feed sensor. • If these voltages are not correct, replace the controller card.