Toshiba e-STUDIO556 Service Manual page 93

[ 2 ] Ready state (ready for copying)
The buttons on the control panel are enabled.
→ When no button is pressed for a certain period of time;
- The set number "1" and reproduction ratio "100%" are displayed. The equipment returns to the
normal ready state.
[ 3 ] Drawer feed copying with the [START] button
1. Pressing the [START] button
→ "READY" changes to "COPYING".
→ The exposure lamp (EXP) is turned ON.
→ The scan motor (M1) is turned ON. → Carriage-1 and -2 move forward.
→ The polygonal motor (M2) rotates at a high speed (Only for e-STUDIO556/656)
(the e-STUDIO756/856 and e-STUDIO557/657/757/857 is at a constant speed).
→ Each motor is turned ON. → The drum, transfer belt, fuser unit and developer unit rotate.
→ The main charger, developer bias and discharge LED (ERS) are turned ON. The fans rotate at a
high speed.
2. Drawer paper feeding
→ Each motor is turned ON. The drum, transfer belt, fuser unit and developer unit rotate.
→ The main charger, developer bias and discharge LED (ERS) are turned ON. The fans rotate at a
high speed.
→ The feed motor (M20), drawer feed clutch (CLT6, 8, 10, 12) and drawer transport clutch (CLT5, 7,
9, 11) are turned ON.
→ The pickup roller, feed roller and transport roller start to rotate.
- The paper reaches the transport roller.
- The drawer transport sensor (S33, 39, 45, 51) is turned ON.
→ The drawer feed clutch (CLT6, 8, 10, 12) and drawer transport clutch (CLT5, 7, 9, 11) are turned
OFF after a certain period of time.
- The paper reaches the intermediate transfer roller.
- The paper reaches the registration roller.
- The registration sensor (S18) is turned ON and aligning is performed.
3. Carriage operation:
Scan motor (M1) ON
→ The exposure lamp (EXP) is turned ON. → White shading compensation is performed.
→ The scan motor (M1) is turned ON. → Carriage-1 and -2 move forward.
4. Within a certain time after carriage operation:
→ The registration motor (M16) is turned ON. → The paper is transported to the transfer area.
→ The copy counter operates.
5. Within a certain time after the registration motor (M16) is turned ON, the transfer belt bias is turned
ON.
6. Completion of scanning
→ The exposure lamp (EXP) is turned OFF.
→ The scan motor (M1) is turned OFF.
→ The registration motor (M16) is turned OFF (after the trailing edge of the paper passes the
registration roller).
7. Paper exit
→ The exit sensor (S22) detects the trailing edge of the paper.
→ The equipment enters the toner supply operation when developer material toner density is lower
than the preset value.
→ The main charger, developer bias and discharge LED (ERS) are turned OFF.
→ The drum, transfer belt, fuser unit and developer unit stop. Each fan returns to the ready rotation.
→ The feed motor (M20) is turned OFF.
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OUTLINE OF THE MACHINE
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