The difference between this model and the previous (Aficio SP C830DN/C831DN) and similar (MP C4504/C6004) models are as follows:
Process Control
Processes upon execution of SP2-111-004 (Forced Line Position Adj.: mode d) and [Color Registration] in the User Tools have been changed.
Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/ SP C842DN |
|---|---|---|---|
MUSIC | There is no SP2-111-004 in this model. [Color Registration] in User Tools executes "fine adjustment -> fine adjustment". |
| |
Laser Exposure
| Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/ SP C842DN |
|---|---|---|---|
Beam system | Two-beam system | Four-beam system | |
PCDU (Photo Conductor and Development Unit)
| Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/ SP C842DN |
|---|---|---|---|
Removal of PCDU seal | All colors: pulled out by hand | All colors: wound manually using a lever | All colors: wound automatically when turning on the power |
Harness at the front part of the PCDU
The harness at the front part of the PCDU has been replaced with a drawer-type connector [A], so there is no need to disconnect a connector when removing the PCDU.
The toner supply port cap has been replaced by the shutter [A], thus reducing the risk of toner scattering when replacing the unit.
Image Transfer and Paper Transfer
| Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/ SP C842DN |
|---|---|---|---|
ID Sensor Shutter | Available | Not Available | Not Available |
Feed, Transport
| Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/ SP C842DN |
|---|---|---|---|
Bypass tray, Main machine jam code | - | The following codes are used to isolate the cause:
| |
| Main tray paper exit | - |
| |
| Removing wrinkles in tray | (No mechanism is required for removing wrinkles because the maximum width is A3.) | Support components and decals are provided. User installable | |
Fusing
| Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/ SP C842DN |
|---|---|---|---|
Curl Correction | Not Available (No Mechanism) | Equipped with a curl correction mechanism at the fusing exit. | |
Fusing System | Direct Heating (DH) | New Color QSU-DH (Quick Start Up-Direct Heat) fusing | |
| Heating Width Control | Heating width control depending on the paper width by 3 lamps, each with a different heating position. | Heating width control by 2 lamps with the center/end heating positions and the variable end shield plate with the heat conduction plate | |
| Fusing Shield Plate | Not Available | Heat conduction plate added to the shield plate | |
| Fusing Shield Plate Position Sensor | Not Available (No Mechanism) | 1 sensor | |
To prevent coming in contact with the AC harness, the drive mechanism of the fusing unit’s shield plate has a cover [A] over it.
Electrical parts
| Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/ SP C842DN |
|---|---|---|---|
OPU | 4.3-inch color LCD | 2nd generation Smart Operation Panel (10.1-inch WSVGA) | |
Exterior Cover, Air Flows (Fan Control)
| Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/ SP C842DN |
|---|---|---|---|
| Proximity Sensor | No | Equipped | No |
Noise control | - |
*1 Exterior parts engage with each other to reduce the leaking of noise from the drive mechanism. | |
| Controller box cover | Interior type (metal cover) | Serves also as the exterior cover (Plastic-metal assembly) | |
| Power switch location | Left of the waste toner cover | Right of Tray 1 | |
Drive part
| Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/ SP C842DN | |
|---|---|---|---|---|
Noise control | Not Available | From the usual non-helical gears [A], we increased the use of helical gears [B] to increase the efficiency of engagement. This has also reduced the rattling noise due to the increased gear engagement. | ||
| Silencing Grease for the Drive Parts | - | Grease is applied to over 100 parts, including gears, shafts, and bearings, to reduce the driving noise. | ||
Options and Peripherals
| Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/SP C842DN |
|---|---|---|---|
Stapleless stapler | - | Equipped | Equipped |
| Finisher paper exit guide mechanism | - | Equipped | Equipped |
| Attention light | - | - | Equipped |
| Internal multi-fold unit | - | - | Equipped |
| 4-bin mailbox | Equipped | - | Equipped |
| Clone PS* | - | - | Equipped as a standard feature |
*For details of the functions of Clone PS, refer to Adobe PS vs. Clone PS.
Security
| Items | SP C830DN/C831DN | MP C4504/C6004 | SP C840DN/SP C842DN |
|---|---|---|---|
Program/Change Administrator screen at the first power-up | - | Yes | No |